2-13 (E)
HKDV-900
The counter display changes without button operation
2-3-3. Troubleshooting for ROM Version Display Error
The display of version is not correct
2-3-4. Troubleshooting for ROM Test Error
Error display
2-3-5. Troubleshooting for RAM Test Error
Error display
2-3. Troubleshooting
Is the harness between CN401 (A-3) on the
CP-364 and CN2 (A-1 : B side) on the CP-365
boards properly connected?
Connect harness connectors properly and
recheck them
OK
Is input signal of IC311 (G-3) (pin 35 :
+
,
pin 33 :
_
) on the CP-364 board proper?
OK
[+]
/
[_]
switch S114 or S117 (B-1/CP-365)
defect or harness disconnection
+
5 V and GND are repeated
IC311 defect on the CP-364 board or
soldering defect
NG
Replace ROM and recheck it
NG
Address bus short or data bus short
Replace ROM and reckeck it
NG
Address bus shot or data bus short
Replace RAM and recheck it
NG
Address bus short or data bus short
Summary of Contents for HKDV-900
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Page 88: ...Printed in Japan Sony Corporation 2004 9 16 B P Company 2000 HKDV 900 SY J E 9 967 923 03 ...