Sharp XL-MP80 Schematic
XL-MP80H/MP80E
SERVICE MANUAL
No. S6438XLMP80H/
MICRO COMPONENT SYSTEM
Illustration XL-MP80H
Illustration XL-MP80E
(Except for Australia/
New Zealand)
CONTENTS
CHAPTER 1. GENERAL DESCRIPTION
[1] SAFETY PRECAUTION FOR SERVICE
MANUAL........................................................1-1
[2] IMPORT ANT SERVICE NOTES (FOR U.K.
ONLY)............................................................ 1-1
[3] SPECIFICATIONS .........................................1-2
[4] NAMES OF PARTS........................................ 1-3
CHAPTER 2. ADJUSTMENTS
[1] ADJUSTMENT...............................................2-1
[2] TEST MODE.................................................. 2-2
CHAPTER 3. MECHANICAL DESCRIPTION
[1] REMOVING AND REINSTALLING THE
MAIN PARTS .................................................3-1
[2] DISASSEMBLY.............................................. 3-3
CHAPTER 4. DIAGRAMS
[1] BLOCK DIAGRAM......................................... 4-1
MODEL
XL-MP80H Micro Component System consisting of XL-MP80H
(main unit) and CP-MP80H (speaker system).
MODEL
XL-MP80E Micro Component System consisting of XL-MP80E
(main unit) and CP-MP80H (speaker system).
• In the interests of user-safety the set should be restored to its original
condition and only parts identical to those specified be used.
CHAPTER 5. CIRCUIT DESCRIPTION
[1] WAVEFORMS OF CD CIRCUIT....................5-1
[2] VOLTAGE......................................................5-2
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] NOTES ON SCHEMATIC DIAGRAM............ 6-1
[2] TYPES OF TRANSISTOR AND LED............6-1
[3] WIRING SIDE OF PWB/SCHEMATIC DIA-
GRAM............................................................6-2
CHAPTER 7. FLOWCHART
[1] TROUBLESHOOTING ..................................7-1
CHAPTER 8. OTHERS
[1] FUNCTION TABLE OF IC.............................8-1
[2] LCD DISPLAY .............................................8-12
Parts Guide
XL-MP80H
XL-MP80E
SHARPCORPORATION
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
XL-MP80H/MP80E
AudioXL-MP80H/MP80EService ManualXLMP80HMarketE
CHAPTER 1. GENERAL DESCRIPTION
[1] SAFETY PRECAUTION FOR SERVICE
MANUAL
Precaution to be taken when replacing and servicing the Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class 1 Requirements. However, the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam.
1) When the cabinet has been removed, the power is turned on without a compact disc, and the Pickup is on a position out er than the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.
2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping.
3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup.
4) Under no circumstances look directly into the Pickup Lens at any time.
5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in hazardous radiation
exposure.
XL-MP80H
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
ADVERSEL-SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING.
SE IKKE IND I STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
VARO!AVATTAESSA OLET ALTTIINA NÄKYVÄLLE JA NÄKYMÄTTÖMÄLLE
LASERSÄTEILYLLE ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ
OPTISEN LAITTEEN LÄPI.
VARNING-SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA
DEL ÄR ÖPPNAD. STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ
STRÅLEN GENOM OPTISKT INSTRUMENT.
VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA KUIN TÄSSÄ
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA
ALTISTAA KÄYTTÄJÄN TURVALLISUUSLUOKAN 1
YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.
VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT ÄN
I DENNA BRUKSANVISNING SPECIFICERAS. KAN
ANVÄNDAREN UTSÄTTAS FÖR OSYNLIG LASERSTRÅLNING, SOM ÖVERSKRIDER GRÄNSEN FÖR
LASERKLASS 1.
XL-MP80E
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
1 – 1
FOR A COMPLETE DESCRIPTION OF THE OPERA TION O F THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
[2] SPECIFICATIONS
XL-MP80H
■ General
Power source AC 230 V, 50 Hz
Power
consumption
Dimensions Width: 160 mm (6-5/16")
Weight 3.8 kg (8.4 lbs.)
Power on: 83 W
Power stand-by: 0.6 W
Height: 228 mm (9")
Depth: 248 mm (9-13/16")
■ CD player
Type Compact disc player
Signal readout Non-contact, 3-beam semiconductor laser
D/A converter 1-bit D/A converter
Frequency
response
Dynamic range 90 dB (1 kHz)
XL-MP80H/MP80E
pickup
20 - 20,000 Hz
■ Amplifier
Output power PMPO: 120 W (total)
MPO: 60 W (30 W + 30 W) (DIN 45 324)
RMS: 40 W (20 W + 20 W) (DIN 45 324)
RMS: 30 W (15 W + 15 W) (DIN 45 500)
Output terminals Speakers: 6 ohms
Headphones: 16 - 50 ohms
(recommended: 32 ohms)
CD digital output (optical)
Input terminals Video/Auxiliary (audio signal):
500 mV/47 k ohms
■ Tuner
Frequency range FM: 87.5 - 108 MHz
AM: 522 - 1 ,620 kHz
XL-MP80E
■ General
Power source AC 230 - 240 V, 50 Hz
Power
consumption
Dimensions Width: 160 mm (6-5/16")
Weight 3.8 kg (8.4 lbs.)
Power on: 83 W
Power stand-by: 0.6 W
Height: 228 mm (9")
Depth: 248 mm (9-13/16")
■ Cassette deck
Frequency
response
Signal/noise ratio 50 dB (recording/playback)
Wow and flu tter 0.3 % (DIN 45 511)
50 - 14,000 Hz (normal tape)
■ Speaker
Type 2-way type speaker system
4 cm (1-9/16") semi dome tweeter
9 cm (3-9/16") woofer
Maximum input
power
Rated input power 20 W
Impedance 6 ohms
Dimensions Width: 130 mm (5-1/8")
Weight 1.8 kg (4.0 lbs.)/each
40 W
Height: 228 mm (9")
Depth: 172 mm (6-3/4")
■ CD player
Type Compact disc player
Signal readout Non-contact, 3-beam semiconductor laser
D/A converter 1-bit D/A converter
Frequency
response
Dynamic range 90 dB (1 kHz)
pickup
20 - 20,000 Hz
■ Amplifier
Output power RMS: 40 W (20 W + 20 W) (10 % T.H.D.)
RMS: 30 W (15 W + 15 W) (0.9 % T.H.D.)
Output terminals Speakers: 6 ohms
Headphones: 16 - 50 ohms
(recommended: 32 ohms)
CD digital output (optical)
Input terminals Video/Auxiliary (audio signal):
500 mV/47 k ohms
■ Tuner
Frequency range FM: 87.5 - 108 MHz
AM: 522 - 1 ,620 kHz
Specifications for this model are subject to change without prior notice.
