8 Self-check Function

When symptoms like “the power fails sometimes” or “sometimes there is no picture and/or sound” can not be confirmed at thetime of servicing, the self-check function can be used to confirm the occurrence and to find the defective circuit.In case of “power failure”, flashing of the “POWER” indication (red) at the front of the unit can be used to narrow down the +Bline.

8.1. How to access8.1.1. AccessProduce TV reception screen and, while pressing [VOLUME-] button on the main unit, press [SLEEP] button on the remotecontroller unit simultaneously.

8.1.2. ExitWhen the AC code is pulled out and opened, the display returns to the normal screen.

8.1.3. Screen display

Display Ref.No. Description BoardUV TU8200 TV Tuner DT-BoardDT1 IC8240 HDSL PEAKS_Lite DT-BoardDT2 IC8240 HDSL PEAKS_Lite DT-BoardSND IC2608 BBE VIVA H-BoardAVSWV IC2602 Video SW H-BoardAVSWA IC2605 Audio SW H-BoardGC4P IC4026 GC4PRO DG-BoardHDMI IC5003 HDMI I/F RECEIVER DV-BoardMEM IC4008 EEPROM DG-BoardRTC IC4024 CLOCK GEN DG-BoardPANEL IC9300 Display Processor D-Board

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8.2. Power LED Blinking timing chart 1. Subject

Information of LED Flashing timing chart. 2. Contents

When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, thedefective block can be identified by the number of blinkes of the Power LED on the front panel of the unit.

3. RemarksAbove Fan function is operated during the fans are installed.

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8.3. No PowerFirst check point

There are following 2 states of No Power indication by power LED. 1. No lit 2. Red is lit then turns red blinking a few seconds later. (See 8.2.)

1. No lit

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8.4. No Picture

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8.5. Local screen failurePlasma display may have local area failure on the screen. Fig - 1 is the possible defect P.C.B. for each local area.

Fig - 1

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9 Serviceman Mode9.1. How to enter into Serviceman ModeWhile pressing [VOLUME- ] button of the main unit, press [RECALL] button of the remote control three times in a row (within 2seconds).

9.1.1. Adjustment method.....Use the remote control.�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 ( )

9.2. CancellationSwitch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.

9.3. Contents of adjustment mode�

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�Value is shown as a hexadecimal number.�

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�Preset value differs depending on models.�

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�After entering the adjustment mode, take note of the value in each item before starting adjustment.

Main item Sub item Sample DataPCT-ADJ PICTUER 22D

PICTUER2 200COLOR 30TINT 0S-BRT 800RFAGC1 74AGC-ADJ1 FIXRFAGC2 74AGC-ADJ2 FIX

OPTION BOOT SDOPT00 1ANT-POW OFFPOF-SET NORMALSTB-SEC SECEMGCY OFFCLK-ADJ 80EEP COPY ALL

RM-SET COPY ALLSTB-CAS - -

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9.4. Option

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