Sharp QTCD-250 Service manual

QT-CD250

SERVICE MANUAL

No. S2014QTCD250/

QT-CD250

• 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.

CONTENTS

Page

IMPORTANT SERVICE NOTEST (FOR U.S.A. ONLY) .................................................................................................... 2

SPECIFICATIONS ............................................................................................................................................................. 2

NAMES OF PARTS ........................................................................................................................................................... 3

OPERATION MANUAL ...................................................................................................................................................... 4

DISASSEMBLY.................................................................................................................................................................. 5

REMOVING AND REINSTALLING THE MAIN PARTS..................................................................................................... 5

ADJUSTMENT ................................................................................................................................................................... 7

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 11

TYPES OF TRANSISTOR ............................................................................................................................................... 11

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

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

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 16

TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 17

FUNCTION TABLE OF IC................................................................................................................................................ 21

PARTS GUIDE/EXPLODED VIEW
PACKING OF THE SET (FOR U.S.A. ONLY)

SHARP CORPORATION

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

QT-CD250

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

IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)

BEFORE RETURNING THE AUDIO PRODUCT

(Fire & Shock Hazard)
Before returning the audio product to the user, perform the
following safety checks.

1. Inspect all lead dress to make certain that leads are not
pinched or that hardware is not lodged between the chassis
and other metal parts in the audio product.

2. Inspect all protective devices such as insulating materials,
cabinet, terminal board, adjustment and compartment
covers or shields, mechanical insulators etc.

3. To be sure that no shock hazard exists, check for leakage
current in the following manner.

* Plug the AC line cord directly into a 120 volt AC outlet.
* Using two clip leads, connect a 1.5k ohm, 10 watt resistor

paralleled by a 0.15µF capacitor in series with all exposed
metal cabinet parts and a known earth ground, such as
conduit or electrical ground connected to earth ground.

* Use a VTVM or VOM with 1000 ohm per volt, or higher,

sensitivity to measure the AC voltage drop across the
resistor (See diagram).

* Connect the resistor connection to all exposed metal parts

having a return path to the chassis (antenna, metal cabinet,
screw heads, knobs and control shafts, escutcheon, etc.)
and measure the AC voltage drop across the resistor.

VTVM

AC SCALE

1.5k ohms
10W

0.15 µ F

TO EXPOSED
METAL PARTS

All check must be repeated with the AC line cord plug connection
reversed.
Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp.
AC.) or more is excessive and indicates a potential shock
hazard which must be corrected before returning the audio
product to the owner.

TEST PROBE

CONNECT TO
KNOWN EARTH
GROUND

SPECIFICATIONS

● General
Power source: AC 120 V, 60 Hz

DC 9 V [ "D" size (UM/SUM-1, R20
or HP-2) battery × 6]
DC 4.5 V [ "AA" size (UM/SUM-3,
R6 or HP-7) battery × 3 for backup
memory]

Power
consumption: 12 W
Output power: FTC; 2.0 W min. RMS per channel

into 4 ohms from 150 Hz to 20
kHz, with no more than 10 % total
harmonic distortion.
RMS; 2.3 W/CH
(DC operation, 10 % T.H.D.)

Speakers: 4" (10 cm) full-range speaker x 2
Output
terminals:
Dimensions: Width; 15-3/4" (400 mm)

Weight: 6.0 lbs. (2.7 kg) without batteries

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

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

● Compact disc player

Type: Compact disc
Signal
readout:

Non-contact, 3-beam semi-conduc­tor laser pickup

Audio
channels: 2
Quantization: 16-bit linear quantization
Filter: 8-times oversampling digital filter
D/A converter: 1-bit D/A converter
Wow and
flutter:

Unmeasurable
(less than 0.001% W. peak)

● Radio
Frequency

range:

FM; 87.5 - 108 MHz
AM; 530 - 1,720 kHz

● Tape recorder
Frequency

response: 50 - 14,000 Hz (Normal tape)
Signal/noise
ratio: 50 dB
Wow and
flutter: 0.25 % (WRMS)
Motor: DC 9 V electric governor
Bias system: AC bias
Erase
system: Magnet erase

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

– 2 –

1

234

5

NAMES OF P ARTS

6

7

8

QT-CD250

9

10

11

12

17

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) Stop Button

3

(TUNER) Tuning Down Button

10.

(CD) Repeat Button

3

(TUNER) Band Selector Button

11.

(TUNER) Preset Memory Button

12.

Extra Bass Button

13.

(CD) Play/Pause Button

3

(TUNER) Tuning Up Button

14.

(CD) Track Up/Cue Button

3

(TUNER) Preset Up Button

15.

(CD) Track Down/Review Button

3

(TUNER) Preset Down Button

16.

Volume Up/Down Buttons

17.

Power/Function Switch

18.

(CD) Play Indicator

19.

(CD) Repeat Indicator

18

19

20

21

22 23

13

25

26

14
15

16

29

24

30
31

32

33

20.

(CD) Pause Indicator

21.

Extra Bass Indicator

22.

(TUNER) Memory Indicator

23.

(TUNER) FM Stereo Mode Indicator

24.

(TUNER) FM Stereo Indicator

25.

Battery Compartment

26.

FM Telescopic Rod Antenna

27.

Headphone Jack

28.

AC Power Input Jack

29.

Backup Memory Battery Compartment

30.

(CD) Play/Pause Button

3

(TUNER) Tuning Up Button

31.

(CD) Track Down/Review Button

3

(TUNER) Preset Down Button

32.

(CD) Stop Button

3

(TUNER) Tuning Down Button

33.

(CD) Repeat Button

3

(TUNER) Band Selector Button

34.

(TUNER) Memory Button

35.

(TUNER) Clear Button

36.

(CD) Track Up/Cue Button

3

(TUNER) Preset Up Button

37.

Extra Bass Button

38.

Volume Up/Down Buttons

27 28

34

35
36
37

38

REMOTE CONTROL

Remote Sensor

15

15

8" - 20'
(0.2 m - 6 m)

Notes:

● Replace the batteries if the operating distance is
reduced or if the operation becomes erratic.

● Periodically clean the transmitter LED on the
remote control and the sensor on the main unit
with a soft cloth.

● Exposing the sensor on the main unit to strong
light may interfere with operation. Change the
lighting or the direction of the unit.

● Keep the remote control away from moisture,
excessive heat, shock, and vibrations.

– 3 –

QT-CD250

5

4

6

1

3

2

1

Preparation for use /

Preparación para su uso

■ AC power

■

Funccionamiento con corriente alterna

■ Battery power

■

Funccionamiento con pilas

To an AC socket

A un tomacorriente de CA

T o AC INPUT

A la toma AC INPUT

AC 120 V, 60 Hz

120 V de CA, 60 Hz

● 6 “D” size batteries

(UM/SUM-1, R20, HP-2 or similar)

●

6 pilas del tamaño “D”

(UM/SUM-1,R20,HP-2 o similares)

● Batteries are not included.

●

Las pians no están incluidas.

■ Headphones

■

Auriculares

■ Turning the power ON

and to OFF

■

Conexión(ON) y

desconexión(OFF) de la

alimentación

TUNER

OFF POWER

■ Volume control

■

Control del volumen

Quick Guide /

Guía rápida

2

Listening to a CD /

Audictión de discos CD

To stop the playback

Press the ■ button.

TUNING

PLAY / PAUSE

OFF POWER

● Label side up.

●

Con el lado de

la etiqueta

encarada hacia

arriba.

Para detener la

reproducción

Pulse el botón

■

.

1

23

4

5

TUNER

3

Listening to a tape

/

Audictión de una cinta

TUNER

OFF POWER

4

Listening to the radio /

Audictión de la radio

5

Recording from CDs /

Grabaciones de discos CD

TUNER

OFF POWER

● Load the disc to be

recorded.

●

Introduzca el disco que

va a grabar.

1

2

3

123

134

BAND

REPEAT

TUNING

PLAY / PAUSE

TUNER

OFF POWER

2

TUNING

PLAY / PAUSE

Para detener la

reproducción

Pulse el botón

.

To stop the playback

Press the button.

To stop the recording

Press the button.

Para detener la

grabación

Pulse el botón

.

OPERATION MANUAL

– 4 –

DISASSEMBLY

Top Cabinet

AC Socket

(B1)x2
ø3x12mm

(D2)x7
ø3x12mm

(C1)x2
ø3x12mm

(C4)x4
ø3x10mm

(D3)x1
ø2.5x8mm

Main PWB

Power PWB

(D4)x3

(B3)x1

(B2)x2

(B4)x2

(D1)x1

CD Lid
Switch

Power Transformer

Terminal
PWB

(C3)x2

Switch PWB

(C2)x1

(E1)x3
ø2.5x10mm

(F1)x4
ø3x10mm

(D5)x1

(D5)x2

Top Cabinet

(D6)x6
ø3x8mm

(D7)x2

Washer

CD Mechanism

CD Control
PWB

Tape
Mechanism

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 5-1

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

2 Power PWB/ 1. Screw ................... (B1) x2 5-2

Terminal PWB 2. Hook..................... (B2) x2

3 Switch PWB 1. Screw ................... (C1) x2 5-2

4 Main PWB/ 1. Socket .................. (D1) x1 5-2

CD Control PWB 2. Screw ...................(D2) x7

(Note) 3. Screw ................... (D3) x1

5 CD Mechanism 1. Screw ................... (E1) x3 5-3

6 Tape Mechanism 1. Screw ................... (F1) x4 5-3

Top Cabinet

3. Screw ................... (A3) x1

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

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

2. Socket .................. (C2) x1

3. Hook..................... (C3) x2

4. Screw ................... (C4) x4

4. Solder................... (D4) x3

5. Socket .................. (D5) x3 5-3

6. Screw ................... (D6) x6

7. Hook..................... (D7) x2

SP202

R-CH

QT-CD250

Figure 5-2

CD MECHANISM SECTION

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

How to remove the pickup (See Fig. 5-4.)

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

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

3. Remove the pickup.

Note : (Figure 5-3 and Figure 5-4)

After removing the connector for the optical pickup from the

(A3)x1
ø3x10mm

Front Cabinet

Main
PWB

(A2)x1

(A1)x4
ø3x12mm

x1 pc.
(A4) x 1 pc.

REMOVING AND REINSTALLING THE MAIN PARTS

(A1)x3
ø3x12mm

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

– 5 –

(A1) x2

ø2.6 x6mm

Pickup

Shaft
(A2) x1

Figure 5-3Figure 5-1

Gear
(A4) x1

Figure 5-4

CD
Mechanism

Stop
Washer
(A3) x1

QT-CD250
TAPE MECHANISM SECTION

Perform steps 1 to 6 of the disassembly method to remove the
tape mechanism. (See page 5.)

How to remove the record / playback and erase
heads (See Fig. 6-1.)

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. 6-1. 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. 6-2.)

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

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

Hook
(A2)x2

Erase Head

Pinch Roller
(B1)x1

(A1) x1
ø2x7mm

(A1) x1
ø2x3mm

Record/Playback
Head

Figure 6-1

<A>

Pinch Roller
Pawl

Figure 6-2

How to remove the belts (See Fig. 6-3.)

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. 6-4.)

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. 6-5.)

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 6-3

(D2)x2
Special
Screw

(D1)x1
Special
Screw

Figure 6-4

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 6-5

– 6 –

ADJUSTMENT

SW102

CNP101

L301

CNP602

R7

L1

L2

IC1

T3

TC1

HPJ201
HEADPHONE

L4

IC101

1

12

11

2

CNP201

123

1

2

3

FM IF

AM BAND
COVERAGE fL

TP1

L3
AM BAR
ANTENNA

AM
TRACKING fL

AM
TRACKING fH

AM IF

1

13

16

12

24

FM BAND
COVERAGE fL

BIAS OSC.

1

2

3

4

MAIN PWB

QT-CD250

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

TAPE SECTION

Volume control Max
Function switch Tape/Power Off
X-BASS On

Position of each switch or control

Specified

Value

Specified Value

Specified Value

Specified Value

Instrument

Connection

resistance: 4 ohms)

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage

Frequency Frequency

Display

AM IF 450 kHz 1,720 kHz T3 *1
AM Band — 530 kHz (fL): L4 *3

Coverage 1.0 ±0.05V
AM Tracking 600 kHz 600 kHz (fL): L3 *2

1,400 kHz 1,400 kHz (fH): TC1

Setting/

Adjusting

Parts

*1. Input: Antenna, Output: Pin 16 of IC1
*2. Input: Antenna, Output: Speaker Terminal

*3. Input: Input is not connected, Output: TP1

Instrument

Connection

• Bias Oscillation

Adjustment Point

Specified Value

L301 82 kHz ± 6 kHz Pin 2 of CNP201

- 6 kHz

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 RF

Signal generator: 1 kHz, 75 kHz dev., FM modulated

Test Stage

Frequency

Frequency

Display

Serring/

Adjusting

Point

FM Band — 87.5 MHz (fL): L2 *1

(10-30 dB)

Coverage 1.7 V ± 0.05V
FM RF 98.0 MHz 98.0 MHz L1 *2

*1. Input: Antenna, Output: TP1
*2. Input: Antenna, Output: Speaker terminal

Instrument

Connection

Figure 7 ADJUSTMENT POINTS

– 7 –

QT-CD250

A. CD TEST MODE

Set the function switch to "CD" when pressing the "REVIEW(PRESET DOWN )" button together with "STOP(TUNING DOWN)"
button.

Step-1. CD Pickup can be move when press the "CUE" button either "REVIEW" button.
"CUE" button : CD Pickup move to out side of disc.
"REVIEW" button : CD Pickup move to in side of disc.
(CD Pickup can't move any more, if reach to most in side.)
Note: If the CD Lid open (SW810 open), the unit can be operate Step-1 only and the unit can't operate from Step-2 to Step-5.

Step-2. The LASER light up when press the "PLAY/PAUSE" button.

Step-3. CD disc can be playing mode when press the "PLAY/PAUSE" button during the LASER ON.

The LCD displays indicate the "Track Number" and the "Playing Time".

Step-4. CD disc will be stop and the LASER goes out when pressing the "STOP" button, and return back to Step-1. (CD Pickup
position keeps at that point).

Step-5. It can be control to ON/OFF of the Tracking Servo when press the "MEMORY" button during the CD playing mode.
(The Servo will be ON when playing mode again, if to make stop mode during the Servo OFF condition.)

The LCD displays indicate the playing time of CD Pickup point.
(The LCD displays indicate the playing time at that point when Pickup moving, if press the "CUE" button or press the "REVIEW"
button.)