■ Cassette deck
Frequency
response
Signal/noise ratio 50 dB (recording/playback)
Wow and flutter 0.25 % (WRMS)
50 - 14,000 Hz (normal tape)
■ Speaker
Type 2-way type speaker system
4 cm (1-9/16") semi dome tweeter
9 cm (3-9/16") woofer
Maximum input
power
Rated input power 20 W
Impedance 6 ohms
Dimensions Width: 130 mm (5-1/8")
Weight 1.8 kg (4.0 lbs.)/each
40 W
Height: 228 mm (9")
Depth: 172 mm (6-3/4")
1 – 2
XL-MP80H/MP80E
[3] NAMES OF PARTS
23
24
25
27
1
2
3
4
5
6
7
8
16
17 18
9
10
11
12
13
14
15
28
29
30
31
32
19
20
21
2226
1. Volume Control
2. Timer Set Indicator
3. Function Selector Button
4. On/Stand-by Button
5. Headphone Socket
6. Bass/Treble Selector Button
7. Memory/Set Button
8. Cassette Compartmen t
9. Di sc Tray
10. Disc or Tape Stop, Tuning Down Button
11.DiscTrayOpen/CloseButton
12. Di sc Play or Pause, Tape Play,
Tuning U p B u t t on
13. Disc Track Up or Fast Forward, Tape Fast Forward,
Tuner Preset Up Button
14. Disc Track Down or Fast Reverse, Tape Rewind,
Tuner Preset Down Button
15. Tape Record Pause Button
16. MP3 Disc Indicator
17. FM Stereo Mode Indicator
18. FM Stereo Receiving Indicator
19. Surround Indicator
20. Memory Indicator
21. Timer Play Indicator
22. Sleep Indicator
23. Disc Play Indicator
24. Disc Repeat Indicator
25. Di sc Pause Indicator
26. Tape Record Indicator
27. AC Power Input Socket
28.FM75OhmsAerialSocket
29. AM Loop Aerial Socket
30. V ideo /Auxiliary (Audio Signal) Input Sockets
31. CD Digital Output Socket
32. Speaker Terminals
Illustration XL-MP80E
1. Semi Dome Tweeter
2. Woofer
1
3
2
4
5
6
20
7
8
9
10
11
12
13
14
21
22
23
24
25
26
27
15
16
17
18
19
28
29
30
31
32
3. Speaker Terminals
4. Bass Reflex Duct
5. Remote Control Transmitter
6. O n/Stand-by Button
7. Clock Button
8. Timer Button
9. Sl eep Button
10. Surround Button
11. Disc Fast Reverse, Tuning Down,
Tape Rewind Button
12.DiscorTapePlayButton
13.DiscorTapeStopButton
14. Disc Track Down, Tuner Preset Down,
Time Down Button
15. Treble Up and Down Buttons
16. Memory Button
17. Disc Programme Clear Button
18. CD/ MP3 Disc Button
19. Tuner and Band Selector Button
20. MP3 Disc Display Button
21. Di rect Search Buttons
22. Volume Up Button
23. Disc Fast Forward, Tuning Up,
T ape Fast Forward Button
24. Disc Pause Button
25. Volume Down Button
Disc Track Up, Tuner Preset Up, Time Up Button
26.
27. Tape Record Pause Button
28. Bass Up and Down Buttons
29. Disc Random Play Button
30. Disc Repeat Button
31. Video/Auxiliary Button
32. Tape Button
Illustration XL-MP80E
1 – 3
XL-MP80H/MP80E
26
27
28
30
1
2
3
4
5
6
7
8
16
17 18 19 20 21
9
10
11
12
13
14
15
31
32
33
34
35
22
23
24
2529
1. Volume Control
2. Time r Set Indicator
3. Function Selector Button
4. O n/Stand-by Button
5. Headp hone Socket
6. Bass/Treble Selector Button
7. Memory/Set Button
8. Cassett e Compartment
9. Di sc Tray
10. Disc or Tape Stop, Tuning Down Button
11. Disc Tray Open/Close Button
12. Disc Play or Pause, Tape Play,
Tuning Up Button
13. Disc Track Up or Fast Forward, Tape Fast Forward,
Tuner Preset Up Bu tto n
14. Disc Track Down or Fast Reverse, Tape Rewind,
Tuner P r e s e t D o w n B ut t o n
15. Tape Record Pause Button
16. MP3 Disc Indicator
17. RDS Indicator
18. Traffic Announcement Indicator
19. Traffic Programme Indicator
20. FM Stereo Mode Indicator
21. FM Stereo Receiving Indicator
22. Surround Indicator
23. Memory Indicator
24. Timer Play Indicator
25. Sleep Indicator
26. Di sc Play Indicator
27. Disc Repeat Indicator
28. Disc Pause Indicator
29. Tape Record Indicator
30. AC Power Input Socket
31. FM 75 Ohms Aerial Socket
32. AM Loop Aerial Socket
33. Video/Auxiliary (Audio Signal) Input Sockets
34. CD Digital Output Socket
35. Speaker Terminals
Illustration XL-MP80H
1. S emi Dome Tweeter
2. Woofer
1
3
2
4
5
6
22
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
23
24
25
26
27
28
29
30
31
32
33
34
35
3. Spea ker Terminals
4. Bass Reflex Duct
5. Remote Control Transmitter
6. On/Stand-by Button
7. Clock Button
8. Timer Button
9. Sleep Button
10. S urround Button
11. Disc Fast Reverse, Tuning Down,
Tape Rewind Button
12.DiscorTapePlayButton
13. D isc or Tape Stop Button
14. Disc Track Down, Tuner Preset Down,
Time Down Button
15. RDS ASPM (Auto Station Programme Memory) Button
16. RDS Programme Type/
Traffic Information Search Button
17. Treble Up and Down Buttons
18. Memory Button
19. Disc Programme Clear Button
20. CD/MP3 Disc Button
21. Tuner and Band Selector Button
22. M P3 Disc Display Button
23. Direct Search Buttons
24. Volume Up Button
25. Disc Fast Forward, Tuning Up,
Tape Fast Forward Button
26. Di sc Pause Button
27. Volume Down Button
28. Disc Track Up, Tuner Preset Up, Time Up Button
29. RDS Display Mode Select Button
30. Tape Record Pause Button
31. Bass Up and Down Buttons
32.DiscRandomPlayButton
33. Disc Repeat Button
34. Video/Auxiliary Button
35. Tape Button
Illustration XL-MP80H
1 – 4
XL-MP80H/MP80E
AudioXL-MP80H/MP80EService ManualXLMP80HMarketE
CHAPTER 2. ADJUSTMENTS
[1] ADJUSTMENT
1. MECHANISM SECTION
• Driving Force Check
Torque Meter Specified Value
Play: TW-2111 Over 80 g
• Torque Check
Torque Meter Specified Value
Play: TW-2111 30 to 80 g.cm
Fast forward: TW-2231 70 to 180 g.cm
Rewind: TW-2231 70 to 180 g.cm
• Tape Speed
Test Tape Adjusting
Point
MTT-111 Variable
Resistor in
motor.
