Sharp CDC-1-H, CPC-1-H Service manual

SERVICE MANUAL

● Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.

● "DOLBY" and t he double-D symbol are
trademarks of Dolby Laboratories Licensing
Corporation.

● SRS technology Licensed from SRS Labs. SRS technol­ogy holds the following patents: U.S. Patent No.
4,748,669 and U.S. Patent No. 4,841,572.

● SRS, the SRS Logo (●) and the Sound Retrieval System
are registered trademarks of SRS Labs, Inc. in the United
States.

CD-C1H/CP-C1H

No. S3817CDC1H///

CD-C1H

CP-C1H

CD-C1H and CP-C1H constitute CD-C1H.

• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.

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

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

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

OPERATION MANUAL..................................................................................................................................................... 7

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

REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................. 11

ADJUSTMENT................................................................................................................................................................ 12

TEST MODE ....................................................................................................................................................................14

NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 20

TYPE OF TRANSISTOR AND LED ................................................................................................................................ 20

BLOCK DIAGRAM .......................................................................................................................................................... 21

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD.............................................................................................24

WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 46

TROUBLESHOOTING .................................................................................................................................................... 47

FUNCTION TABLE OF IC .............................................................................................................................................. 50

FL SEGMENT ..................................................................................................................................................................60

PARTS GUIDE/EXPLODED VIEW

SHARP CORPORATION

CONTENTS

– 1 –

Page

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

CD-C1H/CP-C1H

SAFETY PRECAUTION FOR SERVICE MANUAL

WARNINGS

THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER
COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS
IMPORTANT THAT THE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES
AGAINST EXPOSURE TO THE LASER BEAM.

1-WHEN THE CABINET IS REMOVED, THE POWER IS TURNED ON WITDOUT A COMPACT DISC IN POSITION AND THE

PICK-UP IS ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL SECONDS TO DETECT A DISC. DO NOT
LOOK INTO THE PICK-UP LENS.

2-THE LASER POWER OUTPUT OF THE PICK-UP UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY

PRE-SET BEFORE SHIPMENT.

DO NOT ATTEMPT TO RE-ADJUST THE LASER PICK-UP UNIT DURING REPLACEMENT OR SERVICING.
3-UNDER NO CIRCUMSTANCES STARE INTO THE PICK-UP LENS AT ANY TIME.
4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE

SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

● CAUTION

Use of controls or adjustments or performance of
procedures other than those specified herein may
result in hazardous radiation exposure.

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

LASER KLASSE 1
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT

Laser Diode Properties

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

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

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

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

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

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

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

VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA KUIN
TÄSSÄ
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA
ALTISTAA KÄYTTÄJÄN TURVALLISUUSLUOKAN 1
YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.

VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT
ÄN I DENNA BRUKSANVISNING SPECIFICERAS. KAN
ANVÄNDAREN UTSÄTTAS FÖR OSYNLIG
LASERSTRÅLNING, SOM ÖVERSKRIDER GRÄNSEN FÖR
LASERKLASS 1.

VARO ! Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen.
VARNING! Osynlig laserstralning när denna del är öppnad och spärren är urkopplad. Betrakta ej strälen.

– 2 –

CD-C1H

● General

Power source: AC 230 V, 50 Hz
Power consumption: 500 W
Dimensions: Width; 270 mm (10-5/8")

Height; 356 mm (14-3/16")
Depth; 355 mm (14")

Weight: 10.5 kg (23.1 lbs.)

● Amplifier section

Output power: PMPO; 880 W (total)

MPO; 440 W (220 W + 220 W)
(DIN 45 324)
RMS; 300 W (150 W + 150 W)
(DIN 45 324)

Input terminals: Video/Auxiliary (audio signal);

500 mV/47 kohms

Output terminals: Speakers; 6 ohms

Headphones; 16-50 ohms
(recommended; 32 ohms)
CD digital output (optical)

● Compact disc player section

Type: 3-disc multi-play compact disc

player

Signal readout: Non-contact, 3-beam semi-

conductor laser pickup

Rotational speed: 200 - 500 rpm CLV, Approx.
Error correction: CIRC (Cross Interleave Reed-So-

lomon Code)

Quantization: 16-bit linear
Filter: 8-times oversampling digital filter
D/A converter: 1-bit D/A converter
Frequency response: 20 - 20,000 Hz
Dynamic range: 90 dB (1 kHz)
Wow and flutter: Unmeasurable

(less than 0.001% W. peak)

● Tuner section

Frequency range: FM; 87.5 - 108 MHz

MW; 522 - 1,620 kHz
LW; 153 - 281 kHz

● Cassette deck section

Type: Compact cassette tape
Frequency response: 50 - 14,000 Hz (Normal tape)

50 - 15,000 Hz (CrO

2

tape)

Motor: DC motor with electronic gov-

ernor × 1

Signal/noise ratio: 55 dB (TAPE 1, playback, Dolby

NR off)
50 dB (TAPE 2, recording/play­back, Dolby NR off)
Dolby NR effect; 10 dB
(at over 5 kHz)

Bias and erasure
system: AC
Tape speed: 4.76 cm/sec. (1-7/8 ips.)
Wow and flutter: 0.2 % (DIN 45 511, playback)
Heads: TAPE-1: Playback × 1

TAPE-2: Record/playback × 1
Erase × 1

● Speaker section

Type: 3-way type [20 cm (7-7/8")

woofer, 8 cm (3-3/16") tweeter
and super tweeter]

Rated input power: 150 W
Maximum input
power: 300 W
Impedance: 6 ohms
Dimensions: Width; 295 mm (11-5/8")

Height; 361 mm (14-1/4")
Depth; 378 mm (14-15/16")

Weight: 6.7 kg (14.8 lbs.)/each

CD-C1H/CP-C1H

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

SPECIFICATIONS

CP-C1H

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

– 3 –

CD-C1H/CP-C1H

12

3

456 7

8
9

10

15
16
17
18
19

11

12

13

14

20 21 22

23

24 25 26 27

28

29

30

31
32
33

35

37

3936

34

4038

41 42

43 44

CD-C1H

■ Front panel

11.

Disc 1 Select/Direct Play Button

12.

Disc 1 Open/Close Button

13.

Disc 2 Select/Direct Play Button

14.

Disc 2 Open/Close Button

15.

Disc 3 Select/Direct Play Button

16.

Disc 3 Open/Close Button

17.

Disc Trays

18.

Function Selector Buttons

19.

Remote Control Sensor

10.

On/Stand-by Button

11.

Programme Type/Traffic Information Search
Button

12.

EON Button

13.

ASPM Button

14.

Display Mode Selector Button

15.

Volume Control

16.

Extra Bass Button

17.

3D Surround Mode Button

18.

3D Surround Pass Button

19.

Equalizer Selector/Demo Mode Button

NAMES OF PARTS

20.

(CD) Random Play Indicator

21.

(CD/TUNER) Memory Indicator

22.

(TAPE 2) Direction Indicators

23.

(CD) Pause Indicator

24.

