Sony XL 55H Service Manual

XL-55H/65H

SERVICE MANUAL

No. S2317XL55H///

MICRO COMPONENT SYSTEM

Illustration XL-55H

Illustration XL-65H

(XL-65H ONLY)

(Except for U.K.)

MODEL

XL- 55H Micro Component System consisting of XL- 55H (main
unit) and CP- XL65H (speaker system).

MODEL

XL- 65H Micro Component System consisting of XL- 65H (main
unit) and CP- XL65H (speaker 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.

• 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.

XL-55H

XL-65H

CONTENTS

Page

SAFETY PRECAUTION FOR SERVICE MANUAL .......................................................................................................... 2

IMPORTANT SERVICE NOTES (FOR U.K. ONLY)......................................................................................................... 2

SPECIFICATIONS ............................................................................................................................................................ 3

NAMES OF PARTS .......................................................................................................................................................... 4

DISASSEMBLY................................................................................................................................................................. 6

REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................... 7

ADJUSTMENT.................................................................................................................................................................. 9

TEST MODE ................................................................................................................................................................... 10

ERROR LIST .................................................................................................................................................................. 14

NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 15

TYPES OF TRANSISTOR AND LED.............................................................................................................................. 15

BLOCK DIAGRAM .......................................................................................................................................................... 16

SCHEMATIC DIAGRAM ................................................................................................................................................. 20

WIRING SIDE OF P.W.BOARD...................................................................................................................................... 32

WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 37

TROUBLESHOOTING .................................................................................................................................................... 38

FUNCTION TABLE OF IC .............................................................................................................................................. 44

LCD SEGMENT .............................................................................................................................................................. 51

PARTS GUIDE/EXPLODED VIEW

PACKING METHOD (FOR U.K. ONLY)

SHARP CORPORATION

– 1 –

This document has been published to be used
for after sales service only.
The contents are subject to change without notice.

XL-55H/65H

PROBE

AC

OUT

UNIT

SHORT-CIRCUT
AC POWER
SUPPLY CORD

CONNECT THE PROBE
TO GND OF CHASSIS
SCREW TERMINAL

WITHSTANDING

VOLTAGE TESTER

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 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) 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.

Laser Diode Properties

Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW

Laser Diode Properties

Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW

Before returning the unit to the customer after completion of a
repair or adjustment it is necessary for the following withstand
voltage test to be applied to ensure the unit is safe for the
customer to use.
Setting of Withstanding Voltage Tester and set.

Set name set value
Withstanding Voltage Tester
Test voltage 4,240 VPEAK

Set time 6 secs
Set current(Cutoff current) 4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.

NG: The “NG” lamp lights and the buzzer sounds.

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.

(Except for U.K.)

IMPORTANT SERVICE NOTES (FOR U.K. ONLY)

3,000 VRMS

(For U.K.)

– 2 –

Except for U.K.

■ General

Power source
Power

consumption

Dimensions

Weight

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.

SPECIFICATIONS

■ CD player

AC 230 V, 50 Hz
Power on: 50 W
Power stand-by: 0.6 W
Width: 160 mm (6-5/16")

Height: 240 mm (9-1/2")
Depth: 297 mm (11-11/16")

3.6 kg (8.0 lbs.)

Type
Signal readout

D/A converter
Frequency

response
Dynamic range

Compact disc player
Non-contact, 3-beam semiconductor laser

pickup
1-bit D/A converter
20 - 20,000 Hz

90 dB (1 kHz)

XL-55H/65H

■ Amplifier

Output power

Output terminals

Input terminals

■ Tuner

Frequency range

For U.K.

■ General

Power source
Power

consumption

Dimensions

Weight

PMPO: 120 W (total)
MPO: 60 W (30 W + 30 W) (DIN 45 324)
RMS: 40 W (20 W + 20 W) (DIN 45 324)
Speakers: 4 ohms
Headphones: 16 - 50 ohms (recommended:

32 ohms)
CD digital output (optical)
Video/Auxiliary (audio signal): 500 mV/47 k

ohms

FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz

AC 230 V, 50 Hz
Power on: 50 W
Power stand-by: 0.6 W
Width: 160 mm (6-5/16")

Height: 240 mm (9-1/2")
Depth: 297 mm (11-11/16")

3.6 kg (8.0 lbs.)

■ Cassette deck

Frequency
response

Signal/noise r a tio
Wow and flutter

■ Speaker

Type

Maximum input
power

Rated input power
Impedance
Dimensions

Weight

■ CD player

Type
Signal readout

D/A converter
Frequency

response
Dynamic range

50 - 14,000 Hz (normal tape)

50 dB (recording/playback)

0.3 % (DIN 45 511)

2-way type speaker system
Tweeter
10 cm (4") woofer
40 W

20 W
4 ohms
Width: 160 mm (6-5/16")

Height: 240 mm (9-1/2")
Depth: 200 mm (7-7/8")

2.0 kg (4.4 lbs.)/each

Compact disc player
Non-contact, 3-beam semiconductor laser

pickup
1-bit D/A converter
20 - 20,000 Hz

90 dB (1 kHz)

■ Amplifier

Output power
Output terminals

Input terminals

RMS: 40 W (20 W + 20 W ) (10 % T.H.D.)
Speakers: 4 ohms
Headphones: 16 - 50 ohms (recommended:

32 ohms)
CD digital output (optical)
Video/Auxiliary (audio signal): 500 mV/47 k

ohms

■ Tuner

Frequency range

Specifications for this model are subject to change without
prior notice.

FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz

■ Cassette deck

Frequency
response

Signal/noise r a tio
Wow and flutter

■ Speaker

Type

Maximum input
power

Rated input power
Impedance
Dimensions

Weight

– 3 –

50 - 14,000 Hz (normal tape)

50 dB (recording/playback)

0.25 % (WRMS)

2-way type speaker system
Tweeter
10 cm (4") woofer
40 W

20 W
4 ohms
Width: 160 mm (6-5/16")

Height: 240 mm (9-1/2")
Depth: 200 mm (7-7/8")

2.0 kg (4.4 lbs.)/each

XL-55H/65H

XL-55H

610789

11 12 13 14

5

15 17 18 19

16

23
24

25

26

NAMES OF PARTS

1
2

3
4

20

21
22

27
28
29

30

1.CD Compartment

2.CD Eject Button

3.Volume Control

4.Cassette Compartment

5.Headphone Socket

6.On/Stand-by Button

7.Function Selector Button

8.CD or Tape Stop, Tuning Down Button

9.CD Play or Pause, Tape Play,
Tuning Up Button

10.Bass/Treb le Selector Button

11.Memory/Set Button

12.Tape Record Pause Button

13.CD Track Down or Fast Reverse, Tape Rewind,
Tuner Preset Down Button

14.CD Track Up or Fast Forward, Tape Fast Forward,
Tuner Preset Up Button

15.Timer Play Indicator

16.Tape Record Indicator

17.Sleep Indicator

18.CD Random Play Indicator

19.Memory Indicator

20.FM Stereo Mode Indicator

21.FM Stereo Receiving Indicator

22.Surround Indicator

23.CD Play Indicator

24.CD Repeat Play Indicator

25.CD Digital Output Socket

26.AC Pow er Inp ut Socket

27.FM 75 Ohms Aerial Socket

28.AM Loop Aerial Socket

29.Video/Auxiliary (Audio Signal) Input Sockets

30.Speaker Terminals

1

3

2

4

5
6

7
8

9
10
11
12

13
14
15

19
20

21
22
23
24
25

26
27

28

16
17

29

18

Buttons with " " mark in the illustration or highlighted in bold on
the right can be operated on the remote control only.

1.Tweeter

2.Woofer

3.Speaker Wire

4.Bass Reflex Duct

Speaker grilles are removable:

Make sure nothing comes into contact with the
speaker diaphragms when you remove the speak­er grilles.

Remote Control Transmitter

5.

6.Clock Button

On/Stand-by Button

7.

CD Button

8.

Tuner and Band Selector Button

9.

10.Clear Button

Memory Button

11.

CD Track Down, Tuner Preset Down Button

12.

CD Fast Reverse, Tuning Down,

13.

Tape Rewind Button
CD or Tape Play Button

14.

15.Surround Button

CD or Tape Stop Button

16.

Volume Up and Down Buttons

17.

Bass Up and Down Buttons

18.

19.Timer Button

20.Sleep Button

Video/Auxiliary Button

21.

Tape Button

22.

23.Repeat Button

24.Random Button

CD Track Up, Tuner Preset Up Button

25.

CD Fast Forward, Tuning Up,

26.

Tape Fast Forward Button
Tape Record Pause Button

27.

CD Pause Button

28.

Treble Up and Down Buttons

29.

– 4 –

XL-65H

XL-55H/65H

610789

11 12 13 14

5

15 17 18 19

16 20 21

26
27

28

29

22

30
31
32

33

23

24
25

1
2

3
4

1.CD Compartment

2.CD Eject Button

3.Volume Control

4.Cassette Compartment

5.Headphone Socket

6.On/Stand-by Button

7.Function Selector Button

8.CD or Tape Stop, Tuning Down Button

9.CD Play or Pause, Tape Play,
Tuning Up Button

10.Bass/Treble Selector Button

11.Memory/Set Button

12.Tape Record Pause Button

13.CD Track Down or Fast Reverse, Tape Rewind,
Tuner Preset Down Button

14.CD Track Up or Fast Forward, Tape Fast Forward,
Tuner Preset Up Button

15.Timer Play Indicator

16.Tape Record Indicator

17.Sleep Indicator

18.CD Random Play 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.Surround Indicator

26.CD Play Indicator

27.CD Repeat Play Indicator

28.CD Digital Output Socket

29.AC Power Input Socket

30.FM 75 Ohms Aerial Socket

31.AM Loop Aerial Socket

32.Video/Auxiliary (Audio Signal) Input Sockets

33.Speaker Terminals

1

3

2

4

5
6

7
8

9
10
11
12

13
14
15

20
21

22
23
24
25
26

27
28

29

16
17

18
19

Buttons with " " mark in the illustration or highlighted in bold on
the right can be operated on the remote control onl y.

30
31
32

1.Tweeter

2.Woofer

3.Speaker Wire

4.Bass Reflex Duct

Speaker grilles are removable:

Make sure nothing comes into contact with the
speaker diaphragms when you remove the speak­er grilles.

Remote Control Transmitter

5.

6.Clock Button

On/Stand-by Button

7.

CD Button

8.

Tuner and Band Selector Button

9.

10.Clear Button

Memory Button

11.

CD Track Down, Tuner Preset Down Button

12.

CD Fast Reverse, Tuning Down,

13.

Tape Rewind Button
CD or Tape Play Button

14.

15.Surround Button

CD or Tape Stop Button

16.

Volume Up and Down Buttons

17.

Bass Up and Down Buttons

18.

19.RDS Programme Type/
Traffic Information Se arch Button

20.Timer Button

21.Sleep Button

Video/Auxiliary Button

22.

Tape Button

23.

24.Repeat Button

25.Random Button

CD Track Up, Tuner Preset Up Button

26.

CD Fast Forward, Tuning Up,

27.

Tape Fast Forward Button
Tape Record Pause Button

28.

CD Pause Button

29.

Treble Up and Down Buttons

30.