Specified
Value
3,000 ± 30 Hz Speaker Ter-
Instrument
Connection
minal (Load
resistance: 6
ohms)
TAPE MECHANISM
M501
Tape
Motor
Variable
resistor
in motor
Figure 1
2. TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Test Stage Frequency Frequency
Display
IF 450 kHz 1,602 kHz L305 *1
AM Band
— 522 kHz (fL): L306
Coverage
AM Tracking 990 kHz 990 kHz L302 *3
Setting/
Adjusting
Parts
1.1 ± 0.1 V
Instrument
Connection
*2
MAIN PWB
X351
9
10
11
12
13
14
15
16
8
7
6
5
4
IC351
3
2
1
CF303
W302
L305
AM IF
W302
W303
CF302
CF304
*1. Input: IC301 1Pin Output: IC301 23Pin
*2. Input: Input is not connected Output: TP301(IC301 28Pin)
*3. Input: Antenna Output:IC301 23Pin
W303
FE301
J301
FM ANTENNA
2
1
75 OHMS
CNP301
AM LOOP ANTENNA
VIDEO/AUX
LEFT
RIGHT
J102
IN
W301
CF301
C321
IC301
TP301
L311
23
L306
AM BAND
COVERAGE fL
AM
Tracking
L302
Figure 2 ADJUSTMENT POINTS
2 – 1
3. 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.
Each time a disc is changed, these adjustments are performed
automatically. Therefore, playback of each disc can be performed
under optimum conditions.
[2] TEST MODE
Test Mode Key Operation
KEY1 KEY2 KEY3 TEST CONTENTS INDICATION
Memory Preset Down Power Preset clear Tu CL
Memory Stop Power Preset set FM P-01
Memory Play Power Display
Memory Preset up Power CD TEST-1
Memory REC Power Soft reset CLEAR
Bass/treble Preset down Power Volume TEST-3
Bass/treble Play Power Timer test TEST-4
Bass/treble TAPE-REC Power all key TEST-6
Bass/treble Stop Power Tuner aspm TEST-7
All test modes can be terminated by turning off the power with POWER key.
• Preset clear test
All tuner preset stations are cleared.
• Preset set test
CH BAND FREQUENCY
1 FM STEREO FM 87.50 MHz
2 FM 108.00 MHz
3 FM 98.00 MHz
4 FM 90.00 MHz
5 FM 106.00 MHz
1 AM AM 522 kHz
2 AM 1620 kHz
3 AM 990 kHz
4 AM 603 kHz
CH BAND FREQUENCY
5 AM AM 1404 kHz
AM6-30
FM11-30
·
35
36 FM MONO FM 106.00 MHz
37 FM 90.00 MHz
38 FM 98.00 MHz
39 FM 108.00 MHz
40 FM 87.50 MHz
XL-MP80H/MP80E
Stations are set according to destination.
• Display test
When test mode is activated, the entire display lights up. As the “PLAY” button is pressed, half of the display lights up alternately .
• CD test
[cd step 1] Enter test mode.
↓ Hold down the “memory” button
[cd step 2] After some steps, the laser turns on.
↓ Hold down the “memory” button
[cd step 3] After some steps, focus search is performed.
↓ Hold down the “memory” button
[cd step 4] After some steps, CLV rotation is performed.
↓ Hold down the “memory” button
[cd step 5] CD playback starts.
↓ Hold down the “stop” button to return to [cd step 1] ––––––––––
In step 5, hold down the AUX button on the remote control. The tracking servo is switched on/off.
From step 3, the pick up can be moved with the FF/REW button.
←———————
2 – 2
XL-MP80H/MP80E
• Soft reset test
All data in RAM is cleared.
• VOLUME test
Starting from level 23 (default), check all the levels (0 - 23 - MAX).
• Tuner aspm test
106.50 MHz FM stereo is set by default. Hold down the “ASPM” button (on the remote control) to start scanning from 105.00 MHz. The unit
receives stations and stores them as PS (preset stations).
If no station is received, “0MEMORY” appears.
• TIMER test
Start the timer at 1:00. When it reaches 1:05, turn on the power with the AUX function and turn off the power after about 30 seconds.
(In the test mode, fade-in and fade-out are not required.)
• ALL KEY test
In the test mode, hold down all the buttons on the main unit and then press the “POWER” button. “OK” appears.
If only the “POWER” key is pressed, “ERROR” appears.
2 – 3
Erase Head
Record/
Playback Head
(A1)x2
ø2x8mm
(A2)x1
ø2x3mm
(A2)x1
ø2x7mm
AudioXL-MP80H/MP80EService ManualXLMP80HMarketE
CHAPTER 3. MECHANICAL DESCRIPTION
[1] REMOVING AND REINSTALLING THE
MAIN PARTS
1. TAPE MECHANISM SECTION
Perform steps 1 to 5 and 7 of the disassembly method to remove the
tape mechanism. (See page 3-3,3-4)
1.1. How to remove the record / playback and erase hea ds
(See Fig. 1)
1. Remove the screws (A1) x 2 pcs., to remove the erase head.
2. Remove the screws (A2) x 2 pcs., to remove the record/playback
head.
NOTE: After replacing the heads and performing the azimuth adjust-
ment, be sure to apply screw lock.
1.2. How to remove the pinch roller (See Fig.2)
1. Carefully bend the pinch roller pawl in the dir ection of the arrow
<A>, and remove the pinch roller (B1) x 1 pc., upwards.
XL-MP80H/MP80E
Figure 1
1.3. How to remove the belts (See Fig.3)
1. Remove the main belt (C1) x 1 pc., from the motor pulley.
2. Remove the FF/REW belt (C2) x 1 pc., from the REW/FF roller.
3. Put on the belts in the reverse order of removal.
NOTE: When putting on the belt, ascertain that the belt is not twisted,
and clean it.
1.4. How to remove the motor (See Fig.4)
1. Remove the main belt.
2. Remove the screws (D1) x 2 pcs., to remove the motor bracket.
3. Remove the screws (D2) x 3 pcs., to remove the motor.
NOTE: When mounting the motor, pay attention to the motor mounting
angle.
Pinch Roller
(B1)x1
Main Belt
(C1)x1
(D1)x1
ø2x4mm
Motor
<A>
Pinch Roller
Pawl
Figure 2
Motor
REW/FF
Clutch
FF/REW Belt
(C2)x1
Figure 3
(D2)x3
Special
Screw
Motor
Bracket
3 – 1
(D1)x1
ø2x4mm
Motor
Figure 4
XL-MP80H/MP80E
1.5. How to remove the flywheel (See Fig. 5)
1. Remove the belt.
2. Remove the stop washer (E1) x 1 pc., with a small precision screwdriver to extract the flywheel from the capstan metal.
NOTE: When the stop washer is deformed or damaged, replace it with
a new one.
Mechanism
Chassis
Washerx2
(E1)x1
Stop Washer
Stop
Washer
Driver
1.6. How to reinstall the parts
Install each part in the reverse order of the removal with care.
1.7. How to remove the tape mechanism PWB (See Fig. 6)
1. Remove the screw (F1) x 1 pc., to remove the tape mechanism
PWB.
