أعطال وصيانة تليفزيون-Repair-TV-GRUNDIG

L567 H-Ampl is probably the horizontal coil over the line
transformer. Lettering was hard to tell since built over, and dusty. The
controls are grouped together and was not as lush as in many machine
chassis, but still. Now just missing the automatic switch-on with AV
network contact. I had time NEN old 70's with 4 or 5xxx Grundig CUC and
my chassis but also turned the same when switching to AV through, if ne
game console was my turn.

The automatic switching by NEN bypass could force the wiper switch. Now he turns on when power is applied. So far so good.

The following problem still exists: one image is shifted cm to the
left and I do not know where to find the pot for horizontal shifting.
Can someone tell me where on the chassis is located?

Repair: Super Grundig

Error protection circuit responds - Type: SuperColor8446
Device Type: CRT TV

Defect: protection circuit is activated

Manufacturer: Grundig

Device Type: Super Color 8446

Chassis: GSC 600

Measuring instruments: multimeter, oscilloscope

Hello,

I would like to have a Grundig TV boxes chassis bring back to life.

The device was about 10 years ago still functioning stored dry.

Now speaks to the protection circuit after switching.

Green LED freely as on the control module.

Cascade was tentatively unsoldered times.

Modules to run, return, East / West and control module have been replaced.

All with the same result.

A switch on the transformer with drawn lines Hinlaufthyristor destroyed 17088th

Then, the protection circuit is no more and all power LED's (except Hinlauf) have shined.

The same happens with drawn Hinlaufbaustein.

On the Hinlaufbaustein all (FKP) capacitors were tested to capacity.

Thyristor was replaced.

The modules were tested for cold solder joints.

Since I have a video game for the modular bay, I would like to get the unit running again as.

Does anyone have tips?

Chasis resolder completely, then check voltages.

The Kommutierungsspulen for continuity, rotted away any connecting wires.

You have an Oscilloscope and isolating transformer?

If you it's all about the video game, that there are possibly as a Flash game for the web browser?

Chassis and modules have been checked for cold solder joints (visual inspection) and nachgelötet suspects.

The operating voltages from the power supply module are ok and not verbrummt.

Kommutierungsspulen with the H / V deflection coils are meant?

These have no interruption.

Ozzi control and isolation transformer are available.

When you press the diagnosis button speaks with push button 3, the
protective circuit is not on, but the R92 line transformer is
overloaded.

On the secondary side of the ZT is no short circuit to ground before.

It's not just to play the video game can.

But since I nunmal Both have what appears to be more rare, I would be very happy if I get the TV repaired.

Unfortunately, I have the exact sequence of operations of a thyristor power amplifier line against diagram not yet understood.

Kommutierungsspulen: the energy transfer between the thyristor, the line transformer and the deflection

- L93 on chassis

- L1313 module to return

- L1408 + L1409 on Hinlaufmodul

Of course, the H deflection to be intact.

Quote:

When
you press the diagnosis button speaks with push button 3, the
protective circuit is not on, but the R92 line transformer is
overloaded.

On the secondary side of the ZT is no short circuit to ground before.

! ** Diagnostetaster should be operated only at a reduced supply of 150-180V AC **!

Overloaded R92 congestion means the winding of the pins on ZTR f, d,
g, o, usually by just fine with connections / in their derived products
for supply voltages.

-> Vertikalmdul: pin from ZTR is generated o + D and the supply
of the IC TDA2562. May cause defective IC. R1118 to V-Mod high solder a
test.

-> RGB Module: C + The module pin out in the EW ZTR f generated.
OW has indeed changed, but has C + RGB module in a short / fine
conclusion?

Please try again with the ohmmeter.

Please only use with diagnostic probes at 150-180V power supply - you've got the resources.

The diagnostic switch I had, of course, as described in the Service Manual, tested at reduced voltage to 180V.

And I had found that one key from the outset had no passage more.

Tip of the return module and short circuit was worth gold.

Elko C1118 had 0 ohms.

Just funny that I have previously when measuring at the base ZTR not noticed. [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

The sound is still something verbrummt, but that will be deaf to electrolytic capacitors in the tone block.

If you replace all the electrolytic capacitors in the unit as a precaution?

Or there are those manufactured by companies that are safe even after 30 years?