31.RDS Display Mode Selector Button

32.RDS ASPM (Auto Station Programme Memory) Button

– 5 –

XL-55H/65H

(E1)x1
ø3x10mm

(E1)x1
ø3x10mm

(E1)x1
ø3x10mm

(E1)x1
ø3x10mm

(E2)x2

(A2)x1

(E2)x2

(E3)x1

Main PWB

Power PWB

Tape
Mechanism
PWB

Headphones
PWB

(C2)x2
ø3x10mm

(D1)x1
ø3x10mm

(D2)x1

Rear Panel

(D3)x1

Main PWB

Power Amp. PWB

Power PWB

(G1)x4
ø4x10mm

(F1)x1
ø3x10mm

(F1)x1
ø3x10mm

(G1)x1
ø3x10mm

(F2)x1

(F2)x1

Power
PWB

Front Panel

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

1 Top Cabinet 1. Screw .................. (A1) x5 6-1

2 Side Panel

3 Rear Panel 1. Screw .................. (C1) x3 6-1

4 Power Amp. PWB 1. Screw .................. (D1) x1 6-2

5 Main PWB/ 1. Screw .................. (E1) x4 6-3

6 Front Panel 1. Screw .................. (F1) x2 6-4

7 Power PWB 1. Screw .................. (G1) x5 6-4

8 Tape Mechanism 1. Open the cassette holder 6-5

9 Display PWB 1. Knob .................... (J1) x1 6-5

10 CD PWB(Note)/ 1. Screw .................. (K1) x4 7-1

11 CD Mechanism 1. Screw .................. (L1) x3 7-2

Note:

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.

REMOVAL PROCEDURE FIGURE

2. Socket ................. (A2) x2 6-1,3

(Left/Right)

Headphones PWB 2. Socket ................. (E2) x4

Open Close Switch 2. Screw .................. (K2) x2

PWB 3. Socket ................. (K3) x3

1. Screw .................. (B1) x4 6-1

2. Screw .................. (C2) x2 6-2

2. Socket ................. (D2) x1

3. Socket ................. (D3) x1

3. Socket ................. (E3) x1

2. Socket ................. (F2) x2

2. Screw .................. (H1) x4

2. Screw .................. (J2) x8

Figure 6-2

Figure 6-3

(A1)x1
ø3x10mm

Side Panel
(Right)

CD PWB

(B1)x2
ø3x10mm

Top Cabinet

Rear Panel

Figure 6-1

(A1)x1
ø3x10mm

(C1)x1
ø3x10mm

(A2)x1

(B1)x2
ø3x10mm

(A1)x1
ø3x10mm

Side Panel
(Left)

(A1)x2
ø3x10mm

(C1)x2
ø3x10mm

– 6 –

(J1)x1

Open

Cassette
Holder

Figure 6-4

Front Panel

Figure 6-5

Display PWB

(J2)x8
ø2.6x10mm

Tape
Mechanism

(H1)x4
ø2.6x10mm

<A>

Pinch Roller
(B1)x1

Pinch Roller
Pawl

Main Belt
(C1)x1

FF/REW Belt
(C2)x1

REW/FF
Clutch

Motor

CD PWB

(L1)x3
ø2.6x10mm

Top Cabinet

CD Mechanism

(K2)x1
ø2.6x10mm

Top Cabinet

(K1)x4
ø2.4x10mm

(K2)x1
ø2.6x10mm

Open/Close
Switch PWB

(K3)x1

XL-55H/65H

(K3)x2

Jack
PWB

CD Mechanism

Figure 7-1

REMOVING AND REINSTALLING THE MAIN PARTS

TAPE MECHANISM SECTION

Perform steps 1 to 6 and 8 of the disassembly method to
remove the tape mechanism. (See page 6.)

How to remove the record / playback and erase
heads (See Fig. 7-3.)

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
adjustment, be sure to apply screwlock.

How to remove the pinch roller (See Fig. 7-4.)

1. Carefully bend the pinch roller pawl in the direction of the

<A>, and remove the pinch roller (B1) x 1 pc.,

arrow
upwards.

(A2)x1
ø2x7mm

(A1)x2
ø2x8mm

Erase Head

Record/
Playback Head

Figure 7-2

(A2)x1
ø2x3mm

Figure 7-3

How to remove the belts (See Fig. 7-5.)

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.

How to remove the motor
(See Fig. 7-6.)

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.

– 7 –

(D1)x1
ø2x4mm

Motor

(D1)x1
ø2x4mm

Figure 7-4

Figure 7-5

(D2)x3
Special
Screw

Motor
Bracket

Motor

Figure 7-6

XL-55H/65H

Pickup Unit

(A2) x2
ø2.6 x6mm

(A1) x2

CD Mechanism

Shaft
(A3) x1

Gear
(A5) x1

StopWasher
(A4) x1

Mechanism Cover

(A1) x2

Stop
Washer

Driver

(E1)x1
Stop Washer

Mechanism
Chassis

Washerx2

Flywheel

How to remove the flywheel (See Fig. 8-1.)

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.

How to reinstall the parts

Install each part in the reverse order of the removal with care.

Figure 8-1

How to remove the tape mechanism PWB
(See Fig. 8-2.)

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.

CD MECHANISM SECTION

Perform steps 1, 10 and 11 of the disassembly method to
remove the CD mechanism. (See page 6.)

How to remove the pickup (See Fig. 8-3)

1. Remove the mechanism cover, paying attention to the
pawls (A1) x 4 pcs.

2. Remove the screws (A2) x 2 pcs., to remove the shaft (A3)
x 1 pc.

3. Remove the stop washer (A4) x 1 pc., to remove the gear
(A5) x 1 pc.

4. Remove the pickup.

(F1)x1
ø2x3mm

Tape
Mechanism
PWB

(F2)x1
ø2x8mm

Tape
Mechanism
PWB

(F3)x2
Solder
Joint

Figure 8-2

Note:

After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of connector remove to protect the optical pickup
from electrostatic damage.

