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 !

Friday, 8 March 2019

PANASONIC TX-L32E30Y - TX-L37E30B SERVICE MODE LED BLINKING CODE AND ADJUSTMENTS

PANASONIC TX-L32E30Y - TX-L37E30B SERVICE MODE LED BLINKING CODE AND ADJUSTMENTS

PANASONIC TX-L32E30Y - TX-L37E30B  

SERVICE MODE LED BLINKING CODE AND ADJUSTMENTS 

REMOVING THE REAR COVER 
Remove the 36 [34] fixing screws, 4 caps and the backcover.

Specification of KEY for CI Plus, DTCP-IP, One-to-one and Widevine General information:
1. EEPROM (IC8902) for spare parts has the seed of KEY for each.
2. The final KEY data will be generated by LDA3 IC (IC8000) when SELF CHECK was done and are stored in both LDA3 IC (IC8000) and EEPROM (IC8902).
Three KEY are not generated for all models.
The necessary KEY are only generated and stored depend on the feature of models.
Replacement of ICs:
When LDA3 IC (IC8000) is replaced, EEPROM (IC8902) should be also replaced with new one the same time.
When EEPROM (IC8902) is replaced, LDA3 IC (IC8000) is not necessary to be replaced the same time.
After the replacement of IC, SELF CHECK should be done to generate the final KEY data.
How to SELF CHECK: While pressing [VOLUME ( - )] button on the main unit, press STATUS button on the remote control for more than 3 seconds.
TV will be forced to the factory shipment setting after this SELF CHECK.
Setting Inspection
Voltage Confirmation
A board
Description , Test point , Voltage
SUB1.2V > TP8100 > 1.24V - 1.31V
SUB 1.5 V > TP8101 > 1.47V - 1.55V
SUB3.3V > TP5400 > 3.17V – 3.43V
SUB5V > TP5420 > 4.94V – 5.31V
USB5V >  TP5440 > 4.94V - 5.31V
PNL12V > TP4056 > 11.5V – 12.5V
* Connect AC 230V to P1 connector
** Connect DC 2.5V to TV_SUB_ON P2 connector – pin 8 /TP7505/ from voltage divider.
Self Check
Self-check is used to automatically check the bus lines and hexadecimal code of the TV set. To enter Self-Check mode, keep
pressing the down (-/v) button on the TV set and press the STATUS button on the remote control. To exit Self Check,
switch off the TV set at the power button.
Power LED blinking
Blinking times
Contents
Check point
1
BL_SOS
A BOARD
P BOARD
LD-BOARD
3
SOS
A BOARD
4
SUB12V_SENSE_SOS
A BOARD
7
SUB3.3V_SENSE_SOS
A BOARD
9
SOUND_SOS
A BOARD
P BOARD
10
ZWEI_SOS
A-BOARD
TC-unit on panel
12
BE(LDA3)SOS
A BOARD
13
EMERGENCY
A BOARD
14
IROM_SOS
A-BOARD

Service Mode Function
MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be adjusted by remote control in Service Menu
How to enter SERVICE
While pressing (-/v) button on the TV unit, press 0 on the remote control for 3 times within 2 seconds.
Note: To exit from Service mode, press the exit button on remote control.
Service Tool Mode
How to access
1. Select [SRV-TOOL] in Service Mode.
2. Press [OK] button on the remote control.
Display of SOS History
SOS History (Number of LED blinking) indication.
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, On/Off
Note: To display TIME/COUNT menu, highlight position, then press MUTE for 3sec.
Time: Cumulative power on time, indicated hour: minute by decimal.
On/Off: Number of On/Off switching by decimal.
Note: This indication will not be cleared by either of the self-checks or any other command.
Exit
Disconnect the AC cord from wall outlet or switch off the power with [Power] button on the main unit.
Hotel Mode
Access command to the Hotel mode setup menu. In order to display the Hotel mode setup menu, please enter the following command (within 2 second).
[TV] : Vol.[Down] + [REMOTE] : AV (3 times)
3. To exit the Hotel mode setup menu.
Disconnect AC power cord from wall outlet
Data Copy from TV set to SD Card
1. Turn on the TV set.
2. Insert SD card with a startup file (pwd.file) to SD slot.
On-screen Display will be appeared according to the startup file automatically.
3. Input a following password for (a) or (b) by using remote control.
(a) For Board replacement: 2770
(b) For Hotel: 4850
Data will be copied from TV set to SD card.
It takes around 2 to 6 minutes maximum for copying.
4. After the completion of copying to SD card, remove SD card from TV set.
5. Turn off the TV set.
Note: Following new folder will be created in SD card for data from TV set.
(a) For Board replacement: user_setup
(b) For Hotel: hotel
Data Copy from SD Card to TV set
1. Turn on the TV set.
2. Insert Sd card with Data to SD slot.
On-screen Display will be appeared according to the Data folder automatically.
3. Input a following password for (a) or (b) by using remote control.
(a) For Board replacement: 2771
(b) For Hotel: 4851
Data will be copied from SD card to TV set.
4. After the completion of copying to SD card, remove SD card from TV set.
(a) For Board replacement: Data will be deleted after copying (Limited one copy).
(b) For Hotel: Data will not be deleted and can be used for other TVs.
5. Turn off the TV set.
Note:
1. Depending on the failure of boards, function of Data for board replacement does not work.
2. This function can be effective among the same model numbers.
Adjustment Method
Subcontrast adjustment
1. Receive PAL colour bar (100% white) RF signal.
2. Enter “Contrast” adj. In SERVICE mode.
3. Start adjusting by using Yellow Key.
4. If the adjustment finished normally, the letter of Contrast will change from red to black.
White Balance adjustment
1. Procedure basically performs checking using the production software and
make automatic adjustment using external computer.
2. It adjusts in the mode of: Colour balance Normal Viewing Mode Dynamic.
Posted By: FRANK at 02:16
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