– 8 –

QT-CD250

B. TUNER TEST MODE

Set the function switch to "TUNER" when pressing the "REVIEW(PRESET DOWN )" button together with "BAND(REPEAT)"
button.

The LCD displays indicate the "TunEr" for several seconds. after that, the LCD displays indicate to the normal frequency.

PRESET.

NO

P-01 FM 87.5 MHz STEREO
P-02 FM 108.0 MHz STEREO
P-03 FM 98.0 MHz STEREO
P-04 FM 90.0 MHz STEREO
P-05 FM 106.0 MHz STEREO
P-06 AM 530 KHz
P-07 AM 1720 KHz
P-08 AM 990 KHz
P-09 AM 600 KHz
P-10 AM 1400 KHz
P-11 FM 106.0 MHz MONO
P-12 FM 90.0 MHz MONO
P-13 FM 98.0 MHz MONO
P-14 FM 108.0 MHz MONO
P-15 FM 87.5 MHz MONO

U.S.A.

FM MODE

Note:

1. The Preset Channel can be change when press the "PRESET UP (CUE) button either "PRESET DOWN (REVIEW)" button.
PRESET UP button is pressed : P-01 -> P-02 -> > > > > P-15 -> P-01
PRESET DOWN button is pressed : P-15 -> P-14 -> > > > > P-01 -> P-15

2. The Tuner Mode can be change when press the "BAND (REPEAT)" button.
BAND button is pressed : FM stereo -> FM mono -> AM -> FM stereo

C. LCD TEST MODE

Set the function switch to "TUNER (or CD)" when pressing the "REVIEW(PRESET DOWN )" button together with "MEMORY"
button.

All of the segments will light up.

– 9 –

QT-CD250

D. VOLUME TEST MODE

Set the function switch to "POWER ON (TAPE PLAY, TUNER or CD)" when pressing the "REVIEW(PRESET DOWN )" button
together with "PLAY/PAUSE (TUNING UP)" button.
The LCD display do not indicate the VOLUME level at this time.
But, the VOLUME level is "12" which is defaults level.

The VOLUME LEVEL can be change when press the "VOLUME UP" button either press the "VOLUME DOWN" button.
"VOLUME UP" button is pressed : (12 VoL) -> 30 VoL -> 30 VoL (30 is flashing)

"VOLUME DOWN" button is pressed : (12 VoL) -> 1 VoL-> 0 VoL -> 0 VoL (0 is flashing)

– 10 –

NOTES ON SCHEMATIC DIAGRAM

QT-CD250

• Resistor:
To differentiate the units of resistors, the 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 an
ohm resistor. The resistor designated "Fusible" is a fuse type
resistor

• 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

• The indicated voltage in each section is the one measured by
Digital Multimeter between such a section and the chassis
with no signal given.

REF. NO

SW102 RECODE/PLAYBACK REC—P.B.
SW201 FUNCTION SELECTOR TAPE/OFF—

SW601 TAPE MAIN OFF—ON
SW702 PICKUP IN OFF—ON
SW801 PLAY/PAUSE/ OFF—ON

SW802 STOP/TUNING DOWN OFF—ON
SW803 REPEAT/BAND OFF—ON
SW804 TUNER/MEMORY OFF—ON
SW805 CUE/PRESET UP OFF—ON
SW806 REVIEW/ OFF—ON

SW807 VOLUME UP OFF—ON
SW808 VOLUME DOWN OFF—ON
SW809 X-BASS OFF—ON
SW810 CD LID OFF—ON

DESCRIPTION

TUNING UP

PRESET DOWN

POSITION

TUNER/ON—CD/ON

1. Tuner
( ): AM mode
Marking except for ( ): FM mode

2. CD
( ): Play mode
Marking except for ( ): Stop state

3. Deck section
( ): Record mode
Marking except for ( ): Playback mode
Display / Control section:
( ): Active state
Marking except for ( ): CD Function mode at stop state

• Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.

• 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.

FRONT

VIEW

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

KRA102 M
KRC107 M
KTA1046 Y
KTA1266 GR
KTA1273 Y
KTC3199 GR

Figure 11 TYPES OF TRANSISTOR

– 11 –

QT-CD250

R

1/50

M

GND(AUDIO)

2
C

SW810

CD LID
OPEN/CLOSE

PICK-UP UNIT

LD

MON

LTOH30P1

TR+

FO+

FO-

TR-

2200P

K
E
B

A
F
C

2200P

1M

1M

M702
SPINDLE
MOTOR

M701
SLED
MOTOR

SW702
PICKUP IN

+

M

-

+

M

-

A

B

C

CD MOTOR PWB-B

PIN

VOLTAGE

NO.

0.82V(0V)

1

0V(0V)

2

0.V

3

3.5V(4.1V)

4

3.7V(4.1V)

5

3.2V(4.1V)

6

3.7V(4.1V)

7

GND

8

0.4V(0.1V)

9

3.0V(3.6V)

10

1.2V

11

1.2V

12

D

E

IC51

VOLTAGE

PIN
NO.

FM ST

FM MONO AM

1

1.6V

1.6V

2

GND

GND

3

0.V

0.V

4

0V

0V

5

0V

0V

6

4.9V

4.9V

7

-

-

8

3.1V

0V

9

2.9V

2.9V

10

0V

0V

11

5.0V

5.0V

12

0V

0V

13

0.9V

0.9V

14

GND

GND

15

0V

0V

16

1.5V

1.5V

17

3.2V

3.2V

18

0.9V

0.9V

19

0.9V

0.9V

20

1.7V

1.7V

21

GND

GND

22

1.6V

1.6V

FM
ROD
ANTENNA

SP+
SP­SL+
SL­PU-IN
GND

IC1

PIN
NO.

13
14
15
16
17
18
19
20

21
22
23
24

K
E

A

B
F

R­R+
F+
F­G
PD
VR
LD

5
4
3
2
1

1
2
3
4
5
6
7
8

6
5
4
3
2
1

VOLTAGE

2.9V(0V)

3.1V

0.7V

1.0V

0.9V

5.0V

3.6V(4.0V)

3.7V(4.1V)

3.7V(4.1V)

3.7V(4.1V)

3.7V(4.1V)

3.7V(4.1V)
( ): AM

2V
GND

0.V
0V
0V

4.9V

-

0.7V
0V
0V

5.0V
0V

0.9V
GND

2.0V
0V

4.2V

0.9V

0.9V

1.0V
GND

2.6V

CNP803

CNS802

5 1 5
4

1
2
3
4
5
6
7
8

CNS801

6
5
4
3
2
1

CNS803

BI802

4
3 2 3
2
1

1
2
3
4
5
6
7

BI801

6
5
4
3
2
1

BI803

8

K
E
A
B
F

TR+
TR­FC+
FC­GND
PD
VR
LD

DM+
DM­FM+
FM­SLT+
SLT-

C856

100P

AM TRACKING fL

AM BAR ANTENNA

R2

100K

C27

0.001

R1

3.3K

VD1

KV1370NT

FM BAND

PASS

FILTER

1

+B

F1

2

F

D1

C25

1N4148

0.047

IC1
FM/AM IF MPX.,
TA2104BN

SW102
RECORD/

CNP101

1
2
3
4

SW102
RECORD/
PLAYBACK

87

9

R

SW102-C

PLAYBACK

SW102-A

R

3

6

R

SW102
RECORD/
PLAYBACK

P

G

TAPE

RECORD/
PLAYBACK HEAD

L-CH

R-CH

ERASE HEAD

CNS101

1
2
3
4

H

• The numbers 1 to 17 are waveform numbers shown in page 16.

1

2

LASER DRIVER

Q801
KTA1266 GR

R7
10K

KV1520NT

L1

FM RF

24

OUT

FM RF

FM RF

IN

AM LOW

2

3

C13

0.47/50

R103
12K

C802

0.022

COR801

+B

+B

VD3

TC1

23

CUT

4

R
19

16
R

3.7V(ON:2.1V)

C9

0.022

C32

0.1

22

VCC

FM RF

MIX

OUT

VCC

5

R101
330

SW102-F

20 21

17

SW102-G

4.4V(ON:2.8V)
R801

22

C801

0.01

30

28

29

7.5V

1.9V

1.9V

VCC

VREF

IC803
LA6541D

3

2

1

NC

1.9V

7.5V

C10

8P

C12
1/50

C5

0.1

C6

L2

FM OSC

R4

C7

10

0.001

21

IN

FM

OSC

AM RF

IC1

TA2104BN

C14

0.047

R10

330

C15

AM IF

T3

NC

R105
15K

C105

0.0018

R107

P

1K

C107
820P

C108
820P

18

R108
1K

P

C106

0.0018

R106
15K

R802

2.2K

1.9V

R811

22K

NC

26

27

VG4

VIN4

VG1

VIN1MTVCC

4

1.9V

R851

2.2K

C11
360P

R8

220K

22P(CH)

R5

22K

FM BAND
COVERAGE fL

220/10

CF3

1
AM IF

R109
120

C111
330P

C112
330P

R110
120

C817

100/10

4.4V

1.9V

1.9V

0.5V

0.5V
0V

3.8V

0V

0V

3.7V

1.9V

C813
47/16

25

24

3.4V

3.4V

VO4-

VO4+

VO1-

VO1+

6

5

7

3.4V

3.4V

GND

AM BAND
COVERAGE fL

L4

AM OSC.

R6
15K

VD2

AM IF

6

2

3

10

GND

VCC

C109
270P

C110
270P

11

12

SERVO PRE AMP.

1

2
3
4
5
6
7

8
9

KV1370NT

IN

1.4V(ON:1.9V)

IC803

FOCUS/

TRACKING/

SPIN/

SLED DRIVER

LA6541D

L3

AM TRACKING fH

C8

0.001

C3

0.01

R3

100K

C1

15P(CH)

C2

0.001

3

RF

GND

1

C33
220P

R104
12K

R102
330

P

21

54

P

SW102-B

34 5

Figure 12 SCHEMATIC DIAGRAM (1/2)

– 12 –

VCC

FNI
FPI
TPI
TNI
MDI
LDO

SEL
TEB
2VRO
TEN

TEO

23

GND

GND

8

GND

L2

0.6V

5

0V
0V

9

0.6V

IC801

TA2109F

9
10

C814

0.047

22

21

GND

3

GND

9

10

3.4V

GND

NC
NC

20

AM

OSC

FM IF

C115

0.018(ML)

3

NF1

IN1

IN2

NF2

11

+B

C815
47/16

RFN

GND

8

RFO

AGCI

RFGC

IC801

TA2109F

RFGO

RFRP

VRO

SBAD

20

3.4V

3.4V

VO3-

VO3+

2

VO2+

VO2-

11

3.4V

C34

220P

R12

10

19

OUT

OSC

CF1

3

C113
47/16

VOLTAGE:
PLAY and REC.

IC101
BA3311L

NC

4

C114
47/16

C116

0.018
(ML)

RFIS

FEN

FEO

14

R853

19

18

VG3

1.9V

1.9V

VG2

12

13

1.9V

1.9V

R852

2.2K

18

17

ST

IND

7

2

1

R113

8.2K

PRE AMP

6

R114

8.2K

C816

0.022

1.9V

24

GND

23

0.1V

22

1.9V

21

0.5V

20

1.9V

19

1.9V

18

0.9V

17

1.9V

16

1.9V

15

1.9V

0.8V

13

FOO

2.2K

TRO

NC

17

CD

VIN3

VIN2

REG OUT

14

NC

FMO
DMO

Q1
KTC3199 GR

TUNER
MUTE

R20
470

C20

330P

C23
10/16

16

IF

OUT

DET

REQ

IN

FM IF

GND

8

C16

FM DET

GND

7

NC

16

15

GND

R13
10K

C21
10/16

4.7/50

R115

3.9K

C118
10/16

R116

3.9K

R804
68K

R805
39K

C804

2P(CH)

R806

2.7K
C820

0.1(ML)

C819

0.1(ML)

R803
82K

C821
100/10

RES

C807

0.047

REG IN

NC

C805

C806

0.022

330/10

IC51
LC72121
ELECTRONIC
TUNING

0V

0V

C18 0.001

C57 100P
C58 100P

R14

2.2K

R17
47K

C26

0.1

15

14

IN

MPX

VCO

LPF1

QUAD

AGC

R-CH

11

9

10

C72

0.022

CF4

R117

3.9K

C117

10/16

3.1V

1

OUT1

8

VCC

7.3V

FILTER

10

7.3V

ALC T

2

OUT2

0V

12

3.2V

R120

R118

3.9K

R15
39K

C19

2.2/50

R16

3.3K

C22

1/50

13

LPF2

12

(ML)

C74
1/50

R72

4.7K

C119

3.3K

R807
1K

C822

0.047

C24

0.1

FM/AM

L-CH

C73
1/50

C71

0.022(ML)

C121

R119

3.3K

+B

2.2/50

C120

47/16

D102

1N4148

SW102
RECORD/
PLAYBACK

C818
56P

SWITCHING

+B

R18
100

R71

4.7K

0.01

C123
220/10

D101

1N4148

R125
680K

C122

0.01

7.5V(TUN:0V)

R73

3.3K

R74

3.3K

R121

2.7K

SW102-E

R

23

22

14

13

R

SW102-H

R122

2.7K

11

IO1

12

C68

24

R124

NC
15

Q802
KTA1273 Y

IFIN

220P

+B

SWITCHING

5.0V

(TUN:0V)

(TUN:5.0V)

R850

6.9V

1.5K

(TUN:7.5V)

(TUN:7.5V)

D804
1N4148

R58

10

9

BO3

BO4

FM/AM

VSSD

IO2

14

13

C53

Speaker Case

P

SW102
RECORD/
PLAYBACK

R123

3.3K

3.3K

P

C351

+B

L803
220µH

C863
47/16

C841

0.047

C842

0.047

C843

Q806
KTA1273 Y

4.3V

R866

3.3K

7.5V

R865

0V

SWITCHING

1K

8

ST

BO2

MONO/

AMIN

16

15

100/10

R77

C61
100/10

C29

100P

COR1

R126
100

0.0022(ML)

47/16

5.0V

R845
22K

D802
1N4148

Q803
KRC107 M

47K

4.5V

R879

4.7K

0.5V)

(TUN:

23

R55
56K

NC

FMIN

17

3.3K

+7.5V(CD)

1

GND

R61

1K

R60

1K

R59

1K

R62

5

432

7

6

DO

CL

DI

CE

BO1

LC72121

IC51

PD

AOUT

AIN

VDD

19

20

21

18

L51

R53

4.7K

100µH

C56

0.022

C60

0.0022

C59

0.01

R52

2.2K
C55

2.2/50

R54
10K

R51
150

L-CH

CD

7

TU

8

TA

9

SW201-B
SW201
FUNCTION
SELECTOR

Q209,Q210
X-BASS ON/OFF

R-CH

SW201-C

14

CD
TU

13

TA

12

IC101
REC./P.B.EQUALIZER AMP.
BA3311L

+B

SW102-D

P

R

NC

11 10

12

R351
100

BIAS OSC.

