Sharp QTCD-210-H, QTCD-210-W Service manual

QT-CD210H/W

SERVICE MANUAL

No. S1002QTCD210H

QT-CD210H(BK)
QT-CD210H(BL)
QT-CD210H(S)
QT-CD210W(BK)

Illustration: QT-CD210H

QT-CD210W(BL)
QT-CD210W(S)

• 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

Illustration: QT-CD210W

CONTENTS

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

IMPORTANT SERVICE NOTES (QT-CD210H FOR U.K. ONLY).................................................................................... 3

VOLTAGE SELECTION (QT-CD210W ONLY).................................................................................................................. 3

AC POWER SUPPLY CORD AND AC PLUG ADAPTOR (FOR QT-CD210W) ................................................................ 3

SPECIFICATIONS ............................................................................................................................................................. 4

NAMES OF PARTS ........................................................................................................................................................... 5

FITTING OF DIAL POINTER ............................................................................................................................................. 5

OPERATION MANUAL ...................................................................................................................................................... 6

DISASSEMBLY.................................................................................................................................................................. 8

REMOVING AND REINSTALLING THE MAIN PARTS..................................................................................................... 8

ADJUSTMENT ................................................................................................................................................................. 10

SCHEMATIC DIAGRAM .................................................................................................................................................. 12

WIRING SIDE OF P.W.BOARD....................................................................................................................................... 14

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 16

TYPES OF TRANSISTOR ............................................................................................................................................... 16

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 17

TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 18

FUNCTION TABLE OF IC................................................................................................................................................ 22

PARTS GUIDE/EXPLODED VIEW
PACKING METHOD (QT-CD210H FOR U.K. ONLY)

orders.

Page

SHARP CORPORATION

– 1 –

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

QT-CD210H/W

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.

VAROITUS! LAITTEEN KéYTTéMINEN
MUULLA KUIN TéSSé
KéYTTôOHJEESSA MAINITULLA
TAVALLA SAATTAA ALTISTAA
KéYTTéJéN TURVALLISUUSLUOKAN 1
YLITTéVéLLE NéKYMéTTôMéLLE
LASERSéTEILYLLE.

VARNING - OM APPARATEN ANVéNDS
Pè ANNAT SéTT éN I DENNA
BRUKSANVISNING SPECIFICERAS. KAN
ANVéNDAREN UTSéTTAS FôR OSYNLIG
LASERSTRèLNING, SOM ôVERSKRIDER
GRéNSEN FôR LASERKLASS 1.

CAUTION-INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO
BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA
EJ IN I STRALEN OCH BETRAKTA EJ STRALEN MED OPTISKA INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING VED ABNING. SE IKKE IND I
STRALEN-HELLER IKKE MED OPTISKE INSTRUMENTER.

VARO! AVATTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE.
ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN LAITTEEN LAPI.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD.
STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN GENOM OPTISKT
INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE
INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.

Laser Diode Properties

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

QT-CD210H for Europe

CAUTION

● This Portable CD Stereo System is classified
as a CLASS 1 LASER product.

● The CLASS 1 LASER PRODUCT label is lo­cated on the rear cover.

● Use of controls, 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

CAUTION-INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO
BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA
EJ IN I STRALEN OCH BETRAKTA EJ STRALEN MED OPTISKA INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING VED ABNING. SE IKKE IND I
STRALEN-HELLER IKKE MED OPTISKE INSTRUMENTER.

VARO! AVATTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE.
ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN LAITTEEN LAPI.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD.
STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN GENOM OPTISKT
INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE
INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.

As the laser beam used in this compact disc
player is harmful to the eyes, do not attempt to
disassemble the cabinet. Refer servicing to
qualified personnel only.

QT-CD210H for Australia/New Zealand/Thailand/Philippines/QT-CD210W

– 2 –

LASER KLASSE 1
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT

QT-CD210H for Europe QT-CD210H for U.K.

IMPORTANT SERVICE NOTES (QT-CD210H FOR U.K. ONLY)

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.

QT-CD210H/W

Set name

Set value
Withstanding Voltage Tester
Test voltage

Set time
Set current (Cutoff current)

4,240 VPEAK

3,000 VRMS

6 secs

4 mA

WITHSTANDING

VOLTAGE TESTER

AC

PROBE

OUT

UNIT

Unit
Judgment
OK: The “GOOD” lamp lights.

