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 أعطال وصيانة تليفزيون-Repair-TV-SAMSUNG

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


of standby. Guilty of this as a rule or memory failure (treated with writing in
or the lack of human clock (at the time of inclusion can be checked on an
Otherwise defective IC personnel will lead to failure of the TDA 8844

SAMSUNG ch.SCT11B
CPU - SZM-137M3. I was very surprised, "winning" such a cause: The
device is working properly for some time (a certain interval was not), suddenly
spontaneously goes into video mode, ceases to operate a local keyboard,
sometimes she comes "line" of sound, sometimes just disappear and the
screen and sound. Replacing the CPU did not change anything, install a working
memory - too. Only disconnecting the output of a sensor information given
result. The receiver has been successfully replaced.
I had never seen anything like this chassis!]

Samsung CW-29A8VHE ch.KS3A - 100Hz.
SDA555XFL A14
VDP3140D
MSP3411G

Settings for programs not sohranchyutsya, the sound is, to have SCART video. At
the cathode 200V, good picture tube. No picture and OSD.
The culprit turned out to be C407 - 680pF, with the collector HOT - breakdown.
Because of this, burnt C408 - 4,7 nF and R433 - 5K6/2W. Because there was no
etogo SIOH to pin 13 VDP.

SAMSUNG model CK 3338, 3373, 5073, 5085, 5339, 5373.
Information on replacing the video processor on M52309SP M52777SP.
1. Remove R201 and install S-plus 22mkf to 9 feet.
2. Remove R207.
3. Remove R209, replace it with a 2.7 kOhm / 0.125 (pick up with the size of
the picture tube).

Samsung CS-1448 ch.KS1A.

Fault manifested itself in a chaotic failure picture (screen is dark, the sound
is present). Check supply rate, video amplifier locked on 180 volts. C505 was
faulty on-board tube to the conclusion 5mu TDA6107.

TV Samsung (Chinese fake)

composition: LC863322B (53W3 4F05) + LA76810A + LA7642 (Sesam) + AN (CS) 5265
(two VLF) + 24S08.
Defect - the image is dark and unnatural (in Secam) - very similar to as if
there is no brightness component (like breaking a delay line in the
"old" TV - leaning to the negative). I encountered a similar earlier
case of failure decoder Secam LA7642N, but here in the translation of Pal -
image disappears. View the oscilloscope: the shawl Secam decoder all signals
arrive, podkidka decoder (and suddenly it) - did not help. When you install a
clean (FF) of memory in the menu (standard) disappeared Secam, but with all the
Pal was OK - when you switch to the standard for Secam - channels are OK, but,
naturally, without color. There was a VERY BIG suspected rally driver, but when
entering the service (in the remote drop, there is a hidden button - triple
clicking on one of them and we ADJUST MENU) menu sections responsible for any
adjustments except for the geometry and something to color could not be opened
(to switch the mute button MUTE)!!! Native labor was not the firmware, took the
chassis of the modification: LC863322B (5Z51 3KDB) + LA76818A + LA7642 (Sesam)
+ AN5265 (a ULF) - with a working TV.
After installing this firmware Stitched new IP TV memory involved, but the
picture was flashing at a frequency of about 1 Hz and there was something extra
markups for installation geometry. The service but FULL 9 Section MENU: home
video enabled (flashing with markings disappeared), the options tuner option,
the number of inputs and sound! Then I decided to install the native memory (in
standby mode without disconnecting from the network TV) and rewrite it with the
geometry of options - everything worked and there were even other sections of
the menu. Wrote off options for all sections, and then ordered them manually in
the service of a new IP. As it turned out, knowing the options can be done and
this is with a clean (FF) memory, which was done in the second TV.
Interestingly, when you install the old memory and network TV is turned off the
key immediately the defect is repeated, that says it is about hardware (not
software), memory corruption, because options have been spelled out 1-1, and
the defect disappeared while trying to switch to another type of video
processor (not LA76810A), but in this case "Morgan" image, it is
probably damaged the cell. Firmware and a list of menu options are included.