Figure 8-3

– 8 –

MECHANISM SECTION

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

• Driving Force Check

Torque Meter

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

• Tape Speed

Test Tape

MTT-111 Variable 3,000 ± Headphone

Adjusting

Point

resistor in 90 Hz terminal
motor.(M901)

TAPE MECHANISM

Figure 9-1 ADJUSTMENT POINT

Specified

Value

M901
Tape
Motor

Variable
resistor
in motor

Specified Value

Specified Value

Instrument

Connection

ADJUSTMENT

TUNER SECTION

fL: Low-renge frequency
fH: High-renge frequency

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Frequency

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

*1. Input: Antenna Output: Speaker terminal
*2. Input: Input is not connected Output: TP301

• Check FM VT

Signal generator: 1 kHz, 40 kHz dev., FM modulated

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

• FM Mute Level

Signal generator: 1 kHz, 40 kHz dev., FM modulated

Frequency

98.00 MHz 98.00 MHz VR351*1 Input: CNP301
(30 dBµV) Output: Speaker

*1. Adjust so that an output signal appears.

Frequency Display

Display

Display

Check Point

Adjusting

Parts

XL-55H/65H

Setting/

Adjusting

Parts

Instrument

Connection

Instrument

Connection

Terminal

Instrument

Connection

Figure 9-2 ADJUSTMENT POINTS

– 9 –

XL-55H/65H

• 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

1 87.50 MHz
2 108.00 MHz
3 98.00 MHz
4 90.00 MHz
5 106.00 MHz
11~25 ––––

Preset No.

6 531 kHz
7 1,602 kHz
8 990 kHz
9 603 kHz
10 1,404 kHz

AM

Preset No.

26 106.00 MHz
27 90.00 MHz
28 98.00 MHz
29 108.00 MHz
30 87.50 MHz

FM MONO

TEST MODE

The test mode applied to this microcomputer has three modes, namely ordinary test mode to be used for adjustment or
measurement, aging test mode to be used for aging test, and self-diagnosis test mode for self-inspection in case of final product
inspection.

1. Turning on the test mode

To turn on the specific test mode, press the ON/STAND-BY button, holding down the following two buttons in the ordinary stand­by mode (power off state). In this case only the main unit button is valid. Even when the ON/STAND-BY of remote control button
is set to on, the test mode is not turned on.
[Ordinary test mode]

1. CD Test Mode (TEST 1)…………………… BASS/TREBLE + FF/FWD

2. Tuner Test Mode (TEST 2)………………… BASS/TREBLE + REW/REV

3. Electronic volume Test Mode (TEST 3)……BASS/TREBLE + REC

4. Timer Test Mode (TEST 4)………………… MEMORY/SET + REC

5. LCD Test Mode (TEST 5)……………………MEMORY/SET + REW/REV
[Self-diagnosis Test Mode]

1. Button input diagnosis test mode (TEST6).…

2. CD Test Mode (TEST 1)

In the CD test mode the operation of each step is enabled even when the LID-SW is off. However, if focus cannot be set in step 3
or any error processing is started, it is impossible to proceed to the next step. When the error processing is started, operations other
than termination of test mode by pressing the ON/STAND-BY button or return to the step 1 by pressing the STOP button are inhibited.

1. Step 1 Mode

When the CD test mode is turned on, the following indication lights, the processing (until turning-off of CD STB terminal of CD
initialization operation flow) is executed, and the next button input is waited.

MEMORY/SET + PLAY

After lighting for one second

If the following operation buttons are pressed in this state, the operation is performed as follows.

"ON/STAND-BY"......The test mode is turned off, the power is turned off, and the ordinary stand-by mode is set.

"FF/FWD".................After the pickup returns once to the innermost periphery, it slides toward the outer periphery while this

button is held down.

"REW/REV"..............After the pickup returns once to the innermost periphery, it slides toward the inner periphery while this

button is pressed. However, if PU-IN is on, input is invalid.

"PLAY" .....................Shift to step 2

"STOP".....................Invalid

"REC PAUSE"..........Shift to step 5

– 10 –

XL-55H/65H

* In case of initialization the pickup is moved toward the inner periphery. Any buttons other than ON/STAND-BY button are not

accepted until the shift of pickup to the inner periphery is completed at this time. If PU-IN SW ON cannot be detected within
10 seconds, the slide motor is stopped, and the following error indication appears. Press the ON/STAND-BY button to end
the test mode, or press the STOP button to return to step 1. Any other operations are inhibited.

2. Step 2 Mode

When the "PLAY" button is pressed in this mode, the laser lighting command LDON (8400) is sent, and the laser is turned on.
Other operations are not performed.

If the following buttons are pressed in this state, the operation is performed as follows.

"ON/STAND-BY" .....The test mode is turned off, the power is turned off, and the ordinary stand-by mode is set.

"FF/FWD" ................The pickup slides toward the outer periphery while this button is held down.

"REW/REV" .............The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input

is invalid.

"PLAY".....................Shift to step 3

"STOP" ....................Return to step 1

"REC PAUSE" .........Shift to step 5

3. Step 3 Mode

The laser is kept lighting. The processing (until turning-on of CLV servo of CD initialization operation flow) is executed, and
the next button input is waited. (The focus servo is turned on, and focus search is performed.)
The focus search is repeated until the focus is set.

When the following operation buttons are pressed in this state, the operation is executed as follows.

"ON/STAND-BY" .....The test mode is turned off, the power is turned off, and the ordinary standby mode is set.

"FF/FWD" ................The pickup slides toward the outer periphery while this button is held down.

"REW/REV" .............The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input

is invalid.

"PLAY".....................If the focus has been set, shift to step 4 is executed. If the focus has not been set, acceptance is inhibited.

"STOP" ....................Return to step 1

"REC PAUSE" .........Shift to step 5

*If the focus is disturbed after it has been set, the process returns to step 1.

4. Step 4 Mode (Only focus "OK" can make this item showing)

The CLV servo ON command (8600) sending operation is performed, and the next button input is waited. (The disc is rotated
to perform CLV locking.)

The time display indicates always "0:00".

When the following buttons are pressed in this state, the operation is executed as follows.

"ON/STAND-BY" .....The test mode is turned off, the power is turned off, and the ordinary standby mode is set.

"FF/FWD" ................The pickup slides toward the outer periphery while this button is held down.

"REW/REV" .............The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input

is invalid.

"PLAY".....................Shift to step 5

"STOP" ....................Return to step 1

"REC PAUSE" .........Shift to step 5

*If the focus is disturbed, the process returns to step 1.

