Sharp XL-UH25H Service Manual ▷ View online
XL-UH25H
–2
[4] Names Of Parts
Front panel
1. Disc Compartment
2. Timer Indicator
3. ON/STAND-BY Button
4. Function Button
5. Volume Control
6. Remote Sensor
7. Stop Button
8. Play/Pause Button
9. Headphone Socket
10. Audio In Socket
11. USB Terminal
2. Timer Indicator
3. ON/STAND-BY Button
4. Function Button
5. Volume Control
6. Remote Sensor
7. Stop Button
8. Play/Pause Button
9. Headphone Socket
10. Audio In Socket
11. USB Terminal
2
3
4
5
5
6
7
8
8
9
10
11
1
Display
1. Sleep Indicator
2. Memory Indicator
3. Disc or USB Repeat Play Indicator
4. CD Indicator
5. USB Indicator
6. MP3 Indicator
7. WMA Indicator
8. Timer Play Indicator
9. Daily Timer Indicator
10. MP3/WMA Folder Indicator
11. MP3/WMA Title Indicator
12. Disc or USB Random Indicator
13. Disc or USB Total Indicator
14. Extra Bass Indicator
15. Disc or USB Play Indicator
16. Disc or USB Pause Indicator
17. FM Stereo Mode Indicator
18. FM Stereo Receiving Indicator
19. Tuner Receiving Frequency Indicator
2. Memory Indicator
3. Disc or USB Repeat Play Indicator
4. CD Indicator
5. USB Indicator
6. MP3 Indicator
7. WMA Indicator
8. Timer Play Indicator
9. Daily Timer Indicator
10. MP3/WMA Folder Indicator
11. MP3/WMA Title Indicator
12. Disc or USB Random Indicator
13. Disc or USB Total Indicator
14. Extra Bass Indicator
15. Disc or USB Play Indicator
16. Disc or USB Pause Indicator
17. FM Stereo Mode Indicator
18. FM Stereo Receiving Indicator
19. Tuner Receiving Frequency Indicator
Rear panel
1. FM 75 Ohms Aerial Socket
2. AC Power Lead
3. Speaker Terminals
2. AC Power Lead
3. Speaker Terminals
Speaker system
15
17
18
18
1
2
3 4
5
10 11
12
13
14
6
7
8 9
16
19
1
2
3
1. Full Range
2. Speaker Wire
3. Bass Reflex Duct
2. Speaker Wire
3. Bass Reflex Duct
2
3
1
1 – 3
XL-UH25H
– 4
Remote control
1. Remote Control Transmitter
2. Clear/Dimmer Button
3. Disc Stop Button
4. Play Mode Button
5. USB Stop Button
6. Clock/Timer Button
7. Direct Search Buttons
8. Bass/Treble Button
9. Extra Bass/Demo Button
2. Clear/Dimmer Button
3. Disc Stop Button
4. Play Mode Button
5. USB Stop Button
6. Clock/Timer Button
7. Direct Search Buttons
8. Bass/Treble Button
9. Extra Bass/Demo Button
10. Memory Button
11. On/Stand-by Button
12. Tuner Button
13. CD Button
14. Disc Play and Pause Button
15. USB Play and Pause Button
16. Audio In/USB Button
17. Tuning Up, Folder Up Button
18. Track Up or Fast Forward, Tuner Preset Up,
11. On/Stand-by Button
12. Tuner Button
13. CD Button
14. Disc Play and Pause Button
15. USB Play and Pause Button
16. Audio In/USB Button
17. Tuning Up, Folder Up Button
18. Track Up or Fast Forward, Tuner Preset Up,
Time Up Button
19. Track Down or Fast Reverse, Tuner Preset Down,
Time Down Button
20. Tuning Down, Folder Down Button
21. MP3/WMA Folder Button
22. MP3/WMA Display Button
23. Volume Up and Down Buttons
21. MP3/WMA Folder Button
22. MP3/WMA Display Button
23. Volume Up and Down Buttons
1
2
3
4
5
6
7
8
9
9
12
13
13
14
15
15
11
10
16
22
23
23
21
17
18
20
19
1 – 4
XL-UH25H
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
XL-UH25H
2 – 2
[2] Test Mode
• Setting the test mode
During AC unplug, plug-in AC while pressing down the
ON/STAND-BY button and FUNCTION button. Turn
volume knob to enter the CD test mode. Then, press
STOP button to enter CD TEST.
• Setting the test mode
During AC unplug, plug-in AC while pressing down the
ON/STAND-BY button and FUNCTION button. Turn
volume knob to enter the CD test mode. Then, press
STOP button to enter CD TEST.
IL isn’t done
OPEN/CLOSE operation is using manual.
IL isn’t done
C D
T E S T
Laser ON.
Focus ON
CLV Servo ON
<<STOP>> key input.
<<STOP>> key input.
1
Step
2
Step
3
Step
4
Step
5
Step
Tracking Servo ON
Reading Sub-code and Display
STOP and return to Step 1
Hold down << USB >> key for more than 2 sec.
Start Auto Adjustment at current pick-up location.
<<
>> key input. CD indicator light up.
/
<<
>> key input. CD and USB indicator light up.
/
<<
>> key input. CD, USB, iPOD and MP3 indicator light up.
/
<<
>> key input. CD, USB, iPOD and MP3 and WMA indicator light up.
/
<<
>> key input. CD, USB and iPOD indicator light up.
/
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