DOWNLOAD Sharp XL-560E (serv.man2) Service Manual ↓ Size: 3.05 MB | Pages: 64 in PDF or view online for FREE

Model
XL-560E (serv.man2)
Pages
64
Size
3.05 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
xl-560e-sm2.pdf
Date
PREV: Sharp XL-560E User Manual / Operation Manual

Sharp XL-560E (serv.man2) Service Manual ▷ View online

– 37 –
XL-560H/E,570H/E
Make sure that the disc is normal, and set the CD TEST MODE (STEP 1).
Is the measured voltage as specified in circuit diagram?
Check the main unit power supply circuit.
No
Yes
No
Is "PU ERROR" displayed"?
Yes
Move the pickup to most internal circumference side of
Turn the power off and reset the CD TEST MODE (STEP 1).
Is "PU ERROR " not displayed?
Yes
Check the PWB pattern between pin 45 (CD RES) of IC701 and
pin 100 (/RST) of IC802.
No
Is +5V applied to pin 100 (/RST) of IC802?
Yes
Is CD Lid switch SW701
ON condition ?
No
Does the CD TEST MODE advance from "STEP 2"?
Yes
Check the between pattern IC701 and SW701 If OK.
Check the main unit power supply circuit.
No
Does the laser come on in CD TEST MODE "STEP 2"?
Check the procedure in "LASER FAILURE".
Yes
Does the CD TEST MODE advance from "STEP 3" to "STEP
4"?
Check the procedure in "FOCUS FAILURE".
Yes
Yes
Does the spindle motor rotate normally when the CD TEST
MODE changes from "STEP 4" to "STEP 3"?
Yes
Is the HF output on pin 38 of IC802 in CD TEST MODE "STEP 5"?
Check the procedure "HF ERROR".
Yes
No
No
No
No
Check the pattern between pin 57 (PUIN) of IC701 and BI803/
CNS803.
Check the between BI803/CNS803 and PU-IN switch.
Set ON condition the CD
Lid switch.
Check the procedure in "SPINDLE MOTOR CLV SERVO
FAILURE".
No
Does the sled motor
move ?
No
Does the sound heard when the optical pickup move to the
selected play by the FF/REW key.
Check the procedure "NO SOUND"
No
Yes
Check the procedure in
"SLED MOTOR
OPERATING FAILURE ".
Does the LCD track number and time indicator work properly ?
Check the pattern between IC701 and LCD701.
Yes
No
Is "PU ERROR
"displayed ?
No
Turn the power off and then back on.
Does the unit initialize properly and start playback when PLAY
key is pressed?
Check the pattern between pin 57 (PUIN) of IC701 and
BI803/CNS803.
Check the between BI803/CNS803 and PU-IN switch.
No
Yes
Is "PU ERROR" displayed?
Check the procedure in "HF ERROR".
Yes
Yes
Does the unit play in order in the FF mode?
Check the procedure in "TRACK SEARCH FAILUR".
Yes
Does playback continue for 30 seconds after the start of
playback ?
Check the procedure in "SLED SERVO FAILURE".
Yes
Normal
No
No
Yes
XL-560H/E,570H/E
– 38 –
• Laser failure.
Is 0V applied to the pin 57 (SEL) of IC802 ?
Yes
No
Does the laser come on when pattern cut between pin 8 (SEL) of
IC801 and pin 57 (SEL) of IC802 ?
Check the PWB pattern between IC701 and IC802 (BUCK/CCE/
BUS0~3)
Yes
Yes
No
Check the peripheral parts of IC801 and Q801. If it is normal, the
optical pickup is faulty.
No
Check BI802/CNS802. 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 ouput at the pin 43 (FEI) of IC802
when the disc is set?
Is the waveform shown above input at the pin 44 (SBAD) of
IC802?
Yes
Yes
No
No
The optical pickup is faulty.
Check as stated in item "FOCUS SERVO SAWTOOTH WAVE
FAILURE".
Yes
Check the periphery of IC801 and BI802/CNS802. Is it normal?
No
Check the pattern between pin 13 of IC801 and pin 44 of IC802.
Check the periphery of IC801 and BI802/CNS802.
IC801 is faulty.
Yes
Is +6.2V applied to the emiter of Q861 ?
Is +5V applied to the collector of Q861 ?
Yes
No
No
Check the PWB pattern between pin 16 of CNS602 and emiter of
Q861.
Check the peripheral parts of IC804 and Q861.
Is +5V applied to the pin 62 (VDD) of IC802 ?
Is +5V applied to the pin 1 (VCC) of Ic801 ?
Yes
No
No
Check the PWB pattern between collector of Q861 and pin 62 of
IC802.
Check the PWB pattern between collector of Q861 and pin 1 of
IC801.
pin 43
(FEI)
pin 48
(FOO)
pin 44
(SBAD)
Yes
Yes
– 39 –
XL-560H/E,570H/E
• Focus servo sawtooth wave failure.
Is +6.2V applied to the pins 1 and 30 (VCC) of IC804 ?
 
