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 أعطال وصيانة تليفزيون-Repair-TV-LG

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عدد المساهمات : 2369
تاريخ التسجيل : 16/06/2010
العمر : 56

مُساهمةموضوع: أعطال وصيانة تليفزيون-Repair-TV-LG   الخميس يونيو 17, 2010 1:35 pm

LG RE-21CC30RX



[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]..............[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]


CPU - ST92195C7B1/MEC
EEPROM - 24C08
SMPS - MC4406P40 + MTP6N60E

Video - STV2247H
SP - MSP3410G B3 V3
Sound - TDA7266L (M)
VA -
TDA8174AW
Tuner - CTF5510A (Thomson)
RGB - TDA6107Q
FBT - JF0501-
19238 ( 30017788 , HR80016)
HOT - BU808DF


Enrolled in repairing TV Vestel VR2106TF. Chassis 11AK30A11. The defect of this
- in stand-by mode BP quietly " yelps , and the operating mode everything is
normal. At the autopsy it was found that the filter capacitor C -827 4700mkf x
16 volt outlet BP vspuchen and it unstable voltage 22-24 volts . When the TV set
in working mode it stable nine volts . And the TV is working properly. They
tried to replace the C- 827 to a new tank 4700 microfarads at 25 volts - the
effect is the same, only now unstable voltage on C -827 from 30 to 33 volts .
And in operation again everything is normal stable 9 volt . Who face ? ?



while others stress how?

by rc5 answered

verify the OS - and its optocouplers stud.

Show do not forget to put a Q804 and D801 near optocouplers , already two cases
for this month



The repairs came from a broken back for repairs came from a broken back BU808DFI
in high parts. After replacing the earned but the food at 135 instead of 115V ?
. BP collected at 44608r40 . Des Lombards litas in the primary and optocouplers
but without results. He left in the duty room nanoparticles , uprom again
croaked BU808DFI in the duty room , when it replaced again 10.2v , listened to
him, but he barely audible hush ( in the duty room ), and the collector napruga
changes 10.2 - 10.4 . Working day and night can work. Vnaydenoy in nete scheme B
+ = 150V - perhaps it should be for a 51 pipe ? javascript: emoticon ('[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]' ) who face , tell me ,
pliz . Thank you in advance .




Check , and better replaced right away cond 10mkf in the basic chain BU808.
Kondyuk OK. The transistor die only in the duty room and not immediately, but
since it does not work prikopatsya .

Also it was like BU808DFI in JVC AVK14T3. And Litas everything changes, such as
required , and 808 normal set (of the same party and with a normal resistance to
b -e - in other TV work ) and heating was weak in the office . mode . and fly , too, only with a long work in Dej . mode. Never
understood what it was. And there is resistance in the collector circuit
penultimate stage picking (somewhere found on the boards ).
Flew only in Dej . mode. All done on line. It will
soon have , probably, bring it.


I too. Only in the night . Even probyval device put on the
collector , after 3 hours , when I came kurnut - dead skunk . I could not
tolerate 5 min.


And also in the night .


In the duty room heated ? Hush pitalka in the case when dry Konda of B + or a
small container S817 ( necessary to select manually for each apparatus
individually) . In the duty room transistor must not die - the only reason -
spontaneously switched briefly to the operation mode from power surges - the
reason , I think , be found in the piping SCR MCR22 - very often , this scheme
becomes unstable .

Check the resistor R817, and better to replace it and see S857 - 100p SMD
performance , the second leg 44608 . Often missing - need to install .
الرجوع الى أعلى الصفحة اذهب الى الأسفل
SAD
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عدد المساهمات : 843
تاريخ التسجيل : 16/06/2010

مُساهمةموضوع: رد: أعطال وصيانة تليفزيون-Repair-TV-LG   الأربعاء سبتمبر 08, 2010 9:23 pm

LG RP29CC25 -Vestel chassis 11AK37- 8



[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]................[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

Micom - ST92195C7B1/0EE
Memory - 24C08
SMPS - MC44608P +
MTP6N60E/SSP7N60A
Video - STV2248C
Vertical - STV9306
Sound -
TDA7269A
Tuner - UV1315, 1316 , 1336
RGB Amp .- TDA6108, STV5112
FBT
- 1372.0093 (HR8730)
HOT - BU2508AF


عدل سابقا من قبل عمرو أشرف في الثلاثاء سبتمبر 28, 2010 3:39 am عدل 1 مرات
الرجوع الى أعلى الصفحة اذهب الى الأسفل
SAD
نائب المشرف العام


عدد المساهمات : 843
تاريخ التسجيل : 16/06/2010

مُساهمةموضوع: رد: أعطال وصيانة تليفزيون-Repair-TV-LG   الأربعاء سبتمبر 08, 2010 10:25 pm

shassi VESTEL 11AK37- 8 net zapuska CP ( decided )


Processor ST92195C3B1/OEO
Videoprots STV 2248
When you turn entered into
the office. In the derivation of the duty room could hear the faint whistling .
Immediately it became clear that the drop dead line transistor . Make out
sounded - so it is. Changed to a new, propayal all over the base . Frankly in a
hurry ( pressed for time ) . Included . TV starts up again and it was noised as
be something hem . There was a smell of burning . He looked - burned R639. He
took off his board , took away with him. The next day netoropyas examined - the
cause of all ills was a bad contact in the reservoir S621 vyhldnogo transistor .
Bleached resistor R639 was replaced by 10 com . ( like this should be the
resistance of the circuit) . Including - silence . That's really the second day,
I'll bet - I can not understand why there is no run. Des Lombards, STV 2248,
unsolder TDKS , check for pulse start - they are not . Nutrition STV 2248 - okay
. Substituted S621 , S618 - did not help.
I can not understand what was
going on - load up to ugliness - help , help they can ....
Спасибо !
Well, then switch off S646 . The pulses must be at 48pin ! [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]


the launch equipment (PPE) should be checked on an oscilloscope
conclusions STV2248 with the power off with the withdrawal of three
TR601. Togda and licks neispravnosti become obvious reasons .