2. Remove the screws (F2) x 1 pc.
3. Remove the solder joints (F3) x 2 pcs., to remove the tape mechanism PWB.
Flywheel
(F1)x1
Tape
ø2x3mm
Mechanism
PWB
Figure 5
(F2)x1
ø2x8mm
Tape
Mechanism
PWB
(F3)x2
Solder
Joint
Figure 6
3 – 2
(A1) x2
ø3x10mm
(B1) x2
ø3x8mm
(B1) x2
ø3x8mm
(B1) x2
ø3x8mm
(A1) x2
ø3x10mm
(A1) x3
ø3x10mm
Top Cabinet
Front Panel
Side Panel
(Left)
Side Panel
(Right)
Rear Panel
(D1) x7
ø3x10mm
(D2) x3
ø3x8mm
Front Panel
Rear Panel
1
1
2
2
CD Tray Cover
(C1)x1
(C2)x1
(C3)x2
(C4)x1
(C2)x1
Pull
Pull
CD Player Unit
CD Servo
PWB
Push
Lever
[2] DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling the unit and
reassembling it, to keep it safe and ensure excellent performance:
1) Take cassette tape and compact disc out of the unit.
2) Be sure to remove the power supply plug from the wall outlet
before starting to disassemble the unit.
3) Take off nylon bands or wire holders where they need to be
removed when disassembling the unit. After servicing the unit,
be sure to rearrange the leads where they were before disassembling.
4) Take sufficient care on static electricity of integrated circuits and
other circuits when servicing.
STEP REMOVAL PROCEDURE FIGURE
1 Top Cabinet 1. Screw...........................(A1) x 7 1
2 Side Panel 1. Screw...........................(B1) x 6 1
3 CD Player Unit 1. Turn on the power supply,
4 Rear Panel/Main
PWB
5 Main PWB 1. Screw...........................(E1) x 4
6 Power PWB 1. Screw...........................(F1) x 4 4
7 Front Panel 1. Screw..........................(G1) x 2 4
8 Display PWB 1. Knob............................(H1) x 1
9 Tape Mechanism 1. Screw...........................(J1) x 4 5
10 Headphones
PWB
11 CD Servo PWB
(Note 2)
12 CD Player Unit 1. Screw..........................(M1) x 4 6
13 CD Mechanism 1. Screw..........................(N1) x 4 7
Note 1: How to open the changer manually. (Fig. 3)
When CD tray doesn’t come out even if the power is turned on, push a
right lever with the screwdriver and others.
Note 2:
After removing the connector for the optical pickup from the connector,
wrap the conductive aluminium foil around the front end of the connector so as to protect the optical pickup from electrostatic damage.
open the disc tray, take out the
CD tray cover, and close.
........................................(Note 1)
2. CD Tray Cover............(C1) x 1
3. Hook............................(C2) x 2
4. Flat Cable....................(C3) x 2
5. Socket.........................(C4) x 1
1. Screw..........................(D1) x 8
2. Screw..........................(D2) x 3
2. Flat Cable....................(E2) x 1
3. Socket.........................(E3) x 5
2. Screw..........................(H2) x 8
1. Screw...........................(K1) x 1 6
1. Screw...........................(L1) x 4
2. Flat Cable.....................(L2) x 1
3. Socket..........................(L3) x 266,7
2,4
XL-MP80H/MP80E
2
Figure 1
4
5
Figure 2
Figure 3
3 – 3
XL-MP80H/MP80E
(L1) x4
ø3x10mm
(M1) x4
ø3x10mm
(L2) x1
CD Player Unit
(L3) x1
CD Servo
PWB
(E3) x1
(E2) x1
Front Panel
(E3) x2
(H1) x1
(G1) x2
ø3x10mm
Figure 4
Front Panel
(E3) x1
Power PWB
(E1) x2
ø3x6mm
(F1) x4
ø4x10mm
(E3) x1
Display PWB
(H2) x8
ø2.6x10mm
Headphones
PWB
(D1) x1
ø3x10mm
Main PWB
(E1) x2
ø3x10mm
PWB
Figure 6
CD Player Unit
Cassette
Holder
Open
(J1) x4
ø2.6x10mm
Figure 5
(K1) x1
ø2.6x10mm
Tape
Mechanism
(N1) x4
ø2.6x10mm
CD Mechanism
(L3) x1
Figure 7
3 – 4
—MEMO—
XL-MP80H/MP80E
3 – 5
XL-MP80H/MP80E
AudioXL-MP80H/MP80EService ManualXLMP80HMarketE
CHAPTER 4. DIAGRAMS
[1] BLOCK DIAGRAM
FE301
FM FRONT END
ANT
GND
GND
VCCVIF_OUT
GND
5
6124783
J301
FM
ANTENNA
75 OHMS
AM LOOP
ANTENNA
1
2
+B
CNP301
CF301
FM IF
IF_OUT
L302
Q371
D305
AM
Tracking
AMANT.
AMOSC.
L306
AM BAND
COVERAGE fL
+B
35
36
34 33 32 31 30 29 28
VCC2
GND2
FM-OSC
AM-OSC
FMRF-IN
FMRF-OUT
PLL(TUNER)/
FM IF DET./FM MPX./AMIF
AMRF-IN
REG
FM-MIX
AM-MIX
VCC1
GND1
1 2 3 4 5 6 7 8 9 10 11121314 15161718
+B
CF304
FM IF
AM IF
CF303
L305
+B
AM IF
TP301
27 26 25 24 23 2221 20 19
PD
B02
B01
LP-IN
LP-OUT
LP-OUT
IC301
LV23002
FM IF-IN
AM IF-IN
P-DET
P-CCMP
FM-DET
FM IF
CF302
AGC
DET-OUT
AMLOWOUT
VSS
L-OUT
R-OUTDICL
+B
MPX-IN
CE
FM DET.
