13
PD-30-K
5
6
7
8
5
6
7
8
A
B
C
D
E
F
5. DIAGNOSIS
5.1 TROUBLESHOOTING
Power does not turn on
Yes
Power does not turn on
Is the voltage of CP1701
pin 14 about 3.3
V
?
Is the voltage of IC3001
pin 1
8
about 3.3
V
?
N
o
Check the T501 (PO
W
ER PCB)
and around circuits.
N
o
Check the Q1707 and Q1709.
Yes
Is the voltage of CP1701
pin 11 about 3.3
V
?
N
o
Check the IC3001 and arround
circuits.
Yes
Is the voltage of Q502
collector 0
V
?
Yes
N
o
Check the Q502.
Replace the PO
W
ER PCB Assy.
Display is not displayed
Yes
Display is not displayed
Are the voltages of IC6001
pin 13, 43 about 3.3
V
?
Is the voltage of IC6001
pin 30 about -2
8
V
?
N
o
Check the
V
+3 line of
regulator block.
N
o
Check the Q1703, Q1701 and
arround circuits.
Yes
Are the voltages of
V
6001
pin 1, 2 about -23
V
?
Are the voltages of
V
6001
pin 34, 35 about -19
V
?
N
o
Check the FL_DC+/FL_DC- line of
regulator2 block arround circuits.
Yes
Replace the
V
6001 or IC6001.
Tray does not open / close
Yes
Tray does not open/close
Are the voltages of IC2301
pin
8
, 19 DC 6
V
?
Are MECHA Assy and CP2302
connected?
N
o
Check the D6
V
line of
regulator block.
N
o
Check connection of MECHA Assy
and CP2302.
Yes
Is the voltage of CP1701
pin 11 about 3.3
V
?
N
o
Check the IC3001 and arround
circuits.
Yes
Replace the MECHA Assy.
DIGITAL OUT is not output by DIGITAL OUT
(COAXIAL) at the CD playback
Yes
DIGITAL OUT is not output by
DIGITAL OUT (COAXIAL)
at the CD playback
Is waveform of J7001 pin 2
0.5
V
p-p?
Is waveform of IC4001
pin 215 0.5
V
p-p?
N
o
Check connection of audio cable.
N
o
Check the Q7002 and arround
circuits.
Yes
Replace the IC4001.