You wrote that " He took off his board , took away with him. "
This type of
chassis ?
A osku also took off ?
Starting something to do with oskoy ?

And the fact of the posts somehow do not understand where behaving repair .
Answer to row :
scheme would take from here : [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذا الرابط]
1 . Current , respectively, grew out of a poorly propayanoy S621 , which
subsequently propayal (and later substituted ) .
2 . C619 unsolder and

measured the ( now try to substitute )

3 . Osku loading the pipes from 54
(although I think that the initial launch should be without it ) .
4. Pulses
start checking ostsilografom .

Measured the D605 at 200 IOM . - a drain on 7mom - Dolno do not know whether to
be so - temporarily Framed HER307

Jettisoned three output TR601, vypayal S646 .

Pulse start
NO !
Mozhet uletel proc ? ?
Although pulses SDA and SCL are .....

Damn what else can be ...




عدل سابقا من قبل عمرو أشرف في الثلاثاء سبتمبر 28, 2010 3:43 am عدل 1 مرات
الرجوع الى أعلى الصفحة اذهب الى الأسفل
SAD
نائب المشرف العام


عدد المساهمات : 843
تاريخ التسجيل : 16/06/2010

مُساهمةموضوع: رد: أعطال وصيانة تليفزيون-Repair-TV-LG   الأربعاء سبتمبر 08, 2010 10:31 pm

Someone will tell whether it possible to replace
ST92195C3B1/OEO
Vestel / T3X210

the ST92195C3B1/MBP
OEM STTV
V2.1
Certainly percent. But he is usually called STV224x

Did not rush me at once prots.Impulsy run times can be
evaluated , whether it appears at all, in principle, only the very first time on
the sweep of the oscilloscope 10 -20mS ( HR ) , they appear on a split second
and if the percent found crashed somewhere Then once they chopped off , and
where you look - pulses directly at the foot of the processor ? And it is cut
off from the planar resistor percent in the scheme.



Has found dead S643 . Replace - the result is the same .
With the
introduction of television into the office and back osilograf catches only
splash . The presence of pulses is not observed.

Incidentally in this chassis , if there is no frame , then blocked impulse line
?

He remembered that 2 times a 11AK the situation was very
similar , was not run for a second row , power supply immediately went into
defense, and it was - the closure of 180V power video amplifier , pierced
TDA6107, 6108.Pomnyu very surprised if a smart defense.

Timur festival Lika [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

By the way , there are still protecting at breakage of the heater ..

By the way , there are still protecting at breakage of the heater
..
where to eat? Share [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

Timur see lichku cool you replaced the items that I wrote to you ? [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

All thanks to Romney - TV repaired for a long time - небыло time to reply !

Turned out to be dead R426 2.2 com .

thank you very much , Timur R426 croaked

sergeikarp wrote:
Timur see lichku cool you replaced the items that I wrote to you
?
, love affairs resolved through
lichku , so people will not embarrass, but to repair only in the Forum to write,
to be honest people had seen it all
, Agreed [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]


عدل سابقا من قبل عمرو أشرف في الثلاثاء سبتمبر 28, 2010 3:48 am عدل 1 مرات
الرجوع الى أعلى الصفحة اذهب الى الأسفل
MSA
مشرف عام
مشرف عام


عدد المساهمات : 542
تاريخ التسجيل : 16/06/2010

مُساهمةموضوع: chassis 11AK37- 8 - / LG RP29CC25    الأحد سبتمبر 19, 2010 6:49 pm




[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]................[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]
OF CHASSIS:

Micom - ST92195C7B1/0EE
Memory - 24C08
SMPS - MC44608P + MTP6N60E/SSP7N60A
Video - STV2248C
Vertical - STV9306
Sound - TDA7269A
Tuner - UV1315, 1316 , 1336
RGB Amp .- TDA6108, STV5112
FBT - 1372.0093 (HR8730)
HOT - BU2508AF

Processor ST92195C3B1/OEO
Videoprots STV 2248
When you turn entered into the office. In the derivation of the duty room could hear the faint whistling . Immediately it became clear that the drop dead line transistor . Make out sounded - so it is. Changed to a new, propayal all over the base . Frankly in a hurry ( pressed for time ) . Included . TV starts up again and it was noised as be something hem . There was a smell of burning . He looked - burned R639. He took off his board , took away with him. The next day netoropyas examined - the cause of all ills was a bad contact in the reservoir S621 vyhldnogo transistor . Bleached resistor R639 was replaced by 10 com . ( like this should be the resistance of the circuit). Including - silence . That's really the second day, I'll bet - I can not understand why there is no run. Des Lombards, STV 2248, unsolder TDKS , check for pulse start - they are not . Nutrition STV 2248 - okay . Substituted S621 , S618 - did not help.
I can not understand what was going on - loaded up ugliness - help , help they can ....
Thank you
Well, then switch off S646 . The pulses must be at 48pin ! [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]
And the launch equipment (PPE) should be checked on an oscilloscope conclusions STV2248 with the power off with the withdrawal of three TR601. Then the closer will become clear cause malfunction
" He took off his board , took away with him. "
This type of chassis ?
A osku also took off ?
Starting something to do with oskoy ?
And the fact of the posts somehow do not understand where behaving repair



Answer to row :

1 . Current , respectively, grew out of a poorly propayanoy S621 , which subsequently propayal ( and later substituted ).
2 . C619 unsolder and measured the ( now try to substitute )
3 . Osku loading the pipes from 54 (although I think that the initial launch should be without it ).
4. Pulses start checking ostsilografom .
Measured the D605 at 200 IOM . - a drain on 7mom - Dolno do not know whether to be so - temporarily Framed HER307

Jettisoned three output TR601, vypayal S646 .
Pulse start NO !
Can percent flew ? ?
Although pulses SDA and SCL are .....
Damn what else can be ...
Someone will tell whether it possible to replace ST92195C3B1/OEO
Vestel / T3X210

on ST92195C3B1/MBP
OEM STTV V2.1



Jettisoned three output TR601, vypayal S646 .
Pulse start NO !
Can percent flew ? ?
Although pulses SDA and SCL are .....
Damn what else can be ...
Certainly percent. But he is usually called STV224x

Did not rush me at once prots.Impulsy run times can be evaluated , whether it appears at all, in principle, only the very first time on the sweep of the oscilloscope 10 -20mS ( HR ) , they appear on a split second and if the percent found crashed somewhere Then once they chopped off , and where you look - pulses directly at the foot of the processor ? And it is cut off from the planar resistor per cent in the scheme .
Has found dead S643 . Replace - the result is the same.
With the introduction of television into the office and back osilograf catches only splash . The presence of pulses is not observed.
Incidentally in this chassis, if there is no frame , then blocked impulse line ?

