Sharp XL-MP45H User manual

– 1 –
XL-MP45H
SERVICE MANUAL
SHARP CORPORATION
No. SY379XLMP45H/
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
• Note for users in U.K.
Recording and playback of any material may require consent,
which SHARP is unable to give. Please refer particularly to the
provisions of Copyright Act 1956, the Dramatic and Musical
Performers Protection Act 1956, the Performers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.
MICRO COMPONENT SYSTEM
• In the interests of user-safety the set should be restored to its original
condition and only parts identical to those specified should be used.
XL-MP45H
XL- MP45H Micro Component System consisting of XL- MP45H
(main unit) and CP- XL45H (speaker system).
MODEL
This Service Manual is for the XL-MP45H, which is a minor modification model of the XL-MP35H. This Service Manual, therefore, describes
onlythechangedpointsfromtheServiceManual.PleaserefertotheXL-MP35HServiceManual(SY378XLMP35H/)togetherwiththisService
Manual. This speaker CP-XL45H is available in assembles only and may not be disassembled.
CONTENTS Page
SAFETY PRECAUTION FOR SERVICE MANUAL .......................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................ 3
NAMES OF PARTS .......................................................................................................................................................... 4
DISASSEMBLY................................................................................................................................................................. 5
ADJUSTMENT.................................................................................................................................................................. 7
NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................... 8
TYPES OF TRANSISTOR AND LED................................................................................................................................ 8
WAVEFORMS OF CD CIRCUIT....................................................................................................................................... 9
BLOCK DIAGRAM .......................................................................................................................................................... 10
SCHEMATIC DIAGRAM ................................................................................................................................................. 15
WIRING SIDE OF P.W.BOARD...................................................................................................................................... 24
PARTS GUIDE/EXPLODED VIEW

XL-MP45H
– 2 –
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 I 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 outer than
the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.
(2) TheLaserPowerOutputofthePickupinsidetheunitandreplacementservicepartshavealreadybeenadjustedpriortoshipping.
(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.
SAFETY PRECAUTION FOR SERVICE MANUAL
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
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 LASER-
STRÅLNING, SOM ÖVERSKRIDER GRÄNSEN FÖR
LASERKLASS 1.
ADVERSEL-SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING.
SE IKKE IND I STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
VARO!AVATTAESSAOLETALTTIINA NÄKYVÄLLE JANÄKYMÄTTÖMÄLLE
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.

– 3 –
XL-MP45H
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
SPECIFICATIONS
Specifications for this model are subject to change without
prior notice.
■General
■Amplifier
■Tuner
■CD player
■Cassette deck
■Speaker
Power source AC 230 V, 50 Hz
Power
consumption Power on: 26 W
Power stand-by: 0.9 W
Dimensions Width: 160 mm (6-5/16")
Height: 240 mm (9-1/2")
Depth: 247 mm (9-3/4")
Weight 2.5 kg (5.5 lbs.)
Output power PMPO: 30 W (total)
MPO: 15 W (7.5 W + 7.5 W) (DIN 45 324)
RMS: 10 W (5 W + 5 W) (DIN 45 324)
Output terminals Speakers: 4 ohms
Headphones: 16 - 50 ohms (recommended:
32 ohms)
Input terminals Video/Auxiliary (audio signal): 500 mV/47 k
ohms
Frequency range FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
Type Compact disc player
Signal readout Non-contact, 3-beam semiconductor laser
pickup
D/A converter 1-bit D/A converter
Frequency
response 20 - 20,000 Hz
Dynamic range 90 dB (1 kHz)
Frequency
response 50 - 14,000 Hz (normal tape)
Signal/noise ratio 50 dB (recording/playback)
Wow and flutter 0.3 % (DIN 45 511)
Type 10 cm (4") full-range speaker
Maximum input
power 10 W
Rated input power 5 W
Impedance 4 ohms
Dimensions Width: 145 mm (5-3/4")
Height: 240 mm (9-1/2")
Depth: 175 mm (6-15/16")
Weight 1.4 kg (3.1 lbs.)/each

XL-MP45H
– 4 –
NAMES OF PARTS
1.Disc Compartment
2.Disc Eject Button
3.Volume Control
4.Cassette Compartment
5.Headphone Socket
6.On/Stand-by Button
7.Function Selector Button
8.Disc or Tape Stop, Tuning Down Button
9.Disc Play or Pause, Tape Play,
Tuning Up Button
10.Bass/Treble Selector Button
11.Memory/Set Button
12.Tape Record Pause Button
13.Disc Track Down or Fast Reverse, Tape Rewind,
Tuner Preset Down Button
14.Disc Track Up or Fast Forward, Tape Fast Forward,
Tuner Preset Up Button
15.Timer Play Indicator
16.Tape Record Indicator
17.Sleep Indicator
18.Disc Random Indicator
19.Memory Indicator
20.RDS Indicator
21.Traffic Programme Indicator
22.Traffic Announcement Indicator
23.FM Stereo Mode Indicator
24.FM Stereo Receiving Indicator
25.MP3 Disc Indicator
26.Disc Play Indicator
27.Disc Repeat Indicator
28.AC Power Input Socket
29.FM 75 Ohms Aerial Socket
30.AM Loop Aerial Socket
31.Video/Auxiliary (Audio Signal) Input Sockets
32.Speaker Terminals
15
1
2
3
4
5
17 18 19 23
27
26 24
16 20 21 22
25
28
31
32
30
29
6
10
789
11 12 13 14
1.Full-Range Speaker
2.Speaker Wire
3.Remote Control Transmitter
4.On/Stand-by Button
5.Clock Button
6.Timer Button
7.Sleep Button
8.Disc Fast Reverse, Tuning Down,
Tape Rewind Button
9.Disc or Tape Play Button
10.Disc or Tape Stop Button
11.Disc Track Down, Tuner Preset Down Button
12.RDS ASPM (Auto Station Programme Memory) Button
13.RDS Programme Type/
Traffic Information Search Button
14.Treble Up and Down Buttons
15.Memory Button
16.Programme Clear Button
17.CD/MP3 Disc Button
18.Tuner and Band Selector Button
19.MP3 Disc Display Button
20.Direct Search Buttons
21.Volume Up Button
22.Disc Fast Forward, Tuning Up,
Tape Fast Forward Button
23.Disc Pause Button
24.Volume Down Button
25.Disc Track Up, Tuner Preset Up Button
26.RDS Display Mode Select Button
27.Tape Record Pause Button
28.Bass Up and Down Buttons
29.Disc Random Button
30.Disc Repeat Button
31.Video/Auxiliary Button
32.Tape Button
Buttons with " " mark in the illustration or highlighted in bold on the
right can be operated on the remote control only.
