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!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Friday 8 March 2019

PANASONIC TC- 32LX700 SERVICE MODE STANDBY LED FLASHING CODE AND POWER SUPPLY CIRCUIT

PANASONIC TC- 32LX700 SERVICE MODE STANDBY LED FLASHING CODE AND POWER SUPPLY CIRCUIT


PANASONIC TC- 32LX700 

SERVICE MODE STANDBY LED FLASHING CODE AND POWER SUPPLY CIRCUIT  


SELF CHECK
1. Checking the IIC bus lines
2. Power LED Blinking timing
Check of the IIC bus lines
How to access
Self-check indication only:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control for more than 3 seconds.
Self-check indication and forced to factory shipment setting:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds.
Exit
Disconnect the AC cord from wall outlet.
POWER LED BLINKING AND CAUSES
When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by the number of blinkes of the Power LED on the front panel of the unit.

SERVICE MODE
How to enter into Service Mode
While pressing [VOLUME ( - )] button of the main unit, press [RECALL] button of the remote control three times within 3 seconds.
USE OF  KEYS
“1” button...Main items Selection in forward direction
“2” button...Main items Selection in reverse direction
“3” button...Sub items Selection in forward direction
“4” button...Sub items Selection in reverse direction
“VOL” button...Value of sub items change in forward direction ( + ), in reverse direction ( - )
Contents of adjustment mode
Value is shown as a hexadecimal number.
Preset value differs depending on models.
After entering the adjustment mode, take note of the value in each item before starting adjustment.
HOW TO EXIT SERVICE MODE
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
SRV-TOOL
How to access
1. Select “SRV-TOOL” in Service man Mode.
2. Press [OK] button on the remote control.
SOS History
SOS History (Number of LED blinking ) indicatrion.
From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment. This indication will be cleared by “Self-check indication and forced to factory shipment setting”.
POWER ON TIME/COUNT
Time : Cumulative power on time, indicated hour : minute by decimal
Count : Number of On times by decimal
Note : This indication will not cleared by self-check or any command.
Exit
1. Disconnect the AC cord from wall outlet.
VOLTAGES - AP BOADR
VOLTAGE
TEST POINT
SPECIFICATION
24V
TP7904
24.0±1.2V
SUB_5V
TP7211
5.12±0.25V
SUB_9V
TP7213
9.27±0.45V
BT_30V
TP7601
31.5±2.5V
HQ_3.3V
TP745
3.38±0.17
SOUND_15V
TP7209
15.2V±0.75V
PANEL_12V
TP7702
12.14±0.6V
STB_5V
TP7151
5.0±0.5V

VOLTAGES - A BOARD
VOLTAGE
TEST POINT
SPECIFICATION
STB3.3V
TP7006
3.3±0.16V
SUB1.2V
TP5601
1.26±0.06V
SUB1.8V
TP5602
1.83±0.09V
SUB3.3V
TP5600
3.3±0.16V
MHQ1.2V
TP4209
1.22±0.06V
MHQDDR2.5V
TP4210
2.5±0.12V

PICTURE LEVEL ADJUSTMENT
procedure
 1. Receive the sprit color bar.
(Screen mode: ZOOM or FULL Picture mode: DYNAMIC AI: OFF AI Picture: OFF)
*BACK LIGHT +30
Inspection
1. Enter Service mode, and select MAIN_ADJ PICTURE.
Volume UP/DOWN key makes GAIN displayed under PICTURE to set.
Pushing the remote controller “OK” key for about 3 seconds, GAIN is suited to the adjustment value automatically.
Hotel mode
Access command to the Hotel mode setup menuIn order to display the Hotel mode setup menu, please enter the following command (within 2 second).
[TV] : Vol. “Down” + [REMOTE] : TV/VIDEO (3 times)
To exit the Hotel mode setup menu Disconnect AC power code from wall outlet.
POWER SUPPLY CIRCUIT 
STANDBY 
CLICK ON THE IMAGE TO ZOOM IN
Posted By: FRANK at 05:05
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