C354

L301

0.022(ML)

C352
100/10

R861
10K

+B

1K

1

XIN XOUT

VSSX

VSSA

22

C54

SW102
RECORD/
PLAYBACK

R352
150

C834
470P

C839

0.047(ML)

C51
15P
(CH)

R76
820

0.022

C75
100P

10

11

R234

2.2K

R353
33K

C353

0.0056
(ML)

C832
47/16

C835
470P

C836

0.047(ML)
C837

0.047(ML)
C838

0.047(ML)

C52
12P
(CH)

5.0V
(CD: 0.4V)

R233

2.2K

R235

R236

Q351

KTC3199 GR
0V
(REC: 0.4V)

C825
47/16

C826
47P

R820

47K

R827
15K

C830

0.01(ML)

C828

0.0027

C829

0.0047

+B

R828
10K

C833

0.033(ML)

R812
1K

C854

0.0068

R854
100

SWITCHING

X51

4.5MHz

2

3

Q2

KRA102 M

TUNER

SWITHCING

47K

C223

0.1/50

C224

0.1/50

47K

+B

BIAS OSC.

R354

4.7

R237

2.7K

R238

2.7K

R240

2.2K

5.0V

1

GND

(CD: OPEN)

R239

2.2K

Q209
KTC3199 GR

0V

GND

GND

0V

Q210
KTC3199 GR

0V

0V

+B
Q805

KRC107 M

4.4V

D806
1N4148

+B

R458
1K

L-CH(CD)

R-CH(CD)

R243
560K

C241
1/50

0V(OFF:0.6V)

R241
10K

R242
10K

0V(OFF:0.6V)

C242

R244

1/50

560K

Q211,Q212
LINE AMP

(REC: 4.0V)

X801

3

GND

R456
15K

R457
1K

M601
TAPE
MOTOR

SW601
TAPE
MAIN

R830
10K

R831

3.3K

R834

3.3K

16.93MHz

0V
(TUN:7.5V)

1

R455
15K

R245

5.6K

0.8V

C243

C244

0.8V

2.0V

R246

5.6K

C845

0.047

R247

R248

2
R862

47K

330P

330P

560

560

6

0.2V

0.2V

R249
220

M

C827

0.015(

R829

3.3K

R832

3.3K
R833

3.3K

2.0V

R826

4.4V

Q804
KTA1
SWIT

+B

Q211

C247

Q212

+

220K

1

KTC3199 GR

C245

220/10

KTC3199 GR

-

QT-CD250

5

FM SIGNAL
AM SIGNAL

CD SIGNAL

PLAYBACK SIGNAL

RECORD SIGNAL

CD CONTROL PWB-A2

5

4

12
11
10

PLAY/PAUSE/

TUNING UP

CNS801

1
2
3
4

D651

1N4004

D654

1N4004

321

R847

5.6K

SW801

SW802
STOP/

TUNING

DOWN

R808
100

C810
10/16

+B

1

1

2

2

3

3

CNP201

CNS201

C651

0.022

C654

0.022

TERMINAL A PWB-A5/
TERMINAL B PWB-A6

REMOTO SENSOR

FW801

FW802

CNP801

LCD801

X-BASS

11

9

10

6

8

12

7

+B

R849

R848

18K

10K

SW803

SW804

REPEAT/

TUNER/

BAND

MEMORY

UN801

N64H380A

1

3

VOLUME DOWN

2

VOLUME UP

SWITCH PWB-A4

R227
120

R228
120

T651

POWER TRANSFORMER

LCD DISPLAY

MEMORY

14

15

13

16

17

SW805

CUE/

PRESET

UP

SW809
X-BASS

SW808

SW807

2
3
1

6
7
4
5

MAIN PWB-A1

+

-

-

+

AC INPUT

ST

KHz
MHz

19

18

20

R841

5.6K

SW806

REVIEW/

PRESET

DOWN

R857
47K

R855
18K

HPJ201
HEADPHONES

SP201
L-CH
4 OHM

SPEAKERS

SP202
R-CH
4 OHM

SO651
AC INLET
SOCKET
AC 120V,60Hz

AC/DC
SELECTOR

R824
10K

1.5V

51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

4.4V
(TUN:0V)

+B

C872

D801

1N4148

+5V(CD)

+5V(u COM)

+4.5V(BACK UP)

CD

TAPE

+B

0V

50

TMAX

12

(TUN:0V)

LPFN

3.7V

LPFO

(TUN:0V)

PVREF

(TUN:0V)

VCOF

(TUN:0V)

AVSS
SLCO

1.9V(TUN:0V)

RFI
AVDD

1.9V(TUN:0V)

RFCT

1.9V(TUN:0V)

RFZI
RFRP

1.9V(TUN:0V)

FEI

0.7V(TUN:0V)

SBAD

1.9V(TUN:0V)

TEI

1.9V(TUN:0V)

TEZI
FOO

1.9V(TUN:0V)

1.9V(TUN:0V)

TRO

1.9V(TUN:0V)

VREF
RFGC
TEBC

1.9V(TUN:0V)

FMO
DMO

1.9V(TUN:0V)

2VREF

0V

SEL
VDD2
VSS2
XVSS

2.0V(TUN:0V)

XI

(TUN:0V)

XO
XVDD

17

DVSR

GND

81

0.0047

C844

100/10

R836
270

C852

3.3/50

GND(CD)

GND(POWER)

7.5V

C232
1/50

SW201
FUNCTION
SELECTOR

SW201-A
4

3
2

NC

+B

48

49

P2VREF

PDO

1.9V
(TUN:0V)

1.9V

1.7V
GND

1.9V(TUN:0V)

4.4V(TUN:0V)

0.9V(TUN:0V)

0.5V(TUN:0V)

0V

3.7V(TUN:0V)

4.4V(TUN:0V)

GND

GND

DVRR

2.2V

RO

(TUN:0V)

82

83

C853

0.022

C850

0.0022

R838
10K

R209
1K

C229
1/50

C231
1/50

R251
22K

R252
22K

+B

1

3.7V

2.1V

C848

C249

C823

GND

47

VSS1

(TUN:0V)

DVDD

(TUN:0V)

84

22/16

R213
100

0.022

46

45

VDD1

SBOK

4.4V(TUN:0V)

5

6

11

14

4.2V(TUN:0V)

2.1V(TUN:0V)

DVRL

LO

85

86

C847

22/16

C849

0.0022

R215

STB

DATA

C230
1/50

+B

Q204
KTA1273Y

5V

5.0V

C204

0.022

100P

D202

1N4148

R203
270

C824

47/16

43

44

DOUT

SBSY

13

7

1

15

4
16

GND

DVSL

2.2V(TUN:0V)

NC

88

87

L801
220µH

R835
270

C851

3.3/50

R837
10K

1K

R216

CK

CS

10

9

0V

0V

0V

8

7

GND

R214

1K

+B

7.0V

7.0V

Q205

KTC3199 GR

R230

2.7

R870

R868

4.7K

R867

4.7K

NCNCNC

41

42

40

X-BASS

P_MUTE

STB_(VOL)

0V(TUN:5.0V)

0V(X-BASS OFF:4.9V)

IC802

SERVO/

SIGNAL

CONTROL

TC9457F2

5V

RESET

HOLD

GND

GND

NC

89

91

90

NC
R825
10K

C846

R839

47K

R217

C215

0.1(ML)

1K

R219

2.5V

2.5V

220K

11

12

IC202

2.5V

0V

6

5

R220
220K

C216

0.1(ML)
R218

R210
1K

R207
560

C207
470/10

ZD203
ZD2.4BSB

D205

C210

0.022

7.5V

C211

0.047

7.5V

D203

1N4148

4.9V

C203

0.01

4.4V
ZD201

DZ5.1BSB

4.7K

R869

4.7K

GND

GND

39

38

37

TEST4

TEST5

CE_(PLL)

0V

0V

REMO-IN

5V5V2.5V

MXI

MXO

94

93

92

R863

1.8K

1/50

R864

R860

4.7K

+B

IC202
ELECTRONIC
VOLUME
TC9260P

R221

4.7K

8.2K
C217

0.0015(ML)

15

16

13

14

2.5V

2.5V

2.5V

4 3 2

2.5V

2.5V

C218

0.0015(ML)

8.2K

C208

0.022
C205
47/16

Q206
KTA1046 Y

7.5V

8.4V

C212

0.047

8.4V

1N4148

7.0V

Q207

KTC3199 GR

R206
560

REGULATOR

Q204,Q205:5V
REGULATOR

R202

10K

R201

1.2K

C202
47/16

C870
100P

GND

GND

GND

36

35

34

TEST1

TEST2

TEST3

0.6V(TUN: 5.0V)

4.9V(TUN: 0V)

5.0V(TUN:0V)

0V(TUN: 5.0V)

2.4V

GND

5.0V

COM1

MVDD

MVSS

95

96

97

C862

0.1

1M

X802

4.19MHz

(ON:4.4V)

4.6V

VDD

VSS

1

GND

0V(ON:0.6V)

R222

4.7K

7.5V REGULATOR

9V

R205

4.7K

D204

1N4148

0V

C209

0.01

ZD202

DZ7.5BSB

SW201
FUNCTION
SELECTOR

SW201-D

16

C302

0.022

0V

GND

33

32

TEST0

CL

0V(TUN: 4.9V)

5.0V

5.0V

0V

CD-FUNC

GND

5.0V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.3V

2.3V

2.5V

COM2

COM3

99

98

2.3V

D805

1N4148

0V

C213
1/50

R253

3.9K

MUTE

R223

4.7K

0V(ON:0.6V)

R225
100K

R224

4.7K

MUTE

C214
1/50

R204

2.2K

C206

19
18
17

C825
47/16

C826
47P

R820

47K

R827
15K

C830

0.01(ML)

C828

0.0027

C829

0.0047

R828
10K

C833

0.033(ML)

R812
1K

C854

0.0068

R830
10K

R831

3.3K

R834

3.3K

L)
L)
L)

R854
100

WITCHING

1
MHz

.4V)

2

3

Q2

102 M
NER
HCING

R237

2.7K

R238

2.7K

R240

2.2K

5.0V

1

GND

(CD: OPEN)

R239

2.2K

Q209
KTC3199 GR

0V

GND

GND

0V

Q210
KTC3199 GR

+B
Q805

KRC107 M

4.4V

D806
1N4148

+B

R458
1K

L-CH(CD)

R-CH(CD)

R243
560K

C241
1/50

0V(OFF:0.6V)

R241
10K

R242
10K

0V(OFF:0.6V)

C242

R244

1/50

560K

Q211,Q212
LINE AMP

GND

R456
15K

3

R457
1K

X801

16.93MHz

0V
(TUN:7.5V)

1

R455
15K

R245

5.6K

R246

5.6K

C845

0.047

2

0.8V

C243

R247

C244

R248

0.8V

2.0V

R AMP.

+B

OSC.

99 GR
.4V)

0V

(REC: 4.0V)

M601
TAPE

0V

MOTOR

354

.7

SW601
TAPE
MAIN

R862
47K

330P

330P

+B

0.2V

560

560

0.2V

R249
220

M

R826

220K

C827

0.015(ML)

R829

3.3K

R832

3.3K
R833

3.3K

R821
1K

4.4V

Q804
KTA1266 GR
SWITCHING

+B

2.0V

Q211

KTC3199 GR

C245

C247

220/10

Q212

KTC3199 GR

-

+

R840
10

5.0V

5.0V

GND(AUDIO)

1/50

+B

C840

0.1

+B

R871

4.7K

31

DO

5.0V

(TUN:0V)

DI

NC

ADIN3

KEY2
KEY1

CD
POWER

PU IN

DOOR IN

TUNER­FUNC

MVSS1
MVDD1

NC
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10

SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2

SEG1

COM4

100

2.3V

R900

47K

R901
47K

Q203
KTA1266 GR

4.8V(ON:4.4V)

4.4V(ON:3.8V)

Q201

KTC3199 GR

0.V

C246

GND

10/16

GND

0V

D201

1N4148

+B

47/16

CD

TUN TUN
TAPE

+B

R872

4.7K

L807

30
29

GND

28
27
26
25
24
23
22

21

R876

20

10K

19
18

NC

17
16
15
14
13
12
11
10

9
8
7
6
5
4
3
2
1

R898

R899

47K

47K

SWITCHING MUTE

R250
470K

C219
1/50

0.6V

R211

47K

R231
120

C221

0.001

C225

100/10

C236

100/10

Q202

KTC3199 GR

C222

0.001

R212

47K

0V

C220
1/50

R875
10K

0.82µH

R878
10K

C235

R232

GND

0.6V

+B

R873

4.7K

0V

100/10

120

+B+B

7
8

9

4

5
6

C227

+B

R877
10K

8.2V-

8.4V

C864

5.0V-

4.6V

4700/16

0.1

R882
47K

+

-

­+

R844

22K

R843

4.7K

R846

4.7K

C865

100/10

R883
47K
R884
47K
R885
47K
R886
47K
R887
47K
R888
47K
R889
47K
R890
47K
R891
47K
R892
47K
R893
47K
R894
47K
R895
47K
R896

47K
R897
47K

D803

1N4148

11

8.6V-

10

8.0V

13
14

GND

IC201

TA8227P

POWER AMP.

8.6V-

8.0V

4.5V-

4.2V

9.0V

1

12

C201
100/16

C226

0.022

POWER PWB-A3

CNP602

CNS602

3

3

2

2

1

1

+B

R842

4.5V-

4.2V

C237
100/10

GND

3

2

22K

12
11
10

99
77
66
55

44

11
22

33
88
11
22
33
44
55
66
77
88

99

+B

10 10
11 11

+B

1
2
3
4

R856

15K

+B

C233
470/10

C239

0.1(ML)

C240

0.1(ML)

C238

100/10

C234
470/10

D652

1N4004

C652

0.022

D653

1N4004

C653

0.022

BATTERY
DC 9V ["D" size (UM/SUM-1,R20 or
HP-2) battery x 6]

BATTERY
DC 4.5V ["AA" size (UM/SUM-3,R6 or
HP-7) battery x 3 for backup memory]

• NOTES ON SCHEMATIC DIAGRAM can be found on page 11.