21
3
11
13
14
18
17
16
15
419
27
20
23
22
24
21
5
6
7
12
8
9
10 25
26
31
30
29
28
32

– 5 –
XL-MP45H
1 Top Cabinet 1. Screw .................. (A1) x5 5-1
2. Socket ................. (A2) x2 5-1,2
2 Side Panel (Left/Right) 1. Screw .................. (B1) x4 5-1
3 Rear Panel 1. Screw .................. (C1) x3 5-1
4 Main PWB/ 1. Screw .................. (D1) x4 5-2
Headphones PWB 2. Socket ................. (D2) x4
3. Socket ................. (D3) x1
5 Front Panel 1. Screw .................. (E1) x2 5-3
2. Socket ................. (E2) x2
6 Power PWB 1. Screw .................. (F1) x1 5-3
2. Screw .................. (F2) x2
7 Display PWB 1. Knob .................... (G1) x1 5-4
2. Screw .................. (G2) x8
8 Tape Mechanism 1. Open the cassette holder 5-4
2. Screw .................. (H1) x4
9 CD PWB(Note)/ 1. Screw .................. (J1) x4 6-1
Open Close Switch 2. Screw .................. (J2) x1
PWB 3. Socket ................. (J3) x3
4. Flat cable ............ (J1) x1
10 CD Mechanism 1. Screw .................. (K1) x4 6-2
DISASSEMBLY
STEP REMOVAL PROCEDURE FIGURE
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 offnylon bandsorwire holderswhere theyneed to
beremovedwhendisassemblingtheunit.Afterservicing
theunit, besureto rearrangethe leadswhere theywere
before disassembling.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
(F2)x2
ø3x8mm
(E1)x1
ø3x10mm (E1)x1
ø3x10mm (F1)x1
ø3x10mm
(E2)x1
(E2)x1
Power
PWB
Front Panel
Side Panel
(Right)
RearPanel
(C1)x1
ø3x10mm
(C1)x2
ø3x10mm
Side Panel
(Lift)
(A1)x1
ø3x10mm
(A1)x2
ø3x10mm
(A1)x1
ø3x10mm
(A1)x1
ø3x10mm
(A2)x1
(B1)x2
ø3x10mm
(B1)x2
ø3x10mm
Top Cabinet
CD PWB
(D1)x1
ø3x10mm
(D1)x1
ø3x10mm
(D1)x1
ø3x10mm
(D1)x1
ø3x10mm
(D2)x2
(A2)x1
(D2)x2 (D3)x1
Main PWB
Power PWB
Tape
Mechanism
PWB Headphones
PWB
(G2)x8
ø2.6x10mm
(H1)x4
ø2.6x10mm
(G1)x1
Front Panel Display PWB
Tape
Mechanism
Open
Cassette
Holder
Figure 5-1
Figure 5-2
Figure 5-3
Figure 5-4
Note:
After removing the connector for the optical pickup from the
connector,wraptheconductivealuminiumfoilaroundthefrontend
of the connector so as to protect the optical pickup from electro-
static damage.

XL-MP45H
– 6 –
(K1)x4
ø2.6x10mm
Top Cabinet
CD Mechanism
(J1)x4
ø2.4x10mm
(J2)x1
ø2.6x10mm
(J4)x1
(J3)x1
Top Cabinet
CD PWB
Open/Close
Switch PWB
CD Mechanism
Figure 6-1
Figure 6-2

– 7 –
XL-MP45H
MECHANISM SECTION
• Driving Force Check
Torque Meter Specified Value
Play: TW-2412 Over 80 g
• Torque Check
Torque Meter
Play: TW-2111 30 to 60 g. cm
Fast forward: TW-2231 55 to 140 g.cm
Rewind: TW-2231 55 to 140 g.cm
Specified
Value
Adjusting
Point Instrument
Connection
Test Tape
ADJUSTMENT
Specified Value
• Tape Speed
TUNER SECTION
MTT-111 Variable 3,000 ±Headphone
resistor in 90 Hz terminal
motor.(M901)
Check Point Instrument
Connection
Display
Frequency
87.5 MHz 87.5 MHz 3.4 V ±1.0 V TP301
108 MHz 108 MHz 7.8 V ±1.0 V TP301
• Check FM VT
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Frequency Frequency Display Setting/
Adjusting
Parts
Instrument
Connection
IF 450 kHz 1,602 kHz T351 *1
AM Band — 531 kHz (fL): T306 *2
Coverage 1.1 ±0.1 V
AM 990 kHz 990 kHz T302 *1
Tracking
fL: Low-range frequency
fH: High-range frequency
Signal generator: 400 Hz, 30%, AM modulated
• AM IF/RF
Adjusting
Parts Instrument Connection
Display
Frequency
98.00 MHz 98.00 MHz VR351*1 Input: CNP301
(30 dBµV) Output: Speaker
Terminal
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
*1. Adjust so that an output signal appears.
TAPE MECHANISM
M901
Tape
Motor
Variable
resistor
in motor
IC303
IC302
FE301
CF352
R336
T306
VR351
T302
T351
MAIN PWB
FM Mute
Level
AM IF
TP301
CNP301
ANTENNA
SOCKET
FM
AM
SO301
AM
Tracking
AM Band
Coverage fL
Figure 7-1 ADJUSTMENT POINT
Figure 7-2 ADJUSTMENT POINTS
*1. Input: Antenna Output: Speaker terminal
*2. Input: Input is not connected Output: TP301
• Setting the Test Mode
Keeping the REW/REV button and BASS/TREBLE button
pressed, turn on POWER. Then, the frequency is initially set
in the memory as shown in Table. Call it with the PRESET
button to use it for adjustment and check of tuner circuit.
Preset No. FM STEREO Preset No. AM
1 87.50 MHz
2 108.00 MHz
3 98.00 MHz
4 90.00 MHz
5 106.00 MHz
11~25 ––––
6 531 kHz
7 1,602 kHz
8 990 kHz
9 603 kHz
10 1,404 kHz
Preset No. FM MONO
26 106.00 MHz
27 90.00 MHz
28 98.00 MHz
29 108.00 MHz
30 87.50 MHz

XL-MP45H
– 8 –
SW700 VOLUME ON—OFF
SW701 ON/STAND-BY ON—OFF
SW702 FUNCTION ON—OFF
SW703 STOP/CLEAR,TUNING DOWN ON—OFF
SW704 PLAY/CD PAUSE,TUNING UP ON—OFF
SW705 BASS/TREBLE ON—OFF
SW706 MEMORY/SET ON—OFF
•The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis 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.
