Panasonic SC-EN37P / SC-EN37PC / SC-EN37EB / SC-EN37EG Service Manual / Supplement ▷ View online
SC-EN37P
SC-EN37PC
SC-EN37EB
SC-EN37EG
Colour
(K) .... Black Type
(K) .... Black Type
CD Stereo System
Subject : Additional Information on Troubleshooting Flowchart (CD Section Circuit)
Please use this service manual together with the service manual for Model No.[SC-EN37PC-K, Order No.
MD0705008CE],
MD0705008CE],
[SC-EN37P-K,
Order
No.
MD0703021CE]
and
[SC-EN37EB/EG-K,
Order
No.
MD0705009CE].
ORDER NO. MD0706011SE
A6
1 Troubleshooting Flowchart (CD Section Circuit)
CD can not
playback
Disc
rotating
TOC
reading
IC7001
Pin45 TP50
IC7001
Pin24 (TRP)
R7331 (22K)
& R7323 (3.3K)
Not connect or cut
Display
shows “PLAY”
IC7001
Pin71, 63, 64
IC7001
Pin52, 56, 59
IC7001
NG
IC7002
NG
IC7001
NG
IC7001
NG
Check
main unit
NO
NO
NO
YES
YES
NO output
Output OK
OK
OK
Output NG
Playing time appear on the display screen.
Can not access
IVPP output level
Pin71: BLKCLK
Pin63: LRCK
Pin64: SR DATA
Pin63: LRCK
Pin64: SR DATA
NG
2
SC-EN37P / SC-EN37PC / SC-EN37EB / SC-EN37EG
Take off clamper
& test disc
& test disc
One time, after moving to inner,
moves 2~3mm to outer track
moves 2~3mm to outer track
Laser pickup
movement
Laser move up
& down
Laser diode
blinking
R7601 voltage
at terminals
R7601 voltage
at terminals
Test disc
IC7002
Pin11, 12
IC7002
Pin13, 14
IC7002
Pin15, 16 output
IC7001
Pin25 (FOP)
CN7002
Pin2 (RESET_SW)
CN7002
Pin2 (RESET_SW)
IC7001
Pin23 (TRV)
Spindle motor
NG
IC7002
NG
IC7001
NG
IC7001
NG
IC7002
NG
IC7002
NG
Traverse unit
NG
Laser pick-up NG
(Laser diode NG)
Q7601 NG or
Laser pick-up NG
Laser pickup NG
Laser pick-up NG
Laser pick-up
position
Inner track limit
switch (S7201)
NG Open
Inner track limit
switch (S7201)
Short
Q7601
voltage
Change all non
CD functions to CD
CD functions to CD
Change all non
CD functions to CD
CD functions to CD
Not moving
Outer track, or middle
Inner track
NO
Above 0.2V
Above 0.4V
Above 0.6V
Below 0.2V
Below 0.4V
Below 0.6V
YES
YES
NO
NG
“L”
“H”
NG
NG
OK
OK
OK
OK
NG
NG
3
SC-EN37P / SC-EN37PC / SC-EN37EB / SC-EN37EG
FLE0706
Display