SHORT-CIRCUT
AC POWER
SUPPLY CORD

CONNECT THE PROBE
TO GND OF CHASSIS
SCREW TERMINAL

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

VOLTAGE SELECTION (QT-CD210W ONLY)

The voltage selector is located on the AC voltage selector box. If adjustment is necessary, use a screwdriver in order to turn the
selector in either direction unitil the correct voltage figure is displayed in the window next the adjustment screw.

AC POWER SUPPLY CORD AND AC PLUG ADAPTOR (FOR QT-CD210W)

QACCA0001SJ00

QPLGA0253AFZZ

QACCB0001SJ00

QACCE0001SJZZ QPLGA0250AFZZ

– 3 –

QT-CD210H/W

g

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

QT-CD210H/W

SPECIFICATIONS

● General

Power source:
(QT-CD210H for
U.K./Europe)

Power source:
(QT-CD210H for
Australia/

AC 230-240 V, 50 Hz
DC 9 V ["D" size (UM/SUM-1, R20
or HP-2) battery × 6]

AC 230-240 V, 50 Hz
DC 9 V ["D" size (UM/SUM-1, R20
or HP-2) battery × 6]

New Zealand/
Thailand)

Power source:
(QT-CD210H for
Philippines)

Power source:
(QT-CD210W)

AC 220 V, 60 Hz
DC 9 V ["D" size (UM/SUM-1, R20
or HP-2) battery × 6]

AC 110-127/220-240 V, 50/60 Hz
DC 9 V ["D" size (UM/SUM-1, R20
or HP-2) battery × 6]

Power
consumption:

8 W

(QT-CD210H)

Power
consumption:

10 W

(QT-CD210W)
Output power:

(QT-CD210H for
U.K./Australia/
New Zealand/

MPO; 8.4 W (4.2 W + 4.2 W)

(AC operation, 10 % T.H.D.)
RMS; 4.6 W (2.3 W + 2.3 W)
(DC operation, 10 % T.H.D.)

Thailand/
Philippines/
QT-CD210W)

Output power:
(QT-CD210H for
Europe)

MPO; 8.4 W (4.2 W + 4.2 W)
(AC operation, DIN 45 324)
RMS; 4.6 W (2.3 W + 2.3 W)
(DC operation, DIN 45 324)

Speakers: 10 cm (4") full-range speaker x 2
Output
terminals:

Headphones; 16-50 ohms
(recommended; 32 ohms)

Dimensions: Width; 400 mm (15-3/4")

Height; 158 mm (6-1/4")
Depth; 212 mm (8-3/8")

Wei

ht: 2.2 kg (6.0 lbs.) without batteries

● Radio
Frequency

range:

FM; 87.5 - 108 MHz
AM; 526.5 - 1,606.5 kHz

(QT-CD210H)

● Radio
Frequency

range:

FM; 88 - 108 MHz
AM; 526.5 - 1,606.5 kHz

(QT-CD210W)

● Tape recorder
Frequency
response: 50 - 14,000 Hz (Normal tape)
Signal/noise
ratio: 50 dB
Wow and
flutter:

0.3 % (DIN 45 511)

(QT-CD210H for
Europe)

Wow and
flutter:

0.25 % (WRMS)

(QT-CD210H for
U.K./Australia/
New Zealand/
Thailand/
Philippines/
QT-CD210W)

Motor:
Bias system:
Erase system:

DC 9 V electric governor
AC bias
Magnet erase

● Compact disc player
Type:
Signal
readout:

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

Audio
channels: 2
Filter: 8-times oversampling digital filter

D/A
converter: 1-bit D/A converter

Wow and
flutter:

Unmeasurable
(less than 0.001% W. peak)

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

– 4 –

11.

(TAPE) Record Button

12.

(TAPE) Play Button

13.

(TAPE) Rewind Button

14.

(TAPE) Fast Forward Button

15.

(TAPE) Stop/Eject Button

16.

(TAPE) Pause Button

17.

Cassette Compartment

18.

CD Compartment

19.

CD Eject Button

10.

Tuning Control

11.

(CD) Stop Button

12.

(CD) Track Down/Review Button

13.

Volume Control

14.

Stand-by, On/Function Switch

15.

