Sharp QT-CD141, QT-CD161 User Manual

Illustration: QT-CD161

QT-CD161/141

SERVICE MANUAL

No. S5929QTCD161/

QT-CD161(S)
QT-CD141(BK)

• 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 NOTES (FOR U.S.A. ONLY)....................................................................................................... 2

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

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

REMOTE CONTROL ..........................................................................................................................................................3

DISASSEMBLY.................................................................................................................................................................. 4

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

ADJUSTMENT ................................................................................................................................................................... 6

NOTES ON SCHEMATIC DIAGRAM ................................................................................................................................ 9

TYPES OF TRANSISTOR ................................................................................................................................................. 9

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 10

BLOCK DIAGRAM ........................................................................................................................................................... 11

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 14

TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 23

FUNCTION TABLE OF IC................................................................................................................................................ 27

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

DIFFERENCE BETWEEN QT-CD161 AND QT-CD141

SECTION

REMOTE CONTROL
HEADPHONE SOCKET

QT-CD161

QT-CD141

SHARP CORPORATION

– 1 –

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

QT-CD161/141

g

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 12 V [ "D" size (UM/SUM-1,
R20 or HP-2) battery × 8]
DC 3 V [ "AA" size (UM/SUM-3,
R6 or HP-7) battery × 2 for tuner
memory]

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

Speakers: 4" (10 cm) full-range speaker x 2
Output
terminals:
Dimensions: Width; 18-15/16" (480 mm)

Weight: 7.1 lbs. (3.2 kg) without batteries

● Radio
Frequency

e:

ran

Stand-by; 1.5 W
Power on; 20 W

into 8 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.)

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

Height; 6-1/16" (153 mm)
Depth; 10" (254 mm)

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 12 V electric governor
Bias system: AC bias
Erase
system: Magnet erase

● 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: 4-times oversampling digital filter
D/A
converter: 1-bit D/A converter
Wow and
flutter:

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

Unmeasurable
(less than 0.001% W. peak)

– 2 –

NAMES OF PARTS

QT-CD161/141

1. Cassette Compartment

2. CD Compartment

3. (TAPE) Record Button:

4. (TAPE) Play Button:

5. (TAPE) Rewind Button:

6. (TAPE) Fast Forward Button:

7. (TAPE) Stop/Eject Button:

8. (TAPE) Pause Button:

9. Band/Pause:

10. Tuner Memory

11. Volume

12. Power, On/Function Switch

13. Extra Bass Button: X-BASS

14. (CD) Track Down: /Review Button:

15. (CD) Track Up: /Cue Button:

16. (TUNER)Tuning: /(CD) Stop Button:

17. (TUNER) Tuning: /(CD) Play/Repeat Button:

18. FM Telescopic Rod Aerial

19. Headphone Socket (QT-CD161 Only)

20. Battery Compartment

21. AC Power Input Socket

/

10

16

12

334455678

1

2

9

15

171113

14

1918

Remote control (QT-CD161 ONLY)

1. (TUNER) Tuning: /(CD) Play/Repeat Button:

2. (CD) Track Down: /Review Button:

3. Band/Pause:

4. (CD) Track Up: /Cue Button:

5. (TUNER)Tuning: /(CD) Stop Button:

REMOTE CONTROL (QT-CD161 ONLY)

Notes concerning use:

● 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.

20 21

1

2

Sensor Remote

15

15

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

0,2 m - 6 m

– 3 –

QT-CD161/141

(B2)x2
ø3x10mm

(A2)x1

(B3)x1

Front Cabinet

Top Cabinet

(B1)x1

Main PWB

(B2)x1

ø3x10mm

DISASSEMBLY

Caution on Disassembly

Follow the below-mentioned notes when disassembling the
unit and reassembling it, to keep it safe and ensure excellent
performance:

1. Take cassette tape and compact disc out of the unit.

2. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit.

3. Take off nylon bands or wire holders where they need to
be removed when disassembling the unit. After servicing
the unit, be sure to rearrange the leads where they were
before disassembling.

4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.

STEP REMOVAL PROCEDURE FIGURE

1 Rear Cabinet 1. Screw ................. (A1) x10 4-1

2. Socket .................. (A2) x1 4-2

2 Top Cabinet 1. Knob..................... (B1) x1 4-2

(with CD Mechanism/

Tape Mechanism/ 3. Socket .................. (B3) x1

Main PWB)

3 Main PWB/ 1. Screw ................... (C1) x9 4-3,5-1

Switch PWB/ 2. Socket .................. (C2) x4 4-3,5-1

Headphones PWB 3. Soldering .............. (C3) x3 4-3

(QT-CD161 Only)

4 Tape Mechanism 1. Screw ................... (E1) x4 5-1

5 CD Mechanism 1. Screw ................... (F1) x3 5-1

6 Terminal PWB 1. Screw ...................(G1) x5 5-2

7 Battery PWB 1. Hook.....................(H1) x2 5-3

2. Screw ................... (B2) x3

2. Hook.....................(G2) x1

Figure 4-2

(A1)x6
ø3x20mm

(A1)x1
ø3x12mm

(A1)x3
ø3x12mm

Figure 4-1

Front Cabinet

Rear Cabinet

(C1)x6
ø3x10mm

(C1)x2
ø3x10mm

Headphones
PWB

(C3)x3

(C2)x1

Switch
PWB

Main PWB

(C2)x2

Top Cabinet

Figure 4-3

– 4 –

(E1)x4

Driver

Push

(G2)x1

ø3x10mm

QT-CD161/141

(F1)x3
ø2.5x10mm

Tape
Mechanism

Top Cabinet

Figure 5-1

CD Mechanism

(C2)x1

(C1)x1
ø2.5x8mm

Rear Cabinet

Pull

(H1)x1

(G1)x2
ø3x10mm

(G1)x1
ø3x10mm

Terminal PWB

(G1)x2
ø3x10mm

Figure 5-2

Rear Cabinet

(H1)x1

REMOVING AND REINSTALLING THE MAIN PARTS

CD MECHANISM SECTION

Perform steps 1, 2, 3 and 5 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)
x1 pcs.

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

3. Remove the pickup.

Shaft
(A2) x1

Pickup

Battery PWB

Figure 5-3

Pull

(A1) x2
ø2.6 x6mm

CD
Mechanism

Stop
Washer
(A3) x1

Gear
(A4) x1

Figure 5-4

– 5 –

QT-CD161/141

Pin 13 of IC2 Pin 21 of IC2

D

G

S

10 kohm

TO FREQUENCY
COUNTER

FET : 2SK19 or 2SK54

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

• Tape Speed

Test

Tape

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

Adjusting

Point

TAPE SECTION

Position of each switch or control

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

• Bias Oscillation

Adjustment Point

L301 82 kHz ± 6 kHz Pin 2 of CNP201

• Playback Amplifier Sensitivity Check

Test Tape

MTT-118 1.8 V ± 3 dB Speaker Terminal

AM TRACKING

fL fH

L3

AM BAR

ANTENNA

FM RF

Specified Value

Specified Value

Specified Value

(CNP201 Load resistance: 8 ohms)

Specified

Specified Value

– 6 kHz

Specified Value

TC1

TP1

R7

FM IF

L1

T1

1

IC1

Value

Instrument Connection

(Load resistance: 8 ohms)

FM ROD ANTENNA

AM BAND

COVERAGE

L4

FM DET.

L2

FM BAND

COVERAGE

Instrument

Connection

Teaminal
(CNP201 Load
resistance: 8 ohms)

Instrument

Connection

R26

T2

19

17

21

IC2

1

T3

AM IF

Figure 6-2 ADJUSTMENT POINTS

ADJUSTMENT

TUNER SECTION

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

• FM RF

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

Test Stage

Band — 87.5 MHz (fL): L2 *1
Coverage 2.0 ± 0.1 V

RF 90.0 MHz 90.0 MHz L1 *2

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

• Detection

Signal generator: 10.7 MHz, FM sweep generator

IF 10.7 MHz 98.00 MHz T1(Turn Input: Pin 1 of

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage

IF 450 kHz 1,720 kHz T3 *1

Band — 530 kHz (fL): L4 *3

Coverage
Tracking 600 kHz 600 kHz (fL): L3 *2

*1. Input: Antenna, Output: Pin19 of IC2
*2. Input: Antenna, Output: Speaker Terminal
*3. Input: Input is not connected, Output: TP1

• VCO Frequency

VR1 76 kHz ± 200 Hz Pin 13, pin 21 and

Note:

After preparing the test circuit shown in Fig. 6-1, connect the
Pin 13, Pin 21 and ground of the IC2 with the test circuit, and
measure the value. At this time, apply a standard unmodulated

MAIN PWB

TP2

VR1

13

VCO

signal input and adjust the VCO.

– 6 –

Frequency

(10~30 dB)

Test

Stage

Adjusting Point

Frequency

Frequency Frequency

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

Frequency

Display

Frequency

Display

Display

Specified

Value

Setting/

Adjusting

Parts

Setting/

Adjusting

Parts

the core of IC1
T1 fully Output: TP2
counter­clockwise.

Setting/

Adjusting

Parts

1.4 ± 0.05 V

ground of IC2

Figure 6-1 VCO FREQUENCY TEST CIRCUIT

Instrument

Connection

Instrument

Connection

Instrument

Connection

Instrument

Connection

QT-CD161/141

TURNING ON THE TEST MODE

The types of test mode for this microcomputer and specific test mode turning-on procedure are as follows. Only the unit key is used.
The remote control key is not valid. The power must be turned on while two keys are held down.
(1) CD test mode function

The power is turned while the (PRESET ) and STOP (TUNING ) keys are held down.

(2) Tuner test mode function

The power is turned on while the (PRESET ) and PAUSE (BAND) keys are held down.

(3) LCD test mode function

The power is turned on while the (PRESET ) and MEMORY keys are held down.

CD TEST MODE

When the CD test mode is turned on, the CD pickup is moved to the innermost periphery, and the following indication appears.
The operation of CD test mode is as follows.

Indication

(1) The CD pickup is moved with the unit UP key and DOWN key.

UP key: The pickup is slid to the outer periphery.
DOWN key: The pickup is slid to the inner periphery. However, when it reaches the innermost periphery, it does not move further
inward.

(2) When the PLAY key is pressed in stop state, the laser diode turns on if CD lid is closed.
Indication

(3) When the PLAY key is pressed in laser ON state, playback is started from the current position of pickup.
Indication

The current playback track No. and time are indicated.

(4) When the STOP key is pressed during playback, the laser goes out and playback is stopped, and the process returns to step

(1). (The pickup position does not change.)

(5) When the MEMORY key is pressed during playback, tracking servo ON/OFF is performed. (Even if the playback is stopped

in servo OFF state, the servo is turned on when the playback is restored.)

Indication

Others

While the CD lid is open (LID-SW = "H"), the test mode is turned on but the operations of step (2) and subsequent steps are not
performed. The operation of step (1) is performed.

The current pickup position and time are indicated. (When the
pickup is moved with the UP/DOWN key, the time at that point
is indicated.)

Contents of error display

Error display

Er 01
Er 02

when TOC information cannot be read normally.
When a PU-IN SW detection error occurs.

Contents of an error

TUNER TEST MODE

The tuner test mode is intended to store the measurement frequency for adjustment and inspection in the preset memory CH
without frequency adjustment in the case of tuner adjustment in the production line.
When the power is turned on while the PRESET (DOWN) key and BAND (PAUSE) key are held down together, the frequency
for adjustment measurement of destination (specified according to AREA terminal) is preset-stored in the preset memory CH. (The
frequency to be preset-stored for specific destination is as shown in the next page.)

– 7 –

QT-CD161/141

In the tuner test mode the band is FM, and the mode is FM STEREO in case of start-up.
As with the ordinary mode, when the PRESET key is pressed for 1ch of preset memory CH, maximum CH is set. When the

PRESET key is pressed for maximum CH of preset memory CH, 1ch is set.
The BAND key is valid. As in the ordinary mode, the band/FM MONO/STEREO mode can be switched.
To exit from the tuner test mode, turn off the power to the microcomputer.
Indication

Preset frequencies for various destinations (random preset memory)

BAND (CH) U.S.A. EUROPE GENERAL 1 GENERAL 2

1 FM 87.5M FM 87.50M FM 87.50M FM 87.5M
2 FM 108.0M FM 108.00M FM 108.00M FM 108.0M
3 FM 98.0M FM 98.00M FM 98.00M FM 98.0M
4 FM 90.0M FM 90.00M FM 90.00M FM 90.0M
5 FM 106.0M FM 106.00M FM 106.00M FM 106.0M
6 AM 530K AM 522K AM 531K AM530K
7 AM1720K AM1620K AM1602K AM1620K
8 AM 990K AM 990K AM 990K AM 990K
9 AM600K AM 603K AM 603K AM 600K
10 AM 1400K AM 1404K AM 1404K AM 1404K
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

Note:
The unit shown in table is Hz. K is x1000. M is x1,000,000.
The slash indicates that data are not stored in the memory.
FM is stereo mode.

