Denon DCD-315 - Page 18

ge DCD-315
4. Judgement by checking of changing PU due to HF level Vir
(check for proper HF waveform)
Actuate the service
program. (service mode)
HF waveform
[0.2V/div]
Load the adjustment
disc (CA-1094), (Note 1)
Press|PAUSE]button,
and playback disc.
(display G3 )
VHF
GND [0.5y/div]
Observe with oscilloscope
across test point RFO
and VC.
Measure RFO level VHF signal
No
Is VHF shown
more than 0.85V
Yes
No
Is PU lens cleaned?
Yes Clean the PU lens.
signal. Execute PU replacement.
No abnormality in PU. PU abnormality due to VHF
Note 1: Adjustment disc (CO-76143) VHF = 0.85 V.
18