(CD) Track Up/Cue Button

16.

(CD) Play/Pause Button

17.

(CD) Play Indicator

18.

(CD) Pause Indicator

19.

FM Telescopic Rod Aerial

20.

Headphone Socket

21.

Battery Compartment

22.

Voltage Selector Switch (QT-CD210W Only)

23.

AC Power Input Socket

NAMES OF P ARTS

Illustration: QT-CD210W

12

12

11

17
18

3

13

456

14 15

19

21

QT-CD210H/W

789

16

20

VOLTAGE

SELECTOR

AC
220V - 240V

AC
110V - 127V

22

10

23

FITTING OF DIAL POINTER

Setting method of the dial pointer

1. Remove the front cabinet. (Refer to Fig.8-1 on page 8,
"Disassembly method".)

2. Remove the dial pointer.

3. Insert the dial pointer from A of the top cabinet so that it

engages with the drum gear.

4. Fully turn the drum in the opposite direction of B and set

it to the FL marks.

5. Reassemble the front cabinet.

FL Mark

Carved Seal

FH

FL

Top Cabinet

Dial Pointer

Dial Pointer

Top Cabinet

Main
PWB

Dial
Pointer

Drum

Drum

Top Cabinet

Tuning
Knob

A

B

Main
PWB

Drum

Mark

Figure 5-1

Variable Capacitor

Figure 5-2

– 5 –

QT-CD210H/W

4

Listening to a CD

5

To stop playback

1

4

2

3

Label side up.

3

Listening to the radio

■

Aerial adjustment

FM

AM

1

After use

2

Tune in to the desired station.

2

AC power lead x 1

To AC INPUT

(For U.K.)

AC 230 - 240 V, 50 Hz

To an AC socket

1

Check the supplied accessory

2

Preparation for use

■

AC power (For QT-CD210H)

■

Headphone s

■

Volume control

■

Tuning the power ON

and to STAND-BY

■

Battery power

1

● QT-CD210H for

customers in

Australia and

New Zealand

● QT-CD210H for

customers in

Philippines

● QT-CD210H for

customers in

Thailand and Europe

● QT-CD210H for

customers in U.K.

(For Australia/New Zealand)

AC 230 - 240 V, 50 Hz

(For Philippines)

AC 220 V, 60 Hz

● For QT-CD210W

● For QT-CD210W ● For QT-CD210W

VOLTAGE SELECTOR

AC

110V - 127V

AC

220V - 240V

1

2

To AC INPUT

AC 110-127/220-240 V,

50/60 Hz

To an AC socket

■

AC power (For QT-CD210W)

●

6 “D” size batteries (UM/SUM-1,

R20, HP-2 or similar)

●

Batteries are not included.

5

4

6

1

3

2

(For Thailand/Europe)

AC 230 - 240 V, 50 Hz

OPERATION MANUAL

– 6 –

QT-CD210H/W

6

Recording from CDs

4

5

6

2

Label side up.

To stop recording

3

1

5

Listening to a tape

1

4

2

To stop playback

3

3

7

Recording from the radio

Do not touch the Laser pickup lens. If fingerprints

or dust accumulate on the pickup, clean it using

commercial cleaning disc (brush type.)

CD pickup cleaning

2

To stop recording

4

6

5

1

Tune in to the

desired station.

3

●

4

– 7 –

QT-CD210H/W

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) x7 8-1

Front Cabinet 2. Socket .................. (A2) x1

2 Power PWB 1. Screw ................... (B1) x2 8-2

2. Hook..................... (B2) x2

3. Socket .................. (B3) x1

4. Hook..................... (B4) x2

3 Main PWB/ 1. Socket ..................(C1) x1 8-2

CD Control PWB 2. Screw ................... (C2) x7

(Note) 3. Screw ...................(C3) x1

4. Solder................... (C4) x3

5. Socket ..................(C5) x3 8-3

6. Screw ...................(C6) x2

4 CD Mechanism 1. Screw ................... (D1) x3 8-3

5 Tape Mechanism 1. Screw ................... (E1) x4 8-3

Top Cabinet

Front Cabinet

Main
PWB

(A2)x1

Power Transformer

SW651
(Voltage Selector)
QT-CD210W Only

Main PWB

(B4)x2

(B2)x2

Power PWB

(D1)x3
ø2.5x10mm

Washer

(C5)x1

Power
Transformer

(C2)x7
ø3x12mm

(B1)x2
ø3x12mm

Figure 8-2

CD Mechanism

AC Socket

(C5)x2

(C3)x1
ø2.5x8mm

CD Lid
Switch

Top Cabinet

(E1)x4
ø3x10mm

(B3)x1

(C1)x1

(C4)x3

(A1)x4
ø3x12mm

(A1)x3
ø3x12mm

REMOVING AND REINSTALLING THE MAIN PARTS

CD MECHANISM SECTION

Perform steps 1 to 4 of the disassembly method to remove the
CD mechanism.