SRS Indicator

25.

Extra Bass Indicator

26.

Timer Play Indicator

27.

Timer Record Indicator

28.

Sleep Indicator

29.

(TAPE) Dolby NR Indicator

30.

Traffic Announcement Indicator

31.

RDS Indicator

32.

EON Indicator

33.

Programme Type Indicator

34.

Traffic Programme Indicator

35.

Traffic Information Indicator

36.

(TAPE) Reverse Mode Indicator

37.

(TAPE) Record Indicator

38.

(CD) Play Indicator

39.

(CD) Repeat Indicator

40.

(CD) Disc Number Indicators

41.

Spectrum Analyzer/Volume Level Indicator

42.

(CD) Music Schedule Indicators

43.

FM Stereo Indicator

44.

FM Stereo Mode Indicator

– 4 –

11.

(Continued)

12

910

678

3

45

11 12 13

14

15 16

17

19

20

18

6

1

2

3

4

5

9

10

11

8

7

12.

13.

14.

15.
3
3

16.

17.
3
3

18.
3

19.

10.

11.

12.

13.

14.

15.

16.

17.

18.

(CD) Clear Button
Memory/Set Button
(TAPE) Reverse Mode Button
(TAPE) Reverse Play Button
(TUNER) Tuning Down Button
(CD) Track Down/Review Button
(TAPE) Fast Wind Button
Jog Dial
(TUNER) Tuning Up Button
(CD) Track Up/Cue Button
(TAPE) Fast Wind Button
(CD) Play/Repeat Button
(TAPE) Forward Play Button
(TAPE) Record Pause Button
(TAPE) Editing Speed Selector Buttons
Headphone Socket
Clock Button
Timer Button
Sleep Button
(CD) Pause Button
(CD/TAPE) Stop Button
(TAPE) Dolby NR Button
Beat Cancel Button

CD-C1H/CP-C1H

19.

(TAPE 1) Cassette Compartment

20.

(TAPE 2) Cassette Compartment

■ Rear panel

11.

Video/Auxiliary (Audio Signal) Input Sockets

12.

CD Digital Output Socket

13.

AC Power Lead

14.

FM 75 Ohms Aerial Socket

15.

MW/LW Loop Aerial Input Socket

16.

Speaker Terminals

CP-C1H

■ Speaker section

17.

Tweeter

18.

Woofer

19.

Super Tweeter

10.

Bass Reflex Duct

11.

Speaker Terminals

– 5 –

CD-C1H/CP-C1H

CD-C1H

■ Remote control

11.

Remote Control Transmitter LED

● CD control section

12.

Track Down/Review Button

13.

Track Up/Cue Button

14.

CD Select/Direct Play Buttons

15.

Play/Repeat Button

16.

Stop Button

17.

Memory Button

18.

Clear Button

19.

Random Button

10.

Pause Button

● Tuner control section

11.

Programme Type/Traffic Information Search Button

12.

Preset Up/Down Buttons

● Tape control section

13.

Reverse Play Button

14.

Record Pause Button

15.

Stop Button

16.

Forward Play Button

17.

Fast Wind Buttons

● Common section

18.

3D Surround Pass Button

19.

3D Surround Mode Button

20.

Function Selector Buttons

21.

Balance Buttons

22.

On/Stand-by Button

23.

Dimmer Button

24.

Equalizer Mode Button

25.

Extra Bass Button

26.

Volume Up/Down Buttons

2
3

13
14

20
21

22
23

7

1

89

11

18

4

5
6

10

12

15

16

17

19

24
25

26

– 6 –

OPERATION MANUAL

SETTING THE CLOCK

1

Press the ON/STAND-BY button to enter the stand-by mode.

2

Press the CLOCK button.

3

Within 5 seconds, press the MEMORY/SET button.

4

Turn the jog dial to select the time display mode.

0:00 AM 12:000:00 AM

3

4

5

6

7

8

9

MEMORY/

SET

ON/STAND-

BY

CLOCK

"0:00" → The 24-hour dis play will appea r.

(0:00 - 23:59)

"AM 12:00" → The 12-hour display will ap pear.

(AM or PM 12:00 - 11:59)

"AM 0:00" → The 12-hour display will appear.

(AM or PM 0:00 - 11:59)

● Note that this can only be set when the unit is first installed

or it has been reset.

5

Press the MEMORY/SET button.

6

Adjust the hour by turning the jog dial.

● Turn the dial one click to advance the time by 1 hour.

Keep turning the dial to advance continuously.

● When the 12-hour display is selected, "AM" will change auto-

matically to "PM".

7

Press the MEMORY/SET button.

8

Adjust the minutes by turning the jog dial.

● Turn the dial one click to advance the time by 1 minute.

Keep turning the dial to advance continuously.

● The hour setting will not advance even if minutes advance

from "59" to "00".

9

Press the MEMORY/SET button.

● The clock starts operating from "0" seconds. (Seconds are

not displayed.)

Note:

● In the event of a power failure or when the AC power lead

is disconnected, the clock display will go out.

When the AC power supply is restored, the clock display will

flash on and off to indicate the time when the power failure

occurred or when the AC power lead was disconnected.

If this happens, follow the procedure below to change the

clock time.

To change the clock time:

When the unit is in the stand-by mode:

① Press the MEMORY/SET button.

② Perform steps 6 - 9 above.

When the unit is on:

① Press the CLOCK button.

② Within 5 seconds, press the MEMORY/SET button.

③ Perform steps 6 - 9 above.

To see the time display:

Press the CLOCK button.

● The time display will appear for about 5 seconds.

To change the time display mode:

① Perform steps 1 - 2 in the section "RESETTING THE MICRO-

COMPUTER", on page 31 of Operation Manual.

② Perform steps 1 - 9 above.

In this example, the clock is set for the 24-hour

(0:00) system.

Jog dial

2

PREPARATION FOR USE

■Remote control

Notes concerning use:

● Replace the batteries if control distance decreases or oper-

ation 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.

15

15

0.2 m - 6 m

(8" - 20')

RESETTING THE MICROCOMPUTER

Reset the microcomputer under the following conditions:

● To erase all of the stored memory contents (clock and timer

settings, and tuner and CD presets).

● If the display is not correct.

● If the operation is not correct.

1

Press the ON/STAND-BY button to enter the stand-by mode.

2 Press and hold down the button, the EQ/DEMO button

and the ON/STAND-BY button all at the same time. Hold

them for at least 1 second.

Caution:

● The operation explained above will erase all data stored in

memory including clock and timer settings, and tuner and CD

presets.

1,2

2

WHEN "PROTECT" APPEARS

The unit will be overheated when "PROTECT" appears in the

display.

Due to the problem in speaker circuit the unit will be switched

to the stand-by mode automatically.

In this case take the following corrective actions.

1 Unplug the AC power plug from the AC socket.

2 Make sure that the unit vent is not blocked.

3

Make sure that the speaker wires have been correctly con-

nected to the speaker terminals.