He remembered that 2 times a 11AK the situation was very similar , was not run for a second row , power supply immediately went into defense, and it was - the closure of 180V power video amplifier , pierced TDA6107, 6108.Pomnyu very surprised if a smart defense.




By the way, there are still protecting at breakage of the heater ..
All thanks to Romney - TV repaired for a long time - небыло time to reply !
Turned out to be dead R426 2.2 com R426 croaked .
Love affairs resolved through lichku , so people will not embarrass , but to repair only in the Forum to write, to be honest people had seen it all
Agreed [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

I remember very surprised if a smart protection .
Flyback transistor intact. But TDKS JF050- 2515 short-circuited . Special than replace it? [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

I put something that is at hand , if only for food approach and on weekends U? and diagonally.
Legs are used to cut ...
I put something that is at hand , if only for food approach and on weekends U? and diagonally.
Legs are used to cut ...
In such cases, the amounts due : Hands would be cut off ! [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]
what to do if sometimes strochnika no in sales.
I'm yesterday's old 11AK30A11 set of Orion ( native worth more 1000r ) , goes perfectly , cut all 4 tracks .

But , icon ... [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]


[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

How HR fits ???????? HR8730 or HR8029 ?????? Weácan experts at [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

If the marking lost 1 (JF0501-2515 ) is HR8730.
8029 to 19 chassis is ( for the diagonals more than 21 ") .
Look on the diagonal is less than or equal to 21 " - puts 8730 .
If more - 8029 .
JF 0501-2515 = HR8730 yes it is
Ingredients: prots.st92195c7b1/oee , video ctv2248c, frames ctv9306 food 44608p. at the TV hush lok supply all the voltage jump , the LED on the face flickers in time with him, but if you close the conclusions of optocouplers (not from the hot side ), then the PSU enters the all naprugi output in normal and normal on in the operating mode. tell my people know what this could be the reason . optocouplers changed .
First, find out where ganch sits in the primary or in secondary housing .
Raise thyristor , or loaded on a light bulb 25 -40W. See how behaves PI .
In general, this topic is beaten , poroysya in the search.
By the way check quartz 3,58 (NTSC).

Try to put optocouplers with a lower CTR
about pisishki opornik teelpeshka or es eshka , or harness .

Are you talking about? Explain please, or we villagers do not understand .

The TV hush lok supply all the voltage jump

check food (st92195c7b1/oee), if it walks in the range 0 -3v, then I percent.
if there is a stable 5v , then check an external stabilization

check quartz 3,58 (NTSC).

And you have all these tips to repair BP ? ?
You optocouplers ( LED in it ), that is in control? See his administration.
pisishka - optocoupler
opornik - The voltage for adjustment
teelpeshka - it is aenka , steering errors , crap tripod 431 ,
es eshka - previously used SE110- 145 .
I finally can , it is also from the village , as all this is explained by the scientific tried obyasnt . Got it? [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]
= the output of two ms44608 Install a filter capacitor 100 peak
A Conder in secondary housing have not tried to watch ?
Conder has changed in the secondary housing , tl431, but interestingly enough I was shooting instrumentman and when soldered back tsykane stopped. I have since D802 BA159 voltage jumps on the oscilloscope looked too impulses kakieto swaps , and telecom out of the duty room with a 3- 4th attempt and C829 4700,0 pulses are present can it be so ?

What are the impulses at the S829 ? Expressed himself more precisely.
You thyristor raised ?

recess is present on s827 which by 5voltam IC802
Why thyristor up (and which)
What do you mean what ---- D889. [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة] Changed to that fig Conder , often buggy .
And to know why raise the thyristor then go down to the search, it 's all there.

You PSU on a bulb sinkers ? ?

control processor ST92195C3B1/0E0
Video Processor STV2248H replaced STV2248C
memory 24S08W6
TV is almost new , burned diode D605 - BY228 replaced by an identical and D606 - UF5407 replaced by HER308.
I suspect that the configuration menu is not suitable for STV2248C.
Tell my how to enter the menu and change the options for adjusting the horizontal, vertical, and a pillow with the two sides .

"Menu " , 4. 7, 2, 5. Then it seems the red button. and everything is clear.

In the menu came . The problem of such interpretation can be seen the parameters options and last letters of their names. The top ends in SD. Assuming from it which lines to change ?
Try the green button in servise.Dlya ak 36 rolls .
Green Button has helped, and then that's what. Vertical adjustable, horizontal as bonded and parabola is not regulated . Found the scheme . What does the STV9306, can she covered ? Read the literature no .

