TROUBLESHOOTING GUIDE
E-28
D-VR4SU/D-VR4SC
YES
YES
YES
YES
NO
NO
NO
NO
PB AUDIO (Hi-Fi)
DOES NOT APPEAR
Does E-E AUDIO
(STEREO) appear ?
Does NORMAL PB
AUDIO appear ?
Is there audio signal at
pin 24 and 27 of IC701 ?
Is there audio signal at
pin 78 and 80 of IC701 ?
Check circuit around of J8005.
Refer to section "E-E AUDIO
(STEREO) DOES NOT APPEAR".
Refer to section "AT PLAY,
AUDIO DOES NOT APPEAR".
Check circuit of HEAD AMP
and CYLINDER UNIT.
Change IC701.