4 After checking items 2 and 3 above, wait for 2 or 3 hours

before trying to use the unit.

5 Reconnect the AC power lead.

Note:

● If "PROTECT" appears again during use, please unplug the

AC power plug, and contact the SHARP authorised service

centre.

CD-C1H/CP-C1H

– 7 –

CD-C1H/CP-C1H

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 be
removed when disassembling the unit. After servicing
the unit, be sure to rearrange the leads where they were
before disassembling.

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

CD-C1H

REMOVAL PROCEDURESTEP

1 Top Cabinet 1. Screw ................ (A1) x4 8-1

2 Side Panel 1. Screw ................ (B1) x6 8-1

(Left/Right) 2. Screw ............... (B2) x4

3

CD Changer Block

4 Tuner PWB 1. Screw ................ (D1) x6 9-1

5 Main PWB 1. Socket ............... (E1) x3 9-1

6 Front Panel 1. Flat Wire.............(F1) x2 9-1

7 Display PWB 1. Knob .................. (G1) x2 9-2

8 CD Switch PWB 1. Screw ............... (H1) x3 9-2

9

Headphones PWB

10 Tape Mechanism 1. Open the cassette holder 9-2

11 Power Amp. PWB 1. Socket ................ (L1) x1 9-3

12 Power Supply PWB 1. Screw ............... (M1) x1 9-3

13 CD Digital PWB 1. Screw ............... (N1) x1 9-4

14 CD Changer Holder 1. Screw ................ (P1) x3 9-4

15 CD Servo PWB 1. Socket ............... (Q1) x6 9-5

(Note) 2. Screw ................ (Q2) x3

16 Tray Switch PWB 1. Screw ............... (R1) x1 9-5

17 CD Mechanism 1. Screw ................ (S1) x2 10-1

1. Flat cable........... (C1) x1 8-2

2. Screw ................ (C2) x2

3. Screw ................ (C3) x2

2. Screw ................ (D2) x1

3. Screw ................ (D3) x4

2. Flat Cable.......... (E2) x1

3. Flat Wire ............ (E3) x2

4. Screw ................ (E4) x2

5. Screw ................ (E5) x2

2. Screw .................(F2) x1

3. Screw .................(F3) x2

2. Nut.................... (G2) x1

3. Screw ............. (G3) x12

1. Screw ................ (J1) x1 9-2

2. Screw ................ (K1) x6

2. Screw .................(L2) x4

3. Screw .................(L3) x2

2. Screw ............... (M2) x4

2. Top Bord ........... (S2) x1

3. Disc Holder........ (S3) x1

4. Disc Tray ........... (S4) x3

5. Screw ................ (S5) x1

6. Mechanism Holder ........

Guide................. (S6) x1

7. Screw ................ (S7) x2

8. Mechanism Holder ........

Bracket .............. (S8) x1

9.

Mechanism Holder

10. Screw ............ (S10) x4

(S9) x1

Note : After removing the connector for the optical pickup

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

FIGURE

STEP

Side Panel
(Right)

(B1)x3
Ø3x10mm

(B2)x4
Ø3x10mm

Front Panel

CD Servo
PWB

(C1)x1

Main
PWB

– 8 –

CP-CH

REMOVAL

1 Front Panel 1. Net ....................... (A1) x1 10-2

2 Speaker 1. Screw ................... (B1) x2 10-3

PROCEDURE

2. Net holder ............ (A2) x4

3. Screw ................... (A3) x4

4. Screw ................... (A4) x2

2. Screw ................... (B2) x2

3. Bracket................. (B3) x1

4. Screw ................... (B4) x2

5. Screw ................... (B5) x4

FIGURE

CD-C1H

(A1)x2
Ø3x12mm

Rear Panel

Top Cabinet

Front Panel

Side Panel
(Left)

(A1)x2
Ø3x12mm

(B1)x3
Ø3x10mm

Figure 8-1

(C3)x2
Ø3x12mm

CD Changer Block

CD Changer
Holder

(C2)x2
Ø3x10mm

Rear
Panel

Figure 8-2

CD-C1H/CP-C1H

Power
PWB

(D2)x1

Ø3x10mm

Rear
Panel

(D1)x6
Ø3x10mm

(F1)x1

(E4)x1
Ø3x10mm

(E1)x1

(E5)x1
Ø3x8mm

(E2)x1

Power
AMP. PWB

Figure 9-1

(E3)x2

Pull

(E1)x2

Display PWB

(D3)x4
Ø3x10mm

Front Panel

Main PWB

(E4)x1
Ø3x10mm

(E5)x1
Ø3x8mm

Tuner
PWB

(F1)x1

Lug Wire
(F2)x1
Ø3x6mm

(F3)x2
Ø3x10mm

(M1)x1
Ø3x10mm

(M2)x4
Ø4x8mm

Power
Supply
PWB

(L3)x1
Ø3x6mm

CD Changer Block

Figure 9-3

(P1)x2
ø3x10mm

(L3)x1
Ø3x6mm

(L1)x1

(N1)x1
ø3x10mm

(L2)x4
Ø3x10mm

Power AMP.
PWB

Front Panel

(H1)x3
Ø3x10mm

(G3)x12
Ø3x10mm

Tape Mechanism

CD Switch PWB

(K1)x6
Ø3x10mm

Figure 9-2

Washer

Lug Wire

(G1)x2

(G2)x1

Display

PWB
Headphones
PWB

Open

(J1)x1
Ø3x8mm

Cassette
Holder (Left/Right)

CD Changer
Block

Tray
Switch
PWB

(R1)x1
ø2x7mm

(P1)x1
ø3x10mm

CD Digital PWB

CD Servo PWB

CD Changer Holder

Figure 9-4

CD Servo PWB

(Q1)x3

(Q2)x3
ø3 x10mm

(Q1)x3

– 9 –

Figure 9-5

CD-C1H/CP-C1H

(S1) x2
ø2 x7mm

(S3) x1

Push

.

Push the pawl of disc tray
with a proper screwdriver.

Back surface

Pawl

Pawl

Disc Tray 3

(After drawing out the disc trays 1, 2, and 3, turn
over the mechanism unit, push two pawls, and
remove successively the three disc trays from the
mechanism unit, starting with the disc tray 3.
Thereby the CD mechanism shown in the right
figure can be removed.)

Disc Tray 1

Disc Tray 2

(S7) x2
ø2 x6mm

(S4) x3

Spring

(S2) x1

(S8) x1

Normal state

Disc Tray 2

Disc Tray 3

(S5) x1

ø2.6 x12mm

Disc Tray 1

(S6) x1

(S9) x1

CD
Mechanism

(S10) x4
ø2.6 x10mm

Turn clockwise the
main cam to raise the
CD mechanism up to
the uppermost position.