Well, if there is no way out of , you can probably just too lazy to use search engines .
There were a pre-sale repairs once two TVs are not out of the store , but from another service center . They did not repair , so as not waited for spare parts from the factory . Flaw - do not have all functions. We opened both the TV. proved faulty D- 605 BY 228 and Q601 BU-2508AF. The reason for the breakdown was a defective throttle L603 1mH in the chain of EW in both cases. Crash ferrite , and therefore sozhenny winding the throttle on both TVs. The original reactor was replaced by a homemade , wind it on the same frame of ferrite 2000.
Two sections of 78 turns of wire 0.33 to one side and two sections of 78 turns in the opposite direction. The ends of the windings soldered in parallel, as in the original. Now , both the TV work , but the image on the TV screen size has increased , so that the letters menu beyond the edge of the screen. The image has barrel distortion - the image pitcher . Field-effect transistor Q602 BUK444 defective . Have increased nominal capacity of S627 with 0,47 mkF to 1,47 mkF - the size of the image came back to normal , but barrel distortion survived . Adjustable via service menu did not help . Who knows what 's wrong? Please answer a little more , without shortcuts.

check reistor 2.7Om in the chain of BUK- 444.pri defect L603 podgaraet.a new L603 turned 1mH.
than can be replaced BY228

Replacing BY228 BY328 fit 1000 ... 1500v, 3A

In what place there is a resistor to 2.7 ohms ? ? If , on short to short container S648 3.3 uF at 160 volts, then the image on the 2-3 per cent increase in size uniformly in all directions. Parameters of the throttle is not measured , but the installation is consistent with the same second throttle absolutely no effect on the image.
We tried to parallel the same reactor set - also no change of the image.

what are you worth of short circuit in the OC. I wrote about a chain of E / W.rezistor 2.7 ohms in the circuit between the diode modulator and BUK- 444.
if the radiator BUK- 444 cold it does not receive signals. I have to work now, 11AK19-8A , and also the problem with the coil . Check the inductance- slip off a lot of questions . I have a new 1.000mH. what parallel / series another does not change suggests about its unsuitability .

When it comes to resistor R612 in series with the chain L- 600 15mH and runoff Q- 602
BUK- 444, then we are in the denominations of the plant is not on the scheme - for example, R612 for 33 ohms , and resistor R689 which vmezhdu drain and gate at the Q- 602 - instead of 10 ohms is at 5.1 ohms. labeling . Most likely choke L- 603 1mH all still must have accurate winding data . But, at the plant it now
stock no .

The same problem , rewind L603 size bolshoy.Esche can add something that voltage from the
diode modulator is underestimated and because of this chain of E / W not working pravilno.Vse thought too about the throttle. Who will have the opportunity to throw the other , write to reassure ( soul )!!!!
And initially the distance between the ferrite was about 1mm .
Throttle changed at TSR 1-1 ,
this izvraschalsya.I not to be confused 11AK19 and 37, they are different.



The original reactor was replaced by a homemade , wind it on the same frame of ferrite 2000.
Two sections of 78 turns of wire 0.33 to one side and two sections of 78 turns in the opposite direction . The ends of the windings soldered in parallel, as in the original .
Can the magnetic field of 2 windings vichitivayutsya ? Already prompted by becoming TSR - 1. [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]
TSR in the chain IS NOT WORKING ...... THERE NEED ONLY RIGHT AND YET PODKINESH RELIABLE OR A similar scheme will go to the FOREST ON ONLY TRY 90RF4 C MS3
Cause of the defect was found in a makeshift drossele.Prichinu so - have karskas from the old throttle and wire wrapped so what was at hand ( 0.33mm ) in one side of two sections of 75 turns in the opposite direction , too, two sections of 75 turns and soldered them in parallel . Vytkiv had to wind the wound was less than at the factory ( from 78 turns ) otherwise would not go . According to the theory of the exact number of turns on Q drossseley affects slightly - much more important than what is used in the manufacture of ferrite choke .
Therefore, carefully collected all the remnants of the native ferrite and glued them as superglue = =.
They put the throttle on the board and to handle a service menu barrel distortion .
Now television is on the run - but there is one but
whether in working condition bask ferrite drossselya ? ? By the way sink instrumentman heated too - hand suffers 10-15 seconds . This is after 20 minutes run . Maybe these ferrite chokes torn from heat ? ? In any case, the perimeter of ferrite wrapped it in 4 layers of duct tape .
Everything.

Adding to the previous one. Corporate throttle at 1 mH to get hard - they are long gone , even in stock plant. Therefore the yield is only one rewind choke on the same frame as described above 0.3-0.33 mm single wire winding on two sections in one direction for 72-78 turns and winding back the other two sections of 72-78 revolutions sealed their paraller . Then all the pieces of ferrite carefully glue superglue = = so that the glue would have dried up . Next, if there are some small chips of ferrite and difficult to put in place then , after bonding the ferrite around the perimeter of frame must pull him with a material that is not afraid of overheating and rupture of the high temperature . In this case, the new home-made throttle does not burst from the heat . And the TV will work fine . Possible small distortion of the raster in the corners of the screen . Visible only when you connect the generator test signals.

Interesting all the tips than replace the throttle of the domestic corporate counterparts ? ? Here are tips to try to change our corporate throttle throttle
DRT -1 -1 wound on the same block of line scan MS-3 from our TV 3 USTST . We tried not come. The effect is the same if the reel homemade throttle at the same frame but with a ferrite with pronitsemostyu 2000NM . Throttle is not included in the saturation and it and the radiator instrumentman remain cold. The TV can operate for days but the " barrel " better " pitcher " remains, as it does not regulate the service menu.

P.S.
In the forums there is a new board than to replace the corporate choke - choke supply DC -1
from UPIMTST leaving 1 / 3 revolutions . Who will test result please !

Hello . Once again, the replacement of corporate choke L- 603 1mH in chains EW large -diagonal TVs VESTEL and clones . We found the most simple reshenie.Pokupaem exactly the same frame with 4 sections and W shaped core 2000hm, consisting of 2 halves of a letter S. Then pulls the two sections of 75-78 turns of wire 0.3-0.33 mm in the direction of clockwise ends the first winding of two sections Seal to pin on a frame , then shakes his second of the two winding sections of 75-78 coils of the same wire in the opposite direction and the ends of the second winding Seal to the same two pins. The ends of the ferrite is not glued together yet. Then instead of the capacitor in the circuit S627 PL- 601 0.47 mkF x 400v ( on the scheme is marked as 0.82mkF x 400v) solder in circuit board capacity to 1.5-2mkF x 400v. Installing a larger capacity in the new home-made throttle reduces the size of the image. Next. Begins to decrease ( select ) constant throttle podkladyvaya between the ends of W -shaped iron plate from the PCB . Some within the total thickness of 1-1.5 mm with both storon.Posle what we see that the " barrel " is adjusted by remote control through the service menu. Then glue the choke.

