No Shooting; Image Can Not Be Taken - Epson PhotoPC 800 Service Manual
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Also See for PhotoPC 800:
- User manual (224 pages) ,
- Product information (15 pages) ,
- Brochure & specs (2 pages)
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EPSON PhotoPC 800
Table 3-2. Check points when the camera has no power
Procedure
Check-point
order
Check 80-pin (XIN)
6
oscillation of IC301.
Check 82-pin (XCIN)
7
oscillation of IC301.
8
Check IC301.
3.2.2 No Shooting
Table 3-3. No shooting
Procedure
Check-point
order
1
Press the shutter button.
Check 4 or 5-pin of IC301
2
pulse input (SCAN IN 0, 1)
Check 7 or 8-pin (PON, P
3
(A) ON) pulse input.
Is all 6, 17 or 8 pin (PON,
4
P(A) ON) of CN301 high?
Is the serial communication
5
normal?
6
Check CA2
Trouble Shooting
Judgement
Solution
NO
Check X3001.
Check X3002, R3004,
NO
C3001, C3002.
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--
Judgement
Solution
--
--
Check S3029, R3021,
NO
R3022 and shutter switch.
LOW
Check IC301 and PW1.
Check IC301, PW1 and
NO
CA2.
NG
Check IC301 and CA2.
--
--
Troubleshooting
3.2.3 Image can not be taken
Table 3-4. Image can not be taken
Procedure
Check-point
order
Is the system drive clock
1
(72MHz) input to 280-pin
(CLK IN1) of IC102?
Is CLK(36MHz) input to
2
132-pin (CLK IN) of IC101?
Check 61-pin (ZAS) of
3
IC101.
Check 52-pin (ZBREQ) of
4
IC101.
Check 56-pin (ZBGRNT) of
5
IC101.
Check the signal of 118 and
6
119-pin(IRL1, 2) of IC101.
Check CPU and soldering
7
for memory, etc.
Revision A
Judgement
Solution
YES
Check X1101, IC111.
NO
Check 278 pin of IC102.
Check the address with
NG
IC121 and data bus.
NG
Check ASIC.
NG
Check ASIC.
8-bit microcomputer and
NG
HANDSHAKE of RS-
232C are defective.
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--
54
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