Press in turns the arrow

1

parts, starting with the

2

uppermost one, to

3

withdraw the disc trays

Pawl

CP-C1H

ø4x25mm

(A2)x4

(A1)x1

ø4x20mm

(A3)x4

(A4)x2

Figure 10-1

(B3)x1

Driver

Tweeter

Super

Tweeter

(B4)x2

ø3x10mm

Front

Speaker

Front Panel

Figure 10-2 Figure 10-3

Box

(B1)x2

ø3x10mm

Panel

(B5)x4

ø4x12mm

Woofer

(B2)x2

ø3x10mm

Speaker

Box

– 10 –

Tray Motor

Main Cam
Motor

Belt
(B1) x1

Belt
(B1) x1

(B2) x2
ø2.6 x4mm

(B2) x2
ø2.6 x4mm

REMOVING AND REINSTALLING THE MAIN PARTS

(When CD is in playback state.)

CD Disc

Disc Holder

Turn the main cam clockwise,
and raise the CD mechanism
and disc holder up to
uppermost position.

CD Changer
Block

Press in turns the arrow
parts, starting with the
uppermost one, to
withdraw the disc trays

CD Disc

Disc Holder

CD Mechanism

(When CD exists in the tray)

Disc Tray 1

Disc Tray 2

Disc Tray 3

Turn the main cam clockwise,
and raise the CD mechanism
and disc holder up to
uppermost position.

CD Changer
Block

1
2
3

CD MECHANISM SECTION

For the procedure to remove the CD mechanism from the
main unit, refer to Disassembling Procedure, Steps 1~8, and
13~17. (page 8).

How to Remove the optical pickup
(See Fig. 11-1.)

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

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

3. Remove the optical pickup.

Note:
After disconnecting the optical pickup connector wrap the
front end of connector in conductive aluminum foil so as to
prevent damage to the optical pickup by static electricity.

How to Remove the tray motor/main cam motor
(See Fig. 11-2.)

1. Remove the CD changer section by the method described
in page 8, and disassemble as shown in the figure.

2. Remove the belts (B1)x 2 pcs., from the motor side.

3. Remove the screws (B2)x 4 pcs.

4. Remove the tray motor and main cam motor.

Stop Washer
(A3) x1

Pickup

CD
Mechanism

(A1) x2
ø2.6 x5mm

Figure 11-1

CD-C1H/CP-C1H

Shaft
(A2) x1

Gear
(A4) x1

How to remove the CD disc
(When CD is in playback state) (See Fig. 11-3.)

1. Remove the Top cabinet .

2. Disassemble as shown in the figure so that the CD disc of
CD changer becomes visible.

3. Remove the CD disc as shown in the figure.

How to remove the CD disc
(When CD exists in the tray) (See Fig. 11-4.)

1. Remove the Top cabinet.

2. Disassemble as shown in the figure so that the CD disc of
CD changer can be taken out.

3. Remove the CD disc from the tray as shown in the figure.

Figure 11-2

Figure 11-3

Figure 11-4

– 11 –

CD-C1H/CP-C1H

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter

Play: TW-2412 Tape 1: Over 80 g

• Torque Check

Torque Meter Specified Value

Tape 1

Play: TW-2111 30 to 60 g. cm 30 to 60 g.cm
Fast forward: TW-2231 60 to 120 g.cm 60 to 120 g.cm
Rewind: TW-2231 60 to 120 g.cm 60 to 120 g.cm

• Tape Speed

Test Tape

Normal MTT-111 VRM01 3,000 ± Speaker
speed 30 Hz terminal

Adjusting

Point

TAPE SECTION

Position of each switch or control
Volume MAX
3D Surround Mode Button PASS
Pre-programmed Equalizer FLAT
Extra Bass OFF
Function TAPE
Dolby NR switch OFF
X-Bass OFF

Specified Value

Tape 2: Over 80 g

Specified

Value

Tape 2

Instrument

Connection

• Bias Frequency

Adjusting Point Specified Value

— 98 ± 10 kHz CNP102 1

• Bias Current

Adjusting Point Specified Value

L: VR101
R: VR102 CrO

Normal: 45 ± 10 mV

2: 65 ± 15 mV R: TP490 2

• Tape 1 Playback Amplifier Sensitivity

Test Tape

MTT-150

Adjusting

Point

L: VRD01 L: TP451 3
R: VRD02 R: TP451 1

Specified Value

Normal: 300 mV

• Tape 2 Playback Amplifier Sensitivity

Test Tape

MTT-150

Adjusting

Point

L: VRD03 L: TP451 3
R: VRD04 R: TP451 1

Specified Value

Normal: 300 mV

• Record/Playback Sensitivity

Test Tape

UR-127

Adjusting

Point

Record level
control

L: VR151
R: VR152

Specified Value

215 mV

215 mV

Instrument

Connection

Instrument

Connection

L: TP490 4

Instrument

Connection

Instrument

Connection

Instrument

Connection

Input: VIDEO
Output:
L: TP451 3
R: TP451 1

RECORD
MODE

UNIT

TP490 2 PIN OR 4 PIN

TP490 3 PIN

GND

Figure 12-1 BIAS CURRENT

R-CH BIAS
CURRENT

VR102

ELECTRONIC
VOLTMETER

VR101

TP490
1234

CNP102

1234567

CNP101

321

MAIN PWB

L-CH BIAS
CURRENT

R-CH REC/

PLAY SENS.

VRD02

VR152

TAPE1 PLAY

R-CH SENS.

VR151

L-CH REC/

PLAY SENS.

VRD04

TAPE2 PLAY
R-CH SENS.

VRD03

VRD01

TAPE1 PLAY

L-CH SENS.

TAPE2 PLAY

L-CH SENS.

TP451

123

WTM1

VRM01

TAPE SPEED

WTM2

Figure 12-2 ADJUSTMENT POINTS

– 12 –

CFW2

CNP851

CD-C1H/CP-C1H

TUNER SECTION

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

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage

IF 450 kHz 1,620 kHz T351 *1
MW Band — 522 kHz (fL): T306 *2

Coverage 1.1 ± 0.1 V
MW 990 kHz 990 kHz (fL): T302 *1

Tracking
LW Band — 153 kHz (fL): T305 *2
Coverage 1.5 ± 0.1 V

LW 225 kHz 225 kHz (fL): T301 *1
Tracking

*1. Input: Antenna, Output: TP302
*2. Input: Antenna, Output: TP301

Frequency Frequency

Display

Setting/

Adjusting

Parts

TUNER PWB

CNP303

Instrument

Connection

• FM
Notes:

1: Description of the "FM IF Adjustment" is not carried on this

Manual. It is because the IF coil in the FM front end section
has been best adjusted in the factory so that its further
adjustment is not needed at the field. When replacing the
FM front end assembly, no adjustment is needed either.