NOTES ON SCHEMATIC DIAGRAM
•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
electrolyticcapacitor,theexpression“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 POSITIONREF. NO DESCRIPTION
SW707 REC/PAUSE ON—OFF
SW708 REW/PRESET DOWN ON—OFF
SW709 FF/PRESET UP ON—OFF
SW801 CD LID OPEN/CLOSE ON—OFF
SW901 FOOL PROOF ON—OFF
SW902 CAM ON—OFF
ECB
(1) (2) (3)
FRONT
VIEW
FRONT
VIEW
BCE
FRONT
VIEW
2HA1015 GR
2HC1815 GR
2SC2001 K
HSB562 C
KRA102 M
KRC102 M
KRC104 M
KRC107 M
2SC380 O
2SA952 K KTC2026 Y MPG3372X SVC348S
1 2 3
TYPES OF TRANSISTOR AND LED
Figure 8 TYPES OF TRANSISTOR AND LED

– 9 –
XL-MP45H
WAVEFORMS OF CD CIRCUIT
T
FDO
TDO
Stopped
CH1=500 mV
DC 10:1 CH3=500 mV DC 10:1 500 ms/div
(500 ms/div)
NORM:20 kS/s
1
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.0 V Main : 100 K Zoom : 2 K Mode : AUTO Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.000 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH1
v/DIV
500 mV
1IC801 21
2IC801 20
T
FDO
DRF
TE
Stopped
CH1=500 mV
DC 10:1 CH2=10 V DC 10:1 CH3=1 V DC 10:1 500 ms/div
(500 ms/div)
NORM:20 kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.0 V Main : 100 K Zoom : 2 K Mode : AUTO Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
-3 div -1 div 0 div +1 div +3 div
CH Position To
CH2
Position
0.20 div
1IC801 21
3IC801 67
4IC801 15
Vp-p=1.0 V~1.3 V
0.5 mV/div,0.5 µsec/div
5
IC801 4
T
T
TE
DRF
Stopped
CH1=10 V
DC 10:1 CH2=1 V DC 10:1 100 ms/div
(100 ms/div)
NORM:100 kS/s
2
1
=Record Length=
Smoothing : ON CH1 : 0.0 V
CH2 : 0.00 V Main : 100 K Zoom : 2 K Mode : NORMAL Type : EDGE CH1
Delay : 2.924 ms
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter= =Offset=
3
IC801 67
4
IC801 15
T
T
FDO
SPDO
Stopped
CH1=200 mV
DC 10:1 CH2=500 mV DC 10:1 500 ms/div
1999/04/07 09:51:15
(500 ms/div)
NORM:20 kS/s
2
1
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.000 V Main : 100 K Zoom : 2 K Mode : NORMAL Type : EDGE CH2
Delay : 2.924 ms
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter= =Offset=
1
IC801 21
6
IC801 22
T
FDO
PDO2
PDO1
Stopped
CH1=500 mV
DC 10:1 CH3=1 V DC 10:1 CH4=1 V DC 10:1 500 ms/div
(500 ms/div)
NORM:20 kS/s
1
4
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.0 V Main : 100 K Zoom : 2 K Mode : AUTO Type : EDGE CH2
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH1
v/DIV
500 mV
1999/04/05 17:33:17
1IC801 21
7IC801 73
8IC801 74
T
T
DOUT
Stopped
CH1=2 V
DC 10:1 500 ns/div
1999/04/07 09:25:28
(500 ns/div)
NORM:200 MS/s
1
=Record Length=
Smoothing : ON CH1 : 0.00 V
CH2 : 0.00 V Main : 1 K Zoom : 100 Mode : NORMAL Type : EDGE CH1
Delay : 2.887 ms
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter= =Offset=
9
IC801 39
T
T
DATA
DATACK
LRSY
Stopped
CH1=2 V
DC 10:1 CH2=2 V DC 10:1 CH3=2 V DC 10:1 5 µs/div
(5 µs/div)
NORM:100 kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.00 V
CH2 : 0.00 V Main : 5 K Zoom : 100 Mode : AUTO Type : EDGE CH3
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH3
v/DIV
2 V
1999/04/05 20:50:17
10 IC801 58
IC801 59
IC801 60
11
12

XL-MP45H
– 10 –
REC MUTE
Q105
Q106 REC
STER
E
SD
150K
150K
MUTE ALC
+
-
-
+
3 1
5
11 12
8
10
2
IC102
BA3311L
6 7
9
NF
L-IN
R-IN
NF
L-OUT
ALC
R-OUT
Q151 Q152
L151
Q153
Q171 Q172 REC
SWITCHING
Q101-Q104
SWITCHING
1
IC101
IC101
HEAD SELECTOR
BA3126N
2
3
4
5
6
9
REC SW
P/B SW
CONT
P/B SW
REC SW
8
7
A-12V
L-CH
R-CH
R-CH
L-CH
L-CH
L-CH
A-GND
A-GND
A-GND
R-CH
R-CH
ERASE
CNP101
CNW101
CNS901
P.F
CAM SW
Q906
BIAS
REC
RUN_PLS
MOT SOL U_CON 5V
A_12V TAPE SW
1
2
3
4
5
6
7
PHOTE INTERRUPTER
SW901
FOOL
PROOF
SW902
CAM
1
2
+
-
2
1
M
M901
TAPE MOTOR
SOLENOID
SOL901
REC
L
TAPE
TO DISPLAY PWB
Q904
Q902
A_12V
A_12V
SWITCHING
B-CAN(NC)
10
123456789
CNP703
M_GND
Q903
Q905
Q901
CF352 CF351
FM IF
24 22
21 20 19
18 17
16
15
14
13
12
11
10
9
8
7
6
5
4321
IC303
LA1832S
22
21
20 17
16
15
14
13
12
1 2 3 4 5 6 7 8
8
9
7
10
6
11
5
12
4
13
3
14
2
15
1
16 9 10
11
IC302
LC72131
IC521
LC72723M
X352
X351
456kHz
L354
LOWPASS
FILTER
X IN NC CE DI CL
MO/ST
FM
FM
DO
CE DI CL DO
FM IN
X OUT
DATA
CLE
VSS
AOUT
VDD
AM IN
NC
IF IN
IF REQ
SW
VCC
AM ANT
AM OSC.