78 9101112

Figure 13 SCHEMATIC DIAGRAM (2/2)

– 13 –

2
3
4
5

1

7
8

9

6

12
13

14

15

11
10

16

2
3

1

CNS801

SW809
X-BASS

R808

C810

R809

UN801

R857

SW808
VOLUME
DOWN

R855

SW805
CUE/
PRESET UP

SW801

PLAY/PAUSE/

TUNIG UP

FW802

R847

R841

LCD801

R849

R848

SW802
STOP/TUNING

SW803
REPEAT/
BAND

R246

C247

R245

R248

Q212

C231

R244

R247

C244

Q211

R240

R243

C242

CNP801

C243

R236

R239

R238

C241

R234

R235

SW804
TUNER/
MEMORY

C224

R237

R233

C223

Q210

Q209

R241

C245

R74

R242

R73

R458

SW201

R856

SW806
DOWN/
REVIEW/
PRESE

FW801

SW807
VOLUME
UP

C51

X51

R62

R61

IC51

R60

R59

R58

R55

R13

R76

R51

Q2

C75

R873

R877

COR801

R878

R875

R879

R872

R871

R843

R846

R876

R882

C865

R883

R884

R885

R888

R886

R889

R887

R890

R891

R893

R892

R894

R895

R898

R899

R900

R901

X802

X801

R839

C845

C846

R842

R844

Q805

R825

C832

L801

C853

R835

D806

R862

C847

C848

Q804

C844

R836

R860

R854

C849

C850

R837

R838

C851

C852

R455

R456

D805

D803

R214

R457

R250

Q203

C207

R253

ZD203

C220

R216

R215

C214

Q202

R212

R225

R224

C235

C246

R223

Q201

R231

R207

IC202

C215

R211

C219

R219

C217

R217

R209

C213

R251

C208

R210

C229

R221

C205

R213

C232

C230

R252

R249

CNP201

R125

C120

C123

R124

R119

C121

D102

R123

R117

C117

IC101

C105

R105

D101

R115

C115

R113

C113

R109

C109

C111

R121

R104

R101

R107

C107

R103

CNP101

C351

L301

R351

C354

C108

R102

R108

R352

R116

C106

R106

R354

Q351

R353

C353

C352

C112

C110

R110

C114

R114

C116

R126

R118

C118

R122

C119

R120

C122

C233

C234

CNP602

C239

R230

C226

C240

C201

D201

C237

C238

IC201

C225

R232

C236

C221

C222

C210

C302

C227

C212

D801

C837

R812

C854

C825

C821

C822

C813

R803

C836

R834

C814

R833

C818

R832

R831

R807

R830

C819

R829

C829

C863

C816

C833

R828

C841

R805

C804

R806

C820

C801

C828

R804

C815

C802

C830

R801

Q801

C817

R826

R824

C827

R827

C826

R820

C824

C838

C839

C835

C834

C842

C843

L803

R852

R868

R867

Q806

R870

R845

R866

D802

R869

IC803

Q803

R851

D804

BI803

R850

L807

TC1

R1

C27

C10

R8

R7

C9

C29

VD3

C12

C11

R2

L1

R6

R54

C8

C61

C6

C54

VD2

L2

R5

C7

R4

L51

C56

C53

R12

IC1

R53

C60

C23

C21

C59

R52

C55

C20

C52

C22

C26

C24

R15

R18

Q1

R16

R17

C19

R71

C73

C74

R72

C72

C71

C16

C25

CF4

CF1

C14

CF3

R10

T3

C13

D1

F1

C3

VD1

C2

R3

C1

C856

R865

Q802

C806

COR1

C807

R853

BI801

R802

BI802

R811

R204

D204

D205

C211

R202

Q204

R201

D203

D202

C204

R203

R205

Q206

ZD202

ZD201

C209

Q207

C206

R206

Q205

C203

C202

C249

R228

R227

R254

C216

R222

R218

C218

R220

R861

C15

R840

2
3

4
5

1

6

7

8

9

12

13

14

11
10

1 2 3

234

51 789

6

121110

1 2 3 4

ABCD

EFGH

E
C
B

E
C
B

E
C
B

B
C
E

E
C
B

B
C
E

B
C
E

B
C
E

B C E

B C E

B C E

B C E

E C B

E C B

E C B

4
3
2
1

BC

AD

3
2
1

80

81

1

5

10

15

20

25

35

40

45

55

60

65

70

75

85

90

95

51

50

30

31

8

1

15

10

5

25

30

1

20

16

E
C
B

1
2
3

3
2
1

B
C
E

11

12

10

5

20
22

1

15

1 2 3

2
3

1

3 2 1

L4

1

10

5

12

24

20

15

13

1

6

BK

BK

3
2
1

HPJ201
HEADPHONES

PLAY REC
SW102

RECORD/

PLAYBACK

1 2 3

1

5

10

15

20

1

1

11

12

1

1

11

12

BK
BK

100

C870

C864

IC802

R896

R897

C862

R863

R864

R821

C840

C872

IC801

C823

C805

C5

C32

C68

C18

R14

C58

R20

C34

R77

C33

13

12

15 10

520

24

1

5

1

1
2
3
4

C57

SPEAKERS

SP201 SP202 R-CH

L-CH

CNS201

WH

BK

RD

MAIN PWB-A1

CD CONTROL

PWB-A2

SWITCH

PWB-A4

L3

AM BAR ANTENNA

WHGYGYGYGY

GY

1
2
3
4
5

8
7
6
5
4
3
2
1

BK
WH
WH
WH
WH

WH
WH
WH
WH
WH
WH
WH

BK

CNS802

CNS801

SW810
CD LID

OPEN/CLOSE

SW201

FUNCTION

SELECTOR

TUNER

TAPE

OFF

POWER ON

CD

5

1

7

8

6

14

15

11

17

16

10

2
3

9

12

13

4

BK

BK

(245)

TO
SP202
(R-CH)

QT-CD250

A

B

C

D

E

F

G

H

• The numbers 1 to 17 are waveform numbers shown in page 16.

1

2

Figure 14 WIRING OF P.W.BOARD (1/2)

34 5

– 14 –

6

ERASE HEAD

(240-5)

TAPE

RECORD/PLAYBACK

HEAD(240-4)

(241)

QT-CD250

(241)

SW601

TAPE MAIN

(240-7)

M601

TAPE MOTOR

(240-6)

CNS101

WH

1

BK

BR

YL

BK

RD

2

RD

3

BK

4

BKRDWH

BK

BK

TERMINAL B PWB-A6

BATTERYS

DC4.5V ["AA" SIZE(UM/SUM-3,

R6 or HP7)battery x 3]

(241)

TERMINAL A PWB-A5

(230)

BATTERYS
DC9 V [ "D" size(UM/SUM-1,
R20 or HP2) battery x 6 ]

(229)

C651

C652

D652
D654
D651

D653

C654

C653

YL
YL

RD

BK
OR
OR
OR

OR

1
2

3

CNS602

T651

POWER

TRANSFORMER

RD

RD

SO651

AC INLET

SOCKET

AC 120V,

60Hz

POWER PWB-A3

OR

OR

PICK UP UNIT

CD MOTOR PWB-B

+

M701

SW702
PICKUP IN

COLOR TABLE

BR

BROWN

RD(R)

OR

ORANGE

YL

YELLOW

GR

GREEN
BL
VL

VIOLET

GY

GRAY

WH(W)

WHITE

BK

BLACK

PK

SLED MOTOR

RED

BLUE

PINK

M702
SPENDLE MOTOR

+

-

54321

78 654321

CNS803

WH

1

GY

2

GY

3

GY

4

GY

5

GY

6

(233)

CNP803

1
2

3
4
5
6

-

F3895AF

FM ROD ANTENNA(237)

78 9101112

Figure 15 WIRING OF P.W.BOARD (2/2)

– 15 –

QT-CD250

NO DISC FOCUS SEARCH STOP PLAY

WAVEFORMS OF CD CIRCUIT

1

IC802 66pin

IC803 20pin

IC803 21pin

IC802 74pin

IC802 62pin

IC802 64pin IC802 71pin

IC802 62pin

IC802 63pin

FOO

FO+ 2

2
3

FO- 3 DMO 3

FOCUS SEARCH TOC IL STOP PLAY

4

SEL 1 TEI 1

5

FEI 2 TRO 2

TEI 3 FMO 3

6

STOP PLAY CUE

5

FEI

SBAD 2 TRO 2

7

1 TMAX 1

1 TEI 1

12

IC802 50pin

13

IC802 45pin

14

IC802 72pin

6

IC802 64pin

11

IC802 67pin

15

6

IC802 64pin

11

IC802 67pin

SBOK

2

RFO 3 FMO 3

8

IC801 22pin

STOP PLAY REVIEW

5

FEI

IC802 62pin

RFGO 2 TRO 2

9

IC801 19pin IC802 67pin

RFRP 3

10

IC801 17pin

STOP PLAY TCD-782 TNO-02 PLAYBACK

TEI 1LO 1

6

IC802 64pin

TRO 2

11

IC802 67pin

SBAD 3

7

IC802 63pin

1 TEI 1

15

IC802 71pin

6

IC802 64pin

11
15

IC802 71pin

16

IC802 86pin

17

IC802 82pin

FMO

RO 2

3

– 16 –

QT-CD250

TROUBLESHOOTING (CD SECTION)

When the CD does not function

When the CD section does not operate when the objective lens of the optical pickup is dirty, this section may not operate. Clean
the objective lens, and check the playback operation. When this section does not operate even after the above step is taken,check
the following items.
Remove the cabinet and follow the troubleshooting instructions.
"Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup
lens. Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."

Turn the power off.
Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.
Do not touch the lens with the bare hand.

Dust gradually accumulates on the objective lens during use, and it may degrade performance.
To avoid this problem, use a cleaning disc designed for CD optical pickup lenses.

HOW TO USE

1. Using the brush in the cleaner cap, apply 1 or 2 drops of the cleaning fluid to the brush on the CD cleaner disc which has
the mark next to it.

2. Place the CD cleaner disc onto the CD disc tray with the brush side down, then press the play button.

3. You will hear music for about 20 seconds and the CD player will automatically stop. If it continues to turn, press the stop button.

CAUTION

The CD lens cleaner should be effective for 30 - 50 operations, however if the brushes become worn out earlier then please
replace the cleaner disc.
If the CD cleaner brushes become very wet then wipe off any excess fluid with a soft cloth.
Do not drink the cleaner fluid or allow it to come in contact with the eyes. In the event of this happening then drink and / or
rinse with clean water and seek medical advice.
The CD cleaner disc must not be used on car CD player or on computer CD ROM drives.
All rights reserved. Unauthorized duplicating, broadcasting and renting product is prohibited by law.

Cleaner Liquid

• The CD function will not work.

The CD operating keys don't work.

Yes

Check the power supply, 16.93 MHz clock, and reset terminal.

Yes

Check the pickup-in switch (SW702) position.

Yes

Check the Focus system.

Cleaning Disc
PARTS CODE:
UDSKA0004AFZZ

Figure 17

– 17 –

QT-CD250

• Laser failure.

Is +7.5V applied to the Collector of Q206 ?

Yes

Is +5V applied to the collector of Q204 and Q806 ?

Yes

Is +5V applied to the pin 75 (VDD) and pin 96 (MVDD) of
IC802 ?

Yes

Is +5V applied to the pin 1 (VCC) of IC801 ?

Yes

Is +0V applied to the pin 74 (SEL) of IC802 ?

Yes

Is approx. 1.8V applied to the collector of Q801.

Yes

Check BI801/CNS801. If it is normal, the optical pickup is
faulty.

No

No

No

No

No

No

Check the PWB pattern of Q206.

Check the PWB Patten of IC204 and Q806.

Check the PWB pattern between collector of Q806 and pin 75 of
IC802, and emiter of Q806 and Q804 and pin 96 of IC802.

Check the PWB pattern between collector of Q204 and pin 1 of
IC801.

Check the laser come on when pattern cut between pin 8 (SEL) of
IC801 and pin 74 (SEL) of IC802.

Check the peripheral parts of IC801 and Q801. If it is normal, the
optical pickup is faulty.

• Focus failure.

Does the optical pickup move up and down when the disc is
removed?

Yes

Is the following waveform ouput at the pin 62 (FEI) of IC802
when the disc is set?

Yes

pin 62
(FEI)

pin 86
(FOO)

pin 63
(SBAD)

Is the waveform shown above input at the pin 63 (SBAD) of
IC802?

Yes

IC801 is faulty.

No

No

No

Check as stated in item "FOCUS SERVO SAWTOOTH WAVE
FAILURE".

Check the periphery of IC801 and BI801/CNS801. Is it normal?

Yes

The optical pickup is faulty.

Check the pattern between pin 13 of IC801 and pin 63 of IC802.
Check the periphery of IC801 and BI801/CNS801.

– 18 –

• Focus servo sawtooth wave failure.

QT-CD250

Is sawtooh wave output to the pin 66 (FOO) of IC802 ?

Yes

1.5~2.5sec

Is +7.5V applied to the pins 1 and 30 (VCC) of IC803 ?

Yes

Is sawtooth wave obtained between pins 20 and 21 of IC803 ?

Yes

1.5~2.5sec

Is sawtooth wave obtained between pins 3 and 4 of BI801/
CNS801 ? (as shown above)

Yes

BI801/CNS801 connection failure or optical pickup failure.

No

No

No

No

IC802 is faulty.

Check the PWB pattern of IC803.

Check the PWB pattern of IC803.

Check the PWB pattern between BI801/CNS801 and IC803.

• Spindle motor clv servo failure.

Is following wave output to the pin 72 (DMO) of IC802 when
the Function is changed to "PLAY" from "STOP" ?

Yes

DMO

Is above wave obtained between pins 5 and 6 of IC803 ?

Yes

Is above wave obtained between pins 5 and 6 of BI803/
CNS803 ?

Yes

BI803/CNS803 connection failure or optical pickup failure.

No

No

No

Check the procedure in "HF ERROR".
If OK. IC802 is faulty.

Check the PWB pattern between pin 72 (DMO) of IC802 and pins
5 and 6 of IC803. If OK. IC803 is faulty.

Check the PWB pattern between BI803/CNS803 and IC803.