2: The parts in the FM front end section are prepared in a

complete unit, so you can't obtain each part individually

• FM Mute Level

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

Frequency

98.00 MHz 98.00 MHz VR351* Input: Antenna
(25 dBµV) Output: Speaker

Frequency

Display

Adjusting

Parts

Instrument

Connection

Terminal

TP302

R357

IC303

FM MUTE
LEVEL

TP301

VR351

T351

MW BAND
COVERAGE

AM IF

T306

T305 T302 T301

LW BAND
COVERAGE

Figure 13 ADJUSTMENT POINTS

SO301
FM ANTENNA
TERMINAL

R336

FE301

CNP301
MW/LW
LOOP ANTENNA
TERMINAL

MW
TRACKINGLWTRACKING

– 13 –

CD-C1H/CP-C1H

G9 G9

G9

G6

G6

G8

G8

G5G5G4

G4

G10

G3

G10

G3

G2

G2

G1

G1~G8

G7

G7

S40

S39

S38

S30

S33

S35

S37

S36

S34

S31

S29

S27

S25

S23

S32

S24

S26

S28

S22

S41

S10

S1

S2

S7

S6

S5

S4

S3

S9 S8

S16

S15

S14

S13

S12

S17

S19

S21

S20

S18

TEST MODE

• Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
Hold down the EQ and CD buttons, and press the POWER switch. TEST: CD operation test

• TEST mode

Function — CD test mode

Setting of TEST mode
Indication of CD TEST mode (Fig. 14-1)
OPEN/CLOSE operation is manual operation.
The pickup can be moved by using the (

<MEMORY>
key input

When the track­ing servo is acti­vated, playback
will begin at the

Press the
STOP button.

current position.

) or ( ) key.

IL is not performed.

The pickup
willreturn to
the STOP
position.

<MEMORY>
key input

When the track­ing servo is acti­vated, playback
will begin at the
current position.

<STOP>
key input

The pickup nor­mally returns to
the STOP posi­tion.

<PLAY> key input

TOC. IL is performed, and the ordinary PLAY is performed.
If the following key is pressed during PLAY, it is possible
to specify directly any Track No.
<Disc Number 1> key: Track 4
<Disc Number 2> key: Track 9
<Disc Number 3> key: Track 15

Press <STOP> key. Stop

Note:

Only in STOP state it is possible to slide the pickup with the
(

) or ( ) key.

VOL. --- Last memory
BAL. --- CENTER
R.GEQ. --- FLAT
X-BAS --- OFF
Canceling method - POWER OFF

Figure 14-1

CD SECTION

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

• Automatic adjustment item

1. Focus offset (Fig. 14-2)

2. Tracking offset (Fig. 14-3)

3. E/F balance (tracking error balance) (Fig. 14-4)

4. RF level AGC function (HF level: constant)

5. RF level automatic follow-up of the tracking gain

This automatic adjustment is performed each time a disc is changed.
Therefore, each disc is played back using the optimal settings.

10ms

0.50 V
IC1 16 FD

Enlarged
View

0.1s

0.50 V
IC1 16 FD

0.1s

0.50 V
IC1 7 TE

200 ms
1V/diV
IC 1 15

TO

Figure 14-2

FOCUS
OFF-SET
ADJUST

TRACKING
OFF-SET
ADJUST

1
2

TRACKING/
ERROR
BARANCE

1

ADJUST

10ms

0.50 V
IC1 7 TE

200 ms
1V/diV
IC 1 7

TE

2

Figure 14-4

TRACKING
OFF-SET
ADJUST

1
2

– 14 –

Figure 14-3

CD-C1H/CP-C1H

EXPLANATION OF AUTOMATIC SOUND VALUE CORRECTION CONTROL

1. Outline
The recent trend is toward rise of CD record level in the world, for example rock, dancing music, etc. In case of continuous high
level playback G-EQ (graphic equalizer) and VOL (Volume) are controlled (lowered) automatically after a lapse of specific time
(10 minutes) so as to get the easy-to-listen sound level.

2. Explanation of operation
The CD playback operation is explained below.

Distortion clip point

X

0w

10 minutes

A

X : Threshold value of control circuit operation
A : Hight energy (hatched area) exceeding X is detecated, and the control mode is set.
B : After a lapse of 10 minutes the control is started.

B ~ C :

Data is fetched every 4
seconds to control.

Initial frequency
characteristics.

At first, the H and L frequency characteristics are lowered as shown above so thet the distortion
and disturbance are reduced. However, if hight energy exceeding X is detected, VOL is lowered
to get sound easy to listen.

Hand L frequency char­acteristics are lowered.

B C D

SP output
level

VOL (Volume) is lowered.

C ~ D :

Control mode cancel conditions

Stable control
Continued control

The output data is fetched every 4 seconds to control. When quiet music is played back, the
control is performed so as to restore the initial frequency characteristics and initial VOL values.

When output exceeding X is not given
continuously for 10 minutes.

When the power is turned off or on.

– 15 –

When quiet music is played back.
When VOL is lowered.

CD-C1H/CP-C1H
RDS

RDS (Radio Data System) OPERATION

■

Receiving FM Stations with RDS (Radio Data System)

RDS is a broadcasting service which a growing number of FM stations are now providing. It allows these FM stations to
send additional signals along with their regular programme signals. For example, the stations send their station names, and
information about what type of programme they broadcast, such as sports or music, etc.
When tuned to an FM station which provide the RDS service, the RDS will appear, the station frequency (and then the
station name if sent) is displayed.
The TP (Traffic Programme) will appear on the display when the received broadcast carries traffic announcements, and the
TA (Traffic Announcement) will appear whilst a traffic announcement is being received.
EON will appear whilst the EON (Enhanced Other Networks information) data is being broadcast.

Note:

When the TP and TA appear at the same time, an announcement is being made.
When only the TA appears, an announcement is not being made. (See page 21.)

■

Information Provided by RDS

With the CD-C1H, you can watch two types of RDS service. To
show them on the display, press the DISPLAY MODE button.
Each time you press the DISPLAY MODE button, the display will
change to show the following information.

DISPLAY

PS (Programme Service):

MODE

PTY (Programme Type): Programme type will be dis-

Station Frequency:

Descriptions of the PTY (Programme Type) codes, TP (Traffic Programme) and TA (Traffic Announcement)
With the CD-C1H, you can search for and receive the following PTY, TP and TA signals.

NEWS:
AFFAIRS:

INFO:
SPORT:

EDUCATE:
DRAMA:
CULTURE:

SCIENCE:
VARIED:

DISPLAY

News
Topical programme expanding on the

current news or affairs
Programmes on medical service,

weather forecast, etc.
Sports events

Educational programmes
Radio plays
Programmes on national or regional cul-

ture.
Programmes on national sciences and

technology
Other programmes like comedies or

ceremonies

POP M:
ROCK M:

M.O.R. M:
LIGHT M:

CLASSICS:
OTHER M:

ALARM:
NONE:
TP:

TA:

Note:

● When the unit is in the EON stand-by mode and a pro­gramme is selected, the unit will display "TI" instead of
"TA".

Station names commonly
known will be displayed. "NO
PS" appears if no signal is
being sent.

played.
"NO PTY" appears if no signal
is being sent.

Station frequencies.

Pop music
Rock music

Middle-of-the-road music (usually called
"easy listening")

Light music
Classics

Other music
Emergency broadcasts
No programme type (receive only)

Broadcasts which carry traffic an­nouncements

Traffic announcements are being broad­cast at present.