Or wraps around the perimeter of duct tape which tolerates heat . Throttle set at cost.
Homemade throttle compared to the brand is heated much less than about 40 g Ts
Radiator instrumentman also runs cooler . Picture
on the screen when applying the test signals on the " good " . The windings on the throttle swung in bulk in your hand .
Then fine tune the accelerating voltage G-2 Flyback transformer on the smaller side (turn at 10-15 degrees counterclockwise) .
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مُساهمةموضوع: chassis 11AK45 - LG RE-28CZ20   الأحد سبتمبر 19, 2010 7:41 pm



[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]...............[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]


OF CHASSIS:

Micom - datashit on SDA555XFL
EEPROM - 24LC16
SMPS - MC44608P40 + 6N60E
SAW - K3953M, K3958M
Video - VDP3134Y B2
Video Switch - TEA6415C
SP - MSP3410G
Sound - TDA7269A
VA - STV9376FA
Tuner - UV1316
HOT - BU2508AF
RGB Amp - TDA6109JF

Rainford TVF- 7491 chassis is not quite sure 11AK45, there is cushion horizontal with a characteristic deflection of the center of the screen. Is it possible to correct the defects of this via the menu , if not Give that may be because missing from the scheme [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

Check the first transformer correction,

"Pillow horizontally --------- this is ? Horizontal or vertical lines are curved ?

Curvature of horizontal lines ....




Check the first transformer correction,

I would say probably choke correction .

Once set DRT - 1 instead of the throttle ( too lazy to rewind ) and all ok !




If you want you can accurately find out what the choke correction and its designation by the scheme and where you can find a diagram on a miracle

Good afternoon. They brought in for repair telecom Sharp 29LF92EC with broken power supply . Changed instrumentman chip and checked all of the primary tossed optocouplers and TL431 capacity na16 4700 volts . All the load pushed hung a light bulb - will not start the power supply. In short there is no secondary housing , coupled with all the secondary housing and the inclusion of Telica blink two LEDs on the LM317 at the entrance to 5-5.5 volts at the output of 2 volts for an 8 foot MS44608 235-250 volts. in the search engines all looked . Help understanding where dig is just do not know where to look for defects of . [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

Chassis 11AK45 ( straighten the topic under RULES ! )
In figure 2 LM- ki a stab at 3.3 volt -second 3.3 and 2.5 .
A 8 foot MS is the detector voltage , so that everything is normal .
PS do you work (otherwise how input LM napruga [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]
Another thing that you have it neperehodit in working mode.
Try vypayat thyristor - without BP operates only in the working mode !

Sorry forgot to specify the chassis 11AK45 . thyristor vypayal I included all the same . by LM input 5vlt HA2 stem from 2.9-3.2 volts at 3 foot by 1.9 - 2.1volt .

Which LM- Ke meryaesh ? ? On or IC102 IC 103 ?

Does someone have a complete circuit with 11AK45 chassis . I downloaded a file shemku but it's totally porezanaya can someone have a better skinte please .

How porezanaya ? PSU there on one page ! what more do you want?

At IC103 1nozhka - 5.5volta
2nozhka - 2.2 Volts
3nozhka - 3.3volta .
At IC102 1nozhka 2.2volta
2nozhka - 1.4volta
3nozhka - 0.8volta
And if there shemku all on one sheet .

Search in this circuit, particularly semiconductors.

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]





All the load pushed hung a light bulb does not start power supply

He did not run to start it must vypayat thyristor , Q103, load light bulb instead of a line , the BP should earn when you run , meaning the cause is not in it .




Well, tell me what PSU 11AK45 chassis differs from the 30th ! Che it incomprehensible . Simple BP . Launch it can be whatever you like ! Do not run it ( in the absence of short-circuit and leakage ), only usyhe Lt. ! They do not fuck !

Good all day .
Universum chassis 11AK45B5
Ingredients :
Percent. SDA5555
MSP34116
Memory - 24LC168
They brought in for repair with a broken BU2525AF after replacing launch all such . normal according to the scheme but the problem is that does not display the menu, sound none at all but what with the remote switch channels and adjust volume .
Pre blogadaren .

And the service did not go ?
TYPE memory is not changed ?



Percent.
MSP 34116
SDA 5555
So this all the same percent ? [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

does not display the menu
- Here and write the necessary and sufficient conditions ( signals ) to form the OSD ... sentence or the OIG , SIOH , rgb- window , percent .... [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

I have a scheme exists, but it is too early to answer , maybe, the author does not know where percent . Without this it would look GSO ?

proce ect Legs arrived at staffing and lower-case clock pulse .....!
Without them, the OSD will not !

If I understand correctly you have to look at the controller
SDA 5555 pulses at 12 and 23 foot .

that's not guessed ! You have something they say such shaped as letters SYNC or SSC?

He checked ostsillogrofam pulses at 19 (SYNS) leg is 2,5 V and the output (OSD) 38-39-40 0,5 V.I even noticed that in the duty room S +3,5 V-S +2,5 V but in working both for the 5V
LM317T (IC103) changed the result of one - owner vehicle zhe.U asked to breakage OSD bylo.Ne can understand what connection OSD and line transistor.
Please correct me realize I'm not the first time repair
tel . but with such defects , met for the first time .
[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]




I'm not the first time repairing bodies.

And you do not know how the GSO ?



TSCHERNOW wrote:
exit (OSD) 38-39-40 to 0,5 V

Pulses , or what? In addition to these signals should also check the FB and the passage of all signals to the VDP.

The output (IC500) parody of the impulses RGB

R - bottle Chernov . Flyback itself does not crash on that is the reason , it must find a home for one and you'll know why there is no OSD. Well , when you know that are looking for , and when you see on the screen , which is not hut . Good luck.

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة] Thank you for your sensible sovet.No all know is impossible , in this and ask about a replacement BU2525AF so I can say : he had a leak in one transition . In general, telecom spent 6 years and I think there is nothing surprising here.

