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Model
XL-T200 (serv.man14)
Pages
6
Size
57.24 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Troubleshooting
File
xl-t200-sm14.pdf
Date

Sharp XL-T200 (serv.man14) Service Manual ▷ View online

XL-T200H
– 34 –
• Sled motor operation failure.
Yes
Yes
Is following sled feed signal output the pin 40 (FMO) of IC801
when FF 
 /REW 
 key is pressed after the CD TEST
MODE "STEP 1" is set?
Is sled feed signal output the pins 1 and 2 of IC803?
Is sled feed voltage applied between both terminals of sled
motor?
No
Check the peripheral parts of IC803. If OK, IC803 is faulty.
No
C801 is faulty.
Check the CNW802.
No
Yes
Check the CD mechanism (periphery of sled motor).
If the sled motor does not run when DC2.0V is applied to
both terminals of sled motor, the sled motor is faulty.
• Sled servo failure.
Yes
Is following sled signal output the pin 40 (FMO) of IC801
during playback?
Normal.
No
IC801 is faulty.
• Track search failure
Does the sled motor run in FF/REW state when the SERVO
TEST MODE "STEP1" is set?
Is the following wave output to the pin 34 (TRO) of IC801
during track search in normal playback?
Is the following wave output to the pins 11 (TEO) of IC802
during track search in normal playback?
Yes
Yes
No
Check as stated in item "SLED MOTOR OPERATION FAILURE".
No
IC801 failure.
No
Check the PWB pattern between pin 34 (TRO) of IC801 and pin
25 of IC803.
Check the PWB pattern between pins 26 and 27 of IC803 and
Optical pickup.
If OK.  Optical pickup failure.
Yes
Is the above wave output to the pins 31 (TEI) and 32 (TEZI) of
IC801 during track search in normal playback?
No
Check the PWB pattern between pin 11 (TEO) of IC802 and pins 31
and 32 of IC801.  If OK. IC802 failure.
Normal.
Yes
Yes
Is following sled feed signal output the pins 3 and 4 of IC803
when FF 
 /REW 
 key is pressed after the CD TEST
MODE "STEP 1" is set?
Check the PWB pattern between pin 40 of IC801 and pins 3 and 4
of IC803.
No
Is the following wave output to the pin 27 (RFZI) and 28
(RFRP) of IC801 during track search in normal playback?
No
Check the PWB pattern between pins 22 (RFO),17 (RFRP), 19
(RFGO) and 20 (RFGC) of IC802 and pins 24,27,28 and 36 of IC801.
If OK. IC802 failure.
Yes
TRO
TEO
TEI
TEZI
FF
REW
FMO
FMO
RFZI
RFRP
FF
REW
SL 
±
XL-T200H
– 34 –
• Sled motor operation failure.
Yes
Yes
Is following sled feed signal output the pin 40 (FMO) of IC801
when FF 
 /REW 
 key is pressed after the CD TEST
MODE "STEP 1" is set?
Is sled feed signal output the pins 1 and 2 of IC803?
Is sled feed voltage applied between both terminals of sled
motor?
No
Check the peripheral parts of IC803. If OK, IC803 is faulty.
No
C801 is faulty.
Check the CNW802.
No
Yes
Check the CD mechanism (periphery of sled motor).
If the sled motor does not run when DC2.0V is applied to
both terminals of sled motor, the sled motor is faulty.
• Sled servo failure.
Yes
Is following sled signal output the pin 40 (FMO) of IC801
during playback?
Normal.
No
IC801 is faulty.
• Track search failure
Does the sled motor run in FF/REW state when the SERVO
TEST MODE "STEP1" is set?
Is the following wave output to the pin 34 (TRO) of IC801
during track search in normal playback?
Is the following wave output to the pins 11 (TEO) of IC802
during track search in normal playback?
Yes
Yes
No
Check as stated in item "SLED MOTOR OPERATION FAILURE".
No
IC801 failure.
No
Check the PWB pattern between pin 34 (TRO) of IC801 and pin
25 of IC803.
Check the PWB pattern between pins 26 and 27 of IC803 and
Optical pickup.
If OK.  Optical pickup failure.
Yes
Is the above wave output to the pins 31 (TEI) and 32 (TEZI) of
IC801 during track search in normal playback?
No
Check the PWB pattern between pin 11 (TEO) of IC802 and pins 31
and 32 of IC801.  If OK. IC802 failure.
Normal.
Yes
Yes
Is following sled feed signal output the pins 3 and 4 of IC803
when FF 
 /REW 
 key is pressed after the CD TEST
MODE "STEP 1" is set?
Check the PWB pattern between pin 40 of IC801 and pins 3 and 4
of IC803.
No
Is the following wave output to the pin 27 (RFZI) and 28
(RFRP) of IC801 during track search in normal playback?
No
Check the PWB pattern between pins 22 (RFO),17 (RFRP), 19
(RFGO) and 20 (RFGC) of IC802 and pins 24,27,28 and 36 of IC801.
If OK. IC802 failure.