How to remove the pickup (See Fig. 8-4.)

1. Remove the screws (A1) x 2 pcs., to remove the shaft (A2)
x1 pc.

2. Remove the stop washer (A3) x1 pc., to remove the gear
(A4) x 1 pc.

3. Remove the pickup.

Note : (Figure 8-3 and Figure 8-4)

After removing the connector for the optical pickup from the

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

(C6)x2
ø3x8mm

(A1) x2

ø2.6 x6mm

Pickup

Shaft
(A2) x1

CD Control
PWB

Figure 8-3Figure 8-1

Gear
(A4) x1

Figure 8-4

Tape
Mechanism

Top Cabinet

CD
Mechanism

Stop
Washer
(A3) x1

– 8 –

QT-CD210H/W

TAPE MECHANISM SECTION

Perform steps 1 to 5 of the disassembly method to remove the
tape mechanism. (See page 8.)

How to remove the record / playback and erase
heads (See Fig. 9-1.)

1. Remove the screws (A1) x 2 pcs., to remove the record/
playback head.

2. Remove the hooks (A2) x 2 pcs., toward the center position

as shown in Fig. 5-1. and then extract the erase head
upward.

Note:

After replacing the heads and performing the azimuth
adjustment, be sure to apply screwlock.

How to remove the pinch roller (See Fig. 9-2.)

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

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

Hook
(A2)x2

Erase Head

Pinch Roller
(B1)x1

(A1) x1
ø2x7mm

(A1) x1
ø2x3mm

Record/Playback
Head

Figure 9-1

<A>

Pinch Roller
Pawl

Figure 9-2

How to remove the belts (See Fig. 9-3.)

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.

How to remove the motor
(See Figs. 9-4.)

1. Remove the mainbelt.

2. Remove the screw (D1) x 1 pc., to remove the motor mount.

3. Remove the screws (D2) x 2 pcs., to remove the motor.

Note:

When mounting the motor, pay attention to the motor mounting
angle.

How to remove the flywheel (See Fig. 9-5.)

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.

Flywheel

FF/REW Belt
(C2)x1

Motor

Motor Mount

(E1) x 1
Stop Washer

Main Belt
(C1)x1

Washer

Flywheel

Figure 9-3

(D2)x2
Special
Screw

(D1)x1
Special
Screw

Figure 9-4

Motor

REW/FF
Clutch Ass'y

Motor
Mount

Motor

How to reinstall the parts

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

Figure 9-5

– 9 –

QT-CD210H/W

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter

PLAY: TW-2412 Over 120 g

• Torque Check

Torque Meter

Play: TW-2111 25 to 65 g.cm
Fast Forward: TW-2231 60 to 130 g.cm
Rewind: TW-2231 60 to 130 g.cm

• Head Azimuth

Torque Meter

MTT-114 Output: Speaker Terminal

(CNP201 Load resistance: 4 ohms)

• Tape Speed

Test

Tape

Adjusting

Point

MTT-111 Variable 3,000 ± 90 Hz Output: Speaker

resistor in Teaminal
motor. (M601) (CNP201 Load

Specified

Specified Value

Specified Value

Value

Specified Value

Instrument

Connection

resistance: 4 ohms)

• AM IF/RF

Test Stage

Specified

Value/Adjusting

Point

AM IF T3 Input: Antenna

AM fL: L4 Input: Antenna
Band Coverage fH: TC4 Output: Speaker
AM Tracking fL: 600 kHz: L3 Terminal (CNP201

fH: 1,400 kHz: TC3 Load resistance: 4

2

3

4

CNP101

IC101

SW102

11

12

2

L301

BIAS OSC.