VDD
XOUT
X301
75kHz
Q305
+B +B
Q301
L311
XIN
+B
Q352
Q353
16 15 14 13 12 11 10 9
IC351
LC72723D
RDS
12345678
+B
X351
456kHz
RDS CIRCUIT: H ONLY
DO
+B
CL
(DI)
CE
(DO)
+B
Q351
+B
O-TU-SCK
O-TU-SDO
O-TU-CE
I-TU-SDI
TUN_+B
TUN_L/R
RDS-SD
RDS-SC
AC 230V, 50Hz
AC POWER
SUPPLY CODE
J1
AC INPUT
SOCKET
AC 230V, 50Hz
F101
T1A L 250V
1
2
3
4
5
6
7
4
3
PT2
(SUB)
2
POWWER TRANSFORMER
1
FRONT SPEAKER
L/R-CH
J103
HEADPHONES
PT1
POWWER TRANSFORMER
(MAIN)
17
16
15
14
13
12
11
10
9
8
24
RY1
RELAY
1
5
6
7
8
9
3
J101
SPEAKER
TERMINAL
1
4
2
3
D1~D4
Q255
Q256
Q257
IC202
STK45303
POWER
-B
-B
+B
D101~D104
C119
-B
C118
+B
Q104
Q101
LO–
LO+
–VP
-B
Q102
Q103
RO–
RO+
+VP
Q105
–VC
+B
+B
1
2
+B
STBY
GND
SUB
+VCC
D251~D254
IC401
+B
3
KIA7805AP
VOLTAGE REGULATOR
Q401~Q404
LI+
L_CH
LI–
RI–
RI+
19171816141312108764321
R_CH
Q201
Q251~Q254
O-POWER
I-SAFETY
CNP402
1
2
FROM DISPLAY PWB
M
M401
FAN
MOTOR
+B
-B
+B
-VFL
F1
F2
MC_VB
PWB
TO CD SERVO
6
5
4
3
2
1
CNS504
CD-L
CD-L
CD-A.GND
CD-A.GND
CD-R
CD-R
CD-D.GND
CD-D.GND
CD-VM
CD-VM
CD-P.GND
CD-P.GND
Figure 4-1 BLOCK DIAGRAM (1/5)
4 – 1
XL-MP80H/MP80E
I
LY
LI+
L_CH
X351
LI–
456kHz
TUN_+B
TUN_L/R
RI–
RI+
19171816
R_CH
Q201
Q251~Q254
RDS-SD
RDS-SC
CNS503
F2
23
F1
22
–VFL
21
D-GND
20
MC-VB
19
O-POWER
18
I-SAFETY
17
I-TP-SOL
16
I-TP-MOTOR
15
I-TP-RUN
14
I-TP-STATE
13
O-TP-BIAS
O-SURROUND
O-EVR-SDO
O-EVRCLK
Q603
+B
PB2P
O-AMP-ON
O-TU-SCK
O-TU-SDO
Q508
239121314
PB1P
O-AMP-ON
I-RDS-SD
I-RDS-SC
+B
8
TUN_+B
+B
TUN_L/R
123 4
+B
-B
-VCC
6
VCC
VCC
IC601
NJM14558
OPE.AMP.
7
R
SD
RECORD/PLAYBACK AMP.
5
LLR
+B
VCC
IC501
BD3881FV
VEE
Q601
Q602
GND
O-TP-R/P
O-TU-CE
I-TU-SDI
I-RDS-SD
I-RDS-SC
Q513
Q511
Q512
TO DISPLAY PWB
12
11
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
Q509
Q510
TAPE MECHANISM ASS'Y
RECORD/PLAYBACK
HEAD
R-CH
L-CH
ERASE HEAD
EGULATOR
O-POWER
I-SAFETY
CNP402
1
2
FROM DISPLAY PWB
M
M401
FAN
MOTOR
+B
-B
+B
-VFL
F1
F2
MC_VB
PWB
TO CD SERVO
6
5
4
3
2
1
CNS504
CD-L
CD-L
CD-A.GND
CD-A.GND
CD-R
CD-R
CD-D.GND
CD-D.GND
CD-VM
CD-VM
CD-P.GND
CD-P.GND
OUT2
OUT1A1A2B1B2C1C2
1816
19
TUN-L/R
CD-L/R
L503
OSC
L
R
AUX-L
6
5
4
+B
+B
Q505
-B
1
2
3
Q501
-B
+B
O-TP-BIAS
+B
AUX-R
TUN_L
TUN_R
23222120
24
CD-R
CD-L
+B
+B
Q506
+B
I-TP-SOL
AUX-L/R
I-TP-MOTOR
REC20
REC10
2825
RECORD SIGNAL
Q507
Q503Q502
Q504
PHOTO
INTERRUPTER
SW502
CAM
SW501
FOOL
PROOF
M501
TAPE
MOTOR
+
–
SOL501
SOLENOID
J102
VIDEO/AUX
M
IN
Figure 4-2 BLOCK DIAGRAM (2/5)
4 – 2
XL-MP80H/MP80E
5
2
A10
CD A GND
P
A11
+B
CD PICKUP UNIT
VC
+5V
PD-IC
LD
FOCUS
TRACKING
CD MOTOR PWB
PICKUP-IN
SLED
MOTOR
SPINDLE
MOTOR
26
27
CNS801
VC
1
1
VCC
2
2
E
3
3
D
4
4
A
5
5
B
6
6
C
7
7
F
8
8
GND
9
9
LD
10
10
VR
11
11
PD
12
12
F+
13
13
T–
14
14
T+
15
15
F–
16
16
GND
6
SWIL
5
SL–
4
M
M
SL+
3
SP–
2
SP+
1
O+FCS
GND
O-TRK
O+TRK
+B
18 17
FBAL
ARF
987643
GCTL
CEA
FEOUT
3TOUT
FEN
TEOUT
OFTCV
DCDET
TEN
BDO
1920212223242526272829303132
VREF
OFTR
GND
EQBST
LDON
NRFDET
1615141310 11 12
+B
+B
DVDD
DRVDD
+B
Q805
+B
Q804
+B
+B
Q806
+B
+B
VCC
IFCS
+B
VCC
AN22004A
SERVO AMP.
Q801
212628
GND
I-SLD
I-SPD
IC803
VCC
O-SLD
O+SLD
+B
1516171819202223242527
STBY
BDACE
PD
12 5
GND
F
TBAL
CAGC
RFIN
RFOUT
EQSW
VCC
LD
+B
+B
+B
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
SVDD
+B
SW801
CLOSE
OPEN
M
M801
LOADING
MOTOR
C
5
G
4
O
3
M+
2
M–
1
REF-IN
IN+
IN–
OUT
I-TRK
O-FCS
12345 131211109867
2.5VREF
GND
REF-SW
+B
VCC
14
O-SPD
O+LOAD
I-LOAD
O+SPD
O-LOAD
Figure 4-3 BLOCK DIAGRAM (3/5)
IC804
AN8785SB
FOCUS/TRACKING/
SPIN/SLED DRIVER
+B
+B
+B
CD-VM
CD-P.GND
CD-R
1234
TO MAIN
4 – 3
XL-MP80H/MP80E
A11
A0A1A2
A10
+B
25 24
26
27
+B
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74
A3
NCS
NWE
NCAS
A3A2A1
A0
NCS
DRVDD
DVSS1
24
A10
25
DIGITAL SIGNAL
PROCESSOR
AVDD
50
DSLF
PWMSEL
PLLF
PLLFO
AVSS
LOOUTL
NRAS
NWE
NCAS
NRAS
IC801
MN6627933C
LOVSS1
LOOUTR
LOVDD1NCTMON1NCNC
+B
23 22 21 20 19 18 17 16 15 14 13 12 11 10
BA1
BA0
DVDD1
SPOUT
SPOUL
TRVP
TRVM
TRVP2
TRVM2
TRP
TRM
FOP
FOM
IOVDD1
TBAL
FBAL
FE
TE
ADPVCC
RFENV
LDON
NRFDET
OFT
BDO
1REF
ARF
CD
A4
LDQM