– 11 –

XL-55H/65H

5. Step 5 Mode

The CD initialization operation flow is executed to the end, the mute is set to off, and playback is started. Even when the
playback reaches the outermost periphery of disc, the operation does not stop. The LCD display indicates the playback past
time as in case of ordinary CD playback.

When the following operation buttons are pressed in this sate, the operation is executed as follows.

"ON/STAND-BY"......The test mode is turned off, the power is turned off, and the ordinary standby mode is set.

"FF/FWD".................The pickup slides toward the outer periphery while this button is held down.

"REW/REV"..............The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input

is invalid.

"PLAY" .....................Invalid

"STOP".....................Return to step 1

*If the focus is disturbed, the process returns to step 1.
Other cautions

• TOC IL is not executed in the test mode.

• As for button operations other than those shown above, only the sound volume operation (with JOG) is accepted.

3. Tuner Test Mode (TEST 2)

1. Outline of tuner (radio) test mode

The tuner test mode is intended to store the adjustment and measurement frequencies in the preset memory CH without

frequency setting by adjusting personnel when the tuner section is adjusted in the production line.

2. Details of tuner test mode

When the power is turned on by using the ON/STAND-BY button while the BASS/TREBLE and REW/REV buttons are held

down in POWER OFF state, the frequency for adjustment and measurement of destination specified by the AREA terminal
is preset and stored in the preset memory CH. However, Ordinary 1 and Ordinary 2 are set to the designation (destination
selected by SPAN switching operation) set when the test mode is obtained.(Memory/Set+Function Key Span Charged) (As

for frequencies to be preset and stored for each destination, refer 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. However, FUNCTION switching

is invalid.
Since it is necessary to discard the content of preset memory when the tuner test mode is ended, "0000" or "1111" bits are

written in the memory to be checked in case of memory check (in case of initial setting) so that memory abnormality is detected

in case of initial setting so as to ensure memory initialization.

When the tuner test mode is turned on, the following indication lights for one second.

The TUNER TEST2 mode is set as a result of BASS/TREBLE+ REW/REV.

•

When POWER is set to OFF, the memory of TEST2 mode is protected.
When the power is turned on again, the ordinary operation is enabled while the 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.

• To clear the whole memory, insert the AC cord, holding down MEMORY + STOP.

->

POWER OFF

->

IF AC is set to OFF in the TEST2

mode, the initial state is restored.

– 12 –

3. Preset frequencies for various destinations (random preset memory)

XL-55H/65H

CH

1 FM 87.50 MHz
2 FM108.00 MHz
3 FM FM 98.00 MHz
4 STEREO FM 90.00 MHz
5 FM106.00 MHz

• The hatched sections of the table are not stored in memory.

4. Electronic volume Test Mode (TEST 3)

When the test mode is set, the following indication lights for one second.

When this mode is set, BASS/TREBLE is set to 0 (0 dB) and start-up function is set to CD when volume is -14 dB (STEP 23).
The button operations in the test mode are the same as those of ordinary operation excepting sound volume UP/DOWN.

(1) The indication is the same as that of ordinary operation excepting test mode setting.
(2) The sound volume control with the sound volume UP/DOWN button is only the following 3 steps unlike the ordinary state.

Volume­(3) BASS/TREBLE is switched when button operation is performed.

BAND

∞ (STEP 0) <-> Volume-14 dB (STEP 23) <-> Volume-0 (STEP 30)

Europe 2, 4

BAND

6 AM 531 kHz
7 AM1602 kHz
8 AM AM 990 kHz
9 AM 603 kHz
10 AM1404 kHz

11-15 LW

Europe 2, 4CH

CH

16-25
26 FM106.00 MHz

27 FM 90.00 MHz
28 FM FM 98.00 MHz
29 MONO FM108.00 MHz
30 FM 87.50 MHz

BAND

Europe 2, 4

5. Timer test Mode (TEST 4)

When the test mode is set, the following indication lights for one second.

The current time and timer time are set in the following procedure to perform the timer playback.

1.Set the current time to 1:00, set the timer to ON time 1:05, set the function to Aux, and set volume STEP 12. One minute is counted
as one second, and the timer playback operation is performed. The fade-in (when playback is started) is executed at a rate of
one step for 1 sec. After completion of fade-in the fade-out is executed at a rate of one step for 1 sec (WAIT 1 sec inserted). After
completion of fade-out the power is turned off (after WAIT 1 sec), and the mode is changed to the standby mode.

The indication during operation is the same as that of ordinary timer operation.

6. LCD Test Mode (TEST 5)

When the LCD test mode is set, all the LCD segments are lighted. After that the indication is changed as follows according to
the "PLAY" button input.

Lighting of all segments Lighting of odd segments Lighting of even segments

– 13 –

XL-55H/65H

7. Key input diagnosis Test Mode (TEST 6)

When the test mode is set, the following indication appears.

This test mode is intended to check whether all the main unit buttons can be detected. Accordingly, in this test mode checking
as to whether the "ON/STAND-BY" button was pressed after all the buttons shown below were pressed is performed. If the result
is OK, OK is indicated. Even any one of keys was not pressed, an error is indicated. In case of OK termination or error termination
exit from this mode occurs when the "ON/STAND-BY" button is pressed next time, and the standby mode is set.

1. In case of "MEMORY/SET" + "PLAY"+ "ON/STAND-BY"

Since SURROUND and RDS are not provided, the following 9 buttons are detected as all buttons.
PLAY, ON/STAND-BY, BAND, BASS/TREBLE, FUNCTION, MEMORY/SET, REC PAUSE, REW, FF, STOP.

The OK/NG indication of test result is as follows.

ERROR LIST

PU-IN SW detection error

Tape mechanism error 1

Error content............The detection SW cannot detect ON

after a fixed period of time even if the
microcomputer controls the CD pickup
to return to the innermost position.

Probable cause........Defective or poorly connected PU-IN

SW or slide motor.

