
- 12 -
TROUBLESHOOTING GUIDE
1. NO POWER
CHECK U803.
CHECK
U803 PIN 3
VOLTAGE
(5V) ?
NO
NO POWER
(POWER INDICATOR OFF)
CHECK POWER
BOARD, AND FIND
OUT A SHORT POINT
AS OPENING
EACH POWER LINE
CHECK J705
VOLTAGE
PIN6, PIN7 (5V)?
NO
CHECK 5VS LINE
(OPEN CHECK)
CHECK
U804 PIN 3 Voltage
(5V) ?
NO
CHECK IIC LINE
CONNECTION
(U501, U502)
CHECK U201 VCC,
IS U201
PIN114 (3.3V)
VOLTAGE REPEATED
AS PULSE
SHAPE ?
NO
YES
YES
YES
NO PROBLEM
YES
CHECK KEY CONTROL
CONNECTOR ROUTINE
Содержание 9180-HB9
Страница 6: ...J705 J702 6 WIRING DIAGRAM Connector Ass y P N 6631T20022E Connector Ass y P N 6631T11016D ...
Страница 16: ... 16 EXPLODED VIEW 14 15 8 9 11 12 12 10 10 13 c 4 1 3 2 7 5 6 a a b ...
Страница 23: ...SCHEMATIC DIAGRAM 23 1 SCALER ...
Страница 24: ... 24 2 MICOM ...
Страница 25: ... 25 3 POWER ...
Страница 26: ... 26 4 CONNECTOR JACKS ...
Страница 27: ... 27 5 CONTROL KEY ...
Страница 28: ...Feb 2004 Printed in Korea P NO 3828TSO049G ...