– 19 –

QT-CD250

• Track search failure

Does the sled motor run in FF/REW state when the CD
TEST MODE is set?

Yes

Is the following wave output to the pin 67 (TRO) of IC802
during track search in normal playback?

Yes

TRO

Is the following wave output to the pins 12 (TEO) of IC801
during track search in normal playback?

Yes

TEO

TEI

TEZI

Is the above wave output to the pins 64 (TEI) and 65 (TEZI)
of IC802 during track serch in normal playback?

Yes

Is the following wave output to the pin 60 (RFZI) and 61
(RFRP) of IC802 during track search in normal playback?

Yes

RFRP

RFZI

No

No

No

No

No

Check as stated in item "SLED MOTOR OPERATION FAILURE".

IC802 failure.

Check the PWB pattern between pin 67 (TRO) of IC802 and pin
28 of IC803.
Check the PWB pattern between pins 25 and 26 of IC803 and
Optical pickup.
If OK. Optical pickup failure.

Check the PWB pattern between pin 12 (TEO) of IC801 and pins 64
(TEI) and 65 (TEZI) of IC802. If OK. IC801 failure.

Check the PWB pattern between pin 22 (RFO) and 18 (RFIS), 17
(RFRP) of IC801 and pins 60 and 61 of IC802. If OK. IC801 failure.

Normal.

• Sled motor operation failure.

Is following sled feed signal output the pin 71 (FMO) of IC802
when FF/REW key is pressed after the CD TEST MODE is
seted?

Yes

Is following sled feed signal input the pins 12 and 13 of IC803
when FF/REW key is pressed after the CD TEST MODE is
seted?

Yes

Is sled feed signal output the pins 10 and 11 of IC803?

Yes

Is sled feed voltage applied between both terminals of sled
motor?

Yes

Check the CD mechanism (periphery of sled motor).
If the sled motor does not run when DC2.0V is applied to
both terminals of sled motor, the sled motor is faulty.

FF REW

FMO

FF REW

SL ±

No

No

No

No

IC802 is faulty.

Check the PWB pattern between pin 71 of IC802 and pins 12 and
13 of IC803.

Check the peripheral parts of IC803. If OK, IC803 is faulty.

Check the BI803/CNS803.

• Sled servo failure.

Is following sled signal output the pin 71 (FMO) of IC802
during playback?

Yes

FMO

Normal.

No

IC802 is faulty.

– 20 –

QT-CD250

FUNCTION TABLE OF IC

IC51 VHiLC72121/-1: Electronic Tuning (LC72121) (1/2)

Pin No.

1 Xtal XIN Output Crystal oscillator connection.(4.5 MHz/7.2 MHz)
2 Ground VSSX Output Ground terminal for the crystal oscillation circuit system of LC72121.
3 Chip enable CE Output High level when inputting serial data (DI) to LC72121 or sending

4 Input data DI Input Input terminal for serial data that is transferred from the controller to

5 Clock CL Output Clock that synchronizes data when inputting serial data (DI) to

6 Output data DO Output Output terminal that sends data from LC72121 to the controller. The

7* Output port BO1 Output Output dedicated terminal.

8-10 Output port BO2-BO4 Output Output dedicated terminal.

11 Input/output port IO1 Input/Output Terminal for both input and output.

12 IF counter IF IN Input Input frequency is 0.4-12 MHz.

13 Input/output port IO2 Input/Output Terminal for both input and output.

14 Ground VSSD — Ground terminal for the digital system other than VSSA and VSSX of

Port Name

Terminal

Name

Input/Output

Function

serial data (DO).

LC72121.

LC72121 or sending serial data (DO).

output data is defined by serial data DOC0-DOC2.

Output state is defined by the serial data BO1-BO4.
Data 0: Open
Data 1: L
Time base signal (8 Hz) output is possible from BO1 terminal.
(When setting serial data TBC = 1.)

Output state is defined by the serial data BO1-BO4.
Data 0: Open
Data 1: L
Time base signal (8 Hz) output is possible from BO1 terminal.
(When setting serial data TBC = 1.)

Input and output are defined by serial data IDC1 and IOC2.
Data 0: Input port
Data 1: Output port
When specified as the input port.
The input terminal state is transferred from the DO terminal to the
controller.
Input state "L": Data -> 0
Input state "H": Data -> 1
When specified as the output port.
Output state is defined by the serial data IO1 and IO2.
Data 0: Open
Data 1: L
When turning on the power or resetting, the terminal becomes the
input port.

Signal is transferred to the IF counter directly.
The result is sent from M5B of the IF counter through DO.
4 measuring times: 4, 8, 32, and 64 ms

Input and output are defined by serial data IDC1 and IOC2.
Data 0: Input port
Data 1: Output port
When specified as the input port.
The input terminal state is transferred from the DO terminal to the
controller.
Input state "L": Data -> 0
Input state "H": Data -> 1
When specified as the output port.
Output state is defined by the serial data IO1 and IO2.
Data 0: Open
Data 1: L
When turning on the power or resetting, the terminal becomes the
input port.

LC72121.

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 21 –

QT-CD250

IC51 VHiLC72121/-1: Electronic Tuning (LC72121) (2/2)

Pin No.

15 Local oscillation, Signal input AMIN Input Serial data input: AMIN is selected when DVS = 0 is set.

16 Local oscillation, Signal input FMIN Input Serial data input: FMIN is selected when DVS = 1 is set.

17 Power supply VDD — Power supply terminal for LC72121 (VDD = 2.7-3.5 V).

18 Charge pump output PD Output Charge pump output terminal for PLL.

19 L.P.F. Amplifier transistor AIN Input L.P.F. Amplifier transistor
20 L.P.F. Amplifier transistor AOUT Output L.P.F. Amplifier transistor
21 Ground VSSA — Ground terminal for the low-pass filter MOS transistor of LC72121.
22 Xtal XOUT Output Crystal oscillator connection.(4.5 MHz/7.2 MHz)

Port Name

Terminal

Name

Input/Output

Function

When serial data input SNS = 1 is set:
Input frequency is 2-40 MHz.
Signal is sent to the swallow counter directly.
Dividing number to be set is 272- 65535. The actual dividing number
is the same as the setting value.
When serial data input SNS = 0 is set.
Input frequency is 0.5-10 MHz.
Signal is transferred to the 12-bit programmable divider directly.
Dividing number to be set is 4-4095. The actual dividing number is
the same as the setting value.

Input frequency is 10-160 MHz.
Signal is transferred to the swallow counter through the built-in
prescaler (1/2).
Dividing number to be set is 272-65535. The actual dividing number
is twice as the setting value because there is a built-in prescaler(1/2).

Power on reset circuit works when POWER ON.

When the local oscillation signal frequency divided by N is higher
then the refernce frequency, "H" level is sent from the PD terminal.
When it is lower, "L" level is sent. When the frequencies are the
same, they become high impedance.

VSSx

XIN

XOUT

FMIN

AMIN

CE

DI

CL

DO

DD

V

VSSd

2
1

22

16

15

3
4
5

6
17
14

1/2

CCB

I/F

POWER

ON

RESET

REFERENCE

DIVIDER

SWALLOW COUNTER

1/16, 1/17 4bits

12bits PROGRAMMABLE

DIVIDER

DATA SHIFT REGISTER

LATCH

PHASE DETECTOR

CHARCE PUMP

UNLOCK

DETECTOR

UNIVERSAL

COUNTER

18

19

20
21

12

PD

AIN

AOUT

VSSa

IFIN

9

8

7

BO1 BO2 BO3 BO4 IO1 IO2

10

11

13

Figure 22 BLOCK DIAGRAM OF IC

– 22 –

IC1 VHiTA2104BN-1: FM /AM IF MPX. (TA2104BN)

QT-CD250

FM RF OUT

FM RF

AM RF IN

FM OSC

222324 21 20

FM

OSC

AM

MIX

FMRE

FM

MIX

2 3 4 51 7 8 96

RF GND MIX OUT

FM RF ON

AM

LOW OUT

AM OSC

AM

OSC

BUFF

BUFF

Vcc AM IF IN

OSC OUT

LEVEL

DET

AMIF

ST IND

ST

1/8

FMIF

FM IF IN GND AGC QUAD

FW

IF

BUFF

IFREQ

171819

IF

REQ

AN

DET

16

AF

BUFF

DET

AGC

MPX IN

AF

FM

10

VCC

DIYIDE

ST/MO
FM/AM

MUTE

11

R-OUT L-OUT

LPF2LPF1DET OUT

131415

DECODE

12

IC202 VHiTC9260P/-1: Electronic Volume (TC9260P)

Vss

1

OUT

2

IN

3

L-ch
VOLUME

LD1

LD2

A-GND

CS

CK

4

L-ch

5

LATCH

6

7

8

DATA DECODER, STB GENERATOR

SHIFT REGRATER (13bit)

Figure 23 BLOCK DIAGRAM OF IC

V

DD

16

R-ch

LATCH

15
14
13
12
11
10

9

OUT

IN

LD1

LD2

A-GND

STB

DATA

R-ch
VOLUME

– 23 –

QT-CD250

IC802 VHiTC9457F2-1: Servo/Signal Control (TC9457F2) (1/4)

Pin No.

1* (OT5)S1 SEG1 Output Segment signal output to the LCD panel.
2 (OT6)S2 SEG2 Output Up to 72 segments in a matrix with COM1 to COM4 can be displayed.
3 (OT7)S3 SEG3 Output All of the S1 to S18 pins can be switched for output ports by a program.
4 (OT8)S4 SEG4 Output Also, the S15 to S18 pins each can be switched for I/O ports individually.
5 (OT9)S5 SEG5 Output When set for I/O ports, these pins become Nch open-drain output.
6* (OT10)S6 SEG6 Output Furthermore, the S11 to S14 and the P8-0 to P8-3 pins can be switched for
7* (OT11)S7 SEG7 Output use as CD signal (CLCK to IPF) input/output pins by a program.
8* (OT12)S8 SEG8 Output • CLCK: Subcodes P thru W data readout clock input/output.
9* (OT13)S9 SEG9 Output Selected between input and output by a command.
10* (OT14)S10 SEG10 Output • DATA: Subcodes P thru W data output.
11*

12*

13*

14*

15 (BCK/S15) SEG15 Output • IPF : Correction flag output. When AOUT is C2 correction output, it

16 (AOUT/S16) SEG16 Output

17 (MBOV/S17) SEG17 Output

18 (IPF/S18) NC Output

19 MVDD MVDD1 Input/Output Power supply pins.
20 MVSS MVSS1 Input/Output Normally, apply a voltage of 4.5 to 5.5V to VDD.

21* (K0)P1-0 CD-FUNC Input 4-bit CMOS I/O ports.
22* (K1)P1-1 TUNER-FUNC Input These ports can be set for input or output bit for bit by a program.
23 (K2)P1-2 DOOR IN Input These pins can be pulled up to VDD or down to GND by program.
24 (K3)P1-3 PU IN Input Therefore, they can be used as key input pins. Also, when they are set for

25
26 (ADin1)P3-1 KEY 1 Input These ports can be set for input or output bit for bit by a program.
27 (ADin2)P3-2 KEY 2 Input The P3-0 to P4-0 pins serve dual purposes as analog inputs for the internal
28 (ADin3)P3-3 ADIN 3 Input 6-bit 4-channel A/D converters.
29 (BUZR/ NC Input The internal A/D converters can complete conversion in 6 instruction cycles

Port Name

(CLCK/OT15)
S11 • LRCK: Channel clock (44.1kHz) output.
(DATA/OT16)
S12 Polarity can be inverted by a command.
(SFSY/OT17)
S13 • AOUT: Audio data output.
(LRCK/OT18)
S14 It outputs a high when buffer overflows.

P8-0 outputs a high indicating that correction is impossible.

P8-1

P8-2

P8-3

(DCREF)P3-0

ADin4)P4-0 using a successive approximation method. The required pins can be set for

Terminal Name

SEG11 Output • SFSY: Playback system frame sync signal output.

SEG12 Output It outputs a low for L channel and a high for R channel.

SEG13 Output • BCK : Bit clock (1.4122MHz) output.

SEG14 Output • MBOV: Buffer memory-over signal output.

CD POWER Output 5-bit CMOS I/O ports.

Input/Output

Function

In a backup state (when the CKSTP instruction executed), the device's
current consumption is reduced to 1µA or less, allowing for the supply
voltage to be lowered to 2.0V.
The device is reset and the program starts from address 0 when a voltage
of 2.7V or more is applied to this pin when it is at 0V (power-on reset).

I/O port, a change of state in this input can be used to clear the clock stop
or wait mode.

A/D analog input bit for bit by a program. P3-0 can be set for reference
voltage input, and the internal power supply (MVDD) can be used for this
reference voltage.
The P4-0 pin serves dual purposes as a buzzer output pin.
The buzzer output can be selected from 8 frequencies, 0.625 to 3kHz.
Each selected frequency can be output in one of four modes: continuous,
single, 10Hz intermittent, and 10Hz intermittent at 1Hz interval.
Whether or not to use and how to control the A/D converter and buzzer all
can be set by a prograam.

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 24 –

IC802 VHiTC9457F2-1: Servo/Signal Control (TC9457F2) (2/4)

QT-CD250

Port Name Terminal NamePin No. Input/Output

30 (S12)P4-1 DI Input 3-bit CMOS I/O ports.
31* (SO/S11/ DO Output DI: Tuner Data Input pin.

SDA)P4-2 DO: Tuner Data Output pin.

32* (SCK/SCL) CL Output CL: Tuner/Volume Clock Output pin.

P4-3 These ports can be set for input or output bit for bit by a program.

These pins serve dual purposes as input or output pins for the serial
interface circuit (SIO).
The SIO is a 2-wire/3-wire compatible serial interface. 4 or 8 bits of serial
data, beginning with the MSB or LSB, are serially output from the SO/SDA,
pin at each clock edge on the SCK/SCL pin, and the data on S11 or S12
pin is serially input to the device.
The serial clock (SCK/SCL) allows selection between the internal (450/225/
150/75 kHz) and external sources and a selection of the active edge, rise or
fall. Moreover, since the clock and data can be output via Nch open-drain
outputs, variouts, device controls and communication between controllers
can be greatly facilitated.
When an SIO interrupt is enabled, an interrupt is generated at completion
of SIO execution and the program jumps to address 4.
All inputs to SIO contain a Schmitt trigger circuit.