The indication is the same as that of ordinary operation. However,
when the test mode is turned on, the indication shown left lights
for one second.

LCD TEST MODE

When the LCD test mode is turned on, all the segments of LCD light.
Indication

– 8 –

NOTES ON SCHEMATIC DIAGRAM

QT-CD161/141

• 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 DESCRIPTION POSITION

SW102 RECORD/PLAYBACK PLAYBACK
SW201 FUNCTION/POWER TAPE—TUNER— CD/

OFF—ON
SW202 X-BASS OFF—ON
SW501 TUNER UP OFF—ON
SW502 TUNER DOWN OFF—ON
SW503 BAND OFF—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.

REF. NO DESCRIPTION POSITION

SW504 MEMORY OFF—ON
SW505 PRESET DOWN OFF—ON
SW506 PRESET UP OFF—ON
SW507 CD LID OPEN/CLOSE OFF—ON
SW601 TAPE MAIN OFF—ON
SW702 PICKUP IN OFF—ON

FRONT

VIEW

E C B
(S)(G)(D)
(1) (2) (3)

KTA1266 GR
KTA1273 Y
KTC3194 Y
KTC3199 GR
KTC8050 D
KRA102 M
KRA109 M
KRC104 M
KRC107 M

Figure 9 TYPES OF TRANSISTOR

– 9 –

QT-CD161/141

PLAY

20ms

1.00 V
SPO

NORMAL DISC
TN0=01

20ms

2.00 V
CLV+

PLAY

TCD-712 (140mm)
TN0=01

50ms

1.00 V
SPO

50ms

2.00 V
CLV+

WAVEFORMS OF CD CIRCUIT

1

1

2

3

4
5

3

5ms

0.50 V
IC801 20 F.E

5ms

5.0 V
IC801 54 DRF

0.5ms

1.00 V
HF

0.5ms

5.0 V
HFL

0.5ms

5.0 V
TES

0.5ms

1.00 V
H.F

STOP PLAY

FOCUS SERCH

3
1

CUE

1
2

3

REVIEW

6

7

8

9

6

7

8

9

10

11

50ms

10.0 V
JP+

50ms

10.0 V
JP-

50ms

0.50 V
JP

50ms

1.00 V
TE

0.5ms

10.0 V
JP+

0.5ms

10.0 V
JP-

0.5ms

0.50 V
JP

0.5ms

1.00 V
TE

REVIEW

0.5ms

4

5

5.0 V
HFL

0.5ms

5.0 V
TES

1
2

3

10

11

50ms

6

7

8

9

6

7

8

9

10.0 V
JP+

50ms

10.0 V
JP-

50ms

0.50 V
JP

50ms

1.00 V
TE

0.5ms

10.0 V
JP+

0.5ms

10.0 V
JP-

0.5ms

0.50 V
JP

0.5ms

1.00 V
TE

CUE

12

12

5s
100mV
SLD

0.5s
100mV
SLD

PLAY

TCD-712

1

1

– 10 –

TO

MAIN

SECTION

+7.4V

(CD)

QT-CD161/141

+5V

LASER

DRIVER

+5V

Q801

XL801

16.93MHz

23

6

45

62

64

51 37

62

634364

XVDD
VDD

VVDD

LC78622E

SERVO/SIGNAL

FIN1

E

4

CONTROL

EFMO

104412

9

F

XIN

XOUT

LDD
VCC1

FIN2

123

LCHO

IC802

CLV+

CLV–

13

43

44

SLI

14

V/P

15

SLC

EFMIN

IC801

LA9240M

SERVO AMP.

46

HFL

16

CV+

3955385433

TES

TOFF

18 19

17

~

3240

JP–

SL–

31

30

32

11

8
4
2

53

56
57
58

RES. CQCK. COIN

SQOUT. RWC. WRQ

61

1

JP–

JP+

TGL

20

54

DRF

53

CE

52

DAT

51

CL

50

CLK

49

DEF

29

SLD

SLEQ

28
27

SPO

FD

16

TO

SL+

15

CL, DAT, SELIAL CONTROL

CONSTANT

VOLTAGE

Q804

REGULATOR

+5V

+7.4V

30

1

978

IC803

LA6541

FOCUS/TRACKING

3

/SPIN/SLIDE

13
29

28
18

25

DRIVER

20

26

5

21

6

22

24

102511

PICKUP UNIT

FOCUS COIL

TRACKING COIL

Figure 11 BLOCK DIAGRAM (1/3)

– 11 –

TO MAIN

SECTION

M

M701
SPIN

MOTOR

M

M702

SLIDE

MOTOR

TO MAIN

SECTION

QT-CD161/141

SPEAKERS

SP501

L-CH

SP502

R-CH

SO601

AC INPUT

AC 120V

60Hz

IC202

LA4597

POWER AMP.

VOLUME

X-BASS

12

L

2

VR201

A,B

SW202

A,B

DC12V

10

8

11

5

R

6

Q201
Q202
Q251

+B

AM / FM

SELECT

FUNCTION

+B2

SW201-D
POWER /

FUNCTION

STANBY

VOLTAGE

REGULATOR

+B1

SW201-C

3

IC203

KIA7808P

1

POWER/

2

FM +B

T601

POWER

TRANSFORMER

BATTERY

TUNER

+B

RECTIFIER

D651~D654

SW601

MAIN

["D" SIZE (UM/SUM-1,

R20 or HP-2)BATTERYx8]

BACK UP

+B

DC3V

BATTERY

["AA" SIZE (UM/SUM-3,

FOR TUNER MEMORY]

R6 or HP-7)BATTERYx2

FROM TUNER

SECTION

IC2-9,10PIN

RADIO

POWER/
FUNCTION
SW201-A,B

CD/DISPLAY

SECTION

CD

FROM

TAPE

REC

REC / PB

SW102

A,F

REC

P. B

12

6

1
L

R

L

R

9

5

REC

P.B

8

AMP.

IC101

EQULIZER

REC / PB

SW102

C,E

BA331IL

P.B

L-CH

REC

SW102

REC / PB

B.D

P.B

REC / PB

HEAD

Figure 12 BLOCK DIAGRAM (2/3)

– 12 –

R-CH

MOTOR

+B1

Q351

L301

SW102-H

REC / PB

ERASE

HEAD

M601

TAPE

SW201-G

REC / PB

BIAS

OSC.

LCD501

LCD DISPLAY

QT-CD161/141

TUNER
+B

Q501
Q502

IC502

RESET

21
20
19
18
17
16
15
14

1213
11
10

9
8
7
6
5
4 3 2 1

RESET

79

76

,

72

~~

56

13
20

19

13

X501

27

24

32

23

31

IC501

CD/TUNER CONTROL

MICROCOMPUTER

6

17

16

22

7

10

23

MONO/ST

12

13
11
14

6
5
4

3

24

RX501

SW702

PICKUP IN

TO CD

SECTION

+B

FM DET

TO MAIN
SECTION

VR1

VCO

T2

AM OSC OUT

15

9

10

16

13

18

20

22

24

MO/ST
L-CH OUT

R-CH OUT

MPX IN

MPX VCO

DET OUT

FM DET

AM RF IN

AM OSC

SW504
MEMORY
SW503
BAND
SW502
TUNER DOWN
SW501
TUNER UP
SW505
PRESET DOWN
SW506
PRESET UP

+B

TUNER

STEREO

GND

AM IF IN

AM MIX OUT

FM IF IN

SW601

MAIN

IC2

LA1805

FM /AM/IF APX.

+B

21

8

7

6
5

AM IF IN

AM IF

AM MIX OUT

2

1

CF2

AUDIO
+12V

VOLTAGE

REGULATOR

ZD1

T3

+5V

CF1

A-GND

VT

Q3
Q4

VT CONTROL

IC3

TC9216P

PLL

D GND

VT

TUNER +B

Q5
Q6

FM+B

FM RIPPLE

FILTER

IF IN

10

AM IN

11

FM IN

12

PERIDO

CLOCK

DOUT

14

VSS

13

X OUT

1

4.5MHz

FM+B

6

OF1

5

4

DATA

3

2

X IN

X1

9

L3

AM ANT.

TC1

VD3-1

RF AMP.

Q1

VD3-2

L4

AM OSC.

FM ROD

ANTENA

Figure 13 BLOCK DIAGRAM (3/3)

– 13 –

VD2

FM OSC

L2

VT

VD1

FM RF

L1

T1

FM IF

8

7

IC1

6
5

4

3

1

F1

B.P.F

TA7358AP

FM FRONT END

QT-CD161/141

5

0

C846

2

B

MAIN PWB-A1(1/4)

A

B

C

0.1/50

D

E

C811

0.1

CD SIGNAL

C803

0.1/50

C804

0.001

R804

2.2K

R805

C807

6.8K
R806

100

R807

1K

R809

27K

R811

3.3K

R839

GND

22K

R840

22K

R802
100K

C805

0.033
C806

0.033

C809

0.047
R808

12K

R828
1K

R829

1K

C808

0.068

R803

15K

C810
180P

R813

33K

15K

R812

VREF

R842

22

1
2

3
4
5

6

7

8
9

10
11
12

13
14

15
16

C813

E
F
TB

TE–
TE
TESI
SCI

TH
TA

TD–

TD
JP

17

0.1

R815

64

FD–

47K

18

LASER

DRIVE

Q801

KTA1266 GR

C849

0.022

C848

1/50

C840 0.33/50

61

63 62

BH1

LDS

LDD

VCC1

FIN2

1
2

FIN1

LA9241M

SERVO AMP.

15

TO

16

FD

FE–

FE

FA–

FA

19

20

22

21

C812

330P

R817

R814

10K

82K

R816

C814

1.5K

0.01

C838 0.01

C839 0.1

59

60

LF2

PH1

IC801

A GND

SP

NC

24

23

C815

0.0047

R819

39K

C835 0.1/50

C837 10/16

56

57

58

VR

REFI

SP–

SPG

26

25

C816

0.001

R820

10K

R821

R822

6.8K

1.2K

R823

55

VCC2

34
33

27

56K

C817

0.47/50

FSS

TGL

JP+

SPD

28

R824

R830

54 53

DRF

SLEQ

10K

1K

C818

48
47

52

CE

1/50

DAT

NC
TBC

29

C819

R825

51

SLD

47/16

1.2K

R831

50

CL

RFS–

RFSM

TOFF

30

C820

0.0033

1K

49

CLK

FSC

GND

SLI

SLC

CV+
CV–

SLOF

HFL

TES

SL+

SL–

31

R826

DEF

JP–

32

R827
220K

220K

R871

4.7K

48

47
46

45

44

43
42

C830

41
40

39
38

37
36

35

34
33

2.0P

C845

4.7/50

C834

0.033

C833

0.001

R833

5.6K
R832

56K

C850

0.1

R836
47K

R835

C822
220P

R810

82K

C832
27P

470

C821

1/50

R838

33K

R837
47K

C831

0.0027

D802

1N4148

R834
1K

C851

0.022

100K

R849

R8

68

R8

1.

PIN

VOLTAGE

NO.

0V

1

F

G

0V

2

1.5V

3

0V

4

2V

5

5V

6

0.3V

7

0V

8

2.5V

9

2.5V

10

0V

11

0V

12

0V

13

5V

14

0V

15

4.8V

16

5V

17

5V

18

0V

19

0V

20

2.5V

21
22

0V

PIN
NO.

IC802

23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

VOLTAGE

5V
0V
0V
0V
0V
0V
0V
5V

2.5V
0V
0V
0V
5V

4.7V
2V
0V
0V
2V

4.7V
0V
5V

2.3V

PIN
NO.

45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

VOLTAGE

2V
0V

0.1V

2.2V
0V

2.5V
0V

2.5V
0V
0V
0V

4.1V

4.1V
5V
0V

2.7V

2.4V
0V
0V
0V

P16 1-F

PU IN

WRQ

SQOUT

DRF

SL–
SL+

P19 8-H

RWC

CO IN

CQCK

RES

D-GND

+B 7.4V

POWER GND

L-CH

AUDIO GND

R-CH

2
3
4
5
6
7
8
9

10
11

1

+B

45

13
14
15
16

H

• The numbers 1 to 12 are waveform numbers shown in page 10.