Lights up when RDS station is received.

Lights up when TA station is received.

Lights up when TP station is received.

G9 G9 G6G8G5 G4G10

G2

G3

G7

Lights up when stand-by mode and blinks during staying other network station.

Lights up when RDS with EON station is received.

8 character can display E1 table of EBU.

– 16 –

CD-C1H/CP-C1H

Yes

Displayed the TTL quantity of memo-

rized stations by ASPM operation on

this time. And return to the previous

receiving freq. automatically .

Preset CH memory become full over?

No

Begin to ASPM SCAN from the next

CH-SPAN again.

No effect

Pass

Pass

No effect

Repeat and continue with same format

ASPM operation untill 108 MHz.

After reached 108 MHz, displayed the

TTL quantity of memorized stations.

And return to the previous receiving

freq. automatically .

Effect

Memorized to the lowest

vacant preset channel.

Pass

No effect

Pass

No effect

No

No effectNoNo effect

No effect

Memorized to the lowest

vacant preset channel.

No

Yes

No operate. After displayed “END”. Return to

previous station.

Yes

No

Hold down the ASPM button for 3 more second.

ASPM, summary operation

“ASPM” blinks in the display.

Preset CH memory full over?

Begin to scan start 87.50 → 108.00 MHz

No

SD (TUNE) DET out OK?

No

Yes

If count 1st OK?

No

Yes

If count 2nd OK?

Comparing freg. same or not?

between current receiving frequency

and (already) previously memorized

frequency .

No

Yes

RDS signal or not? PI—identify

No

Yes

Comparing PI cord same or not?

between current receiving PI and

before PI which is already memorized

by ASPM on this time.

Yes

Comparing freg. same or not?

Between current receiving frequency

and (already) previously memorized

frequency .

Yes

Yes

Compare the field strength of current

receiving signal. Is receiving signal

stronger than signal which has same PI

cord and is already memorized to

preset memory ahead of this receiving

time?

– 17 –

CD-C1H/CP-C1H

• ASPM SCAN: 87.50MHz → 108.00 MHz.

• Only RDS signal is memorized by ASPM because RDS signal has PI code and is suitable and convenient for ASPM operation.
ASPM
Comparing field strength, only one strongest RDS station is memorized of all stations (repeater relay stations) that have same

PI code.

Each PI has AF’S list by individually.

Same PI code — freq: different

(AF’S)
PS: same
PTY: same

[For example] Pickup and memorized to preset CH.

f 1
f 2 f 3

P 1 (PI cord)
PS 1 (Station Name)

Select signals (f1, f5, f7, f10) are memorized in the preset memory by ASPM.

• If tentative - ASPM operation is repeated intententionally, never memorized (over write) at the same frequecy.
1st time ASPM → strongest stations of each pi are memorized.

ASPM is not only very usefull for PTY search, but also EON operation.
2nd time ASPM → 2nd strong stations of each pi are memorized and so on.
PTY search function is equal to FM band search function as a result.

f 5 f 4

P 2
PS 2

Exa: P1 has f1, f2, f3 (same PTY).
P2 has f4, f5 (same PTY).

---

f 6
f 7 f 8

P 3
PS 3

---

f 9 f 10
f 11 f 12 f13

P 4
PS 4

1. Introduction of RDS for CD-C1H

CD-C1H RDS function is equal to adding EON feature to the current CD-C75H RDS.
EON feature is EON—PTY and EON—TI.
Although PTY and TI indicators are separated, PTY contains TI in the PTY items (software) like current PTY search items.

NEWS, AFFAIRS, INFO, ALARM, TI (TTL 17 kinds)

↑

EON—PTY EON—TI

Can select and stand-by Can select and stand-by

EON—PTY and EON—TI are basically stand-by → receive the desired program of ON station.

2.The difference point from current CD-C75H RDS. (CD-C75H — CD-C1H)

1. PTY item: added TA.TTL 18 kind.

2. Each “TP”, “TA” ind. light up or go out individually.
“TA” ind. doesn’t light up on current model, CD-C75H due to none EON—TI.

3. Added 3 indicators(in FL) due to adding EON feature.
EON: Lights up only during receiving EON data (14A).
TI: During EON-TI stand-by → Light up

During receiving ON station. → blink.

PTY: During EON-PTY stanb-by → Light up

During receiving ON station. → blink.

4. No adjust type (None adjusting circuit.)

5. Added EON button.

6. Need to change RDS logo due to add EON feature.

7. Added EON—TI, EON—PTY function.

3. Summary of CD-C1H RDS—EON operation

EON—PTY: Select and set the desired “PTY” → stand-by → switch to ON(other network) Station at the
start of desired PTY automatically → stay and listen to PTY of ON station → switch back to TN(This net) station
automatically at the end of PTY(ON) i.e. after changing to another PTY(except AFFAIRS) or cancelling to receive PTY of ON
station midway.
EON—TI: Select and set the “TI” → stand-by → switch to ON station at the start of traffic announcement automati
cally → stay and listen to TA of ON station → switch back to TN station autmatically at the end of TA(ON).

ie after TA(ON) is over or cancelled to receive TA of ON station midway.

When switching TN → ON station.
In case of exist 2 more stations having the desired(specified) “PTY” or “TI”, the receiver will select and switch to ON station
comparing field strength at the same time. But when the frequency of ON station exists in the preset-memory, then reciver
switches straight to that ON station(CH), without comparing field strength so can make a quick switching from TN—ON sta
tion. Preset memory takes priority of switching TN—ON station.

therefore ASPM is usefull not only for PTY search but also for rapid EON switching. Anyway CD-C1H EON is basically stand­by and receiving method, along with the Guidelines for EON implementation.

↑

– 18 –

CD-C1H/CP-C1H

EON summary notice for reference

1. EON-TI/PTY EON stand-by can be set, only when EON ind. lights up.
While EON ind. goes out (NO EON STATION), EON stand-by can't be set.
If the EON button is pressed, then “NO EON” is indication the display.

2. EON-TI/PTY Even if switch back ON→ TN station continue to keep EON stand-by.

3. EON-TI Don’t switch TN→ON during TN broadcast TA. (same item)

4. EON-TI/PTY

5. EON-TI/PTY EON stand-by is perfectly cancelled (cleared) by pressing EON button 2 times during stand-by or

powerOFF or Tun Up/ Down or change band or recall pre-set CH.

6. EON-TI/PTY After setting EON stand-by, stand-by items can be confirmed by pressing EON button one time.

7. EON-TI/PTY EON button function: •EON setting

8. EON-TI/PTY After setting EON-TI and EON-PTY stand-by, if when EON data is not transmitted, EON ind goes out

9. EON-TI EON-TI stand-by can't be set. When TP=0,TA=0(TN) even if EON ind. lights up and the EON button is

10. EON-PTY Don’t switch TN→ON during TN broadcast same specified PTY. (same item of PTY)

11. EON-TI/PTY Switch TN→ON→ TN station one cycle.

12. EON-TI/PTY After switch TN→ON station. When ON station is NO RDS, NO signal, TA=OFF or different PTY items.

13. During receive ON station. when ON station become to be NO RDS, NO signal, TA=ON to OFF or

14. EON-TI/PTY Switch TN→ON in case of 2 more stations exist, comparing field strength and switch to thestrongest

15. Even if switch TN→ON preset memory straight, that ON station is very weak signal, then search another

16. EON-TI/PTY No linkage volume, power ON/OFF, and switch function.

EON can be cancelled during receiving ON station by pressing EON button if necessary and
switch back ON→TN.