VD301-1
SVC348S
VD301-2
SVC348S
VR351
10K(B)
FM MUTE LEVEL
23
T351
+5V
AM IF
MUTE
R-MUTE
MO/ST
L-CH OUT
R-CH OUT
MPX VCO
AM LOW CUT
FM/AM OUT
MPX IN
AM OSC OUT
FM AFC
AM RF IN
VSM
AM OSC INAM MIX OUT
AM IF IN GND REG FM IF IN
SD
STEREO
FM DET
PHASE
(AM/FM)
IF OUT
PHASE
FM IF DET./FM MPX./AM IF
FE301
FM FRONT END
4.5MHz
X521
456 kHz
Q351
SWITCHING
R_MUTE
PLL (TUNER)
RDS CIRCUIT
ZD351
Q360
FM+B
FM+B
A_12V
FM IF
AM OSC OUT
AM MIX OUT
A_GND
+5V
+5V
A_12V
D_GND
REC BIAS
CONT
SWITCHING
SWITCHING
RUN PLS
SOL
M_12V
U_CON5V
MOT
SWITCHING
SWITCHING
SWITCHING
TAPE MOTOR
DRIVER
SOLENOID
DRIVER
BIAS OSC SWITCHING
AM IF IN
1
2
3
4
5
6
7
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
L-CH
R-CH
ERASE
HEAD
RECORD/
PLAYBACK
HEAD
T302
T306
1
2
3
CF302
1
2
3
IC102
REC./P.B.
EQUALISER
AMP.
21345678
10.7MHz
FM IF
CF301
1
2
3
10.7MHz
TP301
1
2
AM
FM
CNP301
SO301
FM
ANTENNA
SOCKET
L341
BALUN
Q301
Q521
Figure 10 BLOCK DIAGRAM (1/5)

– 11 –
XL-MP45H
0
5
0
6REC
STEREO
SD
CE
CD+B
P MUTE
P-STB
P-CONTR
P-CONTR
DI
CL
DO
FM ST
SD
123456
CD L
CNP605
TO CD SERVO PWB
A_12V TAPE SW
REC L/R CH
TAPE L/R CH
W
B
TO DISPLAY
PWB
10
8
9
SO601
SPEAKER
TERMINALS
J601
HEADPHONES
10
IC601
LA4600
POWER
AMP.
IC681
KIA7805API
74
2
13
VCC
2
L-IN
R-IN
L-CH OUT
R-CH OUT
P-STB
MUTE
Q602
Q601
VSS
VDD
IC401
LC75342M
15 14 13 12 11 10 9
17 18 19 20 21 22 23 24 25 26 27 28 29
16
8 7 6 5 4 3 2 1
CE DI
30
CL
LOGIC
TUN L
TAPE L
CD L
AUX L
AUX R
TAPE R
TUN R
CD R
1
2
3
4
5
6
7
8
9
10
VSM
DATA
CLE
11
12
13
CNS704
SO401
VIDEO/AUX IN
M
UTE
U
TE
0
A_12V
TO
DISPLAY
PWB
CNS652
Q607
Q605
Q604
Q606
Q608
Q603
Q610
Q611
Q609
VOLTAGE
REGULATOR CD+B
CD_6.2V
MECHA 12V
(M_12V)
AUDIO 12V
(A_12V)
A
_12V
R-CH OUT
L-CHOUT A_12V
USWD_5R6V
D_GND
A-GND
CD R D-GND
CD_6.2V
M_GND
L-CH
L-CH
+
+
2
1
2
1
GND
GND
CNP652
T.F
D651~D654
VOLTAGE REGULATOR
SO651
AC POWER
INPUT SOCKET
AC230V,50Hz
CNP707
T651
POWER
TRANSFORMER
F651
T2.5A L 250V
F653
T1.25A L 250V
8
1
3
9
6
5
2
1
REC R CH
REC L CH
NC
FUNCTION/VOLUME EQUALISER
LINE
FILTER
LF651
Figure 11 BLOCK DIAGRAM (2/5)

XL-MP45H
– 12 –
Figure 12 BLOCK DIAGRAM (3/5)
+6.2V
CONSTANT
VOLTAGE
Q803
Q804
LASER
DRIVER
Q801
Q802
CD PICKUP UNIT
IC801
LC78646E
SERVO/SIGNAL CONTROL VDD
LDD
LDS
TRACKING COIL
FOCUS COIL
PICKUP IN
SLED
MOTOR
SPINDLE
MOTOR
MM
XVDD
RVDD
LVDD
RFVDD
X801
16.9344 MHz
VCC VCC
IC802
LA6548D
FOCUS/TRACKING/
SPIN/SLED
DRIVER
XIN
XOUT
*RES
*WRQ
DO
DI
CL
CE
TIN2 F
TIN1 E
FIN2 B
FIN1 A
TDO FDO
SPDO
SLDO
CONT4
VDD5
LCHO
80
79
75
20
5
1
MUTE
230
REF-IN
REG_TR RESET
REG_OUT
29
972224
41
47
46
38
VVDD
77
10
VREF
11
9
8
7
21
5
11
10
14
15 16
6
20
26
25
61
62
63
695143 444037196
72 25
23
2221
27 4 1219
42
RCHO 45
68
64
65
66
DRF 67
4849
ADAVDD
18
~~
+
––
+
+5V
E
VCC
VC
D
A
B
C
F
LD
MD
123
CD L
TO MAI
A-GND
CD R
D
-
GND
54 55 56 57 58 59 60
DATA
DATACK
IGMOUT
ASRACK
ASDFIN LRSY ASDACK
50
FSX/16MIN
52
C2F
0+SLD
0-SLD
0+SPD
0-SPD

– 13 –
XL-MP45H
Figure 13 BLOCK DIAGRAM (4/5)
TO MAIN SECTION
Q951
IC951
LC78684
MP3 DECODER
CNP702
8
10
9
6
7
4
5
2
3
1
~
~~ ~~
~
~
~~~~
~~
~
23456
CNS605
O
MAIN PWB
A GND
CD R D-GND
CD_6.2V
M_GND
DRF
CE-MP3DSP
FSYNC
WRQ
CD-CMD
CD-DATA
CD-CLK
RESET
CE-CDDSP
CLID-SW
CL
CMDIN
RES
CE
SFYNC
CMDOUT
CKOUT