Action .......................Solve the problem and turn on the power

again.

CD read error

Error content ........... Disc data cannot be read properly or

even if it can be read, the disc is not a
playable one.

Probable cause....... The disc is loaded upside down, not CD-

DA, scratches, stains, etc.

Action ...................... Open the CD lid, then reload the disc

correctly. Remove the scratches or stains
on the disc.

NO DISC

Error content ........... Focusing is impossible.

Probable cause....... The disc is loaded upside down, not CD-

DA, scratches, stains, etc.

Action ...................... Open the CD lid, then reload the disc

correctly. Remove the scratches or stains
on the disc.

Error content........... The detection SW "CAM-SW" cannot

detect ON (mechanism in operation) even
if the motor and solenoid are controlled
to play back, fast forward, rewind, or
record the tape.

Probable cause....... Mechanism is in operation when this

message appears: Defective or poorly
connected CAM-SW. Mechanism stops:
Defective or poorly connected motor or
solenoid.

Action ...................... Solve the problem and turn on the power

again.

Tape mechanism error 2

Error content ........... Initialization cannot be completed when

the microcomputer controls the motor
and solenoid to initialize the tape
mechanism (to set the mechanism to the
stop mode). The detection SW "CAM­SW" cannot detect OFF While the
mechanism is in operation.

Probable cause....... Mechanism is in operation when this

message appears: Defective or poorly
connected CAM-SW. Mechanism stops:
Defective or poorly connected motor or
solenoid.

Action ...................... Solve the problem and turn on the power

again.

– 14 –

NOTES ON SCHEMA TIC DIAGRAM

XL-55H/65H

• 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

SW700 VOLUME ON—OFF
SW701 ON/STAND-BY ON—OFF
SW702 FUNCTION ON—OFF
SW703 STOP/CLEAR,TUNING DOWN ON—OFF
SW704 PLAY/CD STOP,TUNING UP ON—OFF
SW705 BASS/TREBLE ON—OFF
SW706 MEMORY/SET ON—OFF

DESCRIPTION

POSITION POSITIONREF. NO

• 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.

DESCRIPTION

SW707 REC/PAUSE ON—OFF
SW708 REW/PRESET DOWN ON—OFF
SW709 FF/PRESET UP ON—OFF
SW800 PICKUP IN ON—OFF
SW801 CD LID OPEN/CLOSE ON—OFF
SW901 FOOL PROOF ON—OFF
SW902 CAM ON—OFF

FRONT

VIEW

ECB

(S)(G)(D)
(1) (2) (3)

TYPES OF TRANSISTOR AND LED

2HA1015 GR
2HC1815 GR
2SC2001 K
2SC380 O
2SK2541
HSB562 C
KRA102 M
KRC102 M
KRC104 M
KRA107 M
KRC107 M

FRONT

VIEW

BCE

KTC2026 Y

Figure 15 TYPES OF TRANSISTOR AND LED

MPG3372X

FRONT
VIEW

1 2 3

SVC348S

– 15 –

XL-55H/65H

E

A

T

AM

FM

CNP301

1
2

FM

ANTENNA

SOCKET

SO301

L341

BALUN

16

FM FRONT END

CLE

DATA

IC521

LC72723M

RDS

T306

AM OSC.

FE301

FM+B

T302

AM ANT

FM MUTE LEVEL

VR351
10K(B)

AM OSC OUT

1

CF302

24 22

23

FM AFC

AM OSC IN AM MIX OUT

AM OSC OUT

REG

FM IF IN

AM IF

3

T351

AM MIX OUT

2

FM IF

10.7MHz

TP301

D_GND

X352

4.5MHz

21

22

X OUT

X IN

1 2 3 4

21

20

19

VSM

AM RF IN

IC303

FM IF DET./FM MPX./AM IF

LA1832S

SD

AM IF IN

GND

4 3 2 1

6

5

AM IF IN

3

1

CF352

2

20

VSS

AOUT

IC302

LC72131

PLL TUNER

NC

CE

DI

CL

5

18

FM/AM OUT

AM LOW CUT

STEREO

7

CF351
FM IF

17

VDD

DO

6

L354
LOW PASS
FILTER

FM DET

8

15

16

FM IN

FM

MUTE

8

9

7

X351
456kHz

+5V

14

13

NC

SW

AM IN

MO/ST

FM

10

17

MPX VCO

VCC

9

12

IF IN

IF REQ

11

16

MPX IN

PHASE

IF OUT

10

11

14

15

R-CH OUT

21345678

VD301-1
SVC348S

VD301-2
SVC348S

1

CF301

2

X521

456 kHz

Q301

3

FM IF

10.7MHz

8 97 106 115 124 133 142 151

13

MO/ST

L-CH OUT

PHASE

(AM/FM)

12

SWITCHING

+5V

Q351

FM+B

ZD351

A_GND

R_MUTE

A_12V

R-MUTE

Q360

A_12V

S

RECORD/

PLAYBACK

HEAD

L-CH

R-CH

ERASE

HEAD

M901

TAPE MOTOR

M

SOL901

SOLENOID

CE

DI

CL

DO

Q521

+5V

XL-65H ONLY

R

REC

A_12V

10 10

T

TAPE SW

IC101

HEAD SELECTOR

BA3126N

BIAS OSC

Q151

L151

Q172

SWITCHING

7
6
5
4
3
2
1

CNS901

7
6
5
4
3
2
1

1
2
3
4
5
6
7
8
9

P.F
CAM SW

REC SW

P/B SW
CONT

IC101

P/B SW

REC SW

REC

L-CH

CNP101

CNS101

L-CH

8

8

L-CH

7

7

A-GND

6

6

A-GND

5

5

R-CH

4

4

R-CH

3

3

ERASE

2

2

A-GND

1

1

PHOTE INTERRUPTER

1

+

-

1

2

2

SW901
FOOL
PROOF

SW902
CAM

A-12V

Q171

SWITCHING

L-CH

R-CH

R-CH

CNP901

SWITCHING

Q152

Q153

SOLENOID

DRIVER

M_GND

Q101-Q104

SWITCHING

A_12V

SWITCHING
REC BIAS

CONT

Q903

SWITCHING

Q902

SWITCHING

L-IN

IC102
REC./P.B.
EQUALISER
AMP.