6 years old telly ! And why not voiced voltage ? And under the microscope on board watching ? Everything else mentioned above. [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

الرجوع الى أعلى الصفحة اذهب الى الأسفل
MSA
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عدد المساهمات : 542
تاريخ التسجيل : 16/06/2010

مُساهمةموضوع: LG CB-14F80 - chassis 12.1   الأربعاء سبتمبر 22, 2010 9:16 pm

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

OF CHASSIS:

Main - 6BZ190- 06
CPU - ST6387B1/FIO
SMPS - datashit on TDA16846 + datashit for 2SK2545
IF -datashit on STV8225 / STV8223B
Color - STV2180 / STV2116A (STV2112B)
Vertical - datashit on TDA8174AW
Sound - datashit on TDA2822
TXT - STV5374
Tuner - UV1315
FBT - 1142.1605 (HR8030)
HOT - datashit on BU508D
RGB Amp - STV5112

In the diagram, label CTV chassis12.1. The methods described in telemaster.ru not help.

That's the archive:

Remaking LG (BEKO 12.1/14.1) at NN5099K
need to go into service . Login: close to the remote 10 and 17 feet mikruhi . Menu is displayed .
Under Sound + or - to set BG + DK, exit again to close the 10 and 17 feet
-------------------------------------------------- ----------------------------------------------
Login service for BEKO - TVT 28162 , pr.SDA20563-A512, v.pr TDA4680:
when you switch on , hold "VOL +" and "CANNEL UP", output -switching in Dej
rezhim.Dlya adjust white balance , click on the remote control saturation ,
there is a position "AUTO WBALANSE", select it , and the balance is established automatically .
To remember , click "OK ".
-------------------------------------------------- ------------------------------------------------
BEKO NR7KQ service
Is ST6387B1/F1A chassis 11AK20M -6 :
Consistently over 4 seconds. TV VOL- click and then with the remote :
PROG, -, TV ( window)
-------------------------------------------------- ---------------------------------------
This is the entrance to the service for Beko:
Option 1 : Hold down the button on the TV (PROG-) (PROG +) turn on the TV
network switch.
Option 2: Close the remote control at the chip legs 10 and 17.
-------------------------------------------------- ------------------------------------------
Unprotect .
When it comes to BEKO processor SDA20563xxxxx then walk into
Service to do any manipulation and withdrawal.
-------------------------------------------------- --------------------------------------------
Try the native remote zakototit 10 and 17 or 10 foot chip i13nogu happens in different ways .
-------------------------------------------------- -------------------------------------------
BECO ELECTRONICS- ENTRY SERVICE
Chassis BEKO G80.190- 02 12.8 21 ^ Component Position Number type details Note Processor
SB712005 T0502036 EEPROM 24C08 EPROM V-Processor STV2249C H22PC0217 A-Processor SDA5552
Tuner UV1316 / A L 6-3 Using the book . RC -5 '- contrast 'can enter into service mode.

rc mac2000 cod1164 button lock-service

thanks for the detailed otvet.Delo that the question is not mine , but my kollegi.Kompa , let alone the Internet it does not , so I starayus.Ni one of these options are not podhodit.Prots there ST6387B1/F1A , but on the face - just three knopki.Odnoy mode is selected , the other two , actually reguliruetsya.Posemu
Rottor wrote:
Consistently over 4 seconds. TV VOL- click and then with the remote :
PROG, -, TV ( window)
does not work .
venelin, something nothing is clear .

To enter the service needs special - control . Perhaps in the native remote
There are hidden button entry and exit.

They gave the hosts a maladjusted balansom.Babulya happy and so .

Images can uglyadet , sound and osd is ok. With video exact same song. Can anyone remembers [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

Sergei_l, exc how are you?

Add accelerating TDKSe .

With the addition of the accelerating - bright screen , the image barely visible . Yes , we must deal with the ogre . current beams . Thank you.

I encountered the same problem in this model . Was to blame SMD capacitor 100nF S562 - showed 100 ohms.

Videoprots STV2116A - replaced by the 2118A .
Percent ST6387B1/F10
BEK12.1- 1
Can not include SECAM !
Manipulations with diodes near percent and in service ( try to put Auto , PAL, SECAM ) to no avail .
On the chassis 12.1-2 processor ST6387B1/FLI BEK12.1- 2 set
Diode D408 - and all the beam, and here - nivkakuyu !
Urgently need advice!

12.1 chassis cpu ST6387B1/FLI BEK12.1- 2 SEKAM STV2116A -> STV2118A DK G1968 -> G1952 + SFE diodes can configure SECAM can be included only in the service ! 16PIN - XX PIN D401 - (.7) UHF ONLY D402 - (.Cool ITALIAN ------- D403 - ( 10 ) OSD BACKGROUND D404 - ( 1911 ) ENGLISH D405 - ( 12 ) GERMAN--FR ENCH - SPANISH D406 - ( 13 ) POWER ON ONLY REMOTE D407 - ( 14 ) SECAM L / L 'D408 - ( 15 ) SECAM BG D409 - ( 1941 ) D410 - ( 1940 ) D411 - ( 39 ) AV2 D412 - ( 38 ) AV1 ( ? ) SERVICE decides spec - console IAC 2002 service code 1164 (user code 1263 ) enter LOCK, exit TV / SAT, system ERASE, memo M / S has control : VERT AM, VERT POS, L VER, HOR POS ( 0 .. 9 ) TEST, R-GAIN, B-GAIN ( cross ) R-DC, G-DC, G-GAIN, YZ (PEAKING) ( control )

D408 - ( 15 ) SECAM BG
FartThis diode was standing there with the works! And this infa I have .
In the diagram, TV found STV2116A (PAL) - STV2112B (for SECAM L / L "). And I put 2118A - can not do ? [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]


And that's no figs, no good! [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]
Has made a STV2118A - STV2112B. And all - appeared in the color SECAM , and PAL with all DC

A STV2118A checked on another TV ?

By manuals in this chassis actually 12 . But I had to put instead of 16 only 18 .

In the same TV tried STV2118-T - and it is not suitable (micro charged with working landing gear ).
Indeed, such a defect (lack SECAM ) in the 2118A in my opinion unlikely .

