Troubleshooting; Video Circuit - Hitachi DV-W1U Service Manual
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Also See for DV-W1U:
- Instruction manual (67 pages) ,
- Owner's manual (66 pages) ,
- Service manual (35 pages)
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3. Troubleshooting
3-1. VIDEO CIRCUIT
1 - 4
NO IMAGE
ARE SIGNALS
Yes
OUTPUT FROM VIDEO
OUTPUT TERMINAL?
No
ARE SIGNALS
Yes
OUTPUT FROM PG2201
pins 17, 15, 13, 11, 9, 7,
3?
No
ARE SIGNALS
Yes
OUTPUT FROM
IC2202 pins 35, 33, 29,
28, 25, 24?
No
ARE SIGNALS
No
IC2202 pins
14, 15, 16, 20, 21?
Yes
+5V AT IC2202
No
pins 46, 34, 32, 30, 27,
19, 11, 1 (VDD)?
Yes
IS VOLTAGE AT
No
IC2202 pins 44
(RESET) H LEVEL?
Yes
No
IS CLOCK IN
IC2202 pin 48?
Yes
REPLACE IC2202
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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
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