5. The disk is not loaded, or is not played.
Check the operation of the "
1
/
3
" button.
MAIN PCB (ADC_KEY2)
[XP10 : 7pin]
The voltage changes to around 0V when the
"
1
/
3
" button is pressed.
Check the Pickup.
MAIN PCB
[XP5 : 17pin]
No abnormalities in the PUHRF output
Check the following parts and surrounding
circuits
MAIN PCB
[U5, U6, U10]
No abnormalities in the circuits
Check the wires, etc.
MAIN PCB
[Between XP5 and mecha]
[Between XP4/XP6 and mecha]
No abnormalities in wires or connections
Replace the mechanical.
Check the state / soldering for the following
parts.
DISPLAY PCB
[SW2, ESD2, XP4]
MAIN PCB
[XP10, FB35, R131]
Check the surrounding circuits.
Replace the mechanical.
Repair the abnormal area.
Repair the abnormal area.
NO
NO
NO
NO
YES
YES
YES
YES
6. No audio output.
6.1. No sound is output from any inputs
6.2. No sound is output from DIGITAL IN
Check I2S between [U5 (SPHE8104)] and [U19
(STA339BW)]
MAIN PCB
[R250,R365,R366,R367]
I2S is input as normal to [U19]
Check the following parts and surrounding
circuits
MAIN PCB
[U9]
No sound is output from the DIGITAL IN, ANA-
LOG IN, TUNER and BLUETOOTH inputs
No sound is output from DIGITAL IN
Check the following parts and surrounding
circuits
MAIN PCB
[U19]
Check the following parts and surrounding
circuits
MAIN PCB
[U5]
Go to "
6.2. No sound is output from DIGITAL IN
Go to "
6.3. No sound is output from inputs
NO
NO
NO
YES
YES
YES
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
41