Is sawtooh wave output to the pin 48 (FOO) of IC802 ?
IC802 is faulty.
No
Yes
Yes
Is sawtooth wave obtained between pins 25 and 26 of IC804 ?
No
No
Check the PWB pattern
between pin 2 of IC804
and pin 58 (CD STB) of
IC701.
Is +5V applied to the pin 2
(MUTE) of IC804 ?
Check the PWB pattern between pin 48 (FOO) of IC802 and pins
27 and 28 of IC804.  If OK.  IC804 is faulty.
Check the PWB pattern between pin 16 of CNS602 and IC804.
No
Is sawtooth wave obtained between pins 3 and 4 of BI801/
CNS801 ?  (as shown above)
Yes
Check the PWB pattern between BI801/CNS801 and IC804.
No
BI801/CNS801 connection failure or optical pickup failure.
Yes
• Spindle motor clv servo  failure.
Is above wave obtained between pins 5 and 6 of IC804 ?
Is following wave output to the pin 55 (DMO) of IC802 when
the CD TEST MODE "STEP 3" is changed to " STEP 4" ?
No
Yes
Check the procedure in "HF ERROR".
If OK.  IC802 is faulty.
Check the PWB pattern between pin 55 (DMO) of IC802 and pins
5 and 6 of IC804.  If OK.  IC804 is faulty.
No
Is above wave obtained between pins 5 and 6 of BI801/
CNS801 ?
Yes
Check the PWB pattern between BI801/CNS801 and IC804.
No
BI801/CNS801 connection failure or optical pickup failure.
Yes
DMO
Yes
1.5~2.5sec
1.5~2.5sec
XL-560H/E,570H/E
– 40 –
• HF error.
Yes
Yes
Is output (tracking error signal) obtained at the pins 46 (TEI)
and 47 (TEZI) of IC802 the CD TEST MODE "STEP 4" is
changed to "STEP 5"?
Is output (HF signal) obtained at the pin 38 (RFI) of IC802
when the CD TEST MODE "STEP 4" is changed to "STEP 5"?
Is output (HF signal) obtained at the pins 41 (RFZI) and 42
(RFRP) of IC802 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 +4.5V applied to pin 83 (DVDD) of IC802?
No
Check the PWB pattern between pin 50 (TEO) of IC802 and pin 18
of IC804.
Check the periphery of IC804 and BI801/CNS801.
If OK.  Optical pickup failure.
Check the periphery of IC801.
Check the PWB pattern between pin17 (RFRP) of IC801 and pins
41 (RFZI) and 42 (RFRP) of IC802.
If OK.  IC801 is faulty.
No
Yes
Normal.
Check the interval between the pins 82 or 85 of IC802 and the pins
1 or 3 IC601.
No
Check the PWB pattern between R819 and Q861.
Yes
Is signal of pins 82 and 85 of IC802 output?
No
Check the peripheral parts of IC802. If OK, IC802 is faulty.
Yes
The main PWB is faulty.
Check the periphery of IC801.
Check the PWB pattern between
pin 12.
(TEO) of IC801 and pins 46 and 47
of IC802.
Is it normal ?
Is output obtained at the pins 2 and
5 of BI802/CNS802
Optical pickup failure.
IC801 is faulty.
Check the periphery of IC801.
Check the PWB pattern between pin 19 (RFGO) of IC801 and pins
38 (RFI) of IC802.
If OK.  IC801 is faulty
Is output obtained at the pins 1 and
3, 4 of BI802/CNS802.
Optical pickup failure.
Is the following wave output to the pin 55 (DMO) of IC802
when the CD TEST MODE "STEP 4" or  "STEP 5"?
Check the periphery pins 28~32 of IC802.
If OK.  IC802 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
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