33 TEST0 TEST0 Input Test mode control input pins.
34 TEST1 TEST1 Input The test mode is selected when these pins are set high and normal
35 TEST2 TEST2 Input operation is selected when they are low.
36 TEST3 TEST3 Input
37 TEST4 TEST4 Input
38 TEST5 TEST5 Input

39* (OT19)/HSO CE_(PLL) Output CE_(PLL): Tuner Chip Enable Input pin.
40* (OT20)SPCK STB_(VOL) Output STB_(VOL): Volume Storobe Input pin.
41* (OT21)SPDA P_MUTE Output P_MUTE: MUTE ON/OFF Output pin.
42* (OT22)COFS X-BASS Output X-BASS: X-BASS ON/OFF Output pin.

43* DOUT (N/C) Input/Output Digital output pin.
44* SBSY (N/C) Input/Output Subcode block sync output pin. It outputs a high at the S1 position when

subcode sync is detected.

45* SBOK (N/C) Input/Output Subcode Q data CRCC determination result output pin. It outputs a high

when CRCC check is found OK.

46 VDD VDD1 Input/Output CD unit's digital block power supply pins.
47 VSS VSS1 Input/Output Normally, apply 5V to VDD.

When not using a CD (CD off), this power supply can be turned off, with
only the controller power supply kept active, so that the contrller alone is
operating. In this case, the CD off bit must be set to 1. When this bit is set
to 1, pins 11 through 18 and pins 39 through 42 all are changed for output

ports if they have been set for CD control signal input/output pins.
48 P2VREF P2VREF Input/Output PLL block-2 VREF pin.
49 PDO PDO Input/Output This pin outputs a phase error between EFM and PLCK signals.
50 TMAX TMAX Input/Output TMAX detection result output pin.

Selected by command bit TMPS.

Longer than preset period: Outputs P2VREF.

Shorter than preset period: Low level (Vss).

Within preset period: High impedance.
51 LPFN LPFN Input/Output Inverted input of low-pass filter amp.
52 LPFO LPFO Input/Output Output of low-pass filter amp.
53 PVREF PVREF Input/Output PLL block VREF pin.
54 VCOF VCOF Input/Output VCO filter pin.
55 AVSS AVSS Input/Output Analog block ground pin.
56 SLCO SLCO Input/Output DAC output pin for data slice level generation.
57 RFI RFI Input/Output RF signal input pin.
58 AVDD AVDD Input/Output Analog block power supply pin.
59 RFCT RFCT Input/Output RFRP signal center level input pin.
60 RFZI RFZI Input/Output RFRP zero-cross input pin.
61 RFRP RFRP Input/Output RF ripple signal input pin.
62 FEI FEI Input/Output Focus error signal input pin.

Function

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 25 –

QT-CD250

IC802 VHiTC9457F2-1: Servo/Signal Control (TC9457F2) (3/4)

Port Name Terminal NamePin No. Input/Output

63 SBAD SBAD Input/Output Subbeam add signal input pin.
64 TEI TEI Input/Output Tracking error input pin.

This input is read when tracking servo is on.
65 TEZI TEZI Input/Output Tracking error zero-cross input pin.
66 FOO FOO Input/Output Focus equalizer output pin.
67 TRO TRO Input/Output Tracking equalizer output pin.
68 VREF VREF Input/Output Analog reference power supply pin.
69 RFGC RFGC Input/Output RF amplitude adjusting control signal output pin. It outputs 3-level PWM

signals. (PWM carrier = 88.2kHz)
70 TEBC TEBC Input/Output Tracking balance control signal output pin. It outputs 3-level PWM signals.

(PWM carrier = 88.2kHz)
71 FMO FMO Input/Output Focus equalizer output pin. It outputs 3-level PWM signals.

(PWM carrier = 88.2kHz)
72 DMO DMO Input/Output Disc equalizer output pin. It outputs 3-level PWM signals.

(PWM carrier = DSP block 88.2kHz, synchronized to PXO)
73 2VREF 2VREF Input/Output Analog reference power supply pin. (2 x VREF)
74 SEL SEL Input/Output APC circuit on/off signal output pin.

When laser is on, this pin goes to a high-impedance state when UHS = low

and outputs a high when UHS = high
75 VDD VDD2 Input/Output CD unit's digital block power supply pins.

76 VDD VSS2 Input/Output Normally, apply 5V to VDD.

When not using a CD (CD off), this power supply can be turned off, with

only the controller power supply kept active, so that the contrller alone is

operating. In this case, the CD off bit must be set to 1. When this bit is set

to 1, pins 11 through 18 and pins 39 through 42 all are changed for output

ports if they have been set for CD control signal input/output pins.
77 XVSS XVSS Input/Output CD's crystal oscillator power supply pins.

Normally, connect these pins to the power supply lines that are used in

common for the VDD and VSS pins.
78 XI XI Input/Output CD's crystal oscillator input/output pins.

79 XO XO Input/Output Normally, connect 16.934MHz here. This clock is used as the system clock

for the CD. After a system reset, it also is used as the system clock on the

controller side.
80 XVDD XVDD Input/Output CD's crystal oscillator input/output pins.

Normally, connect these pins to the power supply lines that are used in

common for the VDD and VSS pins.
81 DVSR DVSR Input/Output R-channel D/A converter unit ground pin.
82 RO RO Input/Output R-channel data forward output pin.
83 DVRR DVRR Input/Output R-channel reference voltage pin.
84 DVDD DVDD Input/Output D/A converter unit power supply pin.
85 DVRL DVRL Input/Output L-channel reference voltage pin.
86 LO LO Input/Output L-channel data forward output pin.
87 DVSL DVSL Input/Output L-channel D/A converter unit ground pin.
88 NC NC Input/Output NC pins. Normally, connect these pins to ground or leave them open.

89* NC/VPP NC Input/Output
90 /RST RESET Input Device's system reset signal input pin.

The device remains reset while RESET is held low and when RESET is

released back high, the CD unit becomes operational and the program

starts from address 0. Normally, a system reset is asserted when a voltage

of 2.7V or more is applied to VDD when it is at 0V (power-on reset).

Therefore, this pin must be pulled high when used for this purpose.

Function

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 26 –

IC802 VHiTC9457F2-1: Servo/Signal Control (TC9457F2) (4/4)

QT-CD250

Pin No.

91 /HOLD HOLD Input This pin is used to input a signal that requests or clears the hold mode.

92 INTR REMO-IN Input External interrupt input pin.

93* MXO MXO Input/Output Crystal oscillator pins for the controller.
94* MXI MXI Input/Output The oscillator clock is used as the timebase for the clock facility or as the

95 MVSS MVSS Input/Output Power supply pins.
96 MVDD MVDD Input/Output Normally, apply a voltage of 4.5 to 5.5V to VDD.

97 OT1 COM1 Output Common signal outputs to the LCD panel.
98 OT2 COM2 Output Up to 72 segments in a matrix with S1 to S18 can be displayed.
99 OT3 COM3 Output Three voltage levels MVDD, VEE (1/2 MVDD), and GND are output for
100 OT4 COM4 Output 83Hz period at 2ms intervals.

Port Name

Terminal Name

Input/Output

Function

Normally, use this pin for CD mode select signal input or battery detection
signal input.
There are two hold modes: clock stop mode (crystal oscillator turned off)
and a wait mode (CPU stopped). These modes are entered by executing
the CKSTP and WAIT instructions, respectively.
The clock stop mode can be requested by a programmed input: low level
detection on HOLD pin or forced execution, and can be cleared by
detecting a high on the HOLD pin or a change of state in its input signal.
When the CKSTP instruction is executed, the clock generator and the CPU
stop operating and the device is placed in a memory backup state. During
this state, the device's current consumption is reduced to 1µA or less.
At the same time, the display output and CMOS output ports are
automatically set low, and the Nch open-drain outputs are turned off.
The wait mode is executed regardles of the input state on the HOLD pin,
with the device's current consumption reduced.
This mode is cleared by a change of state in the HOLD input.

When the interrupt facility is enabled and a pulse of 1.11 to 2.22µs in
duration is applied to this pin, an interrupt is generated and the program
jumps to address 1. Input logic and the active edge (rise or fall) can be
selected for each interrupt input.
Also, the internal 8-bit time clock can be chosen for this interrupt input, in
which case it is possible to count pulses or generate an interrupt at a given
pulse count (address 3).

controller's system clock. Connect a 4.5MHz or 75kHz crystal resonator to
the MXO and MXI pins. Since these pins do not contain internal feedback
resistors, etc, an amp resistor or output resistor must be added external to
the chip.
When using the clock generated by the CD unit's crystal oscillator for
clocking the entire device operation, fix the MXI pin to the GND level.
Oscillation is stopped by executing a CKSTP instruction.
Select the crystal oscillator and control its operation by a program.

In a backup state (when the CKSTP instruction executed), the device's
current consumption is reduced to 1µA or less, allowing for the supply
voltage to be lowered to 2.0V.
The device is reset and the program starts from address 0 when a voltage
of 2.7V or more is applied to this pin when it is at 0V (power-on reset).

After a system reset and after deassertion of a clock stop instruction, the
VEE voltage is output and the DISP OFF bit is set to 0 before common
signals are output.

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 27 –

QT-CD250

— M E M O —

– 28 –

PARTS GUIDE

QT-CD250

“HOW TO ORDER REPLACEMENT PARTS”

To have your order filled promptly and correctly, please furnish the
following information.

1. MODEL NUMBER 2. REF. No.

3. PART NO. 4. DESCRIPTION

MARK: SPARE PARTS-DELIVERY SECTION

Explanation of capacitors/resistors parts codes

Capacitors

VCC ....................... Ceramic type

VCK........................ Ceramic type

VCT........................ Semiconductor type

VC • • MF ............... Cylindrical type (without lead wire)

VC • • MN............... Cylindrical type (without lead wire)

VC • • TV................ Square type (without lead wire)

VC • • TQ ............... Square type (without lead wire)

VC • • CY ............... Square type (without lead wire)

VC • • CZ ............... Square type (without lead wire)

VC • • • • • • • • • J .. The 13th character represents capacity difference.

("J" ±5%, "K" ±10%, "M" ±20%, "N" ±30%,
"C" ±0.25 pF, "D" ±0.5 pF, "Z" +80-20%.)

If there are no indications for the electrolytic capacitors, error is ±20%.

MODEL

Contact your nearest SHARP Parts Distributor to order.

For location of SHARP Parts Distributor,
Please call Toll-Free;
1-800-BE-SHARP

QT-CD250

For U.S.A. only

Resistors

VRD ....................... Carbon-film type

VRS........................ Carbon-film type

VRN ....................... Metal-film type

VR • • MF ............... Cylindrical type (without lead wire)

VR • • MN............... Cylindrical type (without lead wire)

VR • • TV................ Square type (without lead wire)

VR • • TQ ............... Square type (without lead wire)

VR • • CY ............... Square type (without lead wire)

VR • • CZ ............... Square type (without lead wire)

VR • • • • • • • • • J .. The 13th character represents error.

("J" ±5%, "F" ±1%, "D" ±0.5%.)

If there are no indications for other parts, the resistors are ±5%
carbon-film type.

NOTE:

Parts marked with “ ” are important for maintaining the safety of the set.
Be sure to replace parts with specified ones for maintaining the safety and performance of the set.

QT-CD250

PARTS CODE NO. PARTS CODE

PRICE
RANK

DESCRIPTIONNO.

INTEGRATED CIRCUITS

IC1 VHITA2104BN-1 J AQ FM/AM IF MPX.,TA2104BN
IC51 VHILC72121/-1 J AN Electronic Tuning,LC72121
IC101 VHIBA3311L/-1 J AK REC./P.B.Equalizer Amp.,

IC201 VHITA8227P/-1 J AH Power Amp.,TA8227P
IC202 VHITC9260P/-1 J AN Electronic Volume,TC9260P
IC801 VHITA2109F/-1 J AL Servo Pre Amp.,TA2109F
IC802 VHITC9457F2-1 J AZ Servo/Signal Control,TC9457F2
IC803 VHILA6541D/-1 J AW Focus/Tracking/Spin/Sled Driver,

BA3311L

LA6541D

TRANSISTORS

Q1 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q2 VSKRA102M//-1 J AC Digital,PNP,KRA102 M
Q201,202 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q203 VSKTA1266GR-1 J AB Silicon,PNP,KTA1266 GR
Q204 VSKTA1273Y/-1 J AE Silicon,PNP,KTA1273 Y
Q205 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q206 VSKTA1046Y/-1 J AC Sillicon,PNP,KTA1046 Y
Q207 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q209~212 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q351 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q801 VSKTA1266GR-1 J AB Silicon,PNP,KTA1266 GR
Q802 VSKTA1273Y/-1 J AE Silicon,PNP,KTA1273 Y
Q803 VSKRC107M//-1 J AC Digital,NPN,KRC107 M
Q804 VSKTA1266GR-1 J AB Silicon,PNP,KTA1266 GR
Q805 VSKRC107M//-1 J AC Digital,NPN,KRC107 M
Q806 VSKTA1273Y/-1 J AE Silicon,PNP,KTA1273 Y

DIODES

D1 VHD1N4148//-1 J AA Silicon,1N4148
D101,102 VHD1N4148//-1 J AA Silicon,1N4148
D201~205 VHD1N4148//-1 J AA Silicon,1N4148
D651~654 VHD1N4004//-1 J AB Silicon,1N4004
D801~806 VHD1N4148//-1 J AA Silicon,1N4148
VD1,2 VHCKV1370NT-1 J AG Variable Capacitance,KV1370NT
VD3 VHCKV1520NT-1 J AK Variable Capacitance,KV1520NT
ZD201 VHEDZ5R1BSB-1 J AC Zener,5.1V,DZ5.1BSB
ZD202 VHEDZ7R5BSB-1 J AB Zener,7.5V,DZ7.5BSB
ZD203 VHEDZ2R4BSB-1 J AB Zener,2.4V,DZ2.4BSB

FILTERS

CF1 RFILF0006SJZZ J AE FM IF
CF3 RFILA0003SJZZ J AF AM IF
CF4 RFILF0005SJZZ J AF FM Detection
F1 RFILR0001SJZZ J AD FM Band Pass Filter

TRANSFORMERS

T3 RCILI0008SJZZ J AC AM IF

! T651 RTRNP0036SJZZ J AQ Power

COILS

COR1 RCORF0005SJZZ J AB Core
COR801 RCORF0005SJZZ J AB Core
L1 RCILR0004SJZZ J AE FM RF
L2 RCILB0015SJZZ J AC FM Oscillation
L3 RCILA0011SJZZ J AC AM Bar Antenna
L4 RCILB0014SJZZ J AC AM Oscillation
L51 VP-DH101K0000 J AB 100 µH,Choke
L301 RCILB0003SJZZ J AD Bias Oscillation
L801 VP-DH221K0000 J AB 220 µH,Choke
L803 VP-DH221K0000 J AB 220 µH,Choke
L807 VP-DHR82K0000 J AE 0.82 µH,Choke