•Confirm stand-by items

•Cancel (ON→TN)

•EON clear cancel (2 times)
and EON stand-by is automatically cancelled display “NO EON”.
pressed then “NO TI” is indication the display.

Never switch TN→ON1→ON2→ Other net to other net station.
The receiver switch back ON→TN displaying “NO READY”.
different PTY item, The receiver switch back ON→TN.
station, if these signals are same strength, switch to the first previous station.

If same frequency as AF'Sexists in the preset memory, then switch TN→ON (preset memory station)
straight.
In case of exist 2 more preset memories of AF’S,then switch to the preset CH which taken in EON DATA
first, also in this case no concern to field strength.

AF'S (ON) station comparing field strength and switch to the strongest station as a result. Of all atations
of AF'S are very weak or no good condition, then, switch back ON→TN automatically display "NO
READY".

Traffic Programme code

(TP)

OFF OFF This programme does not carry traffic announcements nor does

OFF ON This programmecarries EON information about another

ON OFF This programme carries traffic announcements but none are

ON ON A traffic announcement is being broadcast on this programme at

Traffic Announcement code

(TA)

Applications

it refer, via EON, to a programme that does.

programme which gives traffic information.

being broadcast at present and may also carry EON information
about other traffic announcements.

present.

– 19 –

CD-C1H/CP-C1H

NOTES ON SCHEMATIC DIAGRAM

• Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.

• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to electro­lytic capacitor, the expression “capacitance/withstand volt­age” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type

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

SW701 VOLUME UP/DOWN OFF
SW702 JOG DIAL OFF
SW702A PICKUP IN OFF
SW703 X-BASS OFF
SW704 EQUALIZER/DEMO OFF
SW705 SRS MODE OFF
SW706 SRS PASS OFF
SW707 FF OFF
SW708 STOP OFF
SW709 EDIT NORMAL OFF
SW710 EDIT HIGH OFF
SW711 RECORD/PAUSE OFF
SW712 FORWARD PLAY OFF
SW713 DOLBY-NR OFF
SW717 REWIND OFF
SW718 CD PAUSE OFF
SW719 REVERSE PLAY OFF
SW720 REVERSE MODE OFF
SW721 CLOCK OFF
SW722 TIMER OFF
SW723 SLEEP OFF
SW724 VIDEO/AUX OFF
SW725 TAPE 1/2 OFF
SW726 TUNER (BAND) OFF
SW727 CD OFF

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

1. In the tuner section,

( ) indicates AM
< > indicates FM stereo

2. In the main section, a tape is being played back.

3. In the deck section, a tape is being played back.

( ) indicates the record state.

4. In the power section, a tape is being played back.

5. In the CD section, the CD is stopped.

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

POSITIONREF. NO DESCRIPTIONREF. NO DESCRIPTION POSITION

SW728 RDS PROGRAMME TYPE/TRAFFIC OFF

SW729 RDS EON OFF
SW730 RDS DISPLAY MODE OFF
SW731 RDS DISPLAY APSM OFF
SW732 CLEAR OFF
SW733 MEMORY/SET OFF
SW734 ON/STAND-BY OFF
SW739 DISC 3 OPEN/CLOSE OFF
SW740 DISC 3 OFF
SW741 DISC 2 OPEN/CLOSE OFF
SW742 DISC 2 OFF
SW743 DISC 1 OPEN/CLOSE OFF
SW744 DISC 1 OFF
SWB101,102
SWB103,104
SWB105 CD EJECT OFF
SWB107 CD IN OFF
SWB108 CD SET OFF
SWE1 TAPE 1 PLAY OFF
SWE2 TAPE 1 CrO
SWE4 TAPE 2 PLAY OFF
SWE5 TAPE 2 CrO
SWE7 TAPE 2 SIDE A FP OFF
SWE8 TAPE 2 SIDE B FP OFF

INFORMATION SERCH

CAM1, 2 OFF
CAM3, 4 OFF

2

2

OFF

OFF

FRONT

VIEW

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

2SC535 C
2SC1845 F
2SC2236 Y
2SC2878 B
2SC2878 A
2SD468 C
KTA1266 GR
KTA1270 Y
KTA1271 Y
KTA1273 Y
KTC3199 GR
KTC3200 GR
KTC3203 Y
KRA107 M
KRC102 M
KRC104 M
KRC107 M

FRONT

VIEW

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

2SD2012
2SK246 GR

FRONT VIEW

2

FRONT

VIEW

E C B

2SB1375

3

TOP

VIEW

1

KTA1504 Y
KTC3875 GR

KV1236Z23

Figure 20 TYPES OF TRANSISTOR AND LED

– 20 –

KDV147 C

SPR325MV
SLV312MC

484GT44

FRONT

VIEW

FRONT

333GTH2
333GTH4
333YTH2

VIEW

OPTICAL

PICKUP

IC1
IC2

+5V

Q81

+7.3V (B2)

VOLTAGE

REGURATOR

SW702A

PICKUP IN

PU-IN SW

13

242530

31

SL-

SP-

SL+

SP+

IC3

M56748FP

FOCUS/TRACKING/

8
9

SPIN/SLIDE DRIVER

10
11

34

3536

27 262829

CAM SWITCH

TRAY SWITCH

12

FO+

MOTOR

SPINDLE

MOTOR

6

7

TR-

FO-

20

+B1

M702

SLED

M

M701

M

TR+

17

SWB101
SWB102

SWB103
SWB104

SWB105
SWB106
SWB107
SWB108

1
5

14
22
32

SL+. SL–. DRF

TRACKING COIL

4

TO

15

FD

16

SPO

27

SP

23
29

SLD

30

SL–
SL+

31
54

50
51
52
53

CL, DAT, SELIAL CONTROL/CE

53

~

58
61

CONT3
CONT4
CONT5

8

TA7291S

1

MAIN CAM MOTOR

DRIVER

9

SERVO AMP.