A9A8A7A6A5
D8
D9
CLK
D11
D10
0
VDQM
R865
1
23456789
100
D12
A9A8A7A6A5
A4
TMON2
+B
1
2
74
75
DVDD3
DVSS2
D11
D10
MLD
STAT
A11
EXTO
SDRCK
EXT1
UDQM
EXT2
D9
D8
DRVDD2
DVDD2
IOVDD2
DVSS3
NTEST
NRST
FLAG
MCLK
MDATA
D13
D14
D15
D7
D6
D5
D4
D3
D0
D1
D2
X2
X1
TX
PMCK
SMCK
BLKCK
75
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
+B
D12
TP1
D15
D14
D13
D7
D6
D5
D4
D3
D0
D1
D2
X801
16.9344MHz
IC805
HY57V16D
D-RAM
VSS
VDD
D0
D1
D2
D3
D4
D5
D6
D7
NWE
NCAS
NRAS
NCS
A11
A10
A0
A1
A2
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
DQ0
DQ1
VSSQ
DQ2
DQ3
VDDQ
DQ4
DQ5
VSSQ
DQ6
DQ7
VDDQ
LDQM
/WE
/CAS
/RAS
/CS
A11
A10
A0
A1
A2
A3
VDDVSS
DQ15
DQ14
VSSQ
DQ13
DQ12
VDDQ
DQ11
DQ10
VSSQ
VDDQ
VDQM
DQ9
DQ8
CLK
CKE
50
D15
49
D14
48
47
D13
46
D12
45
44
D11
43
D10
42
41
D9
40
D8
39
38
NC
37
VDQM
36
CLK
35
34
NC
33
A9
A8
A7
A6
A5
A4
A9
32
A8
31
A7
30
A6
29
A5
28
A4
27
26
D-OUT
+B
VCC
B
SVDD
+B
2125 2223242627282931 3035 34 33 323637383940
41
CS
42
SRQ
43
44
45
46
47
48
+B
AVDD
Q803
+B
+B
CD-A.GND
49
50
51
52
53
54
55
56
57
58
59
60
STBY
CSTAT
CMD
SCK
POWER
FLASH-DATA
FLASH-CLK
FLASH-ENA
61 62 63 64 6665 67 68 69 70 71 72 73 74 75 76 77 78 79 80
BLKCK
IC802
IXA018SJ
MP3-DCORDER
MRST
RESTSW
RESET
MCLK
STAT
MDATA
NMOD
VSS
OSC1
OSC2
VDD
VREF+
VPP
AN6
AN5
AN4
AN3
AN2
AN1
AN0
VREF–
MLD
20
19
18
17
XO
16
XI
15
14
13
12
11
+B
10
9
8
7
6
5
4
3
2
1
X802
GND
8.3666 MHz
1
2
3
VPP
GND
/RESET
CLK
DATA
ENA
D-IN
VCC
GND
IC171
DIITAL
OUT
CD-VM
CD-P.GND
CD-R
123456
TO MAIN PWB
CD-D.GND
CD-L
CNS805
D-GND
123456789
TO DISPLAY
PWB
10 11
CNS804
O-TRAY-CLS
O-TRAY-OPN
O-CD-CLK
I-CD-DATA
O-CD-CMD
O-CD-/RST
O-CD-/STBY
O-CD-CE
I-CD-RQ
I-TRAY-SW
Figure 4-4 BLOCK DIAGRAM (4/5)
4 – 4
XL-MP80H/MP80E
I-RDS-SC
1
I-RDS-SD
2
I-TU-SDI
3
O-TU-CE
4
O-TU-SDO
5
O-TU-SCK
6
O-AMP-ON
7
O-EVRCLK
8
O-EVR-SDO
9
O-SURROUND
10
O-TP-R/P
11
O-TP-BIAS
12
TO MAIN
O-TP-STATE
13
O-TP-RUN
14
O-TP-MOTOR
15
O-TP-SOL
16
I-SAFETY
17
O-P-ON
18
MC-VB
19
D-GND
20
21
22
23
CNS701
–VFL
F1
F2
LED702
TIMER
LP3052A+
SELS6E14
+B
LED701
CNS402
I-FAN.DETECT
2
O-FAN.MOTOR
1
TO MAIN
O-TU-SDO
I-TU-SDI
O-TU-SCK
O-EVR-SDO
Q706
+B
O-EVR-CLK
O-TU-CE
X702
32.768kHz
I-SAFETY
CD-TRAY-SW
I-TP-STATE
+B
O-TIMER-LED
+B
Q702
Q701
Q705
Q704
+B
+B
Q708
Q703
I-SW1
I-SW2
/RESET
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
19
20
21
22
23
24
25
96 92 91
P00
P01
P02
P03
P04
P05
P06
VDD1
OSC2
OSC1
VSS1
XI
XO
MMOD
VREF–
PA0
PA1
PA3
PA4
PA5
PA6
PA7
VREF+
P07
PD3
26
/RST
27
P10
28
P11
P12
P13
26 27 28
29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
I-TP-RUN
O-TP-MOTOR
O-TP-R/P
O-TP-SOL
PB0
PD7
IC701
IXA013SJ
SYSTEM
MICROCOMPUTER
P14
P15
P20
P21
P22
P23
P24
O-TP-BIAS
I-RQS-SQ
I-IR-RMC
D-LEQ
I-CD-RQ
P25
I-CD-OMB
P30
P31
I-CD-DATA
O-CD-CLK
–VFL
100
VPP
P32
P51
P50
O-SURROUND
O-AMP-ON
O-TRAY-OPN
P52
P53
P54
O-TRAY-CLS
I-RDS-SD
SEG25
DGT10
P66
P67
I-JOG-UP
I-JOG-DN
SEG8
DGT2
P61
P62
P63
P65
O-P-ON
O-CD-CE
82
65
62
54
53
52
51
P64
F1
I-/BKUP
O-CD-/STBY
F2
O-CD-/RST
+B
FL DISPLAY
F1
1
F1
2
P18
4
P1
21
1G
24
9G
32
F2
34
F2
35
OUT
1
VCC
2
GND
3
RX701
GP1UD281
REMOTE
SENSOR
FL701
SW701
VOLUME
JOG
CNS702
O-TRAY-CLS
A
B
C
SW702~SW706
SW707~SW711
O-TRAY-OPN
O-CD-CLK
I-CD-DATA
0-CD-CMD
0-CD-/RST
0-CD-/STBY
I-TRAY-SW
0-CD-CE
I-CD-RQ
D-GND
11
10
9
8
7
6
PWB
5
4
TO CD SERVO
3
2
1
Figure 4-5 BLOCK DIAGRAM (5/5)
4 – 5
I-SLD
I-SLD
AudioXL-MP80H/MP80EService ManualXLMP80HMarketE
CHAPTER 5. CIRCUIT DESCRIPTION
[1] WAVEFORMS OF CD CIRCUIT
O-FCS
O+FCS
XL-MP80H/MP80E
5 – 1
XL-MP80H/MP80E
[2] VOLTAGE
PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IC202
VOLTAGE
-23.1 V
0V
22.6 V
0V
0V
0V
-21.6 V
0V
0V
21.2 V
0V
0V
0.65 V
0V
0V
0V
0V
0V
0V
IC301
VOLTAGE
0V
2.22 V
2.24 V
0V
4.66 V
4.66V
2.19 V
2.21 V
3.69 V
3.55 V
2.54 V
2.16 V
2.15 V
0V
0V
3.30 V
3.34 V
0V
1.66 V
1.64 V
3.26 V
2.20 V
2.47 V
0.68 V
1.40 V
1.99 V
1.99 V
3.26 V
4.30 V
1.26 V
4.61 V
4.56 V
4.57 V
3.72 V
0V
0.97 V
IC351
VOLTAGE
2.37 V
2.36 V
4.76 V
0V
2.37 V
2.36 V
0.06 V
2.41 V
2.34 V
0V
4.76 V
0V
0V
2.40 V
2.37 V
0V
PIN
NO.