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة] Options to LC863332B.ra

SAMSUNG CK-5081
After a few seconds of beginning to twitch and visible image which is
pomehi.Pri metering voltage TDA8362 revealed the fact that during the beginning
of twitch tension was reduced images from 8 to 7.1 volts. The cause was Q806
2SC2331 although the device as prozvanivatsya serviceable. After the replacement
power was restored and the unit will function normally.

SAMSUNG CS-5038Z

He came in for repair with the victim and non-native TDKS. It turned out that
the owners took him to repair about 2 years, as they say: two shows a week, and
then goes out. Start with a trance, put home, checking to run shows at the same
time izo.nemnogo stretched horizontally. The voltage from the power supply is
normal in the choice of 123.5 S402, 403 normralnoy gorizontali.dalee sought
through a 1, 5:00 manifest defect: missing the white balance was the cause of
ABL Conder S405 changing everything is OK. The next day, give the customer
brings in 4 days back, that the same reason. Split open TDKS intact, broken
R2KN, mean BP. Start with small things: choke L803, S851 - 22 uF, again turn to
run, just short notice twitching in the horizontal, repeat the same defect is
observed after this very rarely including Week 2 times.
Blame was SMR40000.

SAMSUNG CK-5339TR, ch. SCT11D

After the fault in BP clear: After switching to TV network volume beyond, is
irrelevant to the screen units 170-240. The sound disappears periodically.
Adjust the volume and values


عدل سابقا من قبل أشرف عثمان في السبت يوليو 09, 2011 7:03 pm عدل 4 مرات
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عضو جديد
عضو جديد


المهنة : فنى صيانة
الأعلام :
عدد المساهمات : 3
تاريخ التسجيل : 22/05/2011
العمر : 47

مُساهمةموضوع: سامسونج 14 بوصة   السبت يوليو 09, 2011 8:01 am

[b
]ماهى الاعطال الشائعة فى جهاز السامسونج 14 بوصة
شاسية رقم C5333ES
خاصة بدائرة الباور موجود 300فولت على مكثف الباور وغيرت
ال
5Q0765RTاكتر من مرة وجدت ا لديوت المغزى DZ803 شوت غيرتة وباقى المقاومات سليمة 100%
داخل الى الفيتوكبلر على طرفية16 فولت وخارج على احدالطرفين 1.6 فولت من طرف والاخر المؤدى الى ترنزوستور KA431LZ
اللى مش لاقى لة بديل ومحتاج بديلة الصينى برقم يسهل العثور عليه لانى اشك فيه لان قياسه مش عارفة ولكن مافيهوش اى شوط وليس لة بيز ورقمة المطبوع IC803 بصراحة الزبون مستعجل وانا فى مشكلة بسبب الجهاز ده يريت يرد على اهل الخبرة
ومشكوووووووووووووووووووور جزيلا[/b] affraid
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-SAMSUNG   السبت يوليو 09, 2011 6:09 pm

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذا الرابط] كتب:
[b
]ماهى الاعطال الشائعة فى جهاز السامسونج 14 بوصة
شاسية رقم C5333ES
خاصة بدائرة الباور موجود 300فولت على مكثف الباور وغيرت
ال
5Q0765RTاكتر من مرة وجدت ا لديوت المغزى DZ803 شوت غيرتة وباقى المقاومات سليمة 100%
داخل الى الفيتوكبلر على طرفية16 فولت وخارج على احدالطرفين 1.6 فولت من طرف والاخر المؤدى الى ترنزوستور KA431LZ
اللى مش لاقى لة بديل ومحتاج بديلة الصينى برقم يسهل العثور عليه لانى اشك فيه لان قياسه مش عارفة ولكن مافيهوش اى شوط وليس لة بيز ورقمة المطبوع IC803 بصراحة الزبون مستعجل وانا فى مشكلة بسبب الجهاز ده يريت يرد على اهل الخبرة
ومشكوووووووووووووووووووور جزيلا[/b] affraid

هذا ليس ترانزستور

KA431LZ

5Q0765

وهذه الأرقام موجودة تباع فى السوق

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]
يتم تغيير القطع المشارة عليها بالأسهم وتغيير التالف منها ومراجعة دائرة البور بعناية وتغيير التالف

_________________

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-SAMSUNG   السبت يوليو 09, 2011 7:12 pm


Scheme of the apparatus
SAMSUNG CW-29A8VHE chassis KS3A and the general
appearance


SAMSUNG CW-29A8VHE chassis KS3A - general view

After a manual switch
LED flashes a few times and everything. Silence on what does not react.
Suffered a major cost to your desktop. Rations, continuity, inspection elements
- the norm. Broke the chain + B = 130V removing an additional multiplier (in
the diagram J410)

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]
Jack
in the chain + B - J410

C815 hooked up in parallel lamp 40Vat. After a manual switch LED flashes a few
times and everything. But all of the primary voltages are normal with + B =
133V. The lamp is lit.