1

2

34 5

Figure 14 SCHEMATIC DIAGRAM (1/6)

– 14 –

C887

0.022

6

+

QT-CD161/141

R858

680

R856

1.2K

C841

0.047

C842

0.047
R857

27K

C847

0.01

1
2

3
4

5

6

7
8
9

10
11
12

13
14
15
16

4

6

TEST1

PDO
VVss

ISET

VVDD
FR
Vss

EMFO

EMFIN

TEST2

CLV+

CLV–

V/P

TOFF

17

R860
1K

5 9

8

0

1

2

6

6 3 6

CS

6

4.2M

TEST5

1
2

16M

DEFI
TAI

5

RES

TST11

IC802

LA78623D

SERVO/SIGNAL

CONTROL

15

HFL

16

TES

FSEQ

PCK

JP-

JP+

18

TGL

19

VDD

20

23

22

21

5

7 6 5

24

COIN

CQCK

CONT2

CONT1

25

5

5

SQOUT

48

47

NC

34

TEST4

33

CONT3

26

5 4 5

RWC

EFLG
SBSY

CONT4

27

28

C802

2

3 5

FSX

WRQ

EMPH

CONT5

29

R801

47/16

1

5

SBCK

XVSS

XOUT
XVDD

MUTER

RVDD

RCHO

RVSS

LVSS

LCHO

LVDD

MUTEL

C2F

31

30

1K

0

5

SFSY

XIN

DOUT

32

9

4

48

PW

47
46

45
44

43
42
41

40

39

38
37
36

35
34

33

TEST3

C801

0.01

LD

PD

BI802

CNS802

5

5

4

4

3

3

2

F
E
B
A
K

TR+

TR–

FO–

FO+

XL801

16.93MHz

C868

R874

100

0.0022

10K

R876

10K

R875

0.0022

C870

C869

100/10

R880
100

C890

10/16

C867

10/16

R873

100

1

1
2
3
4
5
6
7
8

BI801

2
1

1
2
3
4
5
6
7
8

CNS801

PIN
NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22

VR

K

5

E

4

A

3

B

2

F

1

TR–

1

TR+

2

FO+

3

FO–

4

GND

5

PD

6

VR

7

LD

8

TR–

PICKUP UNIT

IC801

PIN
NO.

23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

VOLTAGE

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.2V

2.2V
0V
0V
5V
5V

4.8V
0V
5V
0V
0V

1.5V

2.4V

2.5V

2.5V

VOLTAGE

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

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V
0V

M0N

PIN
NO.

45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

LD

K
E
A

B
F

C

TR+

FO+

FO–

TR–

VOLTAGE

0V

2.5V

2.5V
0V
0V

2.4V

4.1V

4.7V
0V
0V
5V
5V

2.5V

2.5V

0.9V

0.9V

2.1V

4.2V
0V
5V

L801

0.82µH

+B +B

30

BIAS IN

IC803

LA6541

RESET

VCC

VIN4

VIN4G

VO4+
VO4–

GND
GND

GND
VO3–
VO3+

VG3

VIN3

29
28
27
26
25
24
23
22
21
20
19
18

CD

17

16

C846

330/10

Q802

KTA1273 Y

C844
330/10

L802

0.68µH

1

VCC
MUTE

2
3

VIN1

4

VG1
VO1+

5
6

VO1–

7

GND

8

GND

9

GND

10

VO2–

11

VO2+

12

VG2

13

VIN2

14

REG OUT
REG-B

15

C843

100/10

C873

0.01
TR+

TR–
FO–
FO+

SP+
SP–

SL+
SL–

PU-IN

C888

0.022

TUNER GND

6
5
4
3
2
1

BI803

CD MOTOR PWB-B

6

6

5

5

4

4

3

3

2

2

1

1

CNS803

CNP803

VOLTAGE

1
2
3
4
5
6
7
8
9

7.2V
0V

2.8V
0V

3.6V
0V
GND
GND
GND

3.2V

3.2V
0V

2.6V

5.1V

6.6V

IC803

PIN
NO.

16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

VOLTAGE

0V
0V

2.5V

2.6V

3.5V

2.9V
GND
GND
GND

3.2V

3.2V
0V

2.6V

0.4V

7.2V

PIN
NO.

10
11
12
13
14
15

M
M

M701
SPINDLE
MOTOR

M702
SLED
MOTOR

SW702
PICKUP IN

• NOTES ON SCHEMATIC DIAGRAM can be found on page 9.

78 9101112

Figure 15 SCHEMATIC DIAGRAM (2/6)

– 15 –

QT-CD161/141

R

R

A

FM SIGNAL
CD SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL

B

L-CH

C

D

E

R-CH

ERASE HEAD

TUNER +B

P18 3-A,4-A

CNS101 CNP101

1 1

2 2

3 3
4 4

R P
SW102-H

R-CH

23

GND(A)

22

L-CH

21
32

D GND

28

R104

12K

R102

330

SW102-C

R

PP

R

P

SW102-E

+B

SW102-B

R

C107

(B)820P

C108

820P(B)

R
SW102-D

0.0018(B)

15K(1/4W)

R101
330

0.0018(B)

R109

270P(B)

R110

C351

0.0022
(ML)

120

C109
270P(B)

C111
330P(B)

C110

120

R103

12K

5

9

C105

R105

R107

1K

C112

330P(B)

P

R108
1K

C106

R106

15K

C115

0.018(ML)

R113

8.2K
R115

R117

3.9K

3.9K

C119

8

2.2/50

10

2

C120

47/16

C118
10/16

R118

3.9K

R353

47K(1/4W)

0.0056

R120

3.3K

C353

(ML)

R119

C113
47/16

3 1

NF1

IN1

BA3311L

REC./P.B.

EQUALIZER

IN2

NF2

11

4

C114
47/16

C116

0.018
(ML)

BIAS OSC

L301

C117
10/16

PRE AMP

IC101

OUT1

FILTER

ALC T

GND

OUT2

6

7

R116

3.9K

R114

8.2K

SW102-G

P R

R351
330
(1/4W)

C354

0.022(ML)

R352

150

(1/4W)

C352

220/10

VCC

12

R121

2.7K

C121

SW102-A

3.3K

0.01

D101

1N4148

D102

1N4148

C122

0.01(Z)

P R

D103

1N4148

C123
220/10

R125
680K

SW102-F
R P

R122

2.7K

R124

3.3K

Q351
KTC8050 D

R354
10(1/4W)

R123

3.3K

TAPE

TUNER

CD

SW201-A

TAPE
TUNER
CD

SW201-B

+B

C152

0.039
(ML)

R153

2.2K

C151

0.039(ML)

SW202-A

X-BASS
SW202-B

X-BASS

R154

2.2K

D303

1N4004

OFF ON

OFF ON

2

2

R457

R458

1.2K

1.2K

+B

C252

0.022

F

P14 2-H,P19 11-HION

R-CH

AUDIO GND

L-CH

CD +7.4V

DIGITAL GND

POWER GND

+7.4V

MUTE
FUNC(CD)
BACK UP

P19 7-A,11-H

R456

15K

16
15
14

R455

42

15K

1

13

+B

12

43
44
40

G

MAIN PWB-A1(2/4)

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 9.

1

2

34 5

Figure 16 SCHEMATIC DIAGRAM (3/6)

6

– 16 –

QT-CD161/141

R151
22K

R152
22K

C217

0.0027
(B)

C215

0.027(ML)
R219

3.3K
R220

3.3K

C216

0.027(ML)

C218

0.0027(B)

IC101

PIN

VOLTAGE

NO.

<0V> [3.23V]

1

<0V> [0V]

2

<0.6V> [0.6V]

3

<0V> [0V]

4

<0V> [0V]

5

<0V> [0V]

6

<0V> [0V]

7

<7.43V> [7.43V]

8

<0V> [0V]

9

<7.37V> [7.37V]

10

<0.6V> [0.6V]

11

<3.3V> [3.3V]

12

< >: Recording
[ ]: Play

C228

VR201-B
20K(B)

VR201-A
20K(B)

1/50

C219

R221

0.068

1K

(ML)

R223

4.7K

R225
100K

Q202
KTC3199 GR

R224

4.7K

C220

R222

0.068

1K

IC202

PIN

VOLTAGE

NO.

0.1V

1

0V

2

11.2V

3

0V

4

11.3V

5

0V

6

0.1V

7

12V

8

10.4V

9

5.8V

10

0V

11

5.8V

12

10.4V

13

0.001(B)

Q201
KTC3199 GR

C225

220/25

C222

0.001(B)

C221

C223
100/10

C224
100/10

2

1

4

7

3
6

D201

1SS133

+
–

IC202

LA4597

POWER

AMP.

–
+

8

5

12

13

11

9

1

0

C226

0.022(Z)

C233

470/10

C229

100/10

C231

0.1
(ML)

C232

0.1
(ML)

C230

100/10

C234
470/10

C227
4700/25

HEADPHONES PWB-A2

R227
120(1/4W)

R228

120(1/4W)

CNP201

3

1

FW202

1

3

CNS201

1

1

2

2

3

3

CNP201

QT-CD141

QT-CD161

CNS201

1

1

2

2

3

3

SPEAKER
WOOFER
8OHMS

SP501
L-CH

SP502
R-CH

WOOFER
8OHMS

SPEAKER
WOOFER
8OHMS

WOOFER
8OHMS

SP501
L-CH

SP502
R-CH

D251

1N4148

D252

R252

1N4148

22K

R254

10K

R256

4.7K

+B

TAPE
TUNER
CD

SW201-C

0.047(Z)

D301

1N4148

+B

D302

1N4148

R251

10K

C302

Q251
KTA1266 GR

R255

2.2K

1.8K

R253

VOLTAGE

REGULATOR

OUT

IC203

3

KIA7808P

2

SW201-D

CD
TUNER

TAPE

IN

1

C301
1/50

R230

2.7(1/4W)

CNP602

1
2
3

TERMINAL PWB-A3

D652

1N4004

CNS602

1
2
3

C652

0.022(Z)

C653

D653

0.022(Z)

1N4004

DC12V [ ''D'' SIZE(UM/SUM-1,
R20 OR HP-2)BATTERY x 8]

DC 3V [ ''AA'' SIZE(UM/SUM-3
R6 OR HP-7)BATTERY x 2
FOR TUNER MEMORY]

BATTERY PWB-A4,5

SW601
TAPE
MAIN SW

+

M

–

M601
TAPE MOTOR

D651

D654

1N4004

IN4004

C651

0.022(Z)

C654

0.022(Z)

T601

POWER TRANSFORMER

ACSO

AC INPUT
AC120V,60Hz

SO601

78 9101112

Figure 17 SCHEMATIC DIAGRAM (4/6)

– 17 –

QT-CD161/141

P19 8-A,P16 1-E

P16 1-E

A

B

+B

C

R37

6.8K

D

CF2

3

1

T3

+B

E

C12

0.022

F

IC1

TA7358AP

FM FRONTEND

G

F1

FB

B.P.F

C49
1/50

R38

6.8K

R36

2.2K

R35

2.2K

C32

0.022

C13

47/16

9

C9

33P(CH)

8

R4
10

7

C8

15P(CH)

6
5

4

3
2

C2

1

0.01

3
2
1

1SS133

2

AMIF

C3

4.7P(CH)

D1

10K

R39

1

C48
1/50

C45

0.022(M)

R56

47

VD1

KV1360NT

C7

0.001

FM RF

3

2

C47
1/50

C33

22/16

C31

0.022

3

1

R5

10K

FM OSC

L2

T1

22K

R70

100K

L1

D2

1SS133

Q9

KRA109 M

12

NC

11

AM/FM

R CH

10

C46

0.022(M)

L CH

9

8

TUN IND

7

DTE OUT

ST IND

6

GND

5

AM IF

4

AM

3

MIX

2

IN
FM IF

1

CF1

2

C11

22P(CH)

VD2

KV1360NT

R71

C10

FM IF

R3

33K

R2

C4

27P(CH)

TP2

VCO

FM
–M/ST

MPZ
–IN

FM DET

FM

AM RF

AM

AM

OSC

6.8K

24P

(UJ)

22(1/4W)

C6

0.01(M)
C5

0.01(M)

13

C42

3.3/50

14
15

16

C41

3.3/50

17
18

C38

0.018
(M)

19

20

+B

21

22

+B

23

24

R7

4.7K

R13

390

FM BAND

COVERAGE

C14

0.022

C16

0.022(M)

R1

(STYROL)

R29

1.2K

IC2

T2

0.0015

6.8K(B)

R25
33K

R24

R-CH

GND(A)

L-CH

21

23

22

+B

C43

R30

D3

15K

VR1

VCO

D4

1SS133

LA1805

FM/AM/IF MPX.

