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14
[VIDEO BOARD] (SIDE A)
SL501
IC502
SL502
SL503
TEST
MODE
[VIDEO BOARD] (SIDE B)
SL501
D502
SL502
IC507
IC505
SL503
TEST MODE
VIDEO CD COLOR-BARS MODE
On this mode, the data of the color-bars signal as a picture signal and the 1kHz sine wave signal as a sound signal are output by the
mechanism control microcomputer (IC502) for video CD signal check. When measurement of the voltage and waveform on the VIDEO
board, perform it in this mode.
For refernce, the color-bars signal can be observed at J302 (VIDEO OUT) and the sound signal can be observed at J101 (VIDEO/MD
(AUDIO) OUT) using an oscilloscope.
1. Connect the lead wire to both ends of the land of SL503 of the VIDEO board.
2. Turn the power on. Press FUNCTION button to select CD.
3. After 2 or 3 seconds later, connect the lead wire.
4. After measuring, remove the lead wire connected.
Содержание MCE-F88K
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Страница 30: ...30 30 MCE F88K 6 11 SCHEMATIC DIAGRAM DISPLAY SECTION See page 57 for IC Block Diagrams Page 32 Page 24 ...
Страница 32: ...32 32 MCE F88K 6 13 SCHEMATIC DIAGRAM MIC SECTION See page 57 for IC Block Diagrams Page24 Page 30 ...
Страница 33: ...33 33 MCE F88K 6 14 PRINTED WIRING BOARD MIC SECTION See page 17 for Circuit Boards Location Page 25 Page 31 ...
Страница 34: ...34 34 MCE F88K 6 15 SCHEMATIC DIAGRAM TRANS SECTION Page 27 400mA 200V Page 24 ...