TROUBLESHOOTING GUIDE
E-31
D-VR4SU/D-VR4SC
E-E DOES NOT APPER AT
DVD MODE
No
Yes
No
Yes
No
Yes
Check VCR block.
Check IC4001 and
peripheral circuit.
Check IC4009 and
peripheral circuit.
Check VCR block.
Is there a signal in at pin
97, 107, 108, 117, 118 and
127 of IC4001 with each
output mode ?
Is there a signal in at
pin 2, 4, 9 and 207 of
IC4009 ?
Is there a signal in at pin 17 and
19 of CP7301 and at pin 1 and
19 of CP7302 with each input ?