Thank you both for your help!

Quote:

Unfortunately, I have the exact sequence of operations of a thyristor power amplifier line against diagram not yet understood.

Since you've already repaired the Grundig, is it really no longer necessary, but maybe it's still interested after all:

can someone tell me where I can see a thyristor-line output stage on a plan?

I've already read it, but not yet seen, I'm interested in simply building

Then look for the schematic of an older TV.

In "Pandora chassis" of the Grundig desired stage is built. One of these is called Super Color TV 8685th

Quote:

68Andy wrote on 21 Oct 2010 19:08:

where I can see a thyristor-line output stage on a plan?

In olle Maxe Grundig Super Color e.g. [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

And RCA has been filed in his application reports carefully to see how this works. The fact wanted to sell it fast thyristors.

Thank you for your answers.

What has thrown the Thyristorendstufe ultimately out of the race?

Presumably, price, place and more powerful transistors.

DL2JAS

Was the culmination of Thyristorei Nordmende SK2 chassis.

The power supply was controlled by a thyristor branch.

I like the plan can scan, you get dizzy with the sight of security.

Thyristorendstufen were always associated with many coils. A
protection circuit was also always on hand, as if once a thyristor then
forwards ....

Was probably the only manufacturer Telefunken, who has not tried
this method. They had already built the early BU208, and it was good.

I'm ever the plan from Grundig (GSC700) downloaded

the SK2 I also like to watch me on.

Was there even accidents with this amp, what was so dangerous, at the thyristor?

I'm still a beginner so I ask so much and I know from thyristors ignition or Stroboschaltungen.

From Peter Zastrow, television technology, 1977

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

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

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

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

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]
From Peter Zastrow, television technology, 1977 (last page)

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

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة] Thank Mic4

For some reason I get no pictures on the [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

It's a page on the top left shows where: Electronics Forum spare parts ....

Which browser and which operating system you use?

For me there is no problem with iceweasel as a browser on Linux. Win
I can not currently offer. I use XP, otherwise very happy, so I had no
problems here in the forum. If, contrary to expectations on the software
here are in the forum, please make quick message, the admin Baldur
usually resolves problems very soon here in the forum software.

DL2JAS

Repair: Vienna Grundig

Error: no sound no picture - Type: Vienna

Device Type: CRT TV

Defect: no picture no sound

Manufacturer: Grundig

Device type: Vienna

Chassis: CUC 1836

Measuring instruments: multimeter

Hello,

I have tried for some time, an old Grudig Vienna to revive.

The device had a defective T53001, then caused east / west error by a defective resistor R53003 (if I'm not as mad now).

This works well so far back.

Blue image is seen.

However, not more. OSD is just white and totally distorted.

Picture and sound are missing, also the noise is not normal to see
if the blue screen is not there yet, but a gray mud image * g, which I
can not describe.

If necessary I could also take pictures.

The device responds normally to the remote.

The assumption was not correct digi-box, an exchange has brought no change.

If anyone has an idea I would be very grateful.

Ok, well since my error description is too bad, here are some pictures.

With the request for help ...

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

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذا الرابط]

Repairs: Sydney Grundig

Error is no longer appropriate - Type: SydneySE7241

Device Type: CRT TV

Defect: it is no longer at

Manufacturer: Grundig

Device type: Sydney SE 7241

Chassis: CUC 1838

Measuring instruments: multimeter

Hello dear community-electronics,

Sydney my Grundig SE 7241 (CUC1838) will not do more.

to create the operating voltage, the high voltage discharges on the
focussierunsboard after about 2 seconds on the component-FS64001 (you
can see in a darkened room), then nothing happens more. Front-led shows
orange [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

Who can help? Many thanks in advance.

C64001 and C64002 (1.5 nF/6000V) are usually the culprit

oh,

thanks for the tip.

'm already on order ...

Kondis but never imagined the two times in the local trade fetched, built-in * * and he immernochschwitz funzt again! [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

one bissl blurred it seems to me now. net can remember that the first was the case. [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

is because there may still enact what? in the TV menu setting brings the "sharpness" at least not much.

Some things are still completely analogous [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

Focus on rotary knob once.

PS: Your shift key is broke down, you write only in lowercase.

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