He does not understand commands from the panel, the panel managed, can not configure the channels. Arrived broken , restored, start, Sfotopriemnika percent signal comes, but does not listen . In the service enter acc . can not. Who face , tell me !

A remote control can not own ? For chassis 12.1 console differs from all other chassis .

By the way, the logon process to service , too, is very different. Trick Contrast - " as for the rest of the chassis will not work here .

If there is a universal remote production Meliconi or TopTel, then 12.1 chassis code 235 .
For the rest of the chassis Beko code 317 .

The code for IAC unfortunately do not know, we are not found .

you do not know, apparently they differ ? That panel , which was brought to me clearly Chinese , with the package . I'm a Chinese . Day 3 brought back HI STAR with audio (B / G)
externally TV 1:1 , inside the first did not look , went trick with - KONR . and then this kitaychikom rules and everything is OK .

Remote looks very similar, only 12.1 for less than 3 buttons .
Usually Beco at the bottom of the remote has two buttons signed by the "Smart Controls", but for the chassis 12.1 of the buttons there .

Pictures - the first console to normal Beko , at the bottom to 12.1 .
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تاريخ التسجيل : 16/06/2010

مُساهمةموضوع: رد: أعطال وصيانة تليفزيون-Repair-TV-LG   الأربعاء سبتمبر 22, 2010 10:40 pm

TX 6BZ190- 06 Chassis 12.1
How to install SECAM and enter the settings ?
Percent ST6387B1/FIO
STV2116A-2D is replaced by the STV2118A. Remote not .

regulations it section , would know where to find the answer to your question

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عدد المساهمات : 2369
تاريخ التسجيل : 16/06/2010
العمر : 56

مُساهمةموضوع: رد: أعطال وصيانة تليفزيون-Repair-TV-LG   السبت يوليو 09, 2011 12:50 am

GoldStar CB-14A86X
Do not turn off the voltage control inclusion of sub-band VHF-H
Constantly fed the control voltage at the output channel selector
"VHF-H". On the processor (LG8534-09B / ST9291J4B1/EEF)) on this pin
(where the output, or "OK" or "Cut off drain," but not
completely off) - about 12 pounds.
Solution (and can be easier):
[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

_________________

الرجوع الى أعلى الصفحة اذهب الى الأسفل
أشرف عثمان
المدير العام
المدير العام


عدد المساهمات : 2369
تاريخ التسجيل : 16/06/2010
العمر : 56

مُساهمةموضوع: رد: أعطال وصيانة تليفزيون-Repair-TV-LG   السبت يوليو 09, 2011 12:53 am



Goldstar CF-20E20B sh.MC-41B
Problem: no sound in the modes of TV / AV. When otpaivanii [3pin] GS8434-16A
appeared sound. According to the secrets of repairing checked the Q08, but he
was unharmed. Appeared in the cliff C08 - 680pf.



GoldStar CF-20D60B ch. MC-41B
The predominance of green, not blue. The reason - loss of the condenser to the
inside of the contour in the-Y. Excluded capacitors in L504 and L502 (VE16A).
Installed external capacitors 82pf.

LG CK20F84 aka BEKO ch.
12.4 or 12.5

TV works fine 3 minutes, then begins to appear Loch. The screen becomes white
completely with olive, check your PC is not what is not given, tossed a pipe,
and video amplifier TDA6107, a video percent NN5198, firmware also does not
help, get back to the computer, picked up all the details, well, all the normal
call, tracked the passage of video signal, It turned out that the resistor 709,
a 220 ohm terminated after a replacement telly works fine.



_________________

الرجوع الى أعلى الصفحة اذهب الى الأسفل
أشرف عثمان
المدير العام
المدير العام


عدد المساهمات : 2369
تاريخ التسجيل : 16/06/2010
العمر : 56

مُساهمةموضوع: رد: أعطال وصيانة تليفزيون-Repair-TV-LG   السبت يوليو 09, 2011 12:54 am





LG CT-14F65M Chassis:
MC-049B.

Instead of of the failed VCT49XYF PZ C7 with a
sticker set BB2.2/HS-2 VCT4921I PZ F1 000 OICTMMN 017C (V6.60) When installing
a new processor VCT4921I PZ F1 000 OICTMMN 017C (V6.60) identified the
following properties: a memory chip without TV remote control is included
listens but does not set any one of the programs (although the station is a
stop on), raster dark no light. While this is vysvetka display OSD, remote
listen, menu is.
When you install a clean 24C16 percent initializes itself, but requires
additional setup to service mode. However, without additional configuration,
the English menu, you can configure the station and the other parameters.
Through the service can be completely reconstructed by the original value as
you would on an old processor VCT49XYF PZ C7.
Log in Service: Hold "MENU" key on your keyboard, press and hold
"MENU" on remote. Within 5-10 seconds, holding the service menu
appears.
To save the new values, press the "OK".
Service standard and does not cause difficulties.
SERVICE MENU
SERVICE 1
SERVICE 2
SERVICE 3
SERVICE 4
OPTION January 16
OPTION 2132
OPTION 3164
OPTION 4000
OPTION 5 96
50 0 4:3 V6.60
Adjusting the screen SCREEN without failure in regulation.
[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]When installing a
memory chip from the processor VCT49XYF PZ C7 service changes are needed. (Firmware
are the same).

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]
VCT4921I-PZ-F1 000.rar



LG 21FG2CG Ch. MC-059C.
LG 046N 9R
24C16
LV1116N
STV9326
TDA8145
D2689
BSC 24-3366J
TAEA-G011D
He came in for repair - no sound and correct geometry. Sound - to find the
service SND MODE establish an AV ST. In the correction changed the upper diode
D406, Tda8145 and choke L401-replaced by DRT1. Including the beautiful picture
and sound, but after 1.5-2 minutes off in the standby mode. Checked ESR
capacitors and power supply, CD and CP + B = 110.7 in nothing suspicious found.
Geometry correction disabled, working and not disabled. In this
apparatus used two defense "OCP" and "V-NECK", X-RAY on
Q405 is not wired. FR resistor 403 was 2.2 ohms instead of
1.2 ohms. After replacing OK.




