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 !

Monday 25 March 2019

PANASONIC TX-32LX60 _ TX-26LX60 _ SERVICE MODE _ ADJUSTMENTS _ DISASSEMBLE _ MAIN VOLTAGE POINTS & VOLTAGES _ WHITE BALANCE ADJUSTMENT

PANASONIC TX-32LX60 _ TX-26LX60 _ SERVICE MODE _ ADJUSTMENTS _ DISASSEMBLE _ Main Voltage Points & Voltages _ White Balance Adjustment





HOW TO REMOVE PEDESTAL

  • Lay the main unit face down.
  • Remove the 2 fixing screws and hinge cover.
  • Remove the 8 fixing screws and the pedestal assembly.


TO REMOVE BACK COVER
  • Remove the 2 fixing screws and hinge cover.
  • Remove the 16 fixing screws.
  • Carefully remove the back cover and disconnect two AV3 wires.


CHASSIS BOARD LAY OUT

Board Name &  Function
  • A-Board  à Main Board
  • B-Board à Tuner
  • H-Board à AV3 Terminal
  • Key Control à Key Control
  • K-Board Mains Input à Power Switch
  • P-Board à Power Supply
  • V-Board à Remote Receiver, LED IR, Bats.
A-BOARD [NORMAL MODE]
            Test point Position --> Voltage
  • TP004 à C870, + pin 33V ± 3V
  • TP005 à Connector A7, pin 22 12V [15V]
  • TP006 à C1500, + pin 8V ± 0,3V
  • TP008 à C1700, + pin 5V ± 0,2V
  • TP010 à C890 - R898 3,3V ± 0,1V
  • TP012 à Q878, pin 1 3,3V ± 0,1V
  • TP017 à C872, + pin 10,5V ÷ 16V
  • TP018 à IC252, pin 5 24V
  • TP019 à IC862, pin 1 24V
  • TP023 à Connector A7, pin 12 24V
Standby mode
  • TP009 à C883, + pin 1,8V ± 0,1V
  • TP013 à C868, + pin 3,3V ± 0,1V
P-BOARD [NORMAL MODE]
  • TP001 à Connector P2, pin 20 12V ± 2V [15V± 2V]
  • TP002 à Connector P2, pin 8 24V ± 2V
  • TP003 à Connector P2, pin 9 24V ± 1V
Standby mode
  • TP002 Connector P2, pin 8 24V
  • TP003 Connector P2, pin 9 <2V
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 STATUS button on the remote control and press the down (-/v) button on the TV set.
  • To exit Self Check, switch off the TV set at the power button.
TO ENTER SERVICE MODE
  • Set the Bass to maximum position, set the Treble to minimum position then keep pressing the INDEX button on the remote control and press the down button (-/v) on the TV set, this will place the TV set into the Service Mode 1.
REMOTE CONTROL KEY FUNCTIONS DURING SERVICE MODE
  • Press the RED / GREEN buttons to step up / down through the functions.
  • Press the YELLOW / BLUE buttons to alter the function values, to alter White Raster use +/- buttons
  • Press the OK button after each adjustment has been made to store the required values.
  • To exit the Service Mode, press the "N" button.
Setting indication [Note:  All setting values are approximate.]
  • Sub-Contrast à Sub-Contrast 23 à Receive a 80% white level Philips Pattern with correct sound system (B/G, D/K) via aerial input. For Sub-Contrast alignment press "Blue" button, wait until the figure color is changed from red to black color.  Press the OK.
  • DVCO à DVCO 4 à Receive a 80% white level Philips Pattern via aerial input. For DVCO alignment press "Blue" button, wait until the figure colour is changed from red to black color. Press the OK.
  • Sub-Brightness à Sub-Brightness 0 à Optimum setting.
WHITE BALANCE ADJUSTMENT
  • Switch on the TV Set. Enter Service1. Step down to Highlight line and keep the aging time more than 20 minutes.
  • After aging time above set White Raster No.12 for Highlight and No.4 for Lowlight Press the OK button to store.
  • Put Minolta Sensor to the center of the LCD Panel with 25mm gap between Minolta Sensor and LCD Panel. Adjust "x" and "y" values by changing Red and Blue values.
  • Press OK button to store setting.
Item
Value
Highlight
x= 0,275±0,005

y= 0,275±0,005
Lowlight
x= 0,275±0,005

y= 0,285±0,005
Posted By: FRANK at 03:26
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