R-IN

Q901

5

9

RUN PLS
SOL

TAPE MOTOR

M_12V

Q905

DRIVER

NF

11

NF

SWITCHING

3

150K

­+

MUTE ALC

+

-

150K

IC102
BA3311L

6

Q906

Q904

SWITCHING

L-OUT

7

U_CON5V

MOT

1

12

CNP703

R-OUT

8

10

2

ALC

REC MUTE

A_12V

BIAS

SURROUND

B-CAN(NC)

1234

TO DISPLAY PWB

RUN_PLS

REC

5

MOT

6

Q105
Q106

SOL

7

U_CON 5V

D-GND

8

9

Figure 16 BLOCK DIAGRAM (1/4)

– 16 –

UTE

RDS CLK

RDS DATA

VSM

FM ST

CD+B

P MUTE

P-STB

12
11
10

SD

9
8

DO

7

CL

6

CE

5

DI

4
3
2
1

XL-65H ONLY

TO DISPLAY
PWB

CNS704

XL-65H : 12Pin
XL-55H : 9Pin

SO401

VIDEO/AUX IN

AUX R

SURROUND

5678

Q461Q463

4321

XL-55H/65H

IC461
KIA4558P
OPE AMP.

A_12V

A_12V

-MUTE

0

A_12V

STEREO

SD

REC L/R CH

TAPE L/R CH

MUTE

Q601

Q602

REC R CH

TAPE R
TUN R
CD R

CD L
TUN L
TAPE L

AUX L

REC L CH

L-IN

R-IN

13

9

11

15

16

14

13 12

IC401

LC75342M

18

17

IC601
LA4451
POWER
AMP.

R-CH OUT

11

10

8

9

7

FUNCTION/VOLUME EQUALISER

19

20

L-CH OUT

2

R-CH OUT

5

3
4

Q603A
Q605A
Q609A

21

24

23

22

25

L-CH OUT

CE

2 1

VSS

LOGIC

VDD

29

1

FROM DISPLAY

2

PWB

+

SO601
SPEAKER
TERMINALS

+

J601
HEADPHONES

DI

30

CL

4 3

6

5

NC

26

27 28

A_12V

CNP680

A_12V
PROTECT

L-CH

L-CH

105
106

U_CON 5V

8

Y PWB

A_12V

D-GND

9

10 10

REC

TAPE SW

CD_6.2V

M_GND

CD R

D-GND

A-GND

CD L

4

5

123

6

TO CD SERVO PWB

CNP605

P-STB

CD_6.2V

MECHA 12V

(M_12V)

AUDIO 12V

(A_12V)

Q607

VOLTAGE

REGULATOR

Q605

Q604

Q606

Q608

CD+B

Q609

Q603

DISPLAY

PWB

VCC

12

7

T651

D651~D654

F651

T3.15A L250V

D656~D659

F652

T1.25A L250V

GND

D656~D659

CNS652

CNP652

1

1

2

2

GND

Q683

IC681

KIA7805P

CNP707

USWD_5R6V

3

TO

P-CONT

2

D_GND

1

VOLTAGE REGULATOR

13

2

GND

POWER

TRANSFORMER

(MAIN)

T681

POWER

TRANSFORMER

(SUB)

SO651

AC POWER

INPUT SOCKET

AC230V,50Hz

RLY681

LF651

LINE

FILTER

T.F

Figure 17 BLOCK DIAGRAM (2/4)

– 17 –

XL-55H/65H

C

C

D

A

C
M

_

G

CNS707
1
2

3

TO POWER

KEY

USWD_5.6V

Q701

SW702-SW704
SW707-SW709

SW705,SW706
SW701

SYS_STOP

Q702
Q703

~

8MHz

X702

32.768MHz

X701

SW700

VOLUME

LCD701

514 38

100

SEG0

COM3

4

~

~

COM0

1

9

10

12
13
17
18

37

6
7
8

24

5
11
14
15
21

KEY1
KEY2

POWER

VLC2
VLC1
VDD

VREF+
VLC3
VSS
MMOD
VREF

JOG_UP

JOG_DOWN

RX701

GP1U281X

REMOTE
SENSOR

1 2 3

P_CONT

IC701

IX0060SJ

SYSTEM CONTROL

MICROCOMPUTER

SYS_STOP

BACK_LIGHT

REMOCON

B-CAN

BIAS

REC

RUN_PLS

MOT

SOL

TAPE_SW

22 222930313435363938 51424741

67

CLID_SW

SEG33

MDATA

CD_STB

STEREO

P_MUTE

MCLK

MLD

BLBCK

STAT

MRST
PU_IN
GVSW

CLE

DATA

VSM

CD+B

P_STB

SURR

CNS605

6
5

TO MAIN SECTION

CNP605

4
3
2
1

13
12
11

9
8
7
6
5
4
3
2
1

CNS704

CNS680

1
2

11
10

9
8
7
6
5
4
3
2
1

SW801
CD LID

OPEN/CLOSE

CLID SW

CD STB

MRST
MCLK

MLD
MDATA
BLKCK

STAT

PICK_IN

GVSW

TO MAIN SECTION

CNP704

TO AMP. SECTION

CNP680

TO MAIN SECTION

CNP703

M_

CNP702

10

9
8
7
6
5
4

3
2
1

~

39 42

65
65
64
63
62
61
60
59
58

XL-65H ONLY

33

40
48
23

SD

50
49
26

DO

CL

27

CE

28
25

DI

46
45
44
43

PROTECT

A–12V

TAPE_SW

A–12V

D_GND

U_CON5V

MOT

REC

RUN_PLS

BIAS

B_CAN

SURROUND

DATA

STEREO

CD+B

P_MUTE

P_STB

SOL

CLE

VSM

SD

DO

CL
CE

DI

XL-65H : 12Pin
XL-55H : 9Pin

CNS703

D_GND

LED

D701~709

Q707

Q706

SWITCHING

Figure 18 BLOCK DIAGRAM (3/4)

