REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Monday 11 March 2019

SONY KV-32S40 - KV-32S45 - KV-34SL40T - KV-34SL45 - KV-35S40 - KV-35S45 - KV-37SL45 - KV-32V40 - KV-32V65 - KV-35V65 - KV-37VL65 SERVICE MODE AND POWER SUPPLY CIRCUIT

SONY KV-32S40 - KV-32S45 - KV-34SL40T - KV-34SL45 - KV-35S40 - KV-35S45 - KV-37SL45 - KV-32V40 - KV-32V65 - KV-35V65 - KV-37VL65 SERVICE MODE AND POWER SUPPLY CIRCUIT


 CRT TV

 SERVICE MODE AND POWER SUPPLY CIRCUIT 


SERVICE MODE PROCEDURE
1. Standby mode. (Power off)
2. DISPLAY >5 >VOLUME + >POWER ON  …on the Remote Commander. (Press each button within a second.)
3. The CRT displays the item being adjusted.
4. Press 1 or 4 on the Remote Commander to select the item.
5. Press 3 or 6  on the Remote Commander to change the data.
6. Press MUTING  then ENTER to write into memory.
7. Press 8 then ENTER on the Remote Commander to initialize.
Carry out step 7 when adjusting IDs 0 to 4 and when replacing and adjusting IC002.
WARNING: Do NOT turn off the power or AC immediately after pressing MUTING  then ENTER  . Wait at least 10 seconds.
SUB BRIGHT ADJUSTMENT (SBRT)
1. Set to Service adjustment Mode.
2. Input a gray scale pattern signal.
3. Set the PICTURE to minimum, and BRIGHT to normal.
4. Select SBRT with 1and 4.
5. Adjust SUB BRIGHT level with 3 and 6 so that the stripe second from the right is faintly visible.
6. Write into the memory by pressing MUTING  then ENTER
SUB CONTRAST ADJUSTMENT (SCON)
1. Input a color-bar signal.
2. Set to Service adjustment Mode.
3. Select the item DCOL to "0" level.
4. Set the conditions as follows.
PICTURE . . . . . . . . . . . MAX
COLOR . . . . . . . . . . . MIN
BRIGHT . . . . . . . . . . . CENTER
R ON . . . . . . . . . . . ON (1)
G ON . . . . . . . . . . . OFF (0)
B ON . . . . . . . . . . . OFF (0)
5. Connect an oscilloscope probe to C Board, CN1761 pin 1 (RED OUT).
6. Select SCON with 1 and 4 .
7. Adjust with and for: 2.10 ± 0.01 Vp-p.
8. Reset the item DCOL to "1" level.
9. Write the memory by pressing MUTING then ENTER
10. Return the following back to normal after adjustment.
PICTURE . . . . . . . . . . . MAX
COLOR . . . . . . . . . . . CENTER
BRIGHT . . . . . . . . . . . CENTER
R ON . . . . . . . . . . . ON (1)
G ON . . . . . . . . . . . ON (1)
B ON . . . . . . . . . . . ON (1)
DISPLAY POSITION ADJUSTMENT (DISP)
1. Input a color-bar signal.
2. Set to Service adjustment Mode.
3. Select DISP with 1 and 4 .
4. Adjust with 3 and  6 for adjustment of characters to center .
5. Write the memory by pressing MUTING then ENTER .
SUB HUE, SUB COLOR ADJUSTMENT (SHUE, SCOL)
1. Input a color-bar signal.
2. Set to Service adjustment Mode.
3. Connect oscilloscope probe to C Board, CN1761 Pin3 (BLUE OUT).
4. Select SHUE and SCOL with 1 and 4 .
5. Adjust with 3 and 6 for the V1 = V4 ± 0.1Vp-p (SCOL) and V2 = V3 ± 0.1Vp-p (SHUE).
6. Change data according to the following table;
SCOL
SHUE
32"
+2 steps
-1 steps
35"
+2 steps
-1 steps

7. Write into the memory by pressing MUTING then ENTER
V. SIZE ADJUSTMENT ( VSIZ)
1. Input a cross-hatch signal.
2. Set to Service adjustment mode.
3. Select VSIZ with 1 and 4.
4.Adjust with 3 and 6  for the best vertical size.
5.Write into the memory by pressing MUTING  then ENTER.
V. POSITION ADJUSTMENT (VPOS)
1.Input a cross-hatch signal.
2.Set to Service adjustment Mode.
3.Select VPOS with 1 and 4  .
4.Adjust with 3 and  6 for the best vertical center.
5.Write into the memory by pressing MUTING then ENTER .
H. POSITION ADJUSTMENT (HPOS)
1. Input a cross-hatch signal.
2. Set the Service adjustment Mode.
3. Select HPOS with 1 and 4 .
4. Adjust with 3 and 6 for the best horizontal center.
5. Write into the memory by pressing MUTING then ENTER.
POWER SUPPLY CIRCUIT 
CLICK ON THE IMAGE TO ZOOM IN
Posted By: FRANK at 13:12
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