In razbrossannom as connected to all the picture tubes and other boards with a
lamp and recovered 40Vat J410.
Inclusion. The lamp is lit 40Vat. The inclusion of a remote control. TV
murlyknul, high buzzing sound and picture and normal.
40Vat bite lamp, collect all the housing.
Inclusion. LED flashes a few times and everything.
No lower-case pulses.
Again, the main board moved to the desktop. Soldered with a magnifying glass
all the cards in the quarter FBT. Soldered all the items on the radiators.



_________________



عدل سابقا من قبل أشرف عثمان في السبت يوليو 09, 2011 8:01 pm عدل 1 مرات
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عدد المساهمات : 2369
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مُساهمةموضوع: رد: أعطال وصيانة تليفزيون-Repair-TV-SAMSUNG   السبت يوليو 09, 2011 7:19 pm



The main board SAMSUNG CW-29A8VHE chassis KS3A.
Top right corner - FBT.
Suspended wires - OEM (sawn track and replaced with wire)

Collecting all the housing.
TV murlyknul, high buzzing sound and picture and normal.
For a week works perfectly.
Of course, this is not news to Stakhanovites. Where statics, dynamics at the
control points, where the change of the firmware and reset to zero?.
I confess, out of luck. Sometimes it happens.


Samsung CS-21K2Q (Flat). Percent. TDA9381.
After the lightning. In the diagnosis fee is found beaten diode (130 V). TV to
start, but the screen is kind of a pale rainbow with LOHami. It looks like
bodies. long been dropped, but still have twisted the accelerating and focusing
completely absent. On examination fee can be seen a good track lightning in the
gap in power supply. In general, a terrible thing. The sound is, the channels
are switched. First impression - a faulty picture tube. Not lazy, connected to
the operating cost - the same thing. Changed from a working memory TV - the
same thing. Two days of shovel board, re-checked everything you can (all
semiconductors) - no result, the whole. Versions are no longer there, but I
remembered from old times: on Soviet TV saw a similar picture, and it is
connected to the frame was interlaced. But then stupidly changed the personnel
of the block and head out. As a "foul last hope" and changed the
personnel LA7845 - Oh, Miracle! - Went to a picture! And OK! I suspect that not
only this frame can be such a thing.


Samsung ch.P64SMH
Power supply line scan for inclusion in the standard - 124v, then 2 minutes
begins to drop to 110V in steps during the 10-minute. Break the entire power
supply was faulty SDH104.

Samsung
CS2038R chassis KS1A.

Unusual defect. UOC: TDA9381PS/N2/3I0753 SPM-802EEN2. When
you enable the network will start in TV at once, RR as evidenced by the
extinction of green LEDs. There is a sound, no screen, no light heater, there
is no high voltage, although the initial burst of high, when you switch was. In
this case, when you switch, may be involved and some time to work on. The
picture at the same time is normal, no complaints. Turning off the screen,
caused by malfunction occurs abruptly. In this stops the run on the pulse of
music. ie, there is a blocking UOC. Identify the malfunction was removing the
card after the stress on the legs UOC. It turns out during the failure of the
processor by 34 foot H-SYNK appears constant voltage +3,3 v. In any rezhimazh
of TV on this pin is almost no stress, well, except that the pulses of line
scanning. Absolutely clear that this is a processor fail, or stress comes from
outside, blocking the processor. It is known that, at vanishing impulses UOC in
lowercase KS1A to 34 feet processor continues to operate with a phase shift
lines. Indeed disabling CR404S 680pf 2KV *, TV began to work without
overheating protection. Replacement of the condenser to 470pf 2KV * key
problems solved problem.
Perhaps this info will help when searching for similar problems. [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