C40

C72

470P

0.001

C36

C34

220/10

C37

C35

0.022
+B

TP1

AM TRACKING

0.0022

3.9K

FM DET

+B

R44

180(1/4W)

1SS133

R42

4.7K

+B

0.022

R12

4.7K

R9

100K

VD3-1

KV1591A-2

fL fH

AM ANT

R43
47K

0.022

R17

10K

C17

0.047

R48

56K

C26

R45

L5

C18

0.022

TC1

R72

1K

ZD1

DZ5.1BSB

220(1/4W)

C50

0.022

R47
56K

C57

100/10

C21

0.022

CH 470µH

C27

0.022

R15

1.2K

C24

2.2/50

5P

L3

0.022

10/16

C29

KTC3199 GR

CONTROL

R11
56K

C52

C51

GND(D)

MONO/STEREO

STEREO

TUNED

24

R46
56K

29

26

25

28

X1

4.5MHz

12P(CH)

1 2 3 4

X IN

X OUT
VDD

DO 1

DO 2

16

14

15

R16

2.2K

560

C25

0.001

Q4

KTC3199 GR

Q3

Q3,Q4:VT

C20

470P

C19

VD3-2

12P(UJ)

KV1591A-2

R10

L4

68K

AM OSC

PLL(DATA)

PLL(CLOCK)

PLL(PERIOD)

32

31

30

1K

R50

1K

R52

R51

1K

C30

15P(CH)

5

6

DATA

CLOCK

PERIOD

GND

FM-IN

11

12

13

C60

100P

R6

R8

47K

Q1

KTC3194 Y

RE AMP.

0.022

C58

0.01

0.022

AM BAND

COVERAGE fL

TUNER +B

+B

PIN
NO.

+B

C56

0.01

PPL

@

IC3

Q5

2

KRA102 M

3

1

2

R20

6.8K

TC9216P

1

3

C28

2.2/50

R18
47K

PIN

VOLTAGE

NO.

1.6V

1

1.6V

2

6V (6.3V)

3

0.2V (0.7V)

4

1.6V

5

0V

6

0V

7

0V

8

2.5V

9

2.5V

10

5.1V (6.6V)

11

0.8V (1V)

12

Q6

IC2

PIN
NO.

13
14
15
16
17
18
19
20
21
22
23
24

7

OT-1

OT-2

IF-IN

AM-IN

10

C22

0.01(M)

8

OT-3

I/O5(ST)

9

C71

IC3

PIN

VOLTAGE VOLTAGE

NO.

2.4V

1

2.3V

2

6.8V

3

0.1V

4

4.9V

5

3.0V

6

––

7

––

8

––

9

C59

C70

0.001

PIN
NO.

FM SIGNAL
AM SIGNAL

MAIN PWB-A1(3/4)

IC1

VOLTAGE

0.9V

1

1.6V

2

6.8V

3

0V

4

0V

5

6.8V

6

1.4V

7

6.2V

8

6.8V

9

KRC104 M

Q5,Q6:FM RIPPLE FILTER

VOLTAGE

1.2V (0V)

1.9V (1.6V)
1V (1.3V)

1.7V

1.5V (1.7V)

1.5V (1.5V)

0.4V (0.4V)

6.1V (6.4V)

6.1V (6.4V)

1.6V

1.6V

1.6V
( ): AM

10

––

11

0V

12

2.3V

13

GND

14

0V

15

––

16

0.5V

H

FM

ROD ANTENA

• NOTES ON SCHEMATIC DIAGRAM can be found on page 9.

1

2

34 5

Figure 18 SCHEMATIC DIAGRAM (5/6)

6

– 18 –

QT-CD161/141

IC202

PIN

VOLTAGE

NO.

0.1V

1

0V

2

11.2V

3

0V

4

11.3V

5

0V

6

0.1V

7

12V

8

10.4V

9

5.8V

10

0V

11

5.8V

12

10.4V

13

P16 1-F,P14 2-H

BACK UP +B

GND(D)

40

1

+B +B

C501

100/10

1SS133

D502

C502

0.022

C503

10/16

C506

2.2/50

R502

2.7K

C505

0.022

3

C508

0.022
C509

0.1/50

KTC3199 GR

RESET

Q501

C521

0.0047

+7.4V

12

1SS133

C504

0.022
1SS133

2

PST9142

RESET

IC502

1

R504
100K

R505

5.6K

1

2

C516

150 (1/4W)

100P

R501

ZD501

DZ5.6BSB

D501

+B

D504

D503

1SS133

R503

1.8K

D505

1SS133

D506

1SS133

Q502

3

KRC107M
RESET

MONO/STEREO

TUNED

24

25

+B

R523

15K

R552

1K

R530

15K

P18 5-A

R550

15K

R549

15K

L501

100µH

56K

10K

R518

10K

R524

56K

R531

15K

STEREO

26

R508

R517

PLL(PERIOD)

PLL(CLOCK)

PLL(DATA)

31

30

29

R512 560

R513 560

R511 560

R519 560
R520 1K

R521 1K
R522 1K

R536 1K

R537 1K

R538 1K

1K

R510 1K

R509 1K

0.022

R534 1K

R535 1K

R533 1K

PIN

VOLTAGE

NO.

3.0V

1

1.5V

2

––

3

––

4

––

5

––

6

––

7

––

8

5.0V

9

5.0V

10

5.0V

11

––

12

2.1V

13

5.0V

14

4.6V

15

4.9V

16

4.9V

17

3.9V

18

––

19

––

20

––

21
22

––

3

1

2
1

3

RX501
REMOTE
SENSOR

C510

0.1(M)

R507

C512

0.022

C513

R528
10K

QT-CD161
ONLY

PIN

VOLTAGE

NO.

––

23

4.0V

24

0.5V

25

––V

26

5.0V

27

––

28

––

29

2.0V

30

2.3V

31

GND

32

––

33

5.0V

34

5.4V

35

––

36

––

37

––

38

––

39

––

40

––

41

––

42

––

43

––

44

SWITCH PWB-A5

FW501

3

1

OPEN/CLOS

C519

1

10/16

2

R548

47

C511

0.022

R526

10K

R527
10K

R532
1K

R539

1K

80

VL3

123456789

VL1
LID SW
CLOCK
DATA
PERIOD
T-MUTE
AREA
KEY1

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

KEY0
STEREO
MONO/ST
WRQ
SD
PU IN

DRF
RESET
CQCK
COIN
RWC
SL+
SL–
REMOCON
SYS
STOP

25

IC501

SW507
CD LID

2.7K

79

COM0

COM1

26

27

XL501

4.19MHz

VOLTAGE

––
––
––
––
––
––
––
––
––
––
––

2.2V

2.2V

2.2V

2.2V

2.2V

2.2V

2.2V

2.2V

2.2V

2.2V

2.2V

SW505

DOWN

PREST

R547

3.3K

SW501

TUNER

UP

R544

3.3K

PIN

VOLTAGE

NO.

2.2V

65

2.2V

66

2.2V

67

2.2V

68

2.2V

69

2.2V

70

2.2V

71

2.2V

72

5.0V

73

––

74

––

75

––

76

––

77

––

78

––

79

––

80

SW506

PREST UP

TUNER

DOWN

R545

5.6K

SW502

PIN
NO.

45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
63
64

QT-CD161 ONLY

R506

COM2

COM3

AVSS

VREF

VCC

SEG0

SEG3

SEG2

SEG1

CD/TUNER CONTROL

MICROCOMPUTER

IX0016SJ

25

27

SQ OUT

RESET

P-MUTE1

P-MUTE2

VSS

32

R540
1K

SYNC IN

FUNC

33

36

35

34

R541

1K

XOUT

XIN

30

31

29

28

BAND

R546

15K

66676869707172737475767778

SEG6

SEG5

SEG4

SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16

IC501

38

39

37

SW503

65

SEG7

SEG9

40

SEG8

MEMORY

SW504

4142434445464748495051525354555657585960616263

IC101

PIN

VOLTAGE

NO.

<0V> [3.23V]

1

<0V> [0V]

2

<0.6V> [0.6V]

3

<0V> [0V]

4

<0V> [0V]

5

<0V> [0V]

6

<0V> [0V]

7

<7.43V> [7.43V]

8

<0V> [0V]

9

<7.37V> [7.37V]

10

<0.6V> [0.6V]

11

<3.3V> [3.3V]

12
< >: Recording
[ ]: Play

1
2
3
4
5
6
7
8
9

10
11

1312
14
15
16
17
18
19
20
21

LCD501

R543

R542

6.8K

MAIN PWB-A1(4/4)

32

PU IN

WRQ

5

DRF

11

10

CQCK

RESET

P14 3-F

9

COIN

8

7

SL+

RWC

6

SL–

4

SQ OUT

42

43

FUNC(CD)

P-MUTE

P16 1-F

3.3K

78 9101112

Figure 19 SCHEMATIC DIAGRAM (6/6)

– 19 –

QT-CD161/141

S

B

CD-C161 ONLY QT-CD141

3

J201

HEADPHONES

A

CNS201

P21 10-B

FROM

SPEAKER

R227
R228

CNP201

FW202

1

1
2
3

HEADPHONES PWB-A2

B

P22 3-E

TO SWITCH PWB

C

D

E

F

G

H

1

FW201

4

SW201

FUNCTION

OFF

ON

QT-CD161

ONLY

FW501

P22 6-E

TO SENSOR PWB

TAPE

CD

TUNER

5

1

4

L-CH

A

CD-TUNER-TAPE

C

21

(CD + 2-BAND)

20
19
18
17

16
15
14
13
12

11
10

9

8

7

6

5

4

3

2

1

RX501
REMOTE

1

SENSOR

2

R532

3

R548

C519

R501

ZD501

SW507

CD LID

OPEN/CLOSE

COLOR TABLE

BR

RD(R)

OR

YL

GR

BL
VL

GY

WH(W)