1

CNP602

Instrument

Connection

Output: Pin 18 of IC1

ohms)

1

1

CNP201

123

TAPE SECTION

Position of each switch or control

Volume control Max
Function switch Tape/Power Off

• Bias Oscillation

Adjustment Point

Specified Value

L301 82 kHz ± 6 kHz Pin 1 of CNP101

Instrument

Connection

• Playback Amplifier Sensitivity Check

Test Tape

Specified Value

MTT-118 1.1 V ± 3 dB Speaker Terminal

Instrument Connection

(Load resistance: 4 ohms)

TUNER SECTION

fL: Low-range frequency
fH: High-range frequency

• FM IF/RF

Test Stage Specified

Value/Adjusting

Point

FM Detection T2

FM fL: L2
Band Coverage fH: TC2

FM Tracking fL: 88.0 MHz: L1

fH: 108.0 MHz: TC1

Instrument

Connection

Input: Pin 1 of IC1
Output: Pin 18 of IC1

Iuput: Antenna
Output: Speaker
Terminal (CNP201
Load resistance: 4
ohms)

FM ROD
ATENNA

MAIN PWB

FM
DETECTION

AM BAR
ANTENNA

T2

12

IC1

13

L4

AM BAND
COVERAGE

IC803

T3

18

L2

fL

AM IF

1

24

fH

FM BAND
COVERAGE

fL

TC2

TC4

TC1

TC3

L3

VR201

SW201

fH

fH

FM
TRACKING

fL

L1

fH

AM
TRACKING

fL

– 10 –

Figure 10 ADJUSTMENT POINTS

QT-CD210H/W

C853

C8 6

2

3

2

R804

8

80

81

CD SECTION

Since this CD system incorporates the following automatic adjustment function, when the pickup is replaced, it is not necessary
to reajust it.
Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.

TEST MODE

Start
Note

While holding down the "PLAY" button, move the FUNCTION/POWER switch to "CD".

1. When the CD LID switch is in the OFF position, (CD LID is open) the unit will be able to enter the test mode.
However, can use the "UP/CUE" and "DOWN/REVIEW" button only.

2. You can only move the pickup.

3. The LCD display should be the same as it is for normal CD operations.

Operation

The use of the "UP/CUE" button will move the pickup to the outermost position.
The use of the "DOWN/REVIEW" button will move the pickup to the innermost position.

LCD MODE

Start

Display

After connecting of the 10kΩ resistor between IC802 27 pin and GND and holding down the "PLAY" button, move
the FUNCTION/POWER switch to "CD".

LASER LIGHTING CONFIRMATION

1. Remove the front cabinet according to the disassembly method.

2. Short the TP of the Figure 11-1 to turn on the CD LID SW 810.

3. While holding down the "PLAY" button, move the FUNCTION/POWER switch to "CD".

4. Open the CD LID and press the PLAY button. The laser lights up for a few seconds. (At this time, the pickup lens moves up
and down and adjusts the focus to check if there is a disc or not.)

BI801

C806

WH

7

WH

6

WH

5

WH

4

WH

3

WH

2

BK

1

1
CNS801

7
5
2

3

MAIN PWB-A1

COR1

10

17

OPEN/CLOSE

R801

C839

15

10

5

1

C815

C801

C802

BC

C835

16

20

IC803

25

30

E

C834

R80

R853

C807

Q801

C805

C856

C8

C817

C838

R852

R851

60

55

45

C843

1

C83

51
50

C823

WHGYGYGYGY

C855

100

R839

1

R862

R844

R846

C824

95

5

R861

90

10

75

85

IC802

15

20

R843

70

25

30

C825

65

40

35

31

16

TP

C830

R826

R824

R821

BI803

R828

C827

R827

GY

C841

C826

C842

6

C828

R820

SW810
CD LID

BK

BK

13
12

R6

1

R4

L1

TC1

TC3

C21

Figure 11-1

– 11 –

F1

2

C2

VC1

VC3

T2

R7

T3

C22

D2

C11

3

1

C1

C3

TC2

VC2

VC4

C5

TC4

CF1

3

R1

2
1

1

2

3

C12

CF3

R3

C15

C14

5

2024

L2

IC1

R2

L4

12

10

15

13

C4

C7

C6

R10

R11

R8

R9

C13

C17

C16

C18
C19

C20

C8

C9

D1

R5

C10