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

_________________



عدل سابقا من قبل أشرف عثمان في السبت يوليو 09, 2011 8:02 pm عدل 1 مرات
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-SAMSUNG   السبت يوليو 09, 2011 7:25 pm



Samsung CS-21AOWTQ
chassis KS2A.
Ingredients: KA3S1265R, AA26-00107C, LA7845, VDP3120B C3, MSP3400D C5,
TCLS3101PD16A, SDA5555 A034 2244.A14 9R F SIM806MA3 (2001.04.16.) A51DC, D5703,
FUH-29A001B (S), STV5109,

The inclusion of RR The red LED blinks 5 times and goes out. As speakers noise.
No high voltage. On the remote control responds by blinking LED indicates
ochem, in 125. Trigger pulse H out c out 50 feet VDP3120B C3 and reach a base
D5703. Fail D5703. Replacement. Immediately went to the sound when you turn on
the diode as 5 times flashing. The pitfalls of not running more than a year.
Fault encountered more than once.

Samsung sh.KS1A
Problem: No picture, the line OX. In continuity with a multimeter 44 ohms
between B and cathode NEATER. Managed to burn through a focus on scale seems to
have been run between elektrodami.Na 2dnya already be working fine.



Samsung CS-21Z47ZGQ Ch.KSBA
A narrow horizontal strip. IC301 LA78045 PIN 2-4 21Om call, R413 breakage,
DZ305-ks.
After replacement of radio is OK. Gave. After 10days, "the same
thing." In the presence of the client include - a beautiful picture, 10
minutes volvulus appears and disappears the upper part of the image, the color
is. Culprit D303 1N4004. After replacing the efficient work of the tv.
Samsung CS-21S4WR ch. KS1A
No sound and small size vertically. Dn, voltages and sweep all chetko.Vhod in
service: STAND-BY> DISPLAY> MENU> MUTE> POWER ON.
In translating the TV service mode on the screen displayed the message
"SERVICE (FACTORY)". In this mode options ADJUST, OPTION, and Reset.
The choice of parameters in the options by using the buttons "VOLUME"
(Up or Down). In the OPTION parameter value "AUDIO" in-MONO-must
change to STEREO. In the options ADJUST change the VSL> VS> VA,
respectively, linearity, alignment and vertical size, Power OFF.
It's OK.


Samsung CS-29Z47HSQ (SLIM, 100Hz)
The composition of SMP 6773G, 24C16A, CXA2165Q
He came in for repair after grozy.Maly size vertically and horizontally, pillow
offset raster, OSD has
half the symbols from the remote and arabskie.Vklyuchaetsya klaviatury.Vypayal
24C16A, set in progeria cursed - not seeing new 24C16A.Zapisal 24C16A in DIP
package, sealed and 4 bridges washed panelku.Tschatelno FEATURE-BOX and MAIN
platu.Vklyuchenie - all OK.


Samsung CK-6202SXR ch.S51
Ingredients: SAA5291PS/135, 24C04, TDA8844.
Vklyuchaetsya.Bp not working well, all output voltages are normal. No PPE. W
"network bank" 470mkf blurt mastic, it "overrides" the
bridge at 8 FOOT 5, 7, 24S04 and power relays. Necessary to remove the mastic,
vypayat 24S04 and write "FF". 24S04 solder, to include TV, select the
language etc. Go to the service: in standby mode press the button on the remote
turns - display, menu, mute, power adjustments to correct the geometry and the
OPTION to choose TDA8844 and TXT.

Samsung CS-21Z45ZGQ ch.KSBA
TV turns on, have all output voltages, and line personnel working on the BV 175
B, and accelerating the PC 0V.Otpaivayu leg accelerating - food to eat. That
means accelerating the heat and short circuit. Unsolder the ground with a
pitch, then 2 turns well insulated wire wound on a core of FBT and payaem
through 1Om to glow. Including an image is adjusted the focus and accelerating.


Samsung CK-7202WTR Chassis SCT-57A-01
Composition [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذا الرابط]
Heats up and burns HOT (D1887), the cause of faults in the throttle L403.