Yes
TRO
TEO
TEI
TEZI
FF
REW
FMO
FMO
RFZI
RFRP
FF
REW
SL 
±
XL-T200H
– 34 –
• Sled motor operation failure.
Yes
Yes
Is following sled feed signal output the pin 40 (FMO) of IC801
when FF 
 /REW 
 key is pressed after the CD TEST
MODE "STEP 1" is set?
Is sled feed signal output the pins 1 and 2 of IC803?
Is sled feed voltage applied between both terminals of sled
motor?
No
Check the peripheral parts of IC803. If OK, IC803 is faulty.
No
C801 is faulty.
Check the CNW802.
No
Yes
Check the CD mechanism (periphery of sled motor).
If the sled motor does not run when DC2.0V is applied to
both terminals of sled motor, the sled motor is faulty.
• Sled servo failure.
Yes
Is following sled signal output the pin 40 (FMO) of IC801
during playback?
Normal.
No
IC801 is faulty.
• Track search failure
Does the sled motor run in FF/REW state when the SERVO
TEST MODE "STEP1" is set?
Is the following wave output to the pin 34 (TRO) of IC801
during track search in normal playback?
Is the following wave output to the pins 11 (TEO) of IC802
during track search in normal playback?
Yes
Yes
No
Check as stated in item "SLED MOTOR OPERATION FAILURE".
No
IC801 failure.
No
Check the PWB pattern between pin 34 (TRO) of IC801 and pin
25 of IC803.
Check the PWB pattern between pins 26 and 27 of IC803 and
Optical pickup.
If OK.  Optical pickup failure.
Yes
Is the above wave output to the pins 31 (TEI) and 32 (TEZI) of
IC801 during track search in normal playback?
No
Check the PWB pattern between pin 11 (TEO) of IC802 and pins 31
and 32 of IC801.  If OK. IC802 failure.
Normal.
Yes
Yes
Is following sled feed signal output the pins 3 and 4 of IC803
when FF 
 /REW 
 key is pressed after the CD TEST
MODE "STEP 1" is set?
Check the PWB pattern between pin 40 of IC801 and pins 3 and 4
of IC803.
No
Is the following wave output to the pin 27 (RFZI) and 28
(RFRP) of IC801 during track search in normal playback?
No
Check the PWB pattern between pins 22 (RFO),17 (RFRP), 19
(RFGO) and 20 (RFGC) of IC802 and pins 24,27,28 and 36 of IC801.
If OK. IC802 failure.
Yes
TRO
TEO
TEI
TEZI
FF
REW
FMO
FMO
RFZI
RFRP
FF
REW
SL 
±
XL-T200H
– 34 –
• Sled motor operation failure.
Yes
Yes
Is following sled feed signal output the pin 40 (FMO) of IC801
when FF 
 /REW 
 key is pressed after the CD TEST
MODE "STEP 1" is set?
Is sled feed signal output the pins 1 and 2 of IC803?
Is sled feed voltage applied between both terminals of sled
motor?
No
Check the peripheral parts of IC803. If OK, IC803 is faulty.
No
C801 is faulty.
Check the CNW802.
No
Yes
Check the CD mechanism (periphery of sled motor).
If the sled motor does not run when DC2.0V is applied to
both terminals of sled motor, the sled motor is faulty.
• Sled servo failure.
Yes
Is following sled signal output the pin 40 (FMO) of IC801
during playback?
Normal.
No
IC801 is faulty.
• Track search failure
Does the sled motor run in FF/REW state when the SERVO
TEST MODE "STEP1" is set?
Is the following wave output to the pin 34 (TRO) of IC801
during track search in normal playback?
Is the following wave output to the pins 11 (TEO) of IC802
during track search in normal playback?
Yes
Yes
No
Check as stated in item "SLED MOTOR OPERATION FAILURE".
No
IC801 failure.
No
Check the PWB pattern between pin 34 (TRO) of IC801 and pin
25 of IC803.
Check the PWB pattern between pins 26 and 27 of IC803 and
Optical pickup.
If OK.  Optical pickup failure.
Yes
Is the above wave output to the pins 31 (TEI) and 32 (TEZI) of
IC801 during track search in normal playback?
No
Check the PWB pattern between pin 11 (TEO) of IC802 and pins 31
and 32 of IC801.  If OK. IC802 failure.
Normal.
Yes
Yes
Is following sled feed signal output the pins 3 and 4 of IC803
when FF 
 /REW 
 key is pressed after the CD TEST
MODE "STEP 1" is set?
Check the PWB pattern between pin 40 of IC801 and pins 3 and 4
of IC803.
No
Is the following wave output to the pin 27 (RFZI) and 28
(RFRP) of IC801 during track search in normal playback?
No
Check the PWB pattern between pins 22 (RFO),17 (RFRP), 19
(RFGO) and 20 (RFGC) of IC802 and pins 24,27,28 and 36 of IC801.
If OK. IC802 failure.
Yes
TRO
TEO
TEI
TEZI
FF
REW
FMO
FMO
RFZI
RFRP
FF
REW
SL 
±
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