C2FIN
ADLRCK
ADBCK
ADDATA
LRSY
DATACK
DATAIN
80 79 78 76 75 74 73 66
7
CKOUT
9
5
4
3
2
1
CD LID OPEN/
CLOSE
AVSS
PW
VSS
VSS
VSS
VSS
VSS
VSS
SFSY
SBSY
14
13
12
10
20
8
6
22
32 VSS
52
62 VSS
69
DVDD6
68
DVDD1
11
DVDD3
31
DVDD4
51
DVDD2
21
DVDDS
61
VPRF AVDD
1716
MADRS0
MADRS7 53
60 24
21
32
27
MADRS8
MADRS9 49
50
OE
UCAS
LCAS
WE
RAS
OE
UCAS
LCAS
WE
RAS
41
42
43
44
45
18
17
35
34
33
MDATA7
D0~D15
A0~A9
MDATA0 23
30
2
5
7
10
41
44
46
49
MDATA15
MDATA8 33
40
GLT4160+
DRAM
VCCV
VCC
VCC
VSS
6
1
25
26 45 50
I/O9
I/O12
I/O13
I/O16
A0
A3
A4
A9
I/O8
I/O5
I/O4
I/O1
SW801
IC952

XL-MP45H
– 14 –
TO MAIN SECTION TO CD SECTIONTO MAIN SECTION
D711~719
LED
SW700
VOLUME
83
86
514 38
79 445356
Q702
Q701
Q703
Q704
~ ~
~39 42 ~
S0
S0 S33
C0 C3 C3 C0
S23 S24
S33
COM0
COM3
2
96
100
5
4
3
98
94
1
97
24
23
8
7
9
6
34
10
33
32
213637384239402926 3531 1130
89
80
55
43
14 VSS1
VSS3
90 VDD3
VSS2
V3
USWD_5.6V
13
12
15
16
19
18 KEY1
CF2
CF1
XT1
XT2
KEY2
SW702-SW704
SW701
SW707-SW709
SW705,SW706
KEY
POWER
28 10
9
8
87
88
22
13
12
11
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
SW-TAPE2_STATE 0-SOL_TP2
0-MOTOR_TP 0-REC/PB
1-TP_RUN_PULSE 0-BIAS_TP
(B-CAN)
BACK_LIGHT
JOG(B)
JOG IRQ
SYS_STOP RESET
SYS_STOP
1 2 3
REMOTE
SENSOR
GP1U281X
RX701
2
1
54
17
VDD2
VDD1
D_GND
A-12V
U_CON5V
0-SOL_TP
0-MOTOR_TP
0-REC/PB
0-BIAS_TP
(B-CNA)
1-TP_RUN_PULSE
SW-TAPE2_STATE
0-MAIN_CS(TU/VOL)
0-MAIN_CS(TU/VOL)
1-TUNER_SD
1-TUNER_SD 1-FM_ST
1-FM_ST
1-PLL_DATA
1-PLL_DATA
0-MAIN_CLK
0-MAIN_CLK
0-MAIN_DATA
0-MAIN_DATA
0-CD_ON
0-CD_ON 0-P_MUTE
0-P_MUTE 0-PA_ON
0-PA_ON 0-POWER
10
9
8
7
6
5
4
3
2
1
0-POWER
CLID-SW
CE-CDDSP
RESET
CD-CLK
CD-DATA
CD CMD
WRQ
FSYNC
CE-MP3DSP
DRF
0-CD_CE
0-MP3_CE
1-CD_DRF
SW-CLID
0-CD_CLK
0-CD-CMD
1-CD_DATA
CD/RST
1-CD_WRQ
1-MP3_FSYNC
1-RDS-CLK
1-RDS-CLK 1-RDS-DATA
1-RDS-DATA 1-RDS_VSM
1-RDS_VSM
IX0073SJ
SYSTEM
MICROCOMPUTER
8MHz
32.768kHz IC701
LCD701
FL DISPLAY
X701
X702
CNS704
CNS702
CNP704 CNP702CNP703
CNS703
CNS707
TO POWER
Figure 14 BLOCK DIAGRAM (5/5)

– 15 –
XL-MP45H
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 8.
4.8V 4.8V 4.8V
4.8V
9.6V
5V
4.8V
4.8V 4.8V 4.8V 4.8V 4.8V
4.8V 4.8V 4.8V
4.8V 4.8V 4.8V 4.8V 4.8V 4.8V
0V 0V 0V 0V
1.7V
12.9V
1.4V
9.5V
1.4V
0V
20V
0V
9.8V
9.8V
7.8V 0V
13V
20V
12.3V
11.7V 20V
20V
11.7V
4.5V
0V
7.8V
7.5V
20V6.2V
0V
0V
+B
+B +B
+B+B
+B+B
+B
+B
+B +B
+B
+B
6.8
10
9
8
6
5
3
2
1
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
16
17
18
19
20
21
22
23
24
25
26
27
28 29 30
4
7
1 2 3 4 5 6
2
1
5 5
1 1
A_GND CD_L CD_R M-GND CD-6.2V D-GND
CD TEST POINT
CL VDD VREF
ROUT RBS2 RBS1 RTRE RIN RSL0
R4 R3 R2 R1 L1
L2 L3 L4
LSL0
LIN
LTRE
LBS1 LBS2
LOUT
TEST
VSS
CE
DI
CE
DI
CL
VIDEO/AUX IN
L-CH
R-CH AUX R
TAPE R
TUN R
CD R
AUX L
TAPE L
TUN L
CD L
T1.25A L 250V
MAIN PWB-A1(1/3)
SPEAKER BOX
SPEAKER BOX
TWEETER
TWEETER
WOOFER
WOOFER
SPEAKER TERMINAL
4 Ohm
+
+
–
–4 Ohm
R-CH
R-CH
L-CH
L-CH
10
9
5
4
3
2
1
HEADPHONES
2
1
2
1
31
2
1
2
1
2
1
2
B1GND
+B1
TRANSFORMER
POWER
POWER PWB-B
HEADPHONES PWB-A4
AC INPUT
D_GND
USWD_5.6V
TO MAIN
CHASSIS
CHASSIS
GND
CHASSIS
GND
TO TAPE
MECHANISM
CHASSIS
When Servicing,
Pay attention as the area enclosed
by this line ( ) is directly
connected with AC main voltage.