Samsung CS-29Z47HSQ chassis S65A
Included, there is an accelerating zvuk.Rastr temnyy.Dobavlyayu - brightens
with LOH.Kryaknula Krenke (KIA7812) on PK.Pitaet clause.
On the other-such as otgorel Wrotham on OSke (red) with strochnoy.Iz of this,
when you turn left to the defense.


Samsung CK-5083ZR chassis P69SA1
There was a problem similar to the activation of defense Tsykanov mains
transformer with a frequency of 2-3Hz. By removing all loads fastened the lamp
60 watts., The output rectifier 125 W. lamp blink at the same frequency as in the
duty room and also in the running. In PSU were replaced by STR-S6707, Zener,
all the electrolytes. Checked all the resistors and diodes on par for leaks -
all normal. He took a known good diode and in turn became "pop" for
each diode binding STR-S6707, - was found defective, which is called as a whole
and had no leaks - D811.


Samsung CK-2085VR chassis S15A
From the words of the customer first switches off, was not included, could
sometimes vklyuchitsya.Proverka identified immediately, the power supply is
dead. Replaced on KA3S0680RF KA3S0680R installing mica-no movement-output power
supply as it was, the zeros. PWM replaced again, the same thing (like the
entire party "rotten"). Replaced the electrolyte 33mF/50v, ZD808,
ZD809, D809. Checked C805, C806 and other substitute. At the exit again on
zero. Connected generottor TV wound up with a twist. Phoned the
sellers-KA3S0680RF no one else will be next week, but wait a week for
elementary block? When I looked at their holdings PWM caught the eye of a few pieces
KA3S0765RF.Sravnil datasheet, a replacement is possible, functional layout,
pinovka match, the variation of parameters is not critical. Set KA3S0765RF
instead KA3S0680RF without changing circuit. TV to start, worked for two hours
and issued to the client. Voltage on the power supply output: +123,8 v and
+12,8 v.
PWM mode:
1. +259 V (+300 v)
2. Ground
3. +19,8 V
4. +0,6 V
5. +6,6 V
Heating radiator PWM is much lower.


_________________



عدل سابقا من قبل أشرف عثمان في السبت يوليو 09, 2011 8:04 pm عدل 1 مرات
الرجوع الى أعلى الصفحة اذهب الى الأسفل
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عدد المساهمات : 2369
تاريخ التسجيل : 16/06/2010
العمر : 56

مُساهمةموضوع: رد: أعطال وصيانة تليفزيون-Repair-TV-SAMSUNG   السبت يوليو 09, 2011 7:30 pm



Ingredients: PD-STR6750F; percent. TDA12025PQ/N1F80; eepr 24C16; vert.-LA78045;
FBT-FQH21A001. When you turn on the screen of a hindrance, for a couple of
minutes, right up to failure usilivaetsa synchronization. Line choke
nagrevaetsa with tarohteniem. P omeha goes all the video path and through the
video input! falls and the source signal. (it's everywhere) There is a
suspicion that the origin Musto line scan, since it is disabled no.
Ostsilogramma output from setevogo droselya but otklyuchenoi line to a sine
vseravno kakieto "needles". Secondary naprugi normal, instead of only
12c - 11.65 in. At the core of cracks not visible strochnika. Lita for the
secondary housing replacement nothing nidali.Bez source - not visible noise but
going to the menu background kakby by vertical lines creep chyut Oops! Somehow
the opposite was attached pictures!

The reason for this is commonplace. Network "bank" S800 680mkf \ 250V
them there for two S800 and S805 series.


Samsung CS-2185R Chassis KS1A
Interference in the form of knocking over the speakers.
Loss of S612 10mk50v on second leg TDA8943SF.


Samsung's BP on SMR40200C and HIS
If the burn line transistor to draw attention to the work of PD. Stress can be
normal, but very rarely
formed at the moment of its failure to work or dressing. If you do not replace
the chip at the same time BP and Conder 22uF/25V, transistor crashes after a
few days, there were cases with staff. Often, especially where SMR black.


Samsung CS-29M6SSQ chassis S61A
Came from punched HOT (J6920) for progorevshey OS.Pomenyal OS.Spalil 2pcs
J6920.
Put HD1750FX. Three days progona.Vydal.


