Monday, October 26, 2015

HITACHI 32PD5000/5100/5200/5300 - 42PD5000/5100/5200/5300 - 37PD5200/42PMA500E - 55PMA550E/55PD5200 SERVICE MODE AND POWER SUPPLY CIRCUIT

HITACHI 32PD5000/5100/5200/5300 - 42PD5000/5100/5200/5300 - 37PD5200/42PMA500E - 55PMA550E/55PD5200 

SERVICE MODE AND POWER SUPPLY CIRCUIT 

REMOTE CONTROL PART NUMBERS
37PD5000TE CLE-958
37PD5000VE  CLE-952A
Adjustment
SERVICE MODE 
Using the front control buttons with the set turned off (standby) can activate it.
Press the SUB-POWER button, INPUT SELECT button and button at the same time, and hold for more than 5 seconds.
The set turns on in adjustment mode with OSD.
Changing data and Selecting Adjustment code
When the set is in adjustment mode, the cursor UP,DOWN,LEFT,RIGHT and OK buttons of the remote control or front panel may be used as the adjustment keys.
UP, DOWN buttons are used for selecting adjustment code.
LEFT,RIGHT buttons are used for changing data values.
OK button is used for confirming the data.
After finishing the necessary adjustment press MENU button. Adjustment mode is released and the set returns to normal condition.
Memory Initialize operation
NOTE: The execution of this function returns the adjustment codes to the preset values, therefore, adjustment data will be lost.
Procedure
(1) Enter Adjustment Mode.
(2) Select MEMORY INIT adjustment code (No.704) and change the data value from 0 to 1.
(3) Activate MEMORY INIT by pressing OK button for more than 3 seconds.
(4) Select No.374 and change data value from 1 to 0.
(5) Check that the receiving channel goes to AV1. Unit is set to preset values.
Factory Reset
After all of the adjustments of main chassis are finished, perform FACTORY RESET.
Press the SUB-POWER button, INPUT SELECT button and UP button at the same time, and hold for more than 5 seconds. The unit is set to factory settings.
VOLTAGE ADJUSTMENT
32PD5000, 37PD5000, 37PD5000
Preparation
(1) Keep heat-run for 1 minutes or more.
(2) Connect the DC Voltmeter to the Vs test point and the GND point (or the Va test point and the GND point) on the Power Supply Unit.
(3) Receive the all black signal with no setup.
(4) Check the indication of Vs and Va voltages printed on the label located upper right side on the Panel Module.
Procedure
(1) If the difference between the printed voltage of Vs and the indicated value of Vs Voltmeter is over 0.1V, adjust the Vs ADJ VR located upward on the Power Supply Unit to make it within 0.1V.
(2) If the difference between the printed voltage of Va and the indicated value of Va Voltmeter is over 0.2V, adjust the Va ADJ VR located upward on the Power Supply Unit to make it within 0.2V.
(3) Check and do the procedure (1) again.
<Example of the Voltage Label>
Vs= 80.0V, Va=60.0V
Vw=140.0V ,Vx=60.0V
VOLTAGE ADJUSTMENT
55PMA550E
Preparation
(1) Keep heat-run for 1 minutes or more.
(2) Connect the DC Voltmeter to the Vs test point and the GND point (or the Va test point and the GND point) on the Power Supply Unit.
(3) Receive the all black signal with no setup.
(4) Check the indication of Vs and Va voltages printed on the label located upper right side on the Panel Module.
Procedure
(1) If the difference between the printed voltage of Vs and the indicated value of Vs Voltmeter is over 0.1V, adjust the Vs ADJ VR located upward on the Power Supply Unit to make it within 0.1V.
(2) If the difference between the printed voltage of Va and the indicated value of Va Voltmeter is over 0.2V, adjust the Va ADJ VR located upward on the Power Supply Unit to make it within 0.2V.
(3) Check and do the procedure (1) again.
<Example of the Voltage Label>
Vs= 82.0V, Va=63.0V
Vw=180.0V ,Vx=40.0V
Troubleshooting
How to get to Burn-in mode
This mode displays the test patterns of some single color raster in turn. These signals are from built-in generator of PDP panel. So it can be presumed that maybe the panel has some trouble when the screen of Burn-in mode is abnormal.
Using the front control buttons with the set turned off (standby) can activate this mode.
Press the SUB-POWER button, INPUT SELECT button and VOLUME DOWN button at the same time, and hold for more than 5 seconds.
The set turns on with single color raster and the OSD of [BURN IN: ON].
 To escape from this mode, press the SUB-POWER  button, INPUT SELECT  button and UP button at the same time, and hold for more than 5 seconds. Burn-in mode will be released.
How to recover the remote and front key function
If remote and front key cannot operate after miss set special function by front keys, these functions can recover by below method.
Press the SUB-POWER button, INPUT SELECT  button and DOWN button at the same time, and hold for more than 5 seconds. The set turns on the service menu mode.
Select No.175 and data set from [0] to [1].
Or
Press the SUB-POWER  button and DOWN button at the same time, and hold for more than 5 seconds.
Forced AVC mode (only for 37PD5200)
This model is set to "Forced AVC" mode. It makes the set cannot be turned on without connecting AVC.
Following procedures should be referred when servicing 42/32PD5200 without AVC box.
Procedure of escaping from this mode (before servicing)
Using the front control buttons with the set turned off (standby) can activate it.
Press the SUB-POWER button and VOLUME UP button at the same time, and hold for more than 5 seconds.
The set will be changed that the power of the monitor can be turned on without AVC.
Procedure of getting into this mode again (after servicing)
(1) Enter Adjustment Mode.
(2) Select adjustment code (No.323) and change the data value from 0 to 1.
The set will be changed again that the power of the monitor cannot be turned on without AVC
POWER SUPPLY CIRCUIT 
FOR REFERENCE PURPOSE ONLY  
CLICK ON THE IMAGE TO ZOOM IN