BK
PK

4

C252

LCD501

C501

C502

BROWN

RED
ORANGE
YELLOW

GREEN

BLUE

VIOLET

GRAY
WHITE
BLACK

PINK

FW201

R-CH

B

SW201

D

R254

D252

C510

C503

FW501

C504

1

50

IC501

80

C511

W601

D505

1
2
1

C152

R152
R151

R255
R251

ECB

R541

41

45

5

1

R526

R504

IC502

C509

C151

B
A

R542

R543

R540

40

35

30

25

20

24

15

10

R527

C512

C513

R507

R528

R508

R530

D506

R505

B

3

C521

C

2

E

1

Q501

Q502

R511

R154

R153

SW202
X-BASS

D301

D302

R256

R252

Q251

R253

D251

55

64

60

70

65

75

R506

L501

J48

D501

D502

C506

R502

D503

D504

4

C508

C505

R503

1

4

BK
BK

XL501

R512

R518

R517

R513

R552

ONLY

P21 10-B

FROM

SPEAKER

CNS201

2

3

1
CNP201

C105

R105

R103

R104

C115

R113

R121

R115

R117

FW202

C221

C851

R45

R849

C219

R119

D201

R874

C117

R123

D101

R125

C121

C233

R225

C228

C224

C220

C222

101112

C868

XL801

33

R880

40

48

45

50

55

49

R860

64

C842

C847

R858

C841

C834

C833

R836

D802

C821

ZD1

C50

C57

R509

R457

R510

R455

R458

R456

C869

R875

R519

R221

C870

R523

R520

R521

C516

R876

R222

R224

R522

R223

R533
R534
R535
R536
R537
R538

C887

Q202

Q201

R539

R531

1

3

E C B E C B

C223

123456789

C225

R873

R524

R43

R549
R72

R550

3

2

R48

R47

R46

78
6

R50

R51

R52

345

C30

2
1

X1

C29

C71

C70

CNP101

1 2 3 4

CEHG

ABDF

R101

R108

C107

C108

R107

R109

C110

C109

C111

C112

C113

11

1 3579

10

12

246

8

D102

C119

C123

C120

C234

C227

C226

C229

C231

13

C232

IC202

C230

IC203

1

C301

2
3

C302

L802

C867

D303

C873

C843

C890

32

L801

35

30

25

17

20

IC802

15

16

10

60

5

R832

1

R856

R857

C831

R835

R838

C850

R871

C845

C835

C837

C838

Q6

123

C56

9

C21

10
11

L5

IC3

C27

C60

141312
15
16

R6

R8

C58

BCE

Q1

IC1

C8

C3

C2

D1

R102

R110

C114

C118

IC101

R120

D103

R833

C832

R837

C839

C840

R18

C28
R20
C72

Q5

C22

R16

C12

89
7
6
5
4
3
2

1

3

F1

2
1

C351

R352

R353

Q351

R354

C352

L301

ECB

CNP602

123

TO TERMINAL PW

C122

SW102

C116

R118

R124

C106

R116

R122

R114

R106

R351

C354
C353

CNS602

R230

Q802

C846

R831

R834

48

49

C830

C819

B C E

15

R824

R825

C818

10

C844

R830

C817

R822

40

45

IC801

50

55

64

C802

15

R823

C820

33

35

60

R801

C822

32

C801

R820

C815

R821

C816

R826

R827

R816

C812

R817

30

25

17

20

15

16

10

5

C810

1

C803

R803

R804

R802

IC803

R819

R815

C814

R813
C813

R811

R808

C805

C811

C804

R840

R814

R812

R809

R842

16

R839

C849

C848

BCE

1

BI801

20

25

30

8

R810

R829

R828

C809

C807

R806

R807

C808

1

BI802

R805

C806

5

R44

C888

6

1

BI803

R38

R36

C48
R42

C45

C47

R35

D3

R37

AM IF

T3

321

C32

R17

C26

C24

R15

C25

R13

C10

L2

C9

R71

R4

FM IF

R1

L1

D2

FM RF

C4

VD1

C7

C5

R2

CF2

1 2 3

C33

Q4

ECB
BCE

Q3

VD2

C11

R5

R70

R7

C14

T1

C13

R56

C6

R3

C16

C59

Q9

3 2 1

C49

C46

C37

12
10

IC2

5

1
C31

3

CF1

2
1

C18

R10
C20

R12

R11
C17

R9

AM BAR ANTENNA

R39

C51

MPX VCO CK

76kHz

R29

C43

13

C41

15

C38

R25

C36

20

R24

24

C34

VD3

-2 -1

L3

TC1

VR1

C35

AM OSC

L4

C19

R30

C42

C40

C52

Q801

W601

D4

12

10

1

FM DET

T2

11

CNS

6

BK

1

WH

2

WH

3

WH

4

WH

5

WH

6

WH

7

WH

8

7

CN

BK

1

WH

2

WH

3

WH

4

WH

5

8

9

CNS803

BR

1

GY

2

GY

3

GY

4

GY

5

GY

6

• The numbers 1 to 12 are waveform numbers shown in page 10.

1

2

34 5

Figure 20 WIRING OF P.W.BOARD (1/3)

– 20 –

MAIN PWB-A1

6

QT-CD161/141

8

SP502 SP501

P20 1-A

TO

HEADPHONES PWB

CNP602

123

TO TERMINAL PWB

SW601

TAPE MAIN

(233-7)

M601

TAPE MOTOR

(233-6)

CNS602

BR

YL

11

W601

R
42

C848

BCE

Q801

1

R810

BI801

12

CNS801

6

BK

1

WH

2

WH

3

WH

4

WH

5

WH

6

WH

7

WH

8

7

(QT-CD161)

CNP201

P20 3-A

TO

MAIN PWB

(QT-CD141)

CNS201

CNS101

WH

1

BK

2

RD

3

BK

4
3
2
1

BK
WH
RD
BK

SPEKERS

ERASE HEAD

TAPE

(233-5)

PICK UP UNIT

54321

78 654321

L-CHR-CH

RECORD/PLAYBACK

HEAD(233-4)

BKRDWH

BK

9

C807

1

BI802

5

PX VCO CK

76kHz

C43
C41

38

25

C36

R24

C34

-

­TC1

TENNA

VR1

C35

AM OSC

C19

10

1

R30

D4

C42

C40

FM DET

T2

L4

C52

8

9

BR
GY
GY
GY
GY
GY

BK
WH
WH
WH
WH

CNS803

1
2
3
4
5

6

CNS802

1
2
3
4
5

FM ROD ANTENNA( )

210

CD MOTOR PWB-B

-

+

PICKUP IN

SPENDLE MOTOR

M701

SLED MOTOR

M702

SW702

+

6
5
4
3
2

CNP803

1

F3895AF

-

B-A1

78 9101112

Figure 21 WIRING OF P.W.BOARD (2/3)

– 21 –

QT-CD161/141

(208)

A

B

(230)

C

DC3V["AA" size (UM/SUM-3,R6 or HP-7)

D

BATTERIES

battery x 2 for tuner memory]

BATTERY PWB-A4

BATTERIES

DC12V["D" size (UM/SUM-1,

R20 or HP2) battery x 8]

C653

D653
D652

C652
C654

D654
D651

C651

TERMINAL PWB-A3

(237)

CNS602

PT
PT
ACSO

+B
GND
G
ACSO

OR

YL
YL

OR

RD

BK

BK

T601

POWER

TRANSFORMER

OR

OR

CNS602

3
2
1

RD
RD

P20 6-B

TO MAIN PWB

CNP602

SO601

AC SOCKET

AC 120V

60Hz

BACK-UP

BATTERY PWB-A5

E

P20 1-E

SW505

PRESET
DOWN

SW506

PRESET
UP

TO MAIN PWB

FW501

1

4

FW501

P20 1-B

TO MAIN PWB

FW201

F

G

SWITCH PWB-A6

SW504

MEMORY

SW503

R546

BAND

SW502

TUNER
DOWN

R545

FW201

4

C217

R219

C215

R220

VR201

1

C520

C216

C218

R544

SW501

TUNER
UP

R547

H

1

2

34 5

6

Figure 22 WIRING OF P.W.BOARD (3/3)

– 22 –

QT-CD161/141

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

Cleaning Disc
PARTS CODE:
UDSKA0004AFZZ

Figure 23

– 23 –

QT-CD161/141

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.

• The CD function will not work.

The CD operating keys don't work.

Yes

Check the CD, DPS microcomputer (IC501), power supply, 4.19
MHz and 16.93 MHz clock, and reset terminal.

Yes

Check the waveform of SCK, SO (DATA) and SI (COMM).

Yes

See if the pick-up is in the pick-up in SW702(pu-in switch) position.

Yes

If the items mentioned above are OK, check the main
microcomputer IC501.

• The CD operating keys work.

Check the Focus - HF system.

Playback can be performed without a disc.

Yes

Does the pick-up move up and down twice?

No

Does the output waveform of IC801(16)(FD) match that shown in
Fig. 24?

No

Check the IC801(50)(CLK) line, 4MHz.
Check the microcomputer data on pins (51)(CL), (52)(DAT) and
(53)CE.

Yes

Yes

0.5s

0.50 V
IC801 16 FD

0.5s

0.50 V
IC801 15 TD

Focus search OK.

Check the area around IC803-BI801/CNS801.

Focus search
is performed
two times
when play
operation is
done without
disc.

– 24 –

1
2

Figure 24

• Playback can only be performed when a disc
is loaded.

QT-CD161/141

Is the Focus servo active? (Can you hear it working?)

Yes

Does the DRF signal change from "L" to "H"?

Yes

Is HF waveform normal (see the Fig. 25-1, 2)?

Yes

Check the tracking system.

HF

0.1V/DIV

0.5µsec/DIV(DC)
IC801 41
(When playing
back the disc)

No

No

No

0.5s

1.00 V
IC801 16 FD

0.5s

10.0 V
IC801 12 CLV+

0.5s

10.0 V
IC801 54 DRF

0.5s

2.00 V
IC801 7 TE

Check the laser diode driver.
Check the area around IC801(16) - (21) (focus servo circuit).

Yes
If the disc is not turning, the DRF
should not change to "H".

Check the spin

▼

system.

Yes

Level is abnormal.

Check the periphery

▼

of IC801 pins 41 and

42.

Yes

Waveform is unstable.

Check the spin

▼

system.

Waveform in case
of normal play­back

2
1

3
4

Figure 25-1

• Check the tracking system.

Check waveform of IC801 pin 7 (TE).

The waveform shown in Fig. 25-3
appears, and no-disc state appears
soon.

Play is possible in
TEST mode.

Data cannot be read.

Yes

Yes

The unit will be initialized in
Normal mode,but it will not
playback.

Yes

5ms

1.00 V
IC801 7 TE

Tracking servo is inoperative.

Normal jump is impeded, and the
program top cannot be reached.

Yes

Check the VCO-PLL system.

Figure 25-2

Yes

4

Check the periphery of IC801
pin 8 to pin 15, and IC803 to
BI801/CNS801.

Check the periphery of
IC801 pin 14.

Yes

5 ms

5.0 V
IC801 54 DRF

3

Figure 25-3

– 25 –

QT-CD161/141

• Checking the spin system.

Play operation is performed without disc.

Yes

The turntable rotates a little.

No

The turntable fails to rotate or rotates at high speed.

• Checking the VCO-PLL system

Play operation is performed when disc exits.

Yes

Although HF waveform is normal, TOC data cannot be read.

Stop --> Play

As VCO freque-

0.5s

1.00 V
IC802 3 PDO

0.5s

1.00 V
IC801 16 FD

ncy is locked at

4.32 M Hz,
voltage of PDO

2

rises and stabili­zes.

Yes

Yes

Yes

The spin driver circuit is normal.

Check the periphery of IC801 pins 23 to 27, pin 39 and pin 40,
IC802 pin 12 and pin 13, IC803 to BI803/CNS803.

Check PDO waveform (Fig. 26).

Error

Check the IC801 pins 43 and 44, IC802 pins 3, 5, 7, 9 and 10.

3

Figure 26

• Although HF waveform is normal and the time
indication is normal, no sound is emitted.

Check IC802 pin 48 (EFLG).

Yes

Check IC802 pins 37and 40.

Abnomal

Check the periphery of IC802 (OPAMP).

No

Usually, the number of pulses of flawless disc is 100 pulses/sec
or less.

– 26 –

QT-CD161/141

FUNCTION TABLE OF IC

IC501 RH-iX0016SJZZ (IX0016SJ): CD/Tuner Control Microcomputer (1/2)

Pin No.

1,2 VL2 VL2 Input LCD bias setting power input terminal.
3 P67/AN7 LID-SW (CD) Input CD cover position detection SW input terminal.

4 P66/AN6
5 P65/AN5 DATA (TUNER) Input/Output PLL IC serial data input/output terminal.

6 P64/AN4
7* P63/AN3

8* P62/AN2 AREA (TUNER) Input Destination voltage detection input. Operates as an A/D input port, and when a reset is executed,

9 P61/AN1 KEY1 Input Operation key input. Max. 8 keys.
10 P60/AN0 KET0 Input Operation key input. Max. 8 keys.
11 P57/ADT STEREO Input FM stereo broadcast detection input.

12 P56/TOUT MONO/ST Output FM mode output terminal read by the tuner IF IC.

13 P55/CNTR1 WRQ (CD) Input Detection input to standby with sub Q code output from LC78623D.
14 P54/CNTR0 SD (TUMNER) Input Tuner carrier wave detection input.

15 P53/RTP0 PU IN (CD) Input CD pickup position detection SW input terminal.

16 P52/RTP0 DRF (CD) Input HF level detection input terminal from LA9241M.
17 P51/INT3
18 P50/INT2 CQCK (CD) Output Serial data synchronous clock for LA9241M/LC78623D interface.
19 P47/SRDY COIN (CD) Output LA9241M/LC78623D control command output terminal.
20 P46/SCLK RWC (CD) Output READ/WRITE control output terminal to LA9241M/LC78623D.
21 P45/TXD SL+ (CD) Output Slide motor forward control output terminal to LA9241M.
22 P44/RXD SL- (CD) Output Slide motor back control output terminal to LA9241M.
23 P43/INT1 REMOCON Input Remote control signal input terminal

24 P42/INT0 SYS-STOP Input Input terminal for detecting a power failure or dead battery.

25 P41/Ø SQOUT (CD) Input Sub code Q data input terminal from LC78623D.
26* P40 N.C
27 RESET RESET Input Microcomputer reset signal input.
28* P71/XCIN N.C No connect.
29* P70/XCOUT N.C No connect.
30 XIN XIN Input Main clock oscillator connection terminal.
31 XOUT XOUT Output
32 VSS VSS –– Microcomputer power GND.
33* P27 P-MUTE1 Output Audio signal mute condition output terminal.

34 P26 P-MUTE2 Output Audio signal mute condition output terminal.

35 P25 CD-FUNC Input CD function detection input terminal.

36 P24 SYNC-IN Input Record SW detection input terminal.

37* P23 N.C No connect.
38* P22 N.C No connect.
39* P21 N.C No connect.
40 P20 N.C No connect.
41* P17/SEG31 N.C No connect.
42* P16/SEG30 N.C No connect.
43* P15/SEG29 N.C No connect.

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

Terminal

Name

Port Name Function

CLOCK (TUNER)

PERIOD(TUNER)
T-MUTE (TUNER)

(TUNER) "L" = When receiving a stereo broadcast

(TUNER) "H" = FM stereo mode ("L" = FM mono/AM band).

CD-RESET (CD)

Input/

Output

"L" = CD cover CLOSED, "H"= CD cover OPEN.