– 18 –

M

XL-55H/65H

O
O

CNS605

CD_L

6

A_GND

5

CD_R

SW801
CD LID

CLID SW

CD STB

MRST
MCLK

MLD

MDATA

BLKCK

STAT

PICK_IN

GVSW

CNP702

10

4
3
2
1

M_GND

9
8
7
6
5
4

3
2
1

D_GND
CD_6.2V
M_GND

+6.2V

M_GND

CD_6.2V

CONSTANT

VOLTAGE

Q804

+5V

D_GND

+5V

+5V

FOCUS/TRACKING/

SPIN/SLED DRIVER

14

OPO

13

GND

12

VO2–

11

VO2+

10

VIN2

9

VG2

8

GND

7

MUTE
REG O

6

TRB

5

VG1

4

VIN1

3

VO1+

2

VO1–

1

IC804

MM1469XH

PO1–
PO1+
VO3–
VO3+

VIN3
VG3
VCC
VCC
BIAS
VG4

VIN4
VO4+
VO4–
GND

4
5

9 8 7

13

18 17 16 14

15
16
17
18
19
20
21
22
23
24
25
26
27
28

DVDD1
DVSS1

MCLK
MDATA
MLD

BLKCK
SQCK

DMUTE
STAT
/RST

80

SSEL

TVR

21

+6.2V

79

78

77

76

75

74

73

PSEL

CSEL

RSEL

MSEL

OUTR

AVSS1

OUTL

MN6627482W

SERVO/SIGNAL CONTROL

FOO

TRO

KICK

ECS

ECM

TVD

22

24

28

27

26

25

72

71

/TEST

AVDD1

IC801

FBAL

VREF

30

29

70

IOSEL

TBAL

31

FE

32

36

35

34

33

OFT

VDET

RFENV

TE

TO MAIN SECTION

CNP605

OPEN/CLOSE

E

13

A

12
11

D

9
8
7

L

6

E

5
4
3
2
1

1
2

11
10

9
8
7
6
5
4
3
2
1

TO MAIN SECTION

CNP704

TO AMP. SECTION

CNP680

TO MAIN SECTION

CNP703

I
B
E
B

CNS704
L-65H : 12Pin
L-55H : 9Pin

CNS680

CNS703

M_GND

6

TX

/RFDET

TRCRS

38

37

17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

+5V

VDD

X2
X1

VSS

AVSS2
AVDD2

IREF

ARF

LD

BDO
39

40

VREF
VDET
TEBPF
TEOUT
TEN
FEN
FEOUT
GCTL
FBAL
TBAL
F
E
D
B
C
A

IC802
AN22000A

HEAD AMP.

44 45 50 51 57 58 59 60

GND

NRFDET

OFTR

CDFTR

BDO

CBDO

3TOUT

CEA
ARF

CACC

RFIN

RFOUT

RFN
VCC

D_GND

16
15
14
13
12
11
10

LD
PD

3
2

1

16.93MHz

D_GND

9
8
7
6
5
4
3
2
1

X803

J801
DIGITAL
OUT

+5V

M_GND

SW800

PICKUP IN

M

NM802

SPINDLE

MOTOR

M

NM801

SLED

MOTOR

FOCUS COIL

TRACKING COIL

Figure 19 BLOCK DIAGRAM (4/4)

– 19 –

1/2V

Q801

LASER

DRIVER

+5V

+5V

C

F

A

B

E

MON

LD

VCC

PICKUP UNIT

GND

XL-55H/65H

M

5

1K

C363

3

R374

01V

XL-55H

A

MAIN PWB-A1(1/3) TUNER SECTION

C390

0.022
C388

0.001
C301

0.001

AM ANT

B

D301

1N4148

D302

1N4148

L341

CNP301

D303

1N4148

D304

1N4148

BALUN

C302

0.001

C

AM

ANTENNA

GND

CHASSIS

1
2

D

C376

0.001

FM

75 OHMS

SO301

E

SOCKET

FM ANTENNA

AM TRACKING

T302

C329

0.022

C337

0.022

7

8

6

R369A

(CH)

C330

AM BAND COVERAGE fL

T306

AM OSC

FE301

FM FRONT END

9V

5

R369B

68

82

L342

2.2µH

0.022

C346

C345

0.022

C331

12P

C335

560P

4 3 2 1

2.5V

C348

100/16

4.7K

R345

0.047

R323

C341

0.022

180

R343

R346

330

C347

0.022

68K

680

R344

C332

0.022

C334

CF301

(UJ)
27P

1

2

3

VD301

6.8K

R347

FM IF

SVC348S

9.5V

0.8V

680

R348

+B

Q301

33

R349

10K

R336

2SC380 O

FM MUTE LEVEL

R358

VR351

L353

1mH

5.6K

R351

FM IF
CF302

1

0.022

2

C351

+B

TP301

8.2K

33P

C343

C362

5V

2.5V

24 23 22 21

OUT

AM OSC

ININFM IF

1 2 3

5V

2.1V

3

C352

33P

C344

R382

330

R386

330

3.3/50

C360

0.022

AM OSC

REG

AM MIX

OUT

10/16

C397

VT

C361

2.1V

FM AFC

2.1V

C350

C378

330P

0.022

0.022

(2.7V)

0.022

T351

R381

(2.7V)2.1V

IN

AM RF

A

C394

10K

C

1/

F

G

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.

1

23456

Figure 20 SCHEMATIC DIAGRAM (1/12)

– 20 –

C381

12P(CH)

X352

4.5MHz

C382

15P(CH)

0.001

C384

PLL(TUNER)

+B

2.6V2.6V

22 21 20

VSS

X OUT

X IN

1 2

0V

IC302

LC72131

AOUT