AC 230V,50Hz
AC 230V,50Hz
AC POWER SUPPLY CORD
1
1
2
2
2
3
3
3
3
21
1
P21 8 - G
CNS605
FROM CD SERVO PWB
P22 1 - G
CNS707 TO DISPLAY PWB
T.F
1 TUN R
2TUN L
4
3
5CE
DI
CL
7P_MUTE
6P_STB
21 M-GND
A-12V
20
M 12V
19
18 D-GND
17 A_GND
13
14
15
16
TAPE R
TAPE L
REC R
REC L
CD+B
11
12
10 D-GND
A-12V
9
8A_GND
P19 12 - F
TO MAIN PWB(3/3)
TAPE SECTION P17 12 - F
TO MAIN PWB(2/3)
TUNER SECTION
LINE
FILTER
27K
27K
3.3K
3.3K
2.7K2.7K
330P
0.001
330P
10/16
10/16
10/16
10/16
1K
1K
1K
33/16
3.9K
1N4004
100/16
10/16
0.1
0.1
0.0027
1N4004
1N4004
6.8K
10K
680
680
2.2/50
10/16
1K
1K
1K
1K
10/16
10/16
10/16
10/16
LC75342M
FUNCTION/ VOLUME EQUALISER
10K
3.9K
0.1
0.1
10/16
0.0027
2.2/50 6.8K
10/16
1K
1K
1K 1K
3.3K
4.7/25
4.7/25
330P
0.001
0.0033
22/25 100/25
0.001
1N4148
1000/25
1K
1000/25
6.8K
0.022
2HC1815 GR
6.8K
33/16
2HC1815 GR
6.8K
0.001
10K
10K
10K
10K
4700/25
LA4600
POWER
AMP.
820P
10µH
330
330
470/25
1K
KRA102 M KRC107 M
DZ130BSA
100
2HC1815 GR
47
22K
0.022
1N4148
100/25
1N4148
33K
KTC2026 Y
22K
0.022
10/1610/16
KTC2026 Y
47
0.1
10K
KTC2026 Y
47/16
DZ7.5BSC
1K
KRC107 M
FUSE
FUSE
KRA102 M
10K
1K
2HC1815 GR
1N4148
1N4004
1N4004
1N4004
1N4004
0.1
0.1
0.1
0.1
T2.5A L 250V
0.47/50
1N4004
KIA7805API
VOLTAGE REGULATOR
0.047
0.047
4700/25
0.001
0.001
0.001
0.0022 0.0022
6.8 0.022 0.022 0.022
0.022
330P
330P
3µH
0.01 0.01
820P
820P
3µF
SO401
R406
R405
R402
R401
R408
R407
C411
C340
C412
C402
C404
C406
C408
R425
R424
R423
C429
R439
D403
C430
C425
C423
C421
C419
D401
D402
R437
R435
R404
R403
C417
C415
R421
R417
R415
R419
C407
C405
C403
C401
IC401
R436
R440
C424
C422
C426
C420
C418 R438
C416
R418
R416
R420
R422
R634
C606
C605
C698
C603
C699
C608 C607
C697
D601
C613
R608
C614
R615
C615
Q602
R616
C601
Q601
R607
C604
R604
R601
R602
R603
C616
IC601
SO601
CFW601
CFW601A
C663
L603
R662
R661
J601
CNW652
CNS652
C620
R629
Q610 Q611
ZD601
R628
Q603
R620
R621
C622
D603
C621
D602
R617
Q605
R623
C624
C625
C623
Q604R619
CNP605
C629
R627
Q607
C626
ZD602
R624
Q609
Q608
R625
R630
Q606
D604
F653
CNP652
D654
C652
C653
D651
D653
D652
C651
C654
F651
T651
C689
D688
IC681
C688
C665
SO651
C683
C660
C696
C695
CNW653
CNW654
CNP653 CNP707
LF651
L602
C618 C617
L601
R632 C632 C636 C633
C637
C693
C694
C640
C639
CFW602
R631
C661
C662
FM SIGNAL
AUX SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
CD SIGNAL
POWER SECTION
Figure 15 SCHEMATIC DIAGRAM (1/9)

XL-MP45H
– 16 –
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 8.
24 23 22 21
1 2 3
22 21 20
1 2
CHASSIS
GND
AM LOOP
ANTENNA
FM
75 OHMS
FM ANTENNA
SOCKET
2
1
(CH)
(UJ)
VT
AM RF
REG
AM MIX OUT
OUT
IN
IN
IN
FM IF
FM AFC
AM OSC AM OSC
AOUT
VSS
X OUT
X IN
AM ANT
AM OSC
AM TRACKING FM MUTE LEVEL
AM BAND COVERAGE fL
FM IF
FM IF
A
M
1
TP301
2
3
1
2
3
8 7 6 5 4 3 2 1
16
15
14
13
12
11
10
9
8
7
6
5
4321
MAIN PWB-A1(2/3)
0.001
0.001
0.001
0.022
0.001
68K
27P
560P
0.022
0.022
1N4148
1N4148
1N4148
1N4148
BALUN
0.047
0.022
12P
SVC348S
1mH
8.2K
33P
0.022
3.3/50
0.022
330P
33P
10/16
0.022 5.6K
10K
330
330
0.022
10K
1
/
15P(CH)
0.001
4.5MHz
1K
LC72131
PLL(TUNER)
12P(CH)
0.022
FM FRONT END
68
82
2.2µH
0.022
2SC380 O
33
680
6.8K
330
0.022
680
180
0.022
4.7K 100/16
1K
1K
0.1
22P
22P
560P
1N4148
47K
0.022
0.1
330P
456 kHz
47/16
0.022
2.2µH
10K
2HC1815 GR
10/16
56K 56K
(CH)
(CH)
LC72723M
RDS
CIRCUIT
0.022
CNP301
C376
C301
C388
C390
C302
T306
R323
C334
C335
C337
C329
D301
D303
D304
D302
L341
T302
C331
C332
C330
VD301
VR351
L353
R358
C343
C361
C362
C360
C363
T35
1
C378
CF302
C344
C352
C351 R351
R336
R382
R386
C397
C394
R381
C
3
C382
C384
R374
IC302
X352
C381
C350
L342
C346
C345
R369A
R369B
R345 C348
R343
C341
C347
R346
CF301
R344
R348
R347
R349 Q301
SO301
R528
R529
C527
C525
C526
X521
IC521
C524
D521
R521
C537
C523
C522
C535
C536
L521
R532
Q521
C521
R533 R534
FE301
5V
2.1V
2.1V
5V
2.5V
(2.7V)
2.1V
(2.7V)2.1V
2.6V2.6V
0V
01V
+B
+B
+B
+B
+B
+B
