Hitachi DV-W1U - Manual (Page 8)

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3. Troubleshooting
3-1. VIDEO CIRCUIT
ARE SIGNALS
OUTPUT FROM VIDEO
OUTPUT TERMINAL?
Yes
No
CHECK SIGNAL
CABLE/ MONITOR
CHECK VIDEO OUTPUT
SECTOR (PG1302/ J1307/ J1302/
J1306/ J1361) OF JAK PWB
CHECK IC3301/ IC3302 of
JAK PWB
CHECK IC1201/ IC1101/ IC1601
CHECK POWER
SUPPLY CIRCUIT
CHECK IC1601
CHECK X2201/ R1218
REPLACE IC2202
ARE SIGNALS
OUTPUT FROM PG2201
pins 17, 15, 13, 11, 9, 7,
3?
ARE SIGNALS
IC2202 pins
14, 15, 16, 20, 21?
+5V AT IC2202
pins 46, 34, 32, 30, 27,
19, 11, 1 (VDD)?
IS VOLTAGE AT
IC2202 pins 44
(RESET) H LEVEL?
IS CLOCK IN
IC2202 pin 48?
Yes
No
Yes
No
No
Yes
No
Yes
No
Yes
No
Yes
ARE SIGNALS
OUTPUT FROM
IC2202 pins 35, 33, 29,
28, 25, 24?
NO IMAGE