Output PLL IC serial data transmission timing CLOCK output terminal.

Address 8 bits, sending/receiving 24-bit data.
Output PLL IC serial data transmission start/stop pulse output terminal.
Output Tuner output mute output terminal.

"H" = Mute ON.

detects the DC voltage present at the destination.

.

"L" = When a carrier wave is detected.

"L" = Innermost circumference.

Output LC78623D reset signal output.

Detected on the falling edge.

"L" = The unit will enter the backup mode.

"H" = Mute ON.

"L" = Mute ON.

"H" = CD function.

"H" = Record SW ON.

– 27 –

QT-CD161/141

IC501 RH-iX0016SJZZ (IX0016SJ): CD/Tuner Control Microcomputer (2/2)

Pin No.

44* P14/SWG28 N.C No connect.
45* P13/SEG27 N.C No connect.
46* P12/SEG26 N.C No connect.
47* P11/SEG25 N.C No connect.
48 P10/SEG24 N.C No connect.
49 P07/SEG23 N.C No connect.
50 P06/SEG22 N.C No connect.
51 P05/SEG21 N.C No connect.
52 P04/SEG20 N.C No connect.
53 P03/SEG19 N.C No connect.
54* P02/SEG18 N.C No connect.
55 P01/SEG17 N.C No connect.
56 P00/SEG16 SEG16 Output LCD segment output.
57 P37/SEG15 SEG15 Output LCD segment output.
58 P36/SEG14 SEG14 Output LCD segment output.
59 P35/SEG13 SEG13 Output LCD segment output.
60 P34/SEG12 SEG12 Output LCD segment output.
61 SEG11 SEG11 Output LCD segment output.
62 SEG10 SEG10 Output LCD segment output.
63 SEG9 SEG9 Output LCD segment output.
64 SEG8 SEG8 Output LCD segment output.
65 SEG7 SEG7 Output LCD segment output.
66 SEG6 SEG6 Output LCD segment output.
67 SEG5 SEG5 Output LCD segment output.
68 SEG4 SEG4 Output LCD segment output.
69 SEG3 SEG3 Output LCD segment output.
70 SEG2 SEG2 Output LCD segment output.
71 SEG1 SEG1 Output LCD segment output.
72 SEG0 SEG0 Output LCD segment output.
73 VCC VCC Microcomputer power +5V.
74 VREF VREF A/D converter power +5V.
75 AVSS AVSS A/D converter power GND.
76 COM3 COM3 Output LCD common output terminal.
77 COM2 COM2 Output LCD common output terminal.
78 COM1 COM1 Output LCD common output terminal.
76 COM0 COM0 Output LCD common output terminal.
80 VL3 VL3 Input LCD bias setting power input terminal.

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

Terminal

Name

Port Name Function

Input/

Output

– 28 –

PARTS GUIDE

QT-CD161/141

“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

QT -CD161(S)
QT -CD141(BK)

For U.S.A. only

Contact your nearest SHARP Parts Distributor to order.

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

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.

– 29 –

QT-CD161/141

PARTS CODE NO. PARTS CODE

PRICE

RANK

DESCRIPTIONNO.

INTEGRATED CIRCUITS

IC1 VHITA7358AP-1 J AG FM Front End,TA7358AP
IC2 VHILA1805//-1 J AM FM/AF IF MPX.,LA1805
IC3 VHITC9216P/-1 J AL PLL,TC9216P
IC101 VHIBA3311L/-1 J AK REC./P.B.Equalizer

IC202 VHILA4597//-1 J AH Power Amp.,LA4597
IC203 VHIKIA7808P-1 J AH Voltage Regulator,KIA7808P
IC501 RH-IX0016SJZZ J BC CD/Tuner Control

IC502 VHIPST9142/-1 J AH Reset,PST9142
IC801 VHILA9241M/-1 J AS Servo Amp.,LA9241M
IC802 VHILC78623D-1 J AY Servo/Signal Control,LC78623D
IC803 VHILA6541D/-1 J AW Focus/Tracking/Spin/Slide

Amp.,BA3311L

Microcomputer,IX0016SJ

Driver,LA6541D

TRANSISTORS

Q1 VSKTC3194Y/-1 J AD Silicon,NPN,KTC3194 Y
Q3,4 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q5 VSKRA102M//-1 J AC Digital,PNP,KRA102 M
Q6 VSKRC104M//-1 J AC Digital,NPN,KRC104 M
Q9 VSKRA109M//-1 J AC Digital,PNP,KRA109 M
Q201,202 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q251 VSKTA1266GR-1 J AB Silicon,PNP,KTA1266 GR
Q351 VSKTC8050D/-1 J AD Silicon,NPN,KTC8050 D
Q501 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q502 VSKRC107M//-1 J AC Digital,NPN,KRC107 M
Q801 VSKTA1266GR-1 J AB Silicon,PNP,KTA1266 GR
Q802 VSKTA1273Y/-1 J AE Silicon,PNP,KTA1273 Y

DIODES

D1~4 VHDDS1SS133-1 J AB Silicon,DS1SS133-1
D101~103 VHDDS1SS133-1 J AB Silicon,DS1SS133-1
D201 VHDDS1SS133-1 J AB Silicon,DS1SS133-1
D251,252 VHDDS1SS133-1 J AB Silicon,DS1SS133-1
D301,302 VHDDS1SS133-1 J AB Silicon,DS1SS133-1
D303 VHD1N4004//-1 J AB Silicon,1N4004
D501~506 VHDDS1SS133-1 J AB Silicon,DS1SS133-1

! D651~654 VHD1N4004//-1 J AB Silicon,1N4004

D802 VHDDS1SS133-1 J AB Silicon,DS1SS133-1
VD1,2 VHCKV1360NT-1 J AF Variable Capacitance,KV1360NT
VD3 VHCKV1591A2-3 J AU Variable Capacitance,

ZD1 VHEDZ5R1BSB-1 J AC Zener,5.1V,DZ5.1BSB
ZD501 VHEDZ5R6BSB-1 J AC Zener,5.6V,DZ5.6BSB

KV1591A2

FILTERS

CF1 RFILF0001SJZZ J AD FM IF
CF2 RFILA0002SJZZ J AH AM IF
F1 RFILR0001SJZZ J AD FM Band Pass Filter

TRANSFORMERS

T1 RCILI0001SJZZ J AD FM IF
T2 RCILI0002SJZZ J AD FM Detection
T3 RCILI0003SJZZ J AD AM IF

! T601 RTRNP0001SJZZ J AP Power

COILS

L1 RCILR0004SJZZ J AE FM RF
L2 RCILB0011SJZZ J AF FM,OSC
L3 CCORF0002SJ09 J AM Bar Antenna
L4 RCILB0012SJZZ J AF AM,OSC
L5 VP-CH471K0000 J AB 470 µH,Choke
L301 RCILB0003SJZZ J AD OSC,Bias
L501 VP-CH101K0000 J AB 100 µH,Choke
L801 VP-DHR82K0000 J AE 0.82 µH,Choke
L802 VP-DHR68K0000 J AC 0.68 µH

VARIABLE RESISTORS

VR1 RVR-M0001SJZZ J AC 6.8 kohms (B),Semi-VR [VCO]
VR201 RVR-B0003SJZZ J AK 20 kohms (B),Semi-VR [Volume]

PRICE

RANK

DESCRIPTION

VARIABLE CAPACITOR

TC1 RTO-H1003SJZZ J AG Trimmer

VIBRATORS

X1 RCRSB0001SJZZ J AN Crystal,4.5 MHz
XL501 RCRM-0003SJZZ J AK Ceramic,4.19 MHz
XL801 RCRM-0002SJZZ J AE Ceramic,16.93 MHz

CAPACITORS

C2 VCTYPA1CU103M J AE 0.01 µF,16V
C3 VCCCPA1HH4R7C J AA 4.7 pF (CH),50V
C4 VCCCPA1HH270J J AA 27 pF (CH),50V
C5,6 VCTYPA1CU103M J AE 0.01 µF,16V
C7 VCKYPA1HB102K J AA 0.001 µF,50V
C8 VCCCPA1HH150J J AA 15 pF (CH),50V
C9 VCCCPA1HH330J J AA 33 pF (CH),50V
C10 VCCUPA1HJ240J J AB 24 pF (UJ),50V
C11 VCCCPA1HH220J J AA 22 pF (CH),50V
C12 VCKYPA1HF223Z J AB 0.022 µF,50V
C13 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C14 VCKYPA1HF223Z J AB 0.022 µF,50V
C16 VCTYPA1CU223M J AB 0.022 µF,16V
C17 VCKYPA1HF473Z J AB 0.047 µF,50V
C18 VCKYPA1HF223Z J AB 0.022 µF,50V
C19 VCCUPA1HJ120J J AA 12 pF (UJ),50V
C20 VCKYPA1HB471K J AA 470 pF,50V
C21 VCKYPA1HF223Z J AB 0.022 µF,50V
C22 VCTYPA1CU103M J AE 0.01 µF,16V
C24 RC-GZA225AF1H J AB 2.2 µF,50V,Electrolytic
C25 VCKYPA1HB102K J AA 0.001 µF,50V
C26,27 VCKYPA1HF223Z J AB 0.022 µF,50V
C28 RC-GZA225AF1H J AB 2.2 µF,50V,Electrolytic
C29 VCCCPA1HH120J J AA 12 pF (CH),50V
C30 VCCCPA1HH150J J AA 15 pF (CH),50V
C31,32 VCKYPA1HF223Z J AB 0.022 µF,50V
C33 RC-GZA226AF1C J AB 22 µF,16V,Electrolytic
C34 RC-GZA227AF1A J AB 220 µF,10V,Electrolytic
C35 VCKYPA1HF223Z J AB 0.022 µF,50V
C36 VCKYPA1HB222K J AA 0.0022 µF,50V
C37 VCKYPA1HF223Z J AB 0.022 µF,50V
C38 VCTYPA1CU183M J AC 0.018 µF,16V
C40 VCKYPA1HB471K J AA 470 pF,50V
C41,42 RC-GZA335AF1H J AB 3.3 µF,50V,Electrolytic
C43 VCQSMV1HS152J J AB 0.0015 µF,50V,Styrol
C45,46 VCTYPA1CU223M J AB 0.022 µF,16V
C47~49 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C50 VCKYPA1HF223Z J AB 0.022 µF,50V
C51 RC-GZA106AF1C J AB 10 µF,16V,Electrolytic
C52 VCKYPA1HF223Z J AB 0.022 µF,50V
C56 VCKYPA1HF103Z J AB 0.01 µF,16V
C57 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C58 VCKYPA1HF103Z J AB 0.01 µF,16V
C59 VCKYPA1HF223Z J AB 0.022 µF,50V
C60 VCKYPA1HB101K J AA 100 pF,50V
C70 VCKYPA1HB102K J AA 0.001 µF,50V
C71 VCKYPA1HF223Z J AB 0.022 µF,50V
C72 VCKYPA1HB102K J AA 0.001 µF,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 VCKYPA1HF103Z J AB 0.01 µF,16V
C123 RC-GZA227AF1A J AB 220 µF,10V,Electrolytic
C151,152 VCQYKA1HM393K J AB 0.039 µF,50V,Mylar
C215,216 VCQYKA1HM273K J AB 0.027 µF,50V,Mylar
C217,218 VCKYPA1HB272K J AA 0.0027 µF,50V
C219,220 VCQYKA1HM683K J AB 0.068 µF,50V,Mylar
C221,222 VCKYPA1HB102K J AA 0.001 µF,50V
C223,224 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C225 RC-GZA227AF1E J AB 220 µF,25V,Electrolytic
C226 VCKYPA1HF223Z J AB 0.022 µF,50V
C227 RC-GZA478AF1E J 4700 µF,25V,Electrolytic
C228 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C229,230 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic

– 1 –

QTCD161/141

NO. PARTS CODE

C231,232 VCQYKA1HM104K J AB 0.1 µF,50V,Mylar
C233,234 RC-GZA477AF1A J AC 470 µF,10V,Electrolytic
C252 VCKYPA1HF223Z J AB 0.022 µF,50V
C301 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C302 VCKYPA1HF473Z J AB 0.047 µF,50V
C351 VCQYKA1HM222K J AA 0.0022 µF,50V,Mylar
C352 RC-GZA227AF1A J AB 220 µF,10V,Electrolytic
C353 VCQYKA1HM562K J AA 0.0056 µF,50V,Mylar
C354 VCQYKA1HM223K J AB 0.022 µF,50V,Mylar
C501 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C502 VCKYPA1HF223Z J AB 0.022 µF,50V
C503 RC-GZA106AF1C J AB 10 µF,16V,Electrolytic
C504,505 VCKYPA1HF223Z J AB 0.022 µF,50V
C506 RC-GZA225AF1H J AB 2.2 µF,50V,Electrolytic
C508 VCKYPA1HF223Z J AB 0.022 µF,50V
C509 RC-GZA104AF1H J AB 0.1 µF,50V,Electrolytic
C510 VCTYPA1CU104M J AB 0.1 µF,16V
C511~513 VCKYPA1HF223Z J AB 0.022 µF,50V
C516 VCKYPA1HB101K J AA 100 pF,50V
C519 RC-GZA106AF1C J AB 10 µF,16V,Electrolytic