9V
9.5V
0.8V
2.5V
1.3V 1.3V
0.6V
2.3V
0V 0V 0V 0V
0V
5.1V
5.1V
2.5V
2.5V
2.5V
2.5V 2.5V
2V
2.5V
5.1V
AM SIGNAL
FM SIGNAL
TUNER SECTION
Figure 16 SCHEMATIC DIAGRAM (2/9)

– 17 –
XL-MP45H
78 9 10 11 12
9
8
7
12
13
11
10
6
5
4
3
2
1
CL DO
STEREO
DI CE
P MUTE
P-STB
CD+B
CD+B
FM ST
SD
RDS CLK
RDS DATA
VMS
VMS
DI
CE
DO
CL
P23 12 - E
CNS704
TO DISPLAY PWB
P15 1 - F
TO MAIN PWB(1/3)
22 21 20 19 18 17 16 15 14 13
3 4 5 6 7 8 9 10
11 12
22 21 20 19 18 17 16 15 14 13 12
1 2 3 4 5 6 7 8 9
10 11
PD
T
FM FM MUTE
VSM
AM RF
(AM/FM) PHASE
PHASE IF OUT VCC FM DET STEREO SD GND AM IF
REG
OUT
OUT
OUT
IN
IN
CUT
AM LOW
FM/AM
MPX VCO
MPX IN
MO/ST
L-CH
R-CH
FM AFC
CE DI CL DO MO/ST IF REQ
IF IN
AM IN
FM IN
VDD
AIN
AOUT
VSS
X OUT
X IN
3
1
2
FM IF
AM IF
1
2
3
LOW PASS
FILTER
1
2
3
4
5
6
7
8
9
10
11
12
TUN L
TUN R
CE
DI
CL
P_MUTE
P_STB
A_GND
D-GND
A-12V
0.022
0.022
0.022
0.001
4.7/25
0.022
2.7K
1/50
456kHz
1/50
1/50
12K
1/50 1K 470K 12K
56P
KRC104 M
0.022
0.022
6.8K
6.8K
LA1832S
FMIFDET./FMMPX./AMIF
2.2/50
3.3K
1/50
0.001
1/50
22P(CH)
10K
100/10
270
0.022
0.022
0.022
330P
2.2K
0.022
47/16
10K
1/50
1.5K
0.001
10/16
0.022
100µH
330P
0.01
2.2K
5.6K
1K
1K 1K 1K 1K
1.8K
4.7K
C
72131
T
UNER)
10K
100µH
0.022
100/10
DZ5.1BSB
390
390
2HA1015 GR
5.6K
6.8K
5.6K
47/16
0.022
1K
47K
0.022
5.6K
1N4148
CNP704
C361
C363
C366
C364
C365
X351
R350
C367
C372
C371R361
C368 R356 R357
R362
C369
C374
C373
Q351
R363
R364
IC303
C357
R355
CFW301B
C358
C356
C370
C355
R376
C398
R353
C354
CF351
C399
C353
CF352
T351
C378
R366
C394
R381
C393
R380
C392
C380
C387
L351
C386
C385
R379
R377
R393
R374 R373 R372 R371
R359
R360
C
302
R365
L352
C395
C396
ZD351
R391
R392
Q360
R385
R384
R383
C391
C350
R352
R395
C383
R387
D308
L354
(0V)
4.7V
1.3V
1.3V
4V
(2.2V)
2.3V
2.1V
(0V)
2.1V2.1V
0V
5V 5V
(4.3V)
2.9V
0V 5V
(1.2V)
3.8V
(1.9V)
3.8V
(2.7V)
2.1V
(2.7V)2.1V
0.6V
(0.9V)0V
2.3V
5.2V (0V) 2.6V
(2.6V)
0V
0.9V 0.9V
2
.
6V2
.
6V
0V
5.1V 4.8V 0.1V 0.1V
3.9V
(0V)
(0V)
3.5V
3.7V
(11.4V)
1.7V
0V
10.9V
10.8V
11.7V
+B
+B
+B
+B
+B
+B
Figure 17 SCHEMATIC DIAGRAM (3/9)

XL-MP45H
– 18 –
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 8.
(ML)
9
8
7
6
5
4
3
2
1
1K
7
6
5
4
3
2
1
R-CH
L-CH
TAPE MECHANISM PWB-C,D(217-10,11)
TAPE MECHANISM
Ass'y (217)
ERASE
HEAD
HEAD
RECORD/PLAYBACK
SOLENOID
TAPE
MOTOR
–
+
FOOL PROOF
CAM PHOTO
INTERRUPTER
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
7
6
1
2
3
4
5
7
6
M 1
2
1
2
1
1
1
2
2
2
3
1
23
3
3
MAIN PWB-A1(3/3) TAPE SECTION
BA3126N
HEAD SELECTOR
82P
1K
0.001
330
10K
0.001
2.7K
82P
820P
KRC102 M
KRA102 M
2HA1015 GR
2SC2001-K
330µH
10K
10K
KRC104 M
100/16
0.0039
47K
56
0.027
100K
15K
2HC1815 GR 2HC1815 GR 22K
15K
4.7/25
0.0022
4.7K
100
4.7K
5.6K
4.7/25
2HC1815 GR 2HC1815 GR
4.7/25
22K
100
0.0022
4.7K
100K
10/16
4.7K
4.7/25
33K
18K
HSB562-C
0.001
56K
1N4148
3.3/50
47K
270 KRC107 M
1.
5
10K
CNW101
CNP101
IC101
C122
R102
C102
R138
R140
C101
R139
C121
R101
C131
Q172
Q171
Q152
Q151
L151
R155
R153
R154
Q153
C155
C153
R151
C154
R152
R116
Q101 Q103 R117
R115
C129
C115
R123
R119
R121
R126
C113
Q102 Q104 C130
R118
R120
C116
R124
R125
C117
R122
C114
CNW901 CNS901
R910
R909
Q902
C901
R902
D901
C903
C902
R903
R904 Q903
R
9
R905
SW901(217-7)
SW902(217-8)
M901(217-9)
SOL901(217-4)
(10V)
(8.3V)
8V
0.3V
0V
0V
0V
0V
0V
0V
0V
(11.7V)
11.7V
(0V)
0V
(0V)
2.6V
(0V)
7.8V
8.3V
(0V)
4.7V
(0V)
1.5V
0.3V 0.3V
(0.8V) (0.8V)
(0.8V)
(0.8V)
0.3V
0.3V
(0V)
1.5V
11.9V
11.8V
3.2V
0.7V 0V
+B
Figure 18 SCHEMATIC DIAGRAM (4/9)

– 19 –
XL-MP45H
78 9 10 11 12
10
9
8
5
2
3 4 1
11 6
7
12
10
987654321
BIAS
TAPE_SW
U_CON5V
SOL
MOT REC
RUN_PLS
A-12V
A-12V
M 12V
M 12V
TAPE R
TAPE L
REC R
REC L
1
11
1
2
2
2
2
3
3
3
3
P23 12 - E
CNS703
FROM DISPLAY PWB
21
20
19
18
17
16
15
14
13
P15 1 - C
TO MAIN PWB(1/3)
M-GND
D-GND
A_GND
2
HA1015 GR
150
150
10K
10K
C
104 M
56
15K
K
4.7/25
.0022
4.7/25
K
0.0022
BA3311L
REC./P.B.
