Sharp XL-UR250H (serv.man3) Service Manual ▷ View online
XL-UR250H
1 – 6
Remote control
1. Remote Control Transmitter
2. Disc Number Select Buttons
3. USB Recording Enter Button
4. USB Recording Mode Button
5. Clock/Timer Button
6. Disc Direct Search Buttons
7. Equaliser Mode Select Button
8. Extra Bass/Demo Button
9. On/Stand-by Button
10. CD Button
11. Tuner (Band) Button
12. Video/AUX/USB Button
13. MP3/WMA Folder Button
14. MP3/WMA Display Button
15. Volume Up and Down Buttons
16. Clear/Dimmer Button
17. Disc or USB Random Button
18. Disc Stop Button
19. USB Recording Button
20. USB Stop Button
21. Memory Button
22. Disc Pause Button
23. Disc Play and Repeat Button
24. USB Pause Button
25. USB Play and Repeat Button
26. Tuning Up Button
27. Disc Track Up or Fast Forward, Tuner Preset Up, Time Up Button
28. Disc Track Down or Fast Reverse, Tuner Preset Down, Time Down Button
29. Tuning Down Button
30. RDS ASPM Button
31. RDS PTY Button
32. RDS Display Button
2. Disc Number Select Buttons
3. USB Recording Enter Button
4. USB Recording Mode Button
5. Clock/Timer Button
6. Disc Direct Search Buttons
7. Equaliser Mode Select Button
8. Extra Bass/Demo Button
9. On/Stand-by Button
10. CD Button
11. Tuner (Band) Button
12. Video/AUX/USB Button
13. MP3/WMA Folder Button
14. MP3/WMA Display Button
15. Volume Up and Down Buttons
16. Clear/Dimmer Button
17. Disc or USB Random Button
18. Disc Stop Button
19. USB Recording Button
20. USB Stop Button
21. Memory Button
22. Disc Pause Button
23. Disc Play and Repeat Button
24. USB Pause Button
25. USB Play and Repeat Button
26. Tuning Up Button
27. Disc Track Up or Fast Forward, Tuner Preset Up, Time Up Button
28. Disc Track Down or Fast Reverse, Tuner Preset Down, Time Down Button
29. Tuning Down Button
30. RDS ASPM Button
31. RDS PTY Button
32. RDS Display Button
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1 – 4
XL-UR250H
2 – 1
CHAPTER 2.
ADJUSTMENTS
[1] CD Section
1. CD SECTION
• Adjustment
Since this CD system incorporates the following
automatic adjustment functions, readjustment is not
needed when replacing the pickup. Therefore,
different PWBs and pickups can be combined freely.
automatic adjustment functions, readjustment is not
needed when replacing the pickup. Therefore,
different PWBs and pickups can be combined freely.
Each time a disc is changed, these adjustments are
performed automatically. Therefore, playback of
each disc can be performed under optimum
conditions.
performed automatically. Therefore, playback of
each disc can be performed under optimum
conditions.
Items adjusted automatically
1) Offset adjustment (The offset voltage between the
head amplifier output and the VREF reference
voltage is compensated inside the IC.)
voltage is compensated inside the IC.)
* Focus offset adjustment
* Tracking offset adjustment
2) Tracking balance adjustment
3) Gain adjustment (The gain is compensated inside
the IC so that the loop gain at the gain crossover
frequency will be 0 dB.)
frequency will be 0 dB.)
* Focus gain adjustment
* Tracking gain adjustment
2. CD ERROR CODE DESCRIPTION
* 'CHECKING'
If Error is detected, 'CHECKING' will be displayed
instead of 'ER-CD**'. 'ER-CD**' display will only be
displayed when error had been detected for the 5
instead of 'ER-CD**'. 'ER-CD**' display will only be
displayed when error had been detected for the 5
th
times.
Error
Explanation
10*
CAM error. Can't detect CAM switch when CAM is moving.
11*
When it detect cam operation error during initialize process.
20*
TRAY error. Can't detect TRAY switch when TRAY is
moving.
moving.
21*
When it detect TRAY operation error during initialize
process.
process.
XL-UR250H
2 – 2
[2] Test Mode
• Setting the test mode
During stand-by mode, press STOP button while
pressing down the
• Setting the test mode
During stand-by mode, press STOP button while
pressing down the
button and
button. Then,
press the CD button to enter the test mode.
\
3
44
IL isn’t done
OPEN/CLOSE operation is using manual.
IL isn’t done
C D
T E S T
<<
>> key input.
Laser ON.
Focus ON
CLV Servo ON
<<STOP>> key input.
<<STOP>> key input.
1
Step
2
Step
3
Step
4
Step
5
Step
/
<<
>> key input.
/
<<
>> key input.
/
<<
>> key input.
/
<<
>> key input.
/
Tracking Servo ON
Reading Sub-code and Display
STOP and return to Step 1
Hold down << CD >> key for more than 2 sec.
Start Auto Adjustment at current pick-up location.
XL-UR250H
2 – 3
During at Step , if press << >> for more than 1 sec, it directly
goes to step .
goes to step .
To cancel: Power OFF
<<STOP>> key input.
a) Focus Balance
= FB : XX
b) Focus Gain
= FG : XX
c) Tracking Balance
= TB : XX
d) Tracking Gain
= TG : XX
e) Focus Offset
= FOFF : XX
f) Tracking Offset
= TOFF : XX
g) RFRP
= RFRP : XX
h) Focus Error
(RW Judgement)
(RW Judgement)
= RW : XX - XXXX
i) Focus Error
(Other than RW Judgement) = DA : XX - XXXX
(Other than RW Judgement) = DA : XX - XXXX
Sliding the PICKUP with << >>, << >> button can be set
in STOP mode or play mode.
in STOP mode or play mode.
/
STOP and return to Step 1
1
5
Note
STOP and return to Step 1
Everytime << DISPLAY >> key input
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