C520 VCKYPA1HF103Z J AB 0.01 µF,16V
C521 VCKYPA1HB472K J AB 0.0047 µF,50V
C651~654 VCKYPA1HF223Z J AB 0.022 µF,50V
C801 VCKYPA1HF103Z J AB 0.01 µF,16V
C802 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C803 RC-GZA104AF1H J AB 0.1 µF,50V,Electrolytic
C804 VCKYPA1HB102K J AA 0.001 µF,50V
C805,806 VCTYPA1CU333M J AB 0.033 µF,16V
C807 RC-GZA104AF1H J AB 0.1 µF,50V,Electrolytic
C808 VCTYPA1CU683M J AB 0.068 µF,16V
C809 VCTYPA1CU473M J AB 0.047 µF,16V
C810 VCKYPA1HB181K J AA 180 pF,50V
C811 VCTYPA1CU104M J AB 0.1 µF,16V
C812 VCKYPA1HB331K J AA 330 pF,50V
C813 VCTYPA1CU104M J AB 0.1 µF,16V
C814 VCTYPA1CU103M J AE 0.01 µF,16V
C815 VCKYPA1HB472K J AB 0.0047 µF,50V
C816 VCKYPA1HB102K J AA 0.001 µF,50V
C817 RC-GZA474AF1H J AA 0.47 µF,50V,Electrolytic
C818 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C819 RC-GZA476AF1C J AB 47 µF,16V,Electrolytic
C820 VCKYPA1HB332K J AA 0.0033 µF,50V
C821 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C822 VCKYPA1HB221K J AA 220 pF,50V
C830 VCCCPA1HH2R0C J AA 2 pF (CH),50V
C831 VCKYPA1HB272K J AA 0.0027 µF,50V
C832 VCCCPA1HH270J J AA 27 pF (CH),50V
C833 VCKYPA1HB102K J AA 0.001 µF,50V
C834 VCTYPA1CU333M J AB 0.033 µF,16V
C835 RC-GZA104AF1H J AB 0.1 µF,50V,Electrolytic
C837 RC-GZA106AF1C J AB 10 µF,16V,Electrolytic
C838 VCTYPA1CU103M J AE 0.01 µF,16V
C839 VCTYPA1CU104M J AB 0.1 µF,16V
C840 RC-GZA334AF1H J AA 0.33 µF,50V,Electrolytic
C841,842 VCTYPA1CU473M J AB 0.047 µF,16V
C843 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic
C844 RC-GZA337AF1A J AB 330 µF,10V,Electrolytic
C845 RC-GZA475AF1H J AB 4.7 µF,50V,Electrolytic
C846 RC-GZA337AF1A J AB 330 µF,10V,Electrolytic
C847 VCTYPA1CU103M J AE 0.01 µF,16V
C848 RC-GZA105AF1H J AB 1 µF,50V,Electrolytic
C849 VCKYPA1HF223Z J AB 0.022 µF,50V
C850 VCTYPA1CU104M J AB 0.1 µF,16V
C851 VCKYPA1HF223Z J AB 0.022 µF,50V
C867,868 RC-GZA106AF1C J AB 10 µF,16V,Electrolytic
C869,870 VCKYPA1HB222K J AA 0.0022 µF,50V
C873 VCKYPA1HF103Z J AB 0.01 µF,16V
C887 VCKYPA1HF223Z J AB 0.022 µF,50V
C888 VCKYPA1HF103Z J AB 0.01 µF,16V
C890 RC-GZA107AF1A J AB 100 µF,10V,Electrolytic

PRICE

RANK

DESCRIPTION

[QT-CD161 Only]

RESISTORS

R1 VRD-ST2EE220J J AA 22 ohms,1/4W
R2 VRD-ST2CD104J J AA 100 kohm,1/6W
R3 VRD-ST2CD333J J AA 33 kohms,1/6W
R4 VRD-ST2CD100J J AA 10 ohm,1/6W
R5 VRD-ST2CD103J J AA 10 kohm,1/6W
R6 VRD-ST2CD561J J AA 560 ohms,1/6W
R7 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R8 VRD-ST2CD473J J AA 47 kohms,1/6W

NO.

R9 VRD-ST2CD104J J AA 100 kohm,1/6W
R10 VRD-ST2CD683J J AA 68 kohms,1/6W
R11 VRD-ST2CD563J J AA 56 kohms,1/6W
R12 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R13 VRD-ST2CD391J J AA 390 ohms,1/6W
R15 VRD-ST2CD122J J AA 1.2 kohms,1/6W
R16 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R17 VRD-ST2CD103J J AA 10 kohm,1/6W
R18 VRD-ST2CD473J J AA 47 kohms,1/6W
R20 VRD-ST2CD682J J AA 6.8 kohms,1/6W
R24 VRD-ST2CD392J J AA 3.9 kohms,1/6W
R25 VRD-ST2CD333J J AA 33 kohms,1/6W
R29 VRD-ST2CD122J J AA 1.2 kohms,1/6W
R30 VRD-ST2CD153J J AA 15 kohms,1/6W
R35,36 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R37,38 VRD-ST2CD682J J AA 6.8 kohms,1/6W
R39 VRD-ST2CD103J J AA 10 kohm,1/6W
R42 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R43 VRD-ST2CD473J J AA 47 kohms,1/6W
R44 VRD-ST2EE181J J AA 180 ohms,1/4W
R45 VRD-ST2EE221J J AA 220 ohms,1/4W
R46~48 VRD-ST2CD563J J AA 56 kohms,1/6W
R50~52 VRD-ST2CD102J J AA 1 kohm,1/6W
R56 VRD-ST2CD470J J AA 47 ohms,1/6W
R70 VRD-ST2CD223J J AA 22 kohms,1/6W
R71 VRD-ST2CD682J J AA 6.8 kohms,1/6W
R72 VRD-ST2CD102J J AA 1 kohm,1/6W
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
R151,152 VRD-ST2CD223J J AA 22 kohms,1/6W
R153,154 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R219,220 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R221,222 VRD-ST2CD102J J AA 1 kohm,1/6W
R223,224 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R225 VRD-ST2CD104J J AA 100 kohm,1/6W
R227,228 VRD-ST2EE121J J AA 120 ohms,1/4W

R230 VRD-ST2EE2R7J J AA 2.7 ohms,1/4W
R251 VRD-ST2CD103J J AA 10 kohm,1/6W
R252 VRD-ST2CD223J J AA 22 kohms,1/6W
R253 VRD-ST2CD182J J AA 1.8 kohms,1/6W
R254 VRD-ST2CD103J J AA 10 kohm,1/6W
R255 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R256 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R351 VRD-ST2EE331J J AA 330 ohms,1/4W
R352 VRD-ST2EE151J J AA 150 ohms,1/4W
R353 VRD-ST2EE473J J AA 47 kohms,1/4W
R354 VRD-ST2EE100J J AA 10 ohm,1/4W
R455,456 VRD-ST2CD153J J AA 15 kohms,1/6W
R457,458 VRD-ST2CD122J J AA 1.2 kohms,1/6W
R501 VRD-ST2EE151J J AA 150 ohms,1/4W
R502 VRD-ST2CD272J J AA 2.7 kohms,1/6W
R503 VRD-ST2CD182J J AA 1.8 kohms,1/6W
R504 VRD-ST2CD104J J AA 100 kohm,1/6W
R505 VRD-ST2CD562J J AA 5.6 kohms,1/6W
R506 VRD-ST2CD272J J AA 2.7 kohms,1/6W
R507 VRD-ST2CD102J J AA 1 kohm,1/6W
R508 VRD-ST2CD563J J AA 56 kohms,1/6W
R509,510 VRD-ST2CD102J J AA 1 kohm,1/6W
R511~513 VRD-ST2CD561J J AA 560 ohms,1/6W
R517,518 VRD-ST2CD103J J AA 10 kohm,1/6W
R519 VRD-ST2CD561J J AA 560 ohms,1/6W
R520~522 VRD-ST2CD102J J AA 1 kohm,1/6W
R523 VRD-ST2CD153J J AA 15 kohms,1/6W
R524 VRD-ST2CD563J J AA 56 kohms,1/6W
R526~528 VRD-ST2CD103J J AA 10 kohm,1/6W
R530,531 VRD-ST2CD153J J AA 15 kohms,1/6W
R532 VRD-ST2CD102J J AA 1 kohm,1/6W [QT-CD161 Only]
R533~541 VRD-ST2CD102J J AA 1 kohm,1/6W
R542 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R543 VRD-ST2CD682J J AA 6.8 kohms,1/6W
R544 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R545 VRD-ST2CD562J J AA 5.6 kohms,1/6W

PRICE

RANK

DESCRIPTIONPARTS CODE

[QT-CD161 Only]

– 2 –

QT-CD161/141

PARTS CODE NO. PARTS CODE

R546 VRD-ST2CD153J J AA 15 kohms,1/6W
R547 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R548 VRD-ST2EE470J J AA 47 ohms,1/4W [QT-CD161 Only]
R549,550 VRD-ST2CD153J J AA 15 kohms,1/6W
R552 VRD-ST2CD102J J AA 1 kohm,1/6W
R801 VRD-ST2CD102J J AA 1 kohm,1/6W
R802 VRD-ST2CD104J J AA 100 kohm,1/6W
R803 VRD-ST2CD153J J AA 15 kohms,1/6W
R804 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R805 VRD-ST2CD682J J AA 6.8 kohms,1/6W
R806 VRD-ST2CD101J J AA 100 ohm,1/6W
R807 VRD-ST2CD102J J AA 1 kohm,1/6W
R808 VRD-ST2CD123J J AA 12 kohms,1/6W
R809 VRD-ST2CD273J J AA 27 kohms,1/6W
R810 VRD-ST2CD823J J AA 82 kohms,1/6W
R811 VRD-ST2CD332J J AA 3.3 kohms,1/6W
R812 VRD-ST2CD153J J AA 15 kohms,1/6W
R813 VRD-ST2CD333J J AA 33 kohms,1/6W
R814 VRD-ST2CD103J J AA 10 kohm,1/6W
R815 VRD-ST2CD473J J AA 47 kohms,1/6W
R816 VRD-ST2CD152J J AA 1.5 kohms,1/6W
R817 VRD-ST2CD823J J AA 82 kohms,1/6W
R819 VRD-ST2CD393J J AA 39 kohms,1/6W
R820 VRD-ST2CD103J J AA 10 kohm,1/6W
R821 VRD-ST2CD563J J AA 56 kohms,1/6W
R822 VRD-ST2CD682J J AA 6.8 kohms,1/6W
R823 VRD-ST2CD122J J AA 1.2 kohms,1/6W
R824 VRD-ST2CD103J J AA 10 kohm,1/6W
R825 VRD-ST2CD122J J AA 1.2 kohms,1/6W
R826,827 VRD-ST2CD224J J AA 220 kohms,1/6W
R828~831 VRD-ST2CD102J J AA 1 kohm,1/6W
R832 VRD-ST2CD563J J AA 56 kohms,1/6W
R833 VRD-ST2CD562J J AA 5.6 kohms,1/6W
R834 VRD-ST2CD102J J AA 1 kohm,1/6W
R835 VRD-ST2CD471J J AA 470 ohms,1/6W
R836,837 VRD-ST2CD473J J AA 47 kohms,1/6W
R838 VRD-ST2CD333J J AA 33 kohms,1/6W
R839,840 VRD-ST2CD223J J AA 22 kohms,1/6W
R842 VRD-ST2EE220J J AA 22 ohms,1/4W
R849 VRD-ST2CD104J J AA 100 kohm,1/6W
R856 VRD-ST2CD122J J AA 1.2 kohms,1/6W
R857 VRD-ST2CD273J J AA 27 kohms,1/6W
R858 VRD-ST2CD681J J AA 680 ohms,1/6W
R860 VRD-ST2CD102J J AA 1 kohm,1/6W
R871 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R873,874 VRD-ST2CD101J J AA 100 ohm,1/6W
R875,876 VRD-ST2CD103J J AA 10 kohm,1/6W
R880 VRD-ST2CD101J J AA 100 ohm,1/6W

PRICE

RANK

DESCRIPTIONNO.