PIN
NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
PIN
NO.
PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
IC401
VOLTAGE
8.5 V
0V
5.0 V
IC501
VOLTAGE
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
4.76 V
0V
-4.76 V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
IC601
VOLTAGE
0V
0V
0V
-4.7 V
0V
0V
0V
4.7 V
IC804
VOLTAGE
3.96 V
1.73 V
2.52 V
1.54 V
1.53 V
1.73 V
2.52 V
0V
2.52 V
8.07 V
3.91 V
3.87 V
3.44 V
4.25 V
0V
2.86 V
3.74 V
3.90 V
8.03 V
1.73 V
1.72 V
0V
8.06 V
1.73 V
0V
3.87 V
0V
3.66 V
PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
IC802
VOLTAGE
0V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
1.70 V
1.70 V
0V
0V
3.48 V
0V
0V
0V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.33 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
0V
3.48 V
3.48 V
3.48 V
3.27 V
3.48 V
3.48 V
3.48 V
3.48 V
3.27 V
3.48 V
3.48 V
3.48 V
3.48 V
0V
3.33 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
0V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
3.48 V
0V
PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
IC805
VOLTAGE
3.49 V
1.17 V
1.52 V
0V
0.63 V
0V
3.49 V
0.89 V
0.58 V
0V
0.83 V
0V
3.51 V
3.49 V
3.51 V
3.49 V
3.49 V
3.48 V
2.61 V
0V
1.46 V
1.20 V
1.33 V
1.41 V
3.51 V
0V
2.66 V
1.67 V
0.62 V
0V
0V
0V
3.52 V
1.63 V
3.49 V
0V
3.52 V
3.52 V
0V
0.64 V
0.30 V
0.63V
0.30 V
3.48 V
1.88 V
0V
0V
1.92 V
0V
0V
PIN
NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
IC803
VOLTAGE
0.21 V
2.27 V
3.40 V
0V
2.04 V
2.14 V
1.82 V
1.59 V
1.68 V
1.60 V
2.10 V
0.89 V
0.12 V
0.13 V
0.12 V
3.38 V
0.14 V
1.70 V
1.78 V
1.78 V
1.78 V
1.77 V
1.78 V
0.03 V
1.77 V
1.76 V
1.77 V
1.77 V
1.78 V
1.78 V
1.78 V
1.78 V
PIN
NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
1
2
3
4
5
6
7
8
9
VOLTAGE
3.35 V
3.46 V
3.34 V
0V
3.32 V
0V
0V
3.35 V
1.66 V
0V
1.61 V
1.60 V
0V
0V
3.44 V
3.44 V
2.36 V
1.03 V
1.25 V
1.25 V
0V
0V
3.45 V
0V
3.34 V
3.14 V
0V
0V
0V
0V
3.2 V
3.35 V
0V
3.45 V
0V
0V
0V
0V
3.46 V
3.34 V
0V
0V
0V
0V
0V
3.2 V
3.2 V
0V
2.5 V
IC701
PIN
NO.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
VOLTAGE
3.4 V
3.28 V
3.28 V
-18.17 V
-22.74 V
-22.74 V
-22.74 V
-22.74 V
-22.74 V
-22.74 V
-22.74 V
-22.74 V
-25.45 V
-25.45 V
-22.21 V
-12.52 V
-25.52 V
-25.52 V
-15.51 V
-25.57 V
-18.69 V
-21.64 V
-8.91 V
-18.18 V
-22.70 V
-18.97 V
-10.47 V
-9.03 V
-1.41 V
-1.15 V
-12.97 V
-13.90 V
0.59 V
-0.56 V
-0.89 V
-0.81 V
-0.76 V
-0.36 V
-0.65 V
-0.84 V
0V
3.24 V
2.43 V
2.96 V
2.96 V
2.83 V
3.33 V
0V
2.56 V
-25.97 V
PIN
NO.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
1
2
3
4
5
6
7
8
9
VOLTAGE
0.33 V
1.27 V
1.32 V
1.89 V
3.49 V
1.62 V
0.04 V
0.05 V
0.04 V
2.53 V
2.29 V
1.93 V
1.52 V
3.48 V
3.50 V
3.48 V
3.48 V
3.47 V
1.90 V
1.69 V
2.22 V
1.25 V
0V
0V
0V
0V
3.50 V
1.53 V
1.62 V
0V
1.72 V
0V
0V
0V
1.68 V
0V
1.50 V
0V
3.46 V
1.71 V
1.70 V
1.73 V
1.77 V
1.75 V
1.60 V
3.38 V
3.17 V
0.20 V
0.16 V
3.34 V
IC801
PIN
NO.
100
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
VOLTAGE
0.86 V
1.71 V
1.71 V
3.36 V
1.75 V
1.46 V
0V
0V
0V
1.75 V
3.48 V
0V
0V
0V
0V
0V
1.52 V
0V
0V
0V
0V
3.23 V
1.42 V
3.34 V
0.41 V
0V
0V
0.69 V
1.74 V
0.03 V
3.48 V
3.49 V
0V
1.70 V
3.48 V
3.45 V
1.53 V
0.03 V
0V
0V
0V
0V
0V
0V
0V
0V
0V
3.49 V
0V
0V
5 – 2
XL-MP80H/MP80E
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
Q101
VOLTAGE
15.6 V
8.5 V
14.9 V
Q102
VOLTAGE
0.2 V
13.5 V
0.85 V
Q103
VOLTAGE
0V
0.85 V
0.56 V
Q104
VOLTAGE
-25.8 V
-28 V
-26 V
Q105
VOLTAGE
1.74 V
2.17 V
2.4V
Q201
VOLTAGE
2.76 V
32 V
3.3 V
Q251
VOLTAGE
0V
1.1 V
0V
Q252
VOLTAGE
-
0.4 V
0V
Q253
VOLTAGE
1.14 V
1.02 V
1.36 V
Q254
VOLTAGE
1V
0V
1V
Q256
VOLTAGE
0V
35 V
0V
Q257
VOLTAGE
-35 V
0V
-35 V
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
E
C
B
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
Q301
VOLTAGE
10.7 V
12.7 V
11.26 V
Q305
VOLTAGE
0V
4.16 V
0V
Q351
VOLTAGE
4.76 V
8.05 V
5.42 V
Q352
VOLTAGE
2.65 V
4.5 V
3.2 V
Q353
VOLTAGE
0V
0V
0.61 V
Q371
VOLTAGE
0.07 V
3.41 V
0.8 V
Q401
VOLTAGE
0V
0V
0.65 V
Q402
VOLTAGE
0V
0V
0.61 VV
Q403
VOLTAGE
0V
1.27 V
0.26 V
Q404
VOLTAGE
5.01 V
4.60 V
4.22 V
Q501
VOLTAGE
0V
8.3 V
0V
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
PIN
NO.