LG-RT20CC25M Ch.MC-049B
Non-switch programs, but the program itself is not changed, the sound is.
Careful propayka inside the tuner did not help. Instead of the
"native" tuner TAEW-G005D set TAEM-G001D, and then TV work properly.






LG-21FS6RG Ch.MC-049
Ingredients: LG048N 9R, 24S16, LV1116, LA7958, TDA8145.
No correction and increased horizontal size. At the output of pulses is
TDA8145, L401 worker diode RU4 call 138 in both directions. After the
replacement is no clear vertical lines. S406 to 0.027 ragged. After replacing
the TV work properly.




GoldStar CF-21E20B
chassis MC-41B

Faults:
1. Setting slips, canals, "frustrated"
2. Display is not working
3. "Remote bad switch channels"
Remedy:
1. Soldered tuner (with internal ground) - is not working.
Reason circuit L508 (rather condenser) - put the 75pf
2. Checked the harness all living things. Vypayal LED cleared conclusions, set
back - works.
3. Useful in remote wiped with alcohol - everything is fine. But the telly does
not react. Window sensor dust clogged with soot - cleaned. Now everything is
OK.





_________________

الرجوع الى أعلى الصفحة اذهب الى الأسفل
أشرف عثمان
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المدير العام


عدد المساهمات : 2369
تاريخ التسجيل : 16/06/2010
العمر : 56

مُساهمةموضوع: رد: أعطال وصيانة تليفزيون-Repair-TV-LG   السبت يوليو 09, 2011 12:55 am



LG CF-21F39 chassis
MC-994A

lights and LED prituhaet supply, + 30-70V pulses at a frequency okolo1gts
replacement of electrolytes in the piping STRF6707 solved the problem.



LG, MC-049 chassis
Problem: running from several minutes to tens of minutes, then off. Wed,
without a transition in the DR (the emission of the LEDs), control in the DR
can not be translated. On the fur. effects (tapping, peregibaniya board) with
the launch Wed responds poorly vague. Check the pit L503 1.8V per cent, up to
1.5V after the drawdown at the foot of the throttle percent., Replace the
defective inductance 10 mH.



LG-CF-20C60 chassis MC-64A
Video - TDA8362B S7
Vertical - LA7833
Sound - TDA2006
Tuner - 113-118J TUGZ1-C07C
TV / AV - LA7222
Micom - LG8634-16B GMS84512-TA013
Memory - AT24C02PC
FBT - 154-375H
Description of the chassis here.

He entered with complaints that the screen is filled with greenery.
Were broken TDA8362B S7, Q513, D902 all fell ill due to fire intermittently
FBT.
After replacing all the faulty elements, a fault - the lack of color in any of
the systems ..
Check the Color c microcontroller, it is planted, planted his TDA8362B (I bet
it was her). Planting in the event that there is no identification color.
Rechecked everything, strobe, changed the decoder with a delay line, long
speculated that the nafig while not connected to the TV dvd-player and saw that
the color went with the bass.
Then turned the bulldozer and found the method.
The reason was in Q508, although seemingly no connection with recognizing it
does not.

Can anyone come in handy, I personally met for the first time such a miracle
sent OLEG



LG 21F80K ch. MC-019A
No overall synchronization.
Connect the external source (dvd), then the same thing. Meals are normal. Check
the harness of the processor - the norm. A defect in TDA9381PS/N2/3/0533
The efficiency of the TV was on the next vostonovlena dorobotki scheme:
1) TDA9381PS/N2/3/0533 ---- 42 (cvbs y / in) pin to ground through a resistor
5.6 Kom.
2) 40 (cvbs in) the scheme is on the capacitor 538 (0,47 m) So he put a
parallel capacitance 100mkf/16v.
It works!



LG RT-21FB20RQ. ch: MC-019A
Replacement TDKS 6174V-6006E.
Instead of native TDKSa set BSC25-2074S. Peresverlivat holes do not need to
rewire mismatched stem ridges; to supply personnel + - 14c extra winding reel 2
sections of 3 turns, it is important to guess the phasing (if not phase
rectifiers + - 2 volts). AFC connected to the terminal filament.

LG CF-21D70 chassis MC-64
When you switch to operating mode after a couple of seconds there is clatter.
First, quite often (2-3 times per sec.) Then less and less, until after 20
seconds, does not disappear completely. Raster at the clatter, manages to light
up and see that disrupts synchronization (horizontal scanning frequency is
doubled) and right at the top before the next synchronization stall smoothly
climbs pincushion distortion. After 20 seconds the clatter stops getting better
cushion and TV works fine, just HOT very hot. If you let it off for 5 minutes
and turn right, then the defect does not appear if you include minutes after 5
minutes, that is. It was found leaking D408. (Squander the power supply T-402
and created a second pulse (to be seen on ostsilogramme. How ????...)) Defect
easy. In DR the collector voltage of Q401 is less than 118 put (I was 40B).


[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]


Goldstar CL-21N52X ch.PC-81B
No DK, the menu switches only BG-L, put in service OPT1-21, get out of it again
- BG-L. Defective 24C16, after its replacement and installation OPT1-21 is a
DK, and sound normal.





LG chassis MC-64A
Video - TDA8362B S7
Vertical - LA7833
Sound - TDA2006
Tuner - 113-118J TUGZ1-C07C
TV / AV - LA7222
Micom - LG8634-16B GMS84512-TA013
Memory - AT24C02PC
FBT - 154-375H

Instantly heats up the transistor output line. On the raster in vkrhnem left
when you turn on a slight distortion, which disappears after a few seconds.
Problem was solved by replacing S422 [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]



LG chassis MC049
STRW6754
problem, blinking LED does not turn on, the output voltage power supply is also
changing, sometimes myself included, sometimes just do not have run
checked all the piping of all normal BP
Bank of the network longer 300V and 245V in the network
after replacing the STR deffekt eliminated.


_________________

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