EQUALISER
AMP.
150K
3.9K
10K
47/16
120
0.015 10/16
330P
330P 270P
0.015
150K
270P
10K
120
10/16
3.9K
47/16
330
2.2/50
2.2K
1K
4.7K
3.3K
22/16
100K
2HC1815 GR
100/25
0.022
3.3K
2.2K
1N4148
2HC1815 GR 4.7K
HSB562-C
56K
HSB562-C
1N4148
100/25
10K
0
7 M
1.5K
10K
1.5K
0.022
KRC102 M
KRC102 M
0.022
1N4148
KRA102 M
1N4148
Q152
R156
R157
R155
R154
Q
153
R116
7C129
C
115
C130
8
C116
IC102
R105
R109
R107
C107
R103
C109 C111
C103
C104 C105
C110
R106
C106
R108
R104
C112
R110
C108
R141
C123
R111
R133
R131
R113
C126
R134
Q105
C125
C118
R114
R112
D104
Q106 R132
CNP703
Q902
R902
Q905
D902
C903
R907
3
R901
R905
R906
C905
Q901
Q904
C904
D904
Q906
D903
8.3V
(0V)
4.7V
10.1V
4.6V
4.6V
0V
0V
0V
0V 0V
0.6V 0.6V
10.2V
0.7V
0.7V
11.7V
11.7V
0V
4.4V
0.6V
4.9V
4.9V
11.8V
11.7V
11.9V
11.8V
3.2V
V
+B
+B
+B
+B
PLAYBACK SIGNAL
RECORD SIGNAL
Figure 19 SCHEMATIC DIAGRAM (5/9)

XL-MP45H
– 20 –
A
B
C
D
E
F
G
H
123456
1K
LC78646E
100µH
0.1
150
4.7/50
0.001
0.001
0.001
0.001
100
1-SLD
G-SLD
0+SLD
0-SLD
TCAP
RESETREG-TR
0-SPD
0+SPD
G-SPD
REF-IN
1-SPD
G-TRK REG-OUT 0+TRK 0-TRK 0-FCS I-TRK G-FCS 1-FCS
GND GND GND
0+FCS GND GND GND MUTE VCCVCC
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
151413121110987654321
15
14
13
12
11
10
20
19
18
17
16
9
8
7
6
5
4
3
2
1
46
47
48
49
50
51
41
42
43
44
45
52
53
54
55
56
57
58
59
60
LA6548D
100/10
1/50 0.1
6.8K
100
15K
10K
1K
1
1/50
2HA1015 GR 150
12K
22µH
47K
1N4148
1K
10/16
2HC1815 GR
1N4148
1K
1K
2.7K
0.1
100/6.3
2SA952 K
8.2
10K
GND
SP+
SP-
SL+
SL-
1
2
3
4
5
6
7
6
5
4
3
2
1
1
9
8
7
1
2
3
4
5
6
220
13
14
15
16
16
1
16
12
11
10
10/16
0.1
47P
10/16
0.0022 RFMON
100/6.3
2HA1015 GR
3.3
0.01 0
0.1
0.1
1/50
0.047
680
680
12K
0.1
1.2K
0.047
0.1
27K
10K
330
100P
0.0022
0.1 100/6.3
DZ5.1BSB
100/6.3
33/16
100K
0.1
470
100 0.1
33K
33K
100K
33K
33K
6.8K
68P
0.1
1K
1K
1K
33
470
0
470
47
0.1
12P
(CH)
16.9344MHz
12P(CH)
220
150 0.1
0.1 330/10
0.1
FE
TP7
TP6
TP5
*WRQ
*RES
DRF
CE
CL
DI
DO
CONT3 CONT2
PD01 PD02
VVSS
PCKIST
VVDD
VDD5
VSS
FR
DATA
DATACK
REF1
ADAVSS ADAVDD
JITTC
RFMON
TE
TEC
FE
RSVSS
RFVDD
RF
VREF
TIN2 F
TIN1 E
FIN2 B
FIN1 A
LCHO
LVSS
RVSS
RCHO
RVDD
XVDD
EFMIN
SLCIST
SLCO
XOUT
XIN
FSX/16MIN
XVSS
C2F
EFLG
IGMOUT
ASRACK
ASDFIN
LRSY
TEST DOUT VDD VSS MON15 MON14 MON13
ASDACK
MON12 DEFECT SBCK/FG CONT5 CONT4 GPDAC SLDO SPDO MON11 FSEQ V/1P FDO LDD
LDS
TP8
+B+B
+B
+B
+B
+B
+B +B
+B
+B
+B +B
+B
+B
+B
+B
+B
+B
100
0.1
22K
100K
LVDDTDO
0.1
CD SERVO PWB-A2
SERVO/SIGNAL
CONTROL
FOCUS/TRACKING/
SPIN/SLED DRIVER
+5V
VREF
E
A
B
F
C
TR-
FO-
FO+
TR+
D
GND
LD
PD
VR
R864
CNW803
CNS803
FB801
R809
C813
D803
FB803
R808
C802
C805
R812
R834
R805
C806
R819
R814
C804 R811
C821
C840
R849
R816
C834
C820
R831
C819
C842
R830
R829
C817
C818
C841
C822
C823
C824
R832
R835
R838
C826
C827
C825
R815
C843
C831
C830
C828
C829
CNS801
CFW801
C832
IC802
C808
Q802
R821
C810
R822
R820
R810
R817
R818
C807
R848
R847
R845
R846
C833
C836
R844
JP82
7
R841
C846
C835
C849
C848
R850
C844
R842
R826
C815 D802
Q804
D801
Q803
R828
R827
R804
R807
C814
C812
R839
L802
L801
X801
C838
R823
C839
R843
R825
R824
C811
C809
C837
C816
R802
R803
R806
Q801
C803
R840
C847
R813
C845
FB802
R851
IC801
53
78
12
11
10
9
6
4
21
CD SIGNAL
• The numbers 1 to 11 are waveform numbers shown in page 9.
• NOTES ON SCHEMATIC DIAGRAM can be found on page 8.
Figure 20 SCHEMATIC DIAGRAM (6/9)