Panasonic WEMV180A - VIDEO IMAGER Service Manual - Page 7

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Panasonic WEMV180A - VIDEO IMAGER Service Manual

ADJUSTMENT PROCEDURE

1. Test Equipment Required
8
The following Test Equipments are required for
adjustment of the Video Imager WE-MV180A.
8
Video Signal Generator (S-Video signal, Composite Video
signal, Crosshatch signal, Stairstep signal and etc.)
8
Oscilloscope
8
Frequency Counter
8
Digital Voltmeter
8
Vectorscope
8
Underscanned Colour Video Monitor
8
S-Video Cable
8
Composite Video Cable
8
Ceramic Screwdriver
8
Colour Chip Chart (Part Number: YWV2100RB98)
8
Make an Extension Cable as follows:
Cut a regular S-Video Cable as short as possible.
Solder three Alligator Clips (one for Y signal, one for C
signal and the other one for both Ground) as shown in Fig.
1-1.
To Signal Generator
Y signal (Pin 3)
C signal (Pin 4)
Y/C Ground (Pins 1 and 2)
To Video Board
Y Signal
TP1 (YIN)
C Signal
TP7 (CIN)
Y/C Ground
TPG3 (GND)
Fig. 1-1
2. Disassembling Procedure for
Adjustment
8
Referring to Fig. 2-1, remove two screws that secure the
LCD Monitor Ass'y.
Note : Do not make any damage to the LCD Monitor
Ass'y.
Remove two screws.
8
Referring to Fig. 2-2, remove fourteen screws that secure
the Upper Cover and open the Upper Cover Ass'y.
Note : Use some cushion between the Bottom Cover
Ass'y and Upper Cover Ass'y free from damage.
Remove ten screws.
Remove four screws.
4
LCD Monitor Ass'y
Fig. 2-1
Upper Cover
Fig. 2-2