VARIABLE CAPACITOR

TC1 RTO-H1003SJZZ J AG Trimmer

VIBRATORS

X51 RCRSP0003SJZZ J AL Crystal,4.5 MHz

PRICE

RANK

X801 RCRM-0002SJZZ J AE Ceramic,16.93 MHz
X802 RCRM-0003SJZZ J AK Ceramic,4.19 MHz

DESCRIPTION

CAPACITORS

C1 VCCCPA1HH150J J AA 15 pF (CH),50V
C2 VCKYPA1HB102K J AA 0.001 µF,50V
C3 VCKZPA1HF103Z J AA 0.01 µF,50V
C5 VCKYTV1EF104Z J AA 0.1 µF,25V
C6 VCCCPA1HH220J J AA 22 pF (CH),50V
C7,8 VCKYPA1HB102K J AA 0.001 µF,50V
C9 VCKZPA1HF223Z J AA 0.022 µF,50V
C10 VCCUPA1HJ8R0D J AA 8 pF,50V
C11 VCCSPA1HL361J J AA 360 pF,50V
C12 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C13 RC-GZA474AF1H J AA 0.47 µF,50V,Electrolytic
C14 VCKZPA1HF473Z J AA 0.047 µF,50V
C15 RC-GZA227AF1A J AB 220 µF,10V,Electrolytic
C16 RC-GZA475AF1H J AB 4.7 µF,50V,Electrolytic
C18 VCKYTV1HB102K J AA 0.001 µF,50V
C19 RC-GZA225AF1H J AB 2.2 µF,50V,Electrolytic
C20 VCKYPA1HB331K J AA 330 pF,50V
C21 RC-GZA106AF1C J AB 10 µF,16V,Electrolytic
C22 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C23 RC-GZA106AF1C J AB 10 µF,16V,Electrolytic
C24 VCTYPA1CU104M J AB 0.1 µF,16V
C25 VCKZPA1HF473Z J AA 0.047 µF,50V
C26 VCTYPA1CU104M J AB 0.1 µF,16V
C27 VCKYPA1HB102K J AA 0.001 µF,50V
C29 VCKYPA1HB101K J AA 100 pF,50V
C32 VCKYTV1EF104Z J AA 0.1 µF,25V
C33,34 VCKYTV1HB221K J AA 220 pF,50V
C51 VCCCPA1HH150J J AA 15 pF (CH),50V
C52 VCCCPA1HH120J J AA 12 pF (CH),50V
C53 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C54 VCKZPA1HF223Z J AA 0.022 µF,50V
C55 RC-GZA225AF1H J AB 2.2 µF,50V,Electrolytic
C56 VCKZPA1HF223Z J AA 0.022 µF,50V
C57,58 VCKYTV1HB101K J AA 100 pF,50V
C59 VCKZPA1HF103Z J AA 0.01 µF,50V
C60 VCKYPA1HB222K J AA 0.0022 µF,50V
C61 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C68 VCKYTV1HB221K J AA 220 pF,50V
C71,72 VCQYKA1HM223K J AB 0.022 µF,50V,Mylar
C73,74 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C75 VCKYPA1HB101K J AA 100 pF,50V
C105,106 VCKYPA1HB182K J AB 0.0018µF,50V
C107,108 VCKYPA1HB821K J AA 820 pF,50V
C109,110 VCKYPA1HB271K J AA 270 pF,50V
C111,112 VCKYPA1HB331K J AA 330 pF,50V
C113,114 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C115,116 VCQYKA1HM183K J AB 0.018 µF,50V,Mylar
C117,118 RC-GZA106AF1C J AB 10 µF,16V,Electrolytic
C119 RC-GZA225AF1H J AB 2.2 µF,50V,Electrolytic
C120 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C121,122 VCKZPA1HF103Z J AA 0.01 µF,50V
C123 RC-GZA227AF1A J AB 220 µF,10V,Electrolytic
C201 RC-GZA107AF1C J AB 100 µF,16V,Electrolytic
C202 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C203 VCKZPA1HF103Z J AA 0.01 µF,50V
C204 VCKZPA1HF223Z J AA 0.022 µF,50V
C205,206 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C207 RC-GZA477AF1A J AC 470 µF,10V,Electrolytic
C208 VCKZPA1HF223Z J AA 0.022 µF,50V
C209 VCKZPA1HF103Z J AA 0.01 µF,50V
C210 VCKZPA1HF223Z J AA 0.022 µF,50V
C211,212 VCKZPA1HF473Z J AA 0.047 µF,50V
C213,214 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C215,216 VCQYKA1HM104K J AB 0.1 µF,50V,Mylar
C217,218 VCQYKA1HM152K J AB 0.0015 µF,50V,Mylar
C219,220 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C221,222 VCKYPA1HB102K J AA 0.001 µF,50V
C223,224 RC-GZA104AF1H J AB 0.1 µF,50V,Electrolytic
C225 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C226 VCKZPA1HF223Z J AA 0.022 µF,50V
C227 RC-GZW478AF1C J AF 4700 µF,16V,Electrolytic
C229~232 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C233,234 RC-GZA477AF1A J AC 470 µF,10V,Electrolytic
C235~238 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C239,240 VCQYKA1HM104K J AB 0.1 µF,50V,Mylar
C241,242 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic

– 1 –

QT-CD250

NO. PARTS CODE

C243,244 VCKYPA1HB331K J AA 330 pF,50V
C245 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C246 RC-GZA106AF1C J AB 10 µF,16V,Electrolytic
C247 RC-GZA227AF1A J AB 220 µF,10V,Electrolytic
C249 VCKYPA1HB101K J AA 100 pF,50V
C302 VCKZPA1HF223Z J AA 0.022 µF,50V
C351 VCQYKA1HM222K J AA 0.0022 µF,50V,Mylar
C352 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C353 VCQYKA1HM562K J AA 0.0056 µF,50V,Mylar
C354 VCQYKA1HM223K J AB 0.022 µF,50V,Mylar
C651~654 VCKZPA1HF223Z J AA 0.022 µF,50V
C801 VCKZPA1HF103Z J AA 0.01 µF,50V
C802 VCKZPA1HF223Z J AA 0.022 µF,50V
C804 VCCCPA1HH2R0C J AA 2 pF (CH),50V
C805 VCKYTV1EF223Z J AA 0.022 µF,25V
C806 RC-GZA337AF1A J AB 330 µF,10V,Electrolytic
C807 VCKZPA1HF473Z J AA 0.047 µF,50V
C810 RC-GZA106AF1C J AB 10 µF,16V,Electrolytic
C813 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C814 VCKZPA1HF473Z J AA 0.047 µF,50V
C815 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C816 VCKZPA1HF223Z J AA 0.022 µF,50V
C817 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C818 VCCSPA1HL560J J AA 56 pF,50V
C819,820 VCQYKA1HM104K J AB 0.1 µF,50V,Mylar
C821 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C822 VCKZPA1HF473Z J AA 0.047 µF,50V
C823 VCKYTV1EF223Z J AA 0.022 µF,25V
C824,825 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C826 VCCSPA1HL470J J AA 47 pF,50V
C827 VCQYKA1HM153K J AB 0.015 µF,50V,Mylar
C828 VCKYPA1HB272K J AA 0.0027 µF,50V
C829 VCKYPA1HB472K J AB 0.0047 µF,50V
C830 VCQYKA1HM103K J AA 0.01 µF,50V,Mylar
C832 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C833 VCQYKA1HM333K J AB 0.033 µF,50V,Mylar
C834,835 VCKYPA1HB471K J AA 470 pF,50V
C836~839 VCQYKA1HM473K J AB 0.047 µF,50V,Mylar
C840 VCKYTV1EF104Z J AA 0.1 µF,25V
C841,842 VCKZPA1HF473Z J AA 0.047 µF,50V
C843 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C844 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C845 VCKZPA1HF473Z J AA 0.047 µF,50V
C846 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C847,848 RC-GZA226AF1C J AB 22 µF,16V,Electrolytic
C849,850 VCKYPA1HB222K J AA 0.0022 µF,50V
C851,852 RC-GZA335AF1H J AB 3.3 µF,50V,Electrolytic
C853 VCKZPA1HF223Z J AA 0.022 µF,50V
C854 VCKYPA1HB682K J AB 0.0068 µF,50V
C856 VCKYPA1HB101K J AA 100 pF,50V
C862 VCKYTV1EF104Z J AA 0.1 µF,25V
C863 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C864 VCKYTV1EF104Z J AA 0.1 µF,25V
C865 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C870 VCKYTV1HB101K J AA 100 pF,50V
C872 VCKYTV1HB472K J AA 0.0047 µF,50V

PRICE
RANK

DESCRIPTION

RESISTORS

R1 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R2,3 VRD-ST2CD104J J AA 100 kohm,1/6W
R4 VRD-ST2CD100J J AA 10 ohm,1/6W
R5 VRD-ST2CD223J J AA 22 kohms,1/6W
R6 VRD-ST2CD153J J AA 15 kohms,1/6W
R7 VRD-ST2CD103J J AA 10 kohm,1/6W
R8 VRD-ST2CD224J J AA 220 kohms,1/6W
R10 VRD-ST2CD331J J AA 330 ohms,1/6W
R12 VRD-ST2CD100J J AA 10 ohm,1/6W
R13 VRD-ST2CD103J J AA 10 kohm,1/6W
R14 VRS-TV2AB222J J AA 2.2 kohms,1/10W
R15 VRD-ST2CD393J J AA 39 kohms,1/6W
R16 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R17 VRD-ST2CD473J J AA 47 kohms,1/6W
R18 VRD-ST2CD101J J AA 100 ohm,1/6W
R20 VRS-TV2AB471J J AA 470 ohms,1/10W
R51 VRD-ST2CD151J J AA 150 ohms,1/6W
R52 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R53 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R54 VRD-ST2CD103J J AA 10 kohm,1/6W
R55 VRD-ST2CD563J J AA 56 kohms,1/6W
R58~62 VRD-ST2CD102J J AA 1 kohm,1/6W

NO.

R71,72 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R73,74 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R76 VRD-ST2CD821J J AA 820 ohms,1/6W
R77 VRS-TV2AB332J J AA 3.3 kohms,1/10W
R101,102 VRD-ST2CD331J J AA 330 ohms,1/6W
R103,104 VRD-ST2CD123J J AA 12 kohms,1/6W
R105,106 VRD-ST2CD153J J AA 15 kohms,1/6W
R107,108 VRD-ST2CD102J J AA 1 kohm,1/6W
R109,110 VRD-ST2CD121J J AA 120 ohms,1/6W
R113,114 VRD-ST2CD822J J AA 8.2 kohms,1/6W
R115~118 VRD-ST2CD392J J AA 3.9 kohms,1/6W
R119,120 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R121,122 VRD-ST2CD272J J AA 2.7 kohms,1/6W
R123,124 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R125 VRD-ST2CD684J J AA 680 kohms,1/6W
R126 VRD-ST2CD101J J AA 100 ohm,1/6W
R201 VRD-ST2CD122J J AA 1.2 kohms,1/6W
R202 VRD-ST2CD103J J AA 10 kohm,1/6W
R203 VRD-ST2CD271J J AA 270 ohms,1/6W
R204 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R205 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R206,207 VRD-ST2CD561J J AA 560 ohms,1/6W
R209,210 VRD-ST2CD102J J AA 1 kohm,1/6W
R211,212 VRD-ST2CD473J J AA 47 kohms,1/6W
R213 VRD-ST2CD101J J AA 100 ohm,1/6W
R214~216 VRD-ST2CD102J J AA 1 kohm,1/6W
R217,218 VRD-ST2CD822J J AA 8.2 kohms,1/6W
R219,220 VRD-ST2CD224J J AA 220 kohms,1/6W
R221~224 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R225 VRD-ST2CD104J J AA 100 kohm,1/6W
R227,228 VRD-ST2CD121J J AA 120 ohms,1/6W
R230 VRD-ST2EE2R7J J AA 2.7 ohms,1/4W
R231,232 VRD-ST2CD121J J AA 120 ohms,1/6W
R233,234 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R235,236 VRD-ST2CD473J J AA 47 kohms,1/6W
R237,238 VRD-ST2CD272J J AA 2.7 kohms,1/6W
R239,240 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R241,242 VRD-ST2CD103J J AA 10 kohm,1/6W
R243,244 VRD-ST2CD564J J AA 560 kohms,1/6W
R245,246 VRD-ST2CD562J J AA 5.6 kohms,1/6W
R247,248 VRD-ST2CD561J J AA 560 ohms,1/6W
R249 VRD-ST2CD221J J AA 220 ohms,1/6W
R250 VRD-ST2CD474J J AA 470 kohms,1/6W
R251,252 VRD-ST2CD223J J AA 22 kohms,1/6W
R253 VRD-ST2CD392J J AA 3.9 kohms,1/6W
R351 VRD-ST2CD101J J AA 100 ohm,1/6W
R352 VRD-ST2CD151J J AA 150 ohms,1/6W
R353 VRD-ST2CD333J J AA 33 kohms,1/6W
R354 VRD-ST2CD4R7J J AA 4.7 ohms,1/6W
R455,456 VRD-ST2CD153J J AA 15 kohms,1/6W
R457,458 VRD-ST2CD102J J AA 1 kohm,1/6W
R801 VRD-ST2EE220J J AA 22 ohms,1/4W
R802 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R803 VRD-ST2CD823J J AA 82 kohms,1/6W
R804 VRD-ST2CD683J J AA 68 kohms,1/6W
R805 VRD-ST2CD393J J AA 39 kohms,1/6W
R806 VRD-ST2CD272J J AA 2.7 kohms,1/6W
R807 VRD-ST2CD102J J AA 1 kohm,1/6W
R808 VRD-ST2CD101J J AA 100 ohm,1/6W
R811 VRD-ST2CD223J J AA 22 kohms,1/6W
R812 VRD-ST2CD102J J AA 1 kohm,1/6W
R820 VRD-ST2CD473J J AA 47 kohms,1/6W
R821 VRS-TV2AB102J J AA 1 kohm,1/10W
R824,825 VRD-ST2CD103J J AA 10 kohm,1/6W
R826 VRD-ST2CD224J J AA 220 kohms,1/6W
R827 VRD-ST2CD153J J AA 15 kohms,1/6W
R828 VRD-ST2CD103J J AA 10 kohm,1/6W
R829 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R830 VRD-ST2CD103J J AA 10 kohm,1/6W
R831~834 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R835,836 VRD-ST2CD271J J AA 270 ohms,1/6W
R837,838 VRD-ST2CD103J J AA 10 kohm,1/6W
R839 VRD-ST2CD473J J AA 47 kohms,1/6W
R840 VRD-ST2EE100J J AA 10 ohm,1/4W
R841 VRD-ST2CD562J J AA 5.6 kohms,1/6W
R842 VRD-ST2CD223J J AA 22 kohms,1/6W
R843 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R844,845 VRD-ST2CD223J J AA 22 kohms,1/6W
R846 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R847 VRD-ST2CD562J J AA 5.6 kohms,1/6W
R848 VRD-ST2CD103J J AA 10 kohm,1/6W
R849 VRD-ST2CD183J J AA 18 kohms,1/6W

