DOWNLOAD Sharp XL-T200 (serv.man14) Service Manual ↓ Size: 57.24 KB | Pages: 6 in PDF or view online for FREE

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

– 31 –
XL-T200H
Check the PWB pattern between emitter of Q605 and R826.
• Laser failure.
Is 0V applied to the pin 38 (SEL) of IC801 ?
Yes
No
Does the laser come on when pattern cut between pin 8 (SEL) of
IC802 and pin 38 (SEL) of IC801 ?
Check the PWB pattern between IC701 and IC801 (BUCK/CCE/
BUS0~3)
Yes
Yes
No
Check the peripheral parts of IC802 and Q801. If it is normal, the
optical pickup is faulty.
No
Check CNP801/CNW801. If it is normal, the optical pickup is
faulty.
Is approx. 2V applied to the collector of Q801.
• Focus failure.
Does the optical pickup move up and down when the disc is
removed?
Is the following waveform output at the pin 29 (FEI) of IC801
when the disc is set?
Is the waveform shown above input at the pin 30 (SBAD) of
IC801?
Yes
Yes
No
No
The optical pickup is faulty.
Check as stated in item "FOCUS SERVO SAWTOOTH WAVE
FAILURE".
Yes
Check the periphery of IC802 and CNP801/CNW801. Is it normal?
No
Check the pattern between pin 12 of IC802 and pin 30 of IC801.
Check the periphery of IC802 and CNP801/CNW801.
IC802 is faulty.
Yes
Is +6.8V applied to the emitter of Q605 ?
Is +5V applied to the cathode side of ZD801 ?
Yes
No
No
Check the peripheral parts of ZD801,C820 and C821.
Is +5V applied to the pin 64 (VDD) of IC801 ?
Is +3.3V applied to the pin 1 (VCC) of IC802 ?
Yes
No
No
Check the PWB pattern between cathode side of ZD801 and pin
64 of IC801.
Check the PWB pattern between collector of Q802 and pin 1 of
IC802.
pin 29
(FEI)
pin 33
(FOO)
pin 30
(SBAD)
Yes
Yes
XL-T200H
– 32 –
• Focus servo sawtooth wave failure.
Is +6.8V applied to the pins 21 and 22 (VCC) of IC803 ?
 
Is sawtooh wave output to the pin 33 (FOO) of IC801 ?
IC801 is faulty.
No
Yes
Yes
Is sawtooth wave obtained between pins 17 and 18 of IC803 ?
No
No
Check the PWB pattern
between pin 7 of IC803
and pin 66 (CD STB) of
IC701.
Is +5V applied to the pin 7
(MUTE) of IC803 ?
Check the PWB pattern between pin 33 (FOO) of IC801 and pins
19 and 20 of IC803.  If OK.  IC803 is faulty.
Check the PWB pattern between pin emitter of Q605 and IC803.
No
Is sawtooth wave obtained between pins 13 and 16 of
CNP801/CNW801 ?  (as shown above)
Yes
Check the PWB pattern between CNP801/CNW801 and IC803.
No
CNP801/CNW801 connection failure or optical pickup failure.
Yes
• Spindle motor clv servo  failure.
Is above wave obtained between pins 1 and 2 of IC803 ?
Is following wave output to the pin 41 (DMO) of IC801 when
the CD TEST MODE "STEP 3" is changed to " STEP 4" ?
No
Yes
Check the procedure in "HF ERROR".
If OK.  IC801 is faulty.
Check the PWB pattern between pin 41 (DMO) of IC801 and pins
9 and 10 of IC803.  If OK.  IC803 is faulty.
No
Is above wave obtained between pins 9 and 12 of CNP801/
CNW801 ?
Yes
Check the PWB pattern between CNP801/CNW801 and IC803.
No
CNP801/CNW801 connection failure or optical pickup failure.
Yes
DMO
Yes
1.5~2.5sec
1.5~2.5sec
– 33 –
XL-T200H
• HF error.
Yes
Yes
Is output (tracking error signal) obtained at the pins 31 (TEI)
and 32 (TEZI) of IC801 the CD TEST MODE "STEP 4" is
changed to "STEP 5"?
Is output (HF signal) obtained at the pin 24 (RFI) of IC801
when the CD TEST MODE "STEP 4" is changed to "STEP 5"?
Is output (HF signal) obtained at the pins 27 (RFZI) and 28
(RFRP) of IC801 when the CD TEST MODE "STEP 4" is
changed to "STEP 5"?
No
No
• No sound.
No sound from both L and R-ch?
Yes
Is +3.3V applied to pin 51 (DVDD) of IC801?
No
Check the PWB pattern between pin 34 (TRO) of IC801 and pin 25
of IC803.
Check the periphery of IC803 and CNP801/CNW801.
If OK.  Optical pickup failure.
Check the periphery of IC802.
Check the PWB pattern between pin17 (RFRP) of IC802 and pins
27 (RFZI) and 28 (RFRP) of IC801.
If OK.  IC802 is faulty.
No
Yes
Normal.
Check the interval between the pins 50 or 53 of IC801 and the pins
1 or 10 of IC601.
No
Check the PWB pattern between pin 51 of IC801 and Q803.
Yes
Is signal of pins 50 and 53 of IC801 output?
No
Check the peripheral parts of IC801. If OK, IC801 is faulty.
Yes
The main PWB is faulty.
Check the periphery of IC802.
Check the PWB pattern between
pin 11 (TEO) of IC802 and pins 31
and 32 of IC801.
Is it normal ?
Is output obtained at the pins 3 and
8 of CNP801/CNW801.
Optical pickup failure.
IC802 is faulty.
Check the periphery of IC802.
Check the PWB pattern between pin 19 (RFGO) of IC802 and pins
24 (RFI) of IC801.
If OK.  IC802 is faulty
Is output obtained at the pins 4 and
5,6 of CNP801/CNW801.
Optical pickup failure.
Is the following wave output to the pin 41 (DMO) of IC801
when the CD TEST MODE "STEP 4" or  "STEP 5"?
Check the periphery pins 15~19 of IC801.
If OK.  IC801 failure.
No
No
No
Yes
Yes
No
Yes
Yes
test mode "step 4"
test mode "step 5"
TEI
TEZI
test mode "step 4"
test mode "step 5"
RFI
test mode "step 4"
test mode "step 5"
RFZI
RFRP
test mode "step 4"
test mode "step 5"
DMO
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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Sharp XL-T200 (serv.man14) Service Manual ▷ Download

  • DOWNLOAD Sharp XL-T200 (serv.man14) Service Manual ↓ Size: 57.24 KB | Pages: 6 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp XL-T200 (serv.man14) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp XL-T200 (serv.man14) System. Information contained in Sharp XL-T200 (serv.man14) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.