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 !

Wednesday 13 February 2019

SONY TRINITRON - 36XBR800_KV32HS500_KV32NV600_SELF DIAGNOSTIC FUNCTION AND LED BLINKING CODES.

SONY TRINITRON - 36XBR800_KV32HS500_KV32NV600_Self Diagnostic Function and LED blinking codes.


     When an error occurs, the Standby/Timer LED will flash a set of number of times to indicate the possible cause of the problem.  If there is more than one error, the LED will identify the first of the problem areas.
     # If a +B over current is detected, stoppage of vertical deflection is detected simultaneously.  The symptom that is diagnosed first by the micro controller is displayed on the screen.
     ## If Standby/Stereo LED flashes [6] times, unplug the unit and wait 10 seconds before performing the adjustment.
     Results for all of the following diagnostic items are displayed on screen.  If the screen displays [0], an error has occurred.

Diagnostic item
Lamp flashes
Display result
Probable cause location
Detected symptom
Power does not turn On
Does not light
---------
Power cord is not plugged in.
Fuse is burned out [F501]. [A-board]
Power does not come On.
No power is supplied to TV.
AC Power supply is faulty.
+B Over Current Protection [OVP]
2 times
2:0 or 2:1
H.OUT [Q5030] is shorted. [D-Board].
+B PWM [Q5003] is shorted (D-Board).
Power does not come on.
Load on power line is shorted.
Low +B Over Voltage [OVP]
3 times
3:0 or 3:1
IC6505 is faulty. (D-board)
Has entered standby mode.
Vertical Deflection stopped.
4 times
4:0 or 4:1
15V is not supplied (D-Board).
IC5004 is faulty. (D-Board).
Has entered standby mode after Horizontal raster.
Vertical deflection pulse is stopped.
Power line is shorted or power supply is stopped.
White Balance failure.
5 times.
5:1 of 5:0
Video Out [IC9001 – IC9003] is faulty. (CH, CX Board).
CRT drive [IC2801] is faulty.  (B Board).
G2 (Screen) is improperly adjusted.
No raster is generated.
CRT cathode current detection reference pulse output is small.
LOW +B OCP / OVP [over current | over voltage].
6 times
6:0 or 6:1
+5V line is overloaded. (A, B, M Boards).
+5V line is shorted. 9A, B, M Boards).
IC504 faulty [A-board]
No picture.
Horizontal deflection stopped.
7 times
7:1 or 7:0
 =======
No picture, No EHT. Dead set.

INTERNAL VIEW - PCB LOCATIONS

DISASSEMBLY PROCEDURE
REAR COVER REMOVAL



# Lift lever up on the right and left sides of the chassis bracket, and gently pull the chassis away from bezel. ## Pull up and rotate both the 'A' and 'D' boards in order to service the unit.



Caution:  Heat sink of IC5004 is ( --15V).  Care must be taken not to allow heat sink to touch any other components.
# Lift lever up on the right and left side of the chassis bracket, and gently pull the chassis assembly away from the bezel.   ##  Pull up and rotate both A & D boards in order to service the unit. ###  When plugging the connector from HM board to B board at CN3603, ensure two brown wires are facing upward towards neck assembly.


Posted By: FRANK at 04:18
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