Samsung CX6840W
Not run high. Line tr-sided overheating.
Replaced the trim strochnog tra-transistor capacitors S608, S613 and elektolity
(just in case), the resistor at 33 ohms. This restore performance line scan.


Samsung CK-3352AR ch. P68AM
Ingredients: CPU PCA84C640P, memory 24C02, video TDA8362B, KR KA2131, ULF
TDA1013A, BP SDH209B, CP D1711, transformer Wed FTK-14A004P.
TV does not turn on, LED turns off. Punched output transistor SR and burned
R826 0,47 1/2w. After replacing when you turn on from standby to operating mode
B + is reduced to 90 instead of 125 in. When checking Generottorom - the same
thing. During stress testing Wed pulse duration like normal, and the current
200 mA, and due to the variable component. If you disable the OS - the same
thing.
Conclusion: The defective TDKS FTK-14A004P. After replacing all the work.

Samsung
WS-32Z31HSQ chassis S62B

Ingredients: S62B SLIM
SDA5550M, 24WC16L, J6920, LA7845, TDA6111Q 3pcs
SSB: SDA5550M + CTV8237 + VSP9402A +24 HC1230 + CXA2165Q
+ B 130V, SCR TCPW3001PD131S (W)

Problem: when you switch the transistor burns out of line scanning J6920A.
Factory marriage, nedopayana leg C426.
"Normal" setting C426. J6920A replaced with 2SC5446, + replacement
D413

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

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عدل سابقا من قبل أشرف عثمان في السبت يوليو 09, 2011 8:06 pm عدل 1 مرات
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تاريخ التسجيل : 16/06/2010
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مُساهمةموضوع: رد: أعطال وصيانة تليفزيون-Repair-TV-SAMSUNG   السبت يوليو 09, 2011 7:32 pm

In addition to frequent break R2K and failure of the transistor in the row with
BP on TV, "a sweet couple," there are also cases of failure of
TDA6103Q. The reason is the same, just another manifestation of intermittent,
in seconds, leaving the block in the "dressing down". In this
performance the block can be stored for weeks and yet non-periodic short-term
razdergivanie (increase in size) picture, which appears every few hours, is not
suspicious. Set to change completely. Encountered in the framework of black
SMR, as well as on the "left" green.

Samsung CK-5081Z chassis P69SA1

The problem in this chassis with a transistor Q806 C2331 (food 8B) described on
the previous page. In my case it was difficult to identify the fault as TV may
work fine for a long time, and 8 volts disappeared for a split second (the
transistor broke off). After replacing all about.

The inclusion of FBT FUH29T002B instead of running lines creak painfully
familiar, and then restart again, and so constantly and heated HOT C5793, with
little hope of zamorochek experience immediately order a new TDKS came analogue
JF0101-83 020 solder in, turn on-line start and went high I rejoice, rubbing
his hands and again began to look off .. plotnee.I bring another similar S65A
with the launch of the same, but the high and run is heard but not heard in the
run kadrovoy.Okazalsya rez.R425 cliff on the 1st of Nutrition + 17v.na
STV9381.Blin, at first, then too there is no staff, I look and there 425rez
obryv.Vo .. I think got, relied on experience and on sluh.Stavlyu back home and
he TDKS rabotaet.Chto had started to sum up the experience of hearing and or
just my laziness len.Mozhet anyone help.

Samsung CS2038R chassis KS1A.
Addition to post Veonarda:
often die just CR405 4700X100V. Change in 4700H400V for guaranteed reliability.

According to the owners, through time from an hour to several hours after power
was lost and the sound appeared again only if your TV is de-energized (no DR)
and then on again. Almost all of the litas to the F-BOX (lyuminyavye barrels
SMT) the name of an increased ESR. The culprit turned out to 100mkFH16V
regulator 3.3V

Ingredients: (incomplete) LA7845 - personnel,
VFTD2-6B/235S-A2 tuner, VFT-6B/234S tuner PIP, FEATURE-BOX AA59-03446A,
composition: SDA5550M, T-NG2PAS-1005 05/08/12/5J / 11 CHECKSUM: EBE5, CXA2180Q,
VSP9402A B13, STV8237.
24C16L TDKS: FUH29T002A REV.0