DRF
CLK

CL
DAT
CE

SLI

44

JP–

SERVO SIGNAL

RES. CQCK. COIN

SQOUT. RWC. WRQ

RCHO

RVSS

LVSS

LCHO

37

3839

40

IC81

3

7

FOCUS COIL

1

3

2

F

E

FIN2

FIN1

IC1

LA9241M

JP–

CV+

SLC

RFSM

~

324043

41

~

101220

9

CLV+

EFMO

EFMIN

LC78622K

IC2

CONTROL

2726

2
6

+B4

5

XOUT

VVDD

LVDD
RVDD
XVDD

DOUT

24

28

CONT1

Q51

DRIVER

SWITCHING

VCC2

XIN

VDD

25

CONT2

CD-C1H/CP-C1H

OPTICAL PICKUP UNIT

62

LD0

64

VCC1

56

45

44

6

23
36
41
43
31

VOLTAGE

1
9

LASER

Q1

DRIVER

+5V

Q52

REGULATOR

+7.3V

(B2)

XL1

16.934MHz

+5V

IC82

TA7291S

TRAY MOTOR

DRIVER

3

7

4

4

3

3

2

2

1

1

3

IC95

2
1

CD DIGITAL

OUTPUT

2
6

5

MOB2

M

MOTOR

MAIN CAM

M

+B4

TRAY

MOB1

MOTOR

TO MAIN SECTION

Figure 21 BLOCK DIAGRAM (1/3)

– 21 –

CD-C1H/CP-C1H

4

4
2
R

U

A

A

SO301

ANTENNA

TERMINAL

75ohm

AM LOOP ANTENNA

CNP301

8

1
2

L341

BALUN

AM RF

T301 LW ANTENNA
T302 MW ANTENNA

FE301

FM FRONT END

6

72

1

5

4

3

VT

FM

OSC

AM OSC

T305
T306

232221

DI

CE

IN

MPX

2

3

FM IF

AMP

FM IF

Q301

CF301

VR351

FM MUTE LEVEL

FMOSC

+B7

FM +B

20

CL

DO

RDS MICROCOMPUTER

VSSA

VDDA

4

Q360

VOLTAGE

REGULATER

ICT21

LC72720

FM

FM IF

CF302

FM IF IN

7

AM IF

21

OUT

FM IF DET/FM MPX./AM IF
IC303 LA1832

AM OSC

24

23

IN

OUT

X352

4.5MHz

20 22

1

OSC

PLL CONTROLLER

SWITCHING

151413

XIN

VSSD

VDDD

XOUT

12

+B7

T351

3

REG

22

21

7

AM RF IN

AFC

STEREO

INAM

FM IN

15 16 11

IC302

TC72131

CE

Q371

XT21

4.332MHz

4

58

GND

IN

13

MONO/ST

FM MONO/ST

10 13 12

6

5

43

DI

CL

DO

FM IF

6

SD

+B7

CF351

9

VCC

IF

OUT

10

VOLTAGE

REGULATER

IF IN

21

X351

17

11

MPX

PHASE

+B7

17

456kHz

19 20

+5V

Q361

12

18 16

FM/AM

OUT

VSM

MPX
VCO
CUT

+B7

SM

L354

MPX

1514

L

LOW PASS
FILTER

IN

R

MUTING

Q353
Q354

TUNER MUTE

QT21

AMP

SD

IC502/IC503/IC504

OPE AMP

12

+B8

B.P.F

4

SPE IN

–B6

+B8

8

6

8
67

IC502(1/2)

7

JT01

VIDEO/AUX

INPUT

TAPE 1

TAPE 2

L-CH

FROM CD UNIT

TAPE MOTOR

PHM1/PHM2

SWE2/E5

TAPE1/2 CrO

SWE1/E4

TAPE1/2 PLAY

SWE7

TAPE2

SIDE A FP

SWE8

TAPE2

SIDE B FP

SOL1/2

SOLENOID

PLAYBACK

HEAD

RECORD/
PLAYBACK
HEAD

R- CH

R-CH

MM1

M

L-CH
R-CH

L-CH

ERASE
HEAD

TAPE MOTOR

SWITCHING

QM21

+B6

MOTOR

DRIVER

QM02

QM01

QM03
QM04

DRIVER

HI SPEED

P.B

REC/PB

Q103 Q105
Q104 Q106

Q109

Q110

DRIVER

QM20
QM22

SWITCHING

Q149
Q150

Q107
Q108

Q111

SWITCHING

+B6

2

SWITCHING

REC

P.B

AC BIAS

VR101
VR102

BIAS

AJDUST

TAPE MOTOR

HI SPEED

QM08

SWITCHING

T1/T2 RUN PLS

T1/T2 CrO2

T1/T2 PLAY

T2 F-REC

T2 R-REC

T1/T2 SOLENOID

IC101

L REC

R REC

+B7

HI SPEED

Q128

L104

BIAS OSC.

L(T1)

24

R(T1)
L(T2)

23

R(T2)

L NF
R NF

16

14

REF

12

SWITCHING

AN7345K

1

2

3
4

T1/T2

6

REC

9

13

NOR/
HIGH

15

Q119

Q131
Q132

PLAYBACK&RECORD PLAYBACK AMP

POP REDUCE

SWITCHING

T2 CrO

PB-EQ

P.B.

H/N

T1/T2

19

Q126

SWITCHING

BEAT CANSEL

2

Q141

2

& CrO

HI SPEED

Q139
Q140

P.B

4

21

5

20

L

7

18

R
L NF

8

17

R NF

10
11

T1/T2

Q142
Q143
Q144

Q113
Q114

L
R

REC

REC

SWITCHING

T1/T2

Q501
Q502

HI SPEED & NOR

QD07
QD08

VRD01
VRD02

PLAY-BACK

ADJUST

T2 CrO2

Q127

Q125

Q124

SWITCHING

CD MUTE

SWITCHING

QD06

QD09
QD10

VRD03
VRD04

Q121
Q122

Q147
Q148

BAIS

REC
MUTING

Q153
Q154

HI SPEED

Q126

BEAT CUT

SWITCHING

BAIS

VR151
VR152

REC-SENS

ADJUST

DOLBY
ON/OFF

+B7

2

15

L

11

6

R

L

14

3

R

16

L

1

R

HA12134AF

DOLBY NR

L
R

DOLBY

PB MUTING

QD01
QD02

MUTING

5

VCC
GND

SIDE

CHAIN

BUF

SW

ICD01

VREF

BIAS

DOLBY
REC/PLAY

12

L

9
8

R

10

7
DET

4

13

REC MUTE

QD03

L

R

+B7

L251

MPX.

FILTER

L252

L

55

CD

57

R
L

53

TAPE

59

R

L

54

TUNER

58

R

AUX

L

51
61

R

SWITCHING

ICD03

BA3311L

REC./P.B

EQUALIZER AMP.

ALC

2

GND

L

IN

5
9

R
L

3

NF

11

R

L

67

R

OUT

1

12

8

VCC

IN

48

64 22

LR

IC452

BU4066BC
SRS MODE
SELECTER

4

8

9

10

1

11

2
3

1312

65

Q451

Q452

SWITCHING

3414

A

RVrefLVrefVref

27

21

REC

R

L

IC

SRS5

17

R

S

18

L

11

1

Q

Q461

VOLT

REGUL

+B7

Figure 22 BLOCK DIAGRAM (2/3)

– 22 –

MUTE

+B8

–B6

TUNER SM

TUNER SD

TUNER MUTE

AC POWER

SUPPