Sharp XL-DV50 (serv.man2) Service Manual ▷ View online
XL-DV50H
1 – 4
[4] NAMES OF PARTS
Front panel
1. Equaliser Mode Select Button
2. Extra Bass/Demo Mode Button
3. Timer Indicator
4. On/Stand-by Button
5. DVD/CD Button
6. Tuner (Band) Button
7. Video/Auxiliary Button
8. Disc Compartment
9. Headphone Socket
2. Extra Bass/Demo Mode Button
3. Timer Indicator
4. On/Stand-by Button
5. DVD/CD Button
6. Tuner (Band) Button
7. Video/Auxiliary Button
8. Disc Compartment
9. Headphone Socket
10. Remote Sensor
11. Stop or Tuning Down Button
12. Play or Tuning Up Button
13. Chapter (Track) Skip Down or Fast Reverse,
11. Stop or Tuning Down Button
12. Play or Tuning Up Button
13. Chapter (Track) Skip Down or Fast Reverse,
Tuner Preset Down Button
14. Chapter (Track) Skip Up or Fast Forward,
Tuner Preset Up Button
15. Memory/Set Button
16. Disc Compartment Open/Close Button
17. Disc Number Select Buttons
18. Volume Control
16. Disc Compartment Open/Close Button
17. Disc Number Select Buttons
18. Volume Control
Display
1. Disc Number Indicators
2. Play Indicator
3. Pause Indicator
4. Repeat Play Indicators
5. Disc Type Indicators
6. Extra Bass Indicator
7. Traffic Programme Indicator
8. RDS Indicator
9. Traffic Announcement Indicator
2. Play Indicator
3. Pause Indicator
4. Repeat Play Indicators
5. Disc Type Indicators
6. Extra Bass Indicator
7. Traffic Programme Indicator
8. RDS Indicator
9. Traffic Announcement Indicator
10. Sound Mode Indicators
11. Memory Indicator
12. Angle Indicator
13. Surround Mode Indicator
14. Sleep Indicator
15. FM Stereo Mode Indicator
16. FM Stereo Receiving Indicator
17. Timer Play Indicator
11. Memory Indicator
12. Angle Indicator
13. Surround Mode Indicator
14. Sleep Indicator
15. FM Stereo Mode Indicator
16. FM Stereo Receiving Indicator
17. Timer Play Indicator
10
18
11
12
13
14
15
16
17
3
2
1
4
5
6
8
7
9
10
17
15 16
11
12
14
13
4
8
9
1
2
3
5
6
7
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Rear panel
1. AC Power Input Socket
2. Speaker Terminals
3. SCART Output Socket
4. Cooling Fan
5. FM 75 Ohms Aerial Socket
6. AM Loop Aerial Socket
7. Video/Auxiliary (Audio Signal) Input Sockets
8. Video Output Socket
9. S-video Output Socket
2. Speaker Terminals
3. SCART Output Socket
4. Cooling Fan
5. FM 75 Ohms Aerial Socket
6. AM Loop Aerial Socket
7. Video/Auxiliary (Audio Signal) Input Sockets
8. Video Output Socket
9. S-video Output Socket
10. Optical Digital Audio Output Socket
Front speaker
1. Tweeter
2. Woofer
3. Bass Reflex Duct
4. Speaker Wire
2. Woofer
3. Bass Reflex Duct
4. Speaker Wire
Subwoofer
1. Sub Duct Pipe
2. Subwoofer
3. Speaker Wire
2. Subwoofer
3. Speaker Wire
1
3
6
7
4
8
5
9
10
10
3
3
4
2
1
2
1
2
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XL-DV50H
1 – 5
Remote control
1. Remote Control Transmitter
2. DVD Setup Button
3. On/Stand-by Button
4. RDS Display Mode Select Button
5. RDS Programme Type/Traffic Information Search Button
6. RDS ASPM (Auto Station Programme Memory) Button
7. Direct Number Buttons
8. Chapter (Track) Skip Down or Fast Reverse,
2. DVD Setup Button
3. On/Stand-by Button
4. RDS Display Mode Select Button
5. RDS Programme Type/Traffic Information Search Button
6. RDS ASPM (Auto Station Programme Memory) Button
7. Direct Number Buttons
8. Chapter (Track) Skip Down or Fast Reverse,
Tuner Preset Down, Time Down Button
9. Cursor Buttons
10. Zoom or Audio Select Button
11. Repeat Play Button
12. Frame Advance or Pause Button
13. A - B Repeat Button
14. Memory/Set Button
15. Top Menu or Return Button
16. Subtitle or Surround Mode Select Button
17. Shift Button
18. Extra Bass or Digital Picture Select Button
19. DVD/CD Button
20. Equaliser Mode Select or Digital Gamma Button
21. Tuner (Band) Button
22. Menu or On Screen Display Select Button
23. Disc Number Select Buttons
24. Direct Button
25. Chapter (Track) Skip Up or Fast Forward,
11. Repeat Play Button
12. Frame Advance or Pause Button
13. A - B Repeat Button
14. Memory/Set Button
15. Top Menu or Return Button
16. Subtitle or Surround Mode Select Button
17. Shift Button
18. Extra Bass or Digital Picture Select Button
19. DVD/CD Button
20. Equaliser Mode Select or Digital Gamma Button
21. Tuner (Band) Button
22. Menu or On Screen Display Select Button
23. Disc Number Select Buttons
24. Direct Button
25. Chapter (Track) Skip Up or Fast Forward,
Tuner Preset Up, Time Up Button
26. Enter Button
27. Angle or NTSC/PAL Select Button
28. Play Button
29. Stop Button
30. Random Button
31. Clear Button
32. Timer/Sleep Button
33. Clock Button
34. Video/Auxiliary Button
35. Volume or Subwoofer Level Up and Down Buttons
27. Angle or NTSC/PAL Select Button
28. Play Button
29. Stop Button
30. Random Button
31. Clear Button
32. Timer/Sleep Button
33. Clock Button
34. Video/Auxiliary Button
35. Volume or Subwoofer Level Up and Down Buttons
1
2
29
28
30
31
32
33
31
32
33
35
34
27
26
25
24
23
22
8
9
10
11
12
13
14
15
16
13
14
15
16
17
18
19
19
20
21
3
7
4
5
6
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XL-DV50H
2 – 1
Audio
XL-DV50H
Service Manual
XLDV50H
Market
E
CHAPTER 2.
ADJUSTMENTS
[1] ADJUSTMENT
1. TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
• AM IF/RF
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
• Check FM VT
Signal generator: 1 kHz, 40 kHz dev., FM modulated
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
2. DVD/CD SECTION
• Adjustment
Since this DVD/CD system incorporates the following automatic
adjustment functions, readjustment is not needed when replacing
the pickup. Therefore, different PWBs and pickups can be com-
bined freely.
adjustment functions, readjustment is not needed when replacing
the pickup. Therefore, different PWBs and pickups can be com-
bined freely.
Each time a disc is changed, these adjustments are performed
automatically. Therefore, playback of each disc can be performed
under optimum conditions.
automatically. Therefore, playback of each disc can be performed
under optimum conditions.
Test Stage
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
IF
450 kHz
1,620 kHz
T351
*1
AM Band
Coverage
Coverage
—
522 kHz
(fL): T306
1.1 ± 0.1 V
1.1 ± 0.1 V
*2
AM Tracking
990 kHz
990 kHz
T302
*3
*1. Input: Antenna
Output: TP302
*2. Input: Input is not connected
Output: TP301
Frequency
Display
Check
Point
Instrument
Connection
87.5 MHz
87.5 MHz
2.2V ± 1.0V
TP-VT
108 MHz
108 MHz
7.8V ± 1.0V
TP-VT
Frequency
Display
Adjusting
Parts
Instrument
Connection
98.00 MHz
(30 dB
(30 dB
µV)
98.00 MHz
VR351
Input: Antenna
Output: Speaker Terminal
Output: Speaker Terminal
Figure 1 ADJUSTMENT POINTS
CNP301
FE301
SO301
T302
AM
Tracking fL
AM BAND
COVERAGE fL
T306
T351
AM IF
FM MUTE
LEVEL
VR351
IC303
IC302
20
C393
TP301
TP302
R350
R357
R356
TUNER PWB-A2
XL-DV50H
2 – 2
[2] TEST MODE
The test mode applied to this microcomputer has three modes, namely
the ordinary test mode for adjustment or measurement, the aging test
mode, and the self-diagnosis test mode for self-judgment in case of
final product inspection.
the ordinary test mode for adjustment or measurement, the aging test
mode, and the self-diagnosis test mode for self-judgment in case of
final product inspection.
1. Turning on the test mode
For obtaining each test mode, press the ON/STAND BY button, while
keeping pressing the following two buttons in the ordinary stand-by
mode (power off). In this case, the main unit buttons are valid. When
turning the POWER on with remote control buttons, test modes are not
obtained.
keeping pressing the following two buttons in the ordinary stand-by
mode (power off). In this case, the main unit buttons are valid. When
turning the POWER on with remote control buttons, test modes are not
obtained.
[Ordinary test mode]
[Self-diagnosis Test Mode]
Processes are different depending on destinations at initial settings.
2. Tuner Test Mode (TEST 2)
1. Outline of tuner (radio) test mode
The tuner test mode is intended to store the adjustment and mea-
surement frequencies in the preset memory CH. When adjusting
the tuner section in the production line, adjusting personnel are not
required to set frequency.
surement frequencies in the preset memory CH. When adjusting
the tuner section in the production line, adjusting personnel are not
required to set frequency.
2. Details of tuner test mode
Press the "TUNER(BAND)" and "VOLUME UP" buttons in POWER
OFF state and turn on the power by the use of "ON/STAND BY"
button to preset and store frequency for adjustment and measure-
ment of destination specified by the AREA terminal in the preset
memory CH. However, Ordinary 1 and Ordinary 2 are stored in the
destinations when the test mode is obtained.
OFF state and turn on the power by the use of "ON/STAND BY"
button to preset and store frequency for adjustment and measure-
ment of destination specified by the AREA terminal in the preset
memory CH. However, Ordinary 1 and Ordinary 2 are stored in the
destinations when the test mode is obtained.
(As for frequencies to be preset and stored for each destination, refer
to item 3.)
to item 3.)
The tuner test mode is started from preset No.1.
The operations of test mode are identical with the ordinary operations
of TUNER function. FUNCTION switching is invalid.
of TUNER function. FUNCTION switching is invalid.
It is necessary to discard the content of preset memory when the tuner
test mode is ended; be sure to write "0000" or "1111" bits in the mem-
ory to be checked for judging memory error at initial setting and to ini-
tialize memory.
test mode is ended; be sure to write "0000" or "1111" bits in the mem-
ory to be checked for judging memory error at initial setting and to ini-
tialize memory.
When the tuner test mode is obtained, the following display lights for
one second.
one second.
• The TUNER TEST 2 mode is obtained with >> + MEMORY/SET +
ON/STAND-BY. ->Turn off AC in the TEST 2 mode to restore the
initial state.
initial state.
Turn off POWER to protect the memory of TEST 2 mode.
Turn off POWER again to obtain the ordinary operation while the
data is stored in the memory (besides TUNER).
data is stored in the memory (besides TUNER).
If AC OFF state is maintained in this state for about 1/2 day, start is
executed in the initial state.
executed in the initial state.
• To clear the whole memory, insert the AC cord, pressing MEM-
ORY/SET + PLAY.
3. Preset frequencies for various destinations
(random preset memory)
• The slant line sections of the table store no memory.
3. Electronic volume Test Mode (TEST 3)
When this test mode is obtained, the following display lights for one
second.
second.
In this mode, volume is Volume -14 dB (STEP 23), FLAT AND X-BASS
ON, and start-up function to DVD/CD, respectively. The button opera-
tions in the test mode are the same as those of ordinary operation
except volume UP/DOWN.
ON, and start-up function to DVD/CD, respectively. The button opera-
tions in the test mode are the same as those of ordinary operation
except volume UP/DOWN.
1) The display is the same as that of ordinary operation except test
mode setting.
2) Unlike the ordinary state, the volume is controlled with the volume
UP/DOWN button in accordance with the following three steps.
Volume-
∞ (STEP 0) <-> Volume-14 dB (STEP 23) <-> Volume-0
(STEP 30)
3) X-BASS is switched when button is pressed.
1. Tuner Test Mode (TEST 2)........................................................
TUNER(BAND) + DISC1
2. Electronic Volume Test Mode (TEST 3).....................................
TUNING DOWN + VOLUME UP
3. Timer Test Mode (TEST 4).......................................................
TUNING UP + DISC5
4. FL Test Mode (TEST 5)...........................................................
PRESET DOWN + VOLUME DOWN
5. DVD MECHANISM Aging Test Mode (TEST 8).........................
DVD/CD + Equalizer
1. Button input diagnosis test mode (TEST 6)...............................
PRESET UP + DISC5
CH
BAND
FM
1
2
3
4
5
2
3
4
5
FM STEREO
FM 87.5 MHz
FM108.0 MHz
FM 98.0 MHz
FM 90.0 MHz
FM106.0 MHz
FM108.0 MHz
FM 98.0 MHz
FM 90.0 MHz
FM106.0 MHz
CH
BAND
FM
6
7
8
9
10
7
8
9
10
AM
AM 530 kHz
AM1720 kHz
AM 990 kHz
AM 600 kHz
AM1400 kHz
AM1720 kHz
AM 990 kHz
AM 600 kHz
AM1400 kHz
CH
BAND
FM
16-35
——————
36
37
38
39
40
37
38
39
40
FM MONO
FM106.0 MHz
FM 90.0 MHz
FM 98.0 MHz
FM108.0 MHz
FM 87.5 MHz
FM 90.0 MHz
FM 98.0 MHz
FM108.0 MHz
FM 87.5 MHz
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