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
Q502
VOLTAGE
0V
0V
0.65 V
Q503
VOLTAGE
0V
8.4 V
0V
Q504
VOLTAGE
3.4 V
3V
2.6 V
Q505
VOLTAGE
8.2 V
8.5 V
8.49 V
Q506
VOLTAGE
8.5 V
8.44 V
7.76 V
Q507
VOLTAGE
8.4 V
0V
8.4 V
Q508
VOLTAGE
0.94 V
0.75 V
0.3 V
Q509
VOLTAGE
0V
0V
0.62 V
Q510
VOLTAGE
0V
0V
0V
Q511
VOLTAGE
0V
0V
0V
Q512
VOLTAGE
0V
0V
0V
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
E
C
B
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
Q513
VOLTAGE
0V
0.57 V
0V
Q601
VOLTAGE
0V
0V
3.13 V
Q602
VOLTAGE
0V
0V
3.13 V
Q603
VOLTAGE
2.67 V
3.21 V
3.22 V
Q701
VOLTAGE
0.01 V
0V
0.66 V
Q702
VOLTAGE
4.0 V
7.7 V
4.7 V
Q703
VOLTAGE
3.05 V
2.4 V
2.34 V
Q704
VOLTAGE
0.01 V
4.8 V
0.6 V
Q705
VOLTAGE
0.05 V
3.4 V
0.03 V
Q706
VOLTAGE
0V
3.3 V
-
Q708
VOLTAGE
0V
6.7 V
0V
Q801
VOLTAGE
2.9 V
1.8 V
2.2 V
PIN
NO.
PIN
NO.
PIN
NO.
E
C
B
PIN
NO.
C
E
C
B
E
C
B
E
B
Q803
VOLTAGE
3.4 V
7.2 V
4.1 V
Q804
VOLTAGE
3.4 V
6.2 V
4.1 V
Q805
VOLTAGE
3.5 V
7.9 V
4.1 V
Q806
VOLTAGE
3.4 V
5.1 V
4.1 V
5 – 3
XL-MP80H/MP80E
—MEMO—
5 – 4
AudioXL-MP80H/MP80EService ManualXLMP80HMarketE
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] NOTES ON SCHEMATIC DIAGRAM
XL-MP80H/MP80E
•Resistor:
To differentiate the units of resistors, such symbol as K and M are
used: the symbol K means 1000 ohm and the symbol M means
1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with “Fusible” is a fuse type.
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this symbol P
means micro-micro-farad and the unit of the capacitor without such
a symbol is microfarad. As to electrolytic capacitor, the expression
“capacitance/withstand voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
• Schematic diagram and Wiring Side of P.W.Board for this model
are subject to change for improvement without prior notice.
REF. NO DESCRIPTION POSITION
SW501 FOOL PROOF ON—OFF
SW502 CAM ON—OFF
SW701 VOLUME ON—OFF
SW702 ON/STAND-BY ON—OFF
SW703 FUNCTION ON—OFF
SW704 BASS/TRBLE ON—OFF
SW705 MEMORY/SET ON—OFF
• The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given.
1. In the tuner section,
( ) indicates AM
< > indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
( ) indicates the record state.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
• Parts marked with “ ” ( ) are important for
maintaining the safety of the set. Be sure to replace these parts
with specified ones for maintaining the safety and performance of
the set.
REF. NO DESCRIPTION POSITION
SW706 OPEN/CLOSE ON—OFF
SW707 TUNING UP ON—OFF
SW708 TUNING DOWN ON—OFF
SW709 PRESET UP ON—OFF
SW710 PRESET DOWN ON—OFF
SW711 TAPE REC/PAUSE ON—OFF
SW801 OPEN/CLOSE ON—OFF
[2] TYPES OF TRANSISTOR AND LED
C
FRONT
VIEW
B
2SK2158 Z
E
BCE
2SB1370 E+
B
2SC3052 F+
2SC5477++
2SA1235 F+
KTC2875 B
KRA102 S
KRC102 S
2SA1514 K
C
E
FRONT
VIEW
EC B
(S) (G) (D)
(1) (2) (3)
2SC5395 F+
KTA1266 GR
2SA2002 EF
LP3052A
FRONT
VIEW
SVC347SSELS6E14
6 – 1
XL-MP80H/MP80E
5
4
1
0
R
R
[3] WIRING SIDE OF PWB/SCHEMATIC DIAGRAM
FE301
FM FRONT END
A
J301
FM
ANTENNA
75 OHMS
B
C348
0.001
R336
0
R335
GND
0
C
AM LOOP
ANTENNA
CNP301
1
2
D
C347
0.01
C346
0.001
ANT
GND
GND
VCCVIF_OUT
5
6124783
+B +B
C364
0.1
C365
470/10
2
456
C305
12P(CH)
13
L301
L302
AM
Tracking
AMANT.
GND
IF_OUT
JR307
W301
0
0
JR308
JR305
R303
10K
0
C302
C303
1/50
0.1
SVC347S
C308
0.068
C318
0.01
D305
R311
R304
1K
C343
560P(CH)
100K
5P
C312
0.1
C399
C311
0.1
AM BAND
L306
COVERAGE fL
4
5
6
C366
0.1
+B
+B
R313
35
36
34 33 32 31 30 29 28
B01
B02
VCC2
GND2
FM-OSC
FMRF-IN
AMRF-IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
AM-OSC
LV23002
PLL(TUNER)/
GND1
AM-MIX
VCC1
AM IF-IN
IC301
FM IF-IN
FMRF-OUT
FM IF DET./FM MPX./AM IF
REG
FM-MIX
C310
R329
330
27P
R302
L303
(CH)
10µH
10
3
2
1
AMOSC.
W303
C350
0.1
TP301
R315
4.7K
JR310
0
C321
0.33/50
(CH)
C320
100P
10K
4.7K
R314
27 26 25 24 23 22 21 2019
PD
LP-IN
LP-OUT
LP-OUT
P-DET
P-CCMP
FM-DET
C326
C329
C325
22/50
0.001
C332
22K
R316
AGC
AMLOWOUT
L-OUT
R-OUTDICL
0.1
0.033
C335
C333
0
JR309
MPX-IN
DET-OUT
VSS
CE
C367
47/16
22/50
VDD
4.7/50
XOUT
2SC
C330
R319
100K
XIN
DO
Q3
22/50
0.1
R309
CF303
AM IF
C319
0
1/50
CF302
FM IF
100P
C337
100P
C336
100P
C334
0
JR306
3.3K
R312
C322
1/50
C323
0.47/50
C327
0.018
+B
C331
0.018
W302
C328
1/50
C324
1/50
E
FM IF
CF301
680
R378
F
R376
680
R375
2.2K
2SC5477++
Q371
R374
C372
0.1
100
R372
330
R371
G
33
C315
22/50
+B
C313
FM IF
CF304
L305
+B
AM IF
0
JR303
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 6-1
1
23456
Figure 6-2 SCHEMATIC DIAGRAM (1/10)
6 – 2
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