NOT come with a punctured J6920. Set BU2527AX, soldered all the hot places
especially TMS, transistor geometry, the circuit in the base notes, checked in
the chain running capacitors, capacitors and collector of music. Turn on the
TV. TDKS from the sound of "buzzer", it seems that it TDKS ships,
while HOT is hot, but not punched. Check on the weekends diode rectifier
circuits showed no evidence of underestimation of resistance. In the circuit
was installed in the + 150W lamp, to avoid the breakdown of the Notes, if such
a tube TV is usually started up and the lamp illuminates, in this case, failure
was accompanied by a buzzer TDKS overload. Replacement TDKS did not get
anywhere. Even the OS removed for visual inspection. Disconnecting the
connector on the CRT 200 and a heater, also failed, TDKS still belonged to the
load. It was decided to turn off the load immediately after TDKS on circuits of
15 V,-15V, and 200 in. After switching off the circuit to the diode at 200 in
at VU there was a surge in high-CRT. Since connector on the picture tube
disconnected, it was concluded that failure rectifier and shunt capacitor. D410
replaced and removed the C419 (in many TV do not make it, and work is possible
without it). TV starts up again with a high on kinescope. Removed from the lamp
chain + B, and put back the jumper (jumper near the throttle, double). TV work
properly.
For reliable operation, instead of jumpers vpayki TMS and music, I usually put
the "nozzle" between the terminal TMS and a number of bus passes,
"the earth" (why the board there is obtained by the "loop"
of the tracks on the foil body TMS, incomprehensible whim of the manufacturer)
and, optionally, the output can be put HOT ferrite tube.
Most interesting is that checking a diode and a capacitor, they were working,
most likely the cause of the periodic piercing of the capacitor
"clay" shunt, which was replaced by me at a high voltage.
Such failures are rare and their diagnosis is difficult at times.

Probit diode D410 board next to F-BOX. As a result, the gate Q402 +4,4 v-it is
heated. + B in this case is equal to +211 v. If you break the chain between the
first and second cast on + B, removing the coil L809, the voltage at the first
literature is restored to normal values. The diode D410 has replaced the
voltage + B-normalized, restored the chain, launched a television. Broke
through Q402-gate-circuit, 5 ohms. Manufacturer installed BUZ73A. Recommended
replacement Transnistrian forum IRF632, for lack of a set IRF630-normal flight.
Further defect manifested itself, which warned the client loss of sound from
two minutes to a few tens of seconds. The sound is restored only after
disconnecting from the network, and to give the TV to cool at least a minute or
two. In this case the picture on many channels observed twitching (similar to
the disruption of the PLL when you connect your VCR to the TV import USTST),
especially noticeable in the OSD, but the image does not clot. Replacing C468
100mF/16v (derating effect on the break-up of vertical lines) on the board of
F-BOX with the image not corrected. Set Litas C410-100mF/16v, C434-220mF/16v on
board F-BOX (manufacturer does not install them) - the problem disappeared with
the sound, OSD and the image stopped twitching. Obviously the baseline
characteristics of other elements can not install the manufacturer C410, C434
and cut supplies to the production stage, but the deterioration of these
characteristics and the savings in production time gets out sideways during the
TV and eventually causes not only loss of sound, images and twitching and
treated the matter of installing the litas.
(Thanks, Respect and uvazhuha man, put the information on these Lytham on one
of the forums)
SAMSUNG ch. KS-1A

Problem: No sound with bass vyh.est, click on the remote MUTE (on the screen
"otkl.gromkost") then the sound is. It turns inversion MUTE.
Play around with the firmware, but can not deal tity of rooms.

In my case, after 4 legs unfold percent no sound came, and helped the 10 and 13
feet on the ground TDA8944. Thank you all.

Samsug ch. KS1A
Picture tube is closed, triggered ABB, the voltage at VU power 120V on the food
chain does not burn. After replacing TDKS deffekt eliminated at VU in 190.

Whitelist does not read so busy for half a day lost sound.
In, F-BOX when you turn on IC410 3.3 v per minute drops to 3 v and the sound of
caulk.
The plant does not set the S410 100X16. Put it all went.



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