PRICE
RANK

DESCRIPTIONPARTS CODE

– 2 –

QT-CD250

PARTS CODE NO. PARTS CODE

R850 VRD-ST2CD152J J AA 1.5 kohms,1/6W
R851~853 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R854 VRD-ST2CD101J J AA 100 ohm,1/6W
R855 VRD-ST2CD183J J AA 18 kohms,1/6W
R856 VRD-ST2CD153J J AA 15 kohms,1/6W
R857 VRD-ST2CD473J J AA 47 kohms,1/6W
R860 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R861 VRD-ST2CD103J J AA 10 kohm,1/6W
R862 VRD-ST2CD473J J AA 47 kohms,1/6W
R863 VRS-TV2AB182J J AA 1.8 kohms,1/10W
R864 VRS-TV2AB105J J AA 1 Mohm,1/10W
R865 VRD-ST2CD473J J AA 47 kohms,1/6W
R866 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R867~873 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R875~878 VRD-ST2CD103J J AA 10 kohm,1/6W
R879 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R882~895 VRD-ST2CD473J J AA 47 kohms,1/6W
R896,897 VRS-TV2AB473J J AA 47 kohms,1/10W
R898~901 VRD-ST2CD473J J AA 47 kohms,1/6W

PRICE
RANK

DESCRIPTIONNO.

OTHER CIRCUITRY PARTS

BI801/CNS801 QCNWN0158SJZZ J AF Connector Ass’y,8/8Pin
BI802/CNS802 QCNWN0159SJZZ J AD Connector Ass’y,5/5Pin
BI803/CNS803 QCNWN0115SJZZ J AE Connector Ass’y,6/6Pin
CNP101 QCNCW001DSJZZ J AC Plug,4Pin
CNP201 QCNCW001CSJZZ J AC Plug,3Pin
CNP602 QCNCW002CSJZZ J AD Plug,3Pin
CNP801 QCNCM010DAWZZ J Plug,4Pin
CNP803 QCNCM932FAFZZ J AC Plug,6Pin
CNS101 QCNWN0010SJZZ J AG Connector Ass’y,4Pin
CNS201 QCNWN0157SJZZ J AC Connector Ass’y,3Pin
CNS602 QCNWN0165SJZZ J AC Connector Ass’y,3Pin
CNS801 QCNCW010DAWZZ J Connector Ass’y,4Pin
FW801 QCNWN0166SJZZ J AD Flat Wire,12Pin
FW802 QCNWN0167SJZZ J AD Flat Wire,11Pin
HPJ201 QJAKM0001SJZZ J AG Jack,Headphone
LCD801 RV-LX0009SJZZ J AM LCD Display
M601(240-6) 9GD192112346 J AX Motor with Pulley [Tape]
M701 RMOTV0409AFM1 J AN Motor with Gear [Sled]
M702 RMOTV0408AFM3 J AN Motor with Chassis [Spindle]

! SO651 QSOCA0001SJZZ J AE AC Inlet Socket
! SO651 QSOCA0005SJZZ J AE AC Inlet Socket

SP201,202 RSPA10001SJ4P J Speaker,Woofer
SW102 QSW-S0001SJZZ J AD Switch,Slide Type

SW201 QSW-S0008SJZZ J AG Switch,Slide Type
SW601(240-7) 9GD640101149 J Switch,Leaf Type [Tape Main]

SW702 QSW-F9001AWZZ J AE Switch,Push Type [Pickup In]
SW801 QSW-K0001SJZZ J AC Switch,Key Type

SW802 QSW-K0001SJZZ J AC Switch,Key Type
SW803 QSW-K0001SJZZ J AC Switch,Key Type [Repeat/Band]

SW804 QSW-K0001SJZZ J AC Switch,Key Type
SW805 QSW-K0001SJZZ J AC Switch,Key Type
SW806 QSW-K0001SJZZ J AC Switch,Key Type
SW807 QSW-K0001SJZZ J AC Switch,Key Type [Volume Up]

SW808 QSW-K0001SJZZ J AC Switch,Key Type [Volume Down]
SW809 QSW-K0001SJZZ J AC Switch,Key Type [X-BASS]
SW810 QSW-F0001SJZZ J AD Switch,Leaf [CD Lid]
UN801 VHLN64H380A-1 J AK Remote Sensor,N64H380A

or

[Record/Playback]
[Function Selector]

[Play/Pause/Tuning Up]
[Stop/Tuning Down]

[Tuner/Memory]
[Cue/Preset Up]
[Review/Preset Down]

CD MECHANISM PARTS

PRICE

RANK

M702 RMOTV0408AFM3 J AN Motor with Chassis [Spindle]
SW702 QSW-F9001AWZZ J AE Switch,Push Type [Pickup In]

DESCRIPTION

CABINET PARTS

201 GCABA1045SJM1 J AR Front Cabinet
202 GCABB1045SJSA J AR Top Cabinet
203 GFTAT1004SJSB J AD CD Lid
204 CHLDM1001SJ01 J AG Stabilizer Ass’y
204- 1 PMAGF0002AWZZ J AE Magnet
204- 2 LHLDM1001SJZZ J AC Holder,Stabilizer
204- 3 PSHEZ0003SJZZ J AG Sheet,Stabilizer Holder
205 GFTAB1009SJSB J AD Battery Compartment Lid,Rear
206 GFTAC0004SJSB J Cassette Holder
207 GCOVA1002SJSA J AB Cover,Remote Sensor
208 HPNLC1052SJSA J AB Panel,Control
209 HDECQ0038SJSA J AD Ring,Speaker
210 LHLDZ1028SJZZ J AC Holder,CD Control PWB
211 JBTN-0013SJSB J AB Button,Pause
212 JBTN-0014SJSB J AB Button,Stop/Eject
213 JBTN-0015SJSB J AB Button,Fast Forward
214 JBTN-0016SJSB J AB Button,Rewind
215 JBTN-0017SJSB J AB Button,Play
216 JBTN-0018SJSB J AB Button,Record
217 JHNDP1003SJSB J AG Handle
218 JKNBK0026SJSA J AB Knob,X-BASS/Volume
219 JKNBZ0043SJSA J AD Knob,Function
220 JKNBZ0044SJSA J AB Button,CD Stop
221 JKNBZ0045SJSA J AC Button,CD Play/Pause
222 CGERH0001SJ01 J AF Damper Gear Ass’y
223 LANGK0001SJFW J AC Bracket,Button
224 LANGZ0004SJZA J Bracket,Battery
225 LHLDA1001SJZZ J AC Holder,AM Bar Antenna
226 LHLDW1001SJZZ J AD Nylon Band
227 RCORF0002SJZZ J AC Core
228 LHLDZ1027SJZZ J AB Holder,LCD
229 MSPRC0004SJFN J AB Spring,Battery,­230 MSPRC0005SJFD J AB Spring,Battery,+/­231 MSPRD0002SJFD J AC Spring,CD Lid
232 MSPRD0009SJFD J AB Spring,Cassette Holder Up
233 MSPRZ0002SJFD J AB Spring,Rod Antenna
234 LHLDZ1029SJZZ J AD Holder,CD Switch PWB
235 PGUMS0001SJZZ J AB Cushion,CD Lid
236 PSLDM3003SJFW J AB Bracket,Shield
237 QANTR0003SJZZ J AL Rod Antenna
238 MSPRP0002SJFW J AC Bracket,Record
239 HDECQ0039SJSA J AD Decoration Plate,LCD Display
240 CMECB0003SJ01 J AZ Tape Mechanism Ass’y
240- 1 9GD192104309 J AR Pinch Roller Arm Ass’y
240- 2 9GD19210703 J AE Belt,REW/FF
240- 3 9GD19210938 J Belt,Main
240- 4 9GD62140116 J AT Head,Record/Playback
240- 5 9GD62071008 J AQ Head,Erase
240- 5 9GD62091010 J AM Head,Erase
240- 6(M601) 9GD192112346 J AX Motor with Pulley [Tape]
240- 7(SW601) 9GD640101149 J Switch,Leaf Type [Tape Main]
241 MSPRC0003SJFE J AF Spring,Battery,­242 PRDAR0029SJZZ J AC Heat Sink,Q206
243 PRDAR0030SJZZ J Heat Sink,IC201
244 GFTAB1010SJSA J AD Battery Compartment Lid,Bottom
245 QCNWN0222SJZZ J Lead Wire with Lug
601 XUBSD30P18000 J Screw,ø3×18mm
602 XUBSD25P10000 J AB Screw,ø2.5×10mm
603 XUPSD25P08000 J AB Screw,ø2.5×8mm
604 XUBSD30P10000 J AA Screw,ø3×10mm
605 XUBSD30P12000 J AA Screw,ø3×12mm
606 XUPSD25P08000 J AB Screw,ø2.5×8mm
607 XWHSD28-08120 J AB Washer,ø2.8×ø12×0.8mm
610 XHPSD20P03000 J AA Screw,ø2×3mm

301 NGERH0586AFZZ J AC Gear,Middle
302 NGERH0587AFZZ J AC Gear,Drive
303 MLEVP1054AFZZ J AC Rail,Guide
304 NSFTM0291AFFW J AD Shaft,Guide
305 PCUSG0613AFZZ J AC Cushion

! 306 DCTRH8003SJ01 J BC Pickup Unit Ass’y

701 XBSSD26P06000 J AA Screw,ø2.6×6mm
702 XHBSD20P05000 J AA Screw,ø2×5mm
703 XBBSD20P03000 J AA Screw,ø2×3mm
704 LX-WZ1070AFZZ J AA Washer,ø1.5×ø3.8×0.25mm
M701 RMOTV0409AFM1 J AN Motor with Gear [Sled]

PACKING PARTS (For Central America)

SPAKA0036SJZZ J AG Packing Add.,Left/Right
SPAKC0112SJZZ J Packing Case
SPAKZ0013SJZZ J AB Top Pad,Packing Case
SSAKH0001SJZZ J AC Polyethylene Bag,Unit
SSAKK0002SJZZ J AC Polyethylene Bag,

AC Power Supply Cord
TLABR1098SJZZ J Label,Bar Code,Packing Case
TLABZ0015SJZZ J AC Label,VJ No.,Packing Case

– 3 –

QT-CD250

NO. PARTS CODE

PRICE
RANK

DESCRIPTION

ACCESSORIES

! QACCU0001SJ00 J AR AC Power Supply Cord

TINSE0040SJZZ J AC Operation Manual
TLABZ SJZZ J Label,Feature
RRMCG0023SJSA J AU Remoto Control

J Battery Lid,Remoto Control

P.W.B. ASSEMBLY (Not Replacement Item)

PWB-A1~7 DCEK-0008SJ03 J — Main/CD Control/Power/Switch/

PWB-B QPWBF3895AFZZ J AC CD Motor (PWB Only)

Terminal A/Terminal B/Washer
(Combined Ass’y)

OTHER SERVICE PART

UDSKA0004AFZZ J AZ CD Pickup Lens Cleaner

– 4 –

QT-CD250

306

A

304

701

701

B

704

302

C

702

301

D

303

703x2

E

M702

F

305

M701

G

305x2

SW702

H

PWB-B

1

23456

Figure 5 CD MECHANISM EXPLODED VIEW

– 5 –

QT-CD250

215

604x4

217

214

213

212

239

PWB-A1

236

211

235

605x2

606

222

232

202

PWB-A7

Grease

237

233

Silicon

242

235

231

604

Q206

SW810

603

604

605x2

607x3

606

205

602x3

605x2

203

204

204-1

204-2

204-3

CD
MECHANISM

605x2

SO651

206

223

210

216

603x2

Silicon

Grease

243

A

240(240-1,
240-2, 240-3,
240-4, 240-5

B

C

D

240-6(M601),
240-7(SW601))

238

610

TAPE
MECHANISM

PWB-A2

603x6

LCD801

208

603x4

207

201

218
219

228

SP201

605x3

234

PWB-A4

601x2

604x4

209

220

E

221

F

G

209

244

604x7

230

245

226

227

SP202

225

PWB-A5

604x4

BELT CONNECTION

Flywheel

FF/REW Belt

Main Belt

T651

PWB-A3

229

REW/FF
Clutch

224

241x3

PWB-A6

Motor
M601

H

Note: Only the unit and consumale parts are supplied as parts supply for the Tape mechanism.

1

23456

Figure 6 CABINET EXPLODED VIEW

– 6 –

QT-CD250

PACKING OF THE SET (FOR U.S.A ONLY)

• Setting position of switches and knobs

Tape Mechanism Control STOP STATE
FUNCTION SELECTOR OFF/TAPE

Polyethylene Bag, Unit
SSAKH0001SJZZ

Operation Manual

Packing Add., Left/Right
SPAKA0036SJZZ

L

FRONT

R

Feature Label

Remote
Control

AC Power
Supply Cord

Polyethylene Bag,
AC Power Supply Cord
SSAKK0002SJZZ

Top Pad, Packing Case
SPAKZ0013SJZZ

FRONT

Packing Case
SPAKC0112SJZZ

COPYRIGHT © 2000 BY SHARP CORPORATION

ALL RIGHTS RESERVED.

No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.

FRONT

Bar Code Label
TLABR1098SJZZ

VJ No. Label
TLABZ0015SJZZ

: Not Replacement Item

SHARP CORPORATION
Communication Systems Group
Quality & Reliability Control Center
Higashihiroshima, Hiroshima 739-0192, Japan

Printed in Japan

A0003-????NS•HA•C

SC • LAG