Page 1
CD Stereo System
SC-EN35GCS
SC-EN35GN
SC-EN35GT
SC-EN35GD
SC-EN35DBEB
SC-EN35P
SC-EN35PC
ORDER NO. MD0706010SE
A6
SC-EN35E
SC-EN35EE
SC-EN35EG
Colour
(K) .... Black Type (For EN35GCS/GN/GT/GD/P/PC)
(S) .... Silver Type (For EN35DBEB/E/EE/EG)
Subject : Additional Information on Troubleshooting Flowchart (CD Section Circuit)
Please use this service manual together with the service manual for Model No.[SC-EN35GCS/GN/GT/GD-K,
Order No. MD0704058CE], [SC-EN35DBEBS, Order No. MD0704057CE], [SC-EN35E/EE/EG-S, Order No.
MD0703014CE] and [SC-EN35P/PC-K, Order No. MD0703013CE].
© 2007 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
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S
C-EN35GCS / SC-EN35GN / SC-EN 35GT / SC-EN 35GD / SC-EN35DB EB / S C-EN35P / SC-EN 35PC / SC-EN 35E / SC-EN 35EE / SC-EN35 EG
1 Troubleshooting Flowchart (CD Section Circuit)
CD can not
playback
Disc
rotating
YES
TOC
reading
YES
Display
shows “PLAY”
Playing time appear on the display screen.
IC7001
Pin71, 63, 64
Pin71: BLKCLK
Pin63: LRCK
Pin64: SR DATA
IC7001
Pin52, 56, 59
NO output
IC7001
NG
NO
NO
NO
Output NG
OK
Output OK
main unit
Check
Can not access
IC7001
NG
NG
& R7323 (3.3K)
Not connect or cut
IC7001
Pin45 TP50
IVPP output level
IC7001
Pin24 (TRP)
OK
R7331 (22K)
IC7001
NG
IC7002
NG
2
Page 3
Take off clamper
& test disc
Change all non
CD functions to CD
SC-EN35 GCS / SC-EN35GN / SC-EN35GT / SC-EN35GD / SC-EN 35DBEB / SC-E N35P / SC-EN 35PC / SC-EN 35E / SC-EN35EE / SC-EN35 EG
Above 0.2V
Laser pick-up NG
(Laser diode NG)
IC7002
NG
Laser pickup
Laser move up
R7601 voltage
Change all non
CD functions to CD
NG
Spindle motor
Not moving
movement
One time, after moving to inner,
moves 2~3mm to outer track
NO
& down
YES
Laser diode
blinking
YES
at terminals
Below 0.2V
Test disc
IC7002
Pin11, 12
OK
NG
NO
R7601 voltage
at terminals
Above 0.4V
Laser pickup NG
Above 0.6V
Q7601 NG or
Laser pick-up NG
IC7002
Pin15, 16 output
Laser pick-up NG
Below 0.4V
Q7601
voltage
Below 0.6V
IC7001
NG
NG
IC7001
Pin25 (FOP)
OK
IC7002
NG
Laser pick-up
position
Inner track
CN7002
Pin2 (RESET_SW)
Inner track limit
switch (S7201)
NG Open
NG NG
NG
Traverse unit
IC7001
NG
Outer track, or middle
“L” “H”
IC7002
Pin13, 14
NG
Pin2 (RESET_SW)
Inner track limit
switch (S7201)
OK
CN7002
Short
IC7001
Pin23 (TRV)
OK
IC7002
NG
3
FLE0706
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