OTHER CIRCUITRY PARTS

BI801/CNS801 QCNWN0113SJZZ J AF Connector Ass’y,8Pin
BI802/CNS802 QCNWN0114SJZZ J AD Connector Ass’y,5Pin
BI803/CNS803 QCNWN0115SJZZ J AE Connector Ass’y,6Pin
CNP101 QCNCW001DSJZZ J AC Socket,4Pin
CNP201 QCNCW001CSJZZ J AC Socket,3Pin
CNP602 QCNCW002CSJZZ J AD Socket,3Pin
CNS101 ———— –– Connector Ass’y,4Pin

CNS201 QCNWN0001SJZZ J AD Connector Ass’y,3Pin
CNS602 QCNWN0132SJZZ J AE Connector Ass’y,3Pin
FW201 QCNWN0133SJZZ J AE Flat Wire,5Pin
FW202 QCNWN0140SJZZ J AE Flat Wire,3Pin [QT-CD161 Only]
FW203 QCNWN0144SJZZ J Flat Wire,8Pin
FW501 QCNWN0134SJZZ J AE Flat Wire,3Pin
FW601 QCNWN0089SJZZ J AG Flat Wire,2Pin
J39 RCORF0001SJZZ J AC Core
J100 RCORF0001SJZZ J AC Core
J201 QJAKM0007AWZZ J AF Jack,Headphones

LCD501 RV-LX0005SJZZ J AU LCD
M601 9GD192112343W J AX Motor with Pulley [Tape]
M701 RMOTV0408AFM3 J AN Motor with Chassis [Spindle]
M702 RMOTV0409AFM1 J AN Motor with Gear [Sled]
RX501 VHLN61V380A-1 J AN Remote Sensor

! SO601 QSOCA0001SJZZ J AE AC Socket

SP501,502 VSP0010PBT98S J AL Speaker,Woofer
SW102 QSW-S0001SJZZ J AD Switch,Slide Type

SW201 QSW-S0008SJZZ J AG Switch,Slide Type

(Not Replacement Item)

[QT-CD161 Only]

[QT-CD161 Only]

[Record/Playback]
[Function/Power]

PRICE

RANK

SW202 QSW-P0001SJZZ J AD Switch,Push Type [X-Bass]
SW501 QSW-K0001SJZZ J AC Switch,Key Type [Tuner Up]
SW502 QSW-K0001SJZZ J AC Switch,Key Type [Tuner Down]
SW503 QSW-K0001SJZZ J AC Switch,Key Type [Band]
SW504 QSW-K0001SJZZ J AC Switch,Key Type [Memory]
SW505 QSW-K0001SJZZ J AC Switch,Key Type [Preset Down]
SW506 QSW-K0001SJZZ J AC Switch,Key Type [Preset Up]
SW507 QSW-F0001SJZZ J AD Switch,Leaf/Skeleton Type

SW601 9GD192112343W J AX Switch,Push Type [Tape Main]
SW702 QSW-F9001AWZZ J AE Switch,Push Type [Pickup In]
W601 QCNWN0101SJZZ J AC Flat,Wire,2Pin

DESCRIPTION

[CD Lid Open/Close]

CD MECHANISM PARTS

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 RCTRH8179AFZZ J BG 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,ø4.5×ø1.5×0.25mm
M701 RMOTV0408AFM3 J AN Motor with Chassis [Spindle]
M702 RMOTV0409AFM1 J AN Motor with Gear [Sled]
SW702 QSW-F9001AWZZ J AE Switch,Push Type [Pickup In]

CABINET PARTS

201 GCABA1029SJM1 J BC Front Cabinet Ass’y [QT-CD161]
201 GCABA1032SJM1 J BA Front Cabinet Ass’y [QT-CD141]
202 GCABC1029SJSA J AV Top Cabinet [QT-CD161]
202 GCABC1029SJSB J AR Top Cabinet [QT-CD141]
203 GCABB1029SJSA J AZ Rear Cabinet [QT-CD161]
203 GCABB1032SJSA J AV Rear Cabinet [QT-CD141]
204 HPNLC1032SJSA J AS Panel,Control [QT-CD161]
204 HPNLC1036SJSA J AK Panel,Control [QT-CD141]
205 HDECQ0022SJSA J AF Decoration Plate [QT-CD161]
205 HDECQ0022SJSB J AE Decoration Plate [QT-CD141]
206 JKNBK0016SJSA J AE Knob,Volume
207 LHLDW1001SJZZ J AD Nylon Band
208 MSPRC0002SJFD J AC Spring,Battery,+/­209 JHNDP1001SJSA J AE Handle [QT-CD141]
209 JHNDP1002SJSB J AM Handle [QT-CD161]
210 QANTR0003SJZZ J AL Rod Antenna
211 MSPRZ0001SJFD J AC Spring,Rod Antenna
212 GFTAB1001SJSA J AD Battery Compartment Lid

212 GFTAB1005SJSB J AH Battery Compartment Lid
213 JKNBK0018SJSA J AC Knob,X-BASS

214 LHLDZ1015SJSA J AF Button,Unit [QT-CD161]
214 LHLDZ1015SJSB J AF Button,Unit [QT-CD141]
215 JKNBK0017SJSA J AC Knob,Function [QT-CD161]
215 JKNBK0017SJSB J AC Knob,Function [QT-CD141]
216 GFTAC1001SJSA J AE Cassette Lid [QT-CD141]
216 GFTAC1001SJSD J AM Cassette Lid [QT-CD161]
217 MSPRD0001SJFD J AC Spring,Cassette Lid
218 JBTN-0001SJSA J AC Button,Pause [QT-CD141]
218 JBTN-0007SJSB J AC Button,Pause [QT-CD161]
219 JBTN-0002SJSA J AC Button,Stop [QT-CD141]
219 JBTN-0008SJSB J AC Button,Stop [QT-CD161]
220 JBTN-0003SJSA J AC Button,FF [QT-CD141]
220 JBTN-0009SJSB J AC Button,FF [QT-CD161]
221 JBTN-0004SJSA J AC Button,REW [QT-CD141]
221 JBTN-0010SJSB J AC Button,REW [QT-CD161]
222 JBTN-0005SJSA J AC Button,Play [QT-CD141]
222 JBTN-0011SJSB J AC Button,Play [QT-CD161]
223 JBTN-0006SJSA J AC Button,Rec [QT-CD141]
223 JBTN-0012SJSB J AC Button,Rec [QT-CD161]
224 LANGK0001SJFW J AC Bracket,Button
225 PGUMS0001SJZZ J AB Leg,Cushion
226 GFTAT1001SJSA J AE CD Lid [QT-CD141]
226 GFTAT1001SJSD J AN CD Lid [QT-CD161]
227 CHLDM1001SJ01 J AG Stabilizer Ass’y
227- 1 ———— –– Stabilizer

227- 2 PMAGF0002AWZZ J AE Magnet
228 MSPRP0001SJFW J AC Lever,Record
230 MSPRC0001SJFN J AC Spring,Battery,-

[QT-CD141]
[QT-CD161]

(Not Replacement Item)

– 3 –

QTCD161/141

NO. PARTS CODE

231 PRDAR0001SJZZ J AD Heat Sink
232 LHLDA1001SJZZ J AC Holder,Bar Antenna
233 CMECB0001SJ01 J AY Tape Mechanism Ass’y
233- 1 9GD192104309 J AR Pinch Roller Arm Ass’y
233- 2 9GD192107039 J AE Belt,RF
233- 3 9GD192109389 J AE Belt,Main
233- 4 9GD62070114 J AL Head,Playback/Record
233- 5 9GD62091010 J AM Head,Erase
233- 6(M601) 9GD192112343W J AX Motor With Pulley [Tape]
233- 7(SW601) 9GD6401011499 J AE Switch,Leaf Type [Tape Main]
234 TSPC-0079SJZZ J AF Label,Specifications [For U.S.A.]
234 TSPC-0080SJZZ J Label,Specifications

235 CGERH0001SJ01 J AF Gear,Damper
236 LHLDZ1016SJZZ J AE Holder,LCD
237 MSPRC0003SJFE J AF Spring,Back Up
240 MSPRD0002SJFD J AC Spring,CD Lid
601 XUBSD30P12000 J AA Screw,ø3×12mm
602 XUBSD30P20000 J AA Screw,ø3×20mm
603 XUBSD30P10000 J AA Screw,ø3×10mm
604 XUBSD25P10000 J AB Screw,ø2.5×10mm
605 XWHSD28-08120 J AB Washer,ø2.8×ø12×0.8mm
606 XUPSD25P08000 J AB Screw,ø2.5×8mm
607 XUBSD30P08000 J AA Screw,ø3×8mm
608 XHBSD20P03000 J AA Screw,ø2×3mm
609 XEBSF30P10000 J AA Screw,ø3×10mm

PRICE

RANK

DESCRIPTION

[Except for U.S.A.]

ACCESSORIES

! QACCU0001SJ00 J AR AC Power Supply Cord

TINSE0023SJZZ J AH Operation Manual

[For U.S.A./Central America]
[QT-CD161]

TINSE0025SJZZ J AP Operation Manual

[For U.S.A./Central America]
[QT-CD141]

TINSZ0037SJZZ J Operation Manual [Except for

U.S.A/Central America]
[QT-CD161]

TINSZ0038SJZZ J Operation Manual [Except for

U.S.A./Central America]

[QT-CD141]
TLABN0053SJZZ J AE Label,Serial No. [QT-CD161]
TLABN0054SJZZ J Label,Serial No. [QT-CD141]
TLABR1041SJZZ J AD Label,Bar Code [QT-CD141]
TLABR1043SJZZ J AE Label,Bar Code [QT-CD161]
TLABZ0026SJZZ J AE Label,Feature [QT-CD161]
TLABZ0027SJZZ J AG Label,Feature [QT-CD141]
RRMCG0015SJSA J AX Remote Control

[QT-CD161 Only]
HTR0211-720010 J Battery Lid,Remote Control

[QT-CD161 Only]

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

PWB-A1~7 DCEK-0004SJ03 J –– Main/Headphones/Terminal/

PWB-A1~6 DCEK-0004SJ06 J –– Main/Terminal/Battery/Battery/

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

Battery/Battery/Switch/Spacer

(Combined Ass'y)[QT-CD161]

Switch/Spacer

(Combined Ass'y)[QT-CD141]

OTHER SERVICE PART

UDSKA0004AFZZ J AZ CD Pickup Lens Cleaner

NO.

PRICE

RANK

DESCRIPTIONPARTS CODE

– 4 –

QT-CD161/141

306

A

701

704

304

701

B

C

D

303

702

301

302

703x2

E

M701

F

305

M702

305x2

G

SW702

H

PWB-B

1

23456

Figure 5 CD MECHANISM EXPLODED VIEW

– 5 –

QT-CD161/141

A

PWB-A3

B

601x2

C

603x2

233 (233-1, 233-2
233-3, 233-4, 233-5,
233-6, 233-7)

D

228

E

CD
MECHANISM

F

G

203

T601

SO601

201

206

608

230

605x3

604x3

PWB-A4

PWB-A5

603

PWB-A2

237

603

PWB-A7

603x2

607x2

603x4

601x4

211

603x4

202

223

224

222

607x2

607

SP501

217

221

IC203

231

602x2

210

220

219

Silicon
Grease

IC202

213

235

218

215

225x2

607

234

LCD501

602x4

SW507

214

603

216

236

603x4

208

240

227

606

603x2

212

607

226

603x6

209

227-2

PWB-A1

L3

227-1

PWB-A6

603x3

603

232

609

205

204

H

SP502

NOTE: The parts of cassette mechanism which are supplied are only the unit and consumable parts.

1

23456

Figure 6 CABINET EXPLODED VIEW

– 6 –

207

QT-CD161/141

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

• Setting position of switches and knobs

Tape Mechanism Control STOP STATE
TUNING LOW
POWER/FUNCTION OFF/TAPE
X-BASS OFF
VOLUME LOW

Polyethylene Bag, Unit
SSAKH0001SJZZ

Packing Case
SPAKC0063SJZZ

AC Power
Supply Cord

FRONT

Energy Star Label
TLABZ0031SISC

Feature Label

Operation Manual
Energy Star Caustion Sheet

TCAUZ0006SJZZ

FRONT

Remote Control

Packing Add., Left/Right
SPAKA0001SJZZ

Bar Code Label

Energy Star Label
TLABZ0032SJZZ

: Not Replacement Item

COPYRIGHT 1999 BY SHARP COPORATION

©

ALL RIGHTS RESERVED.

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

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

Printed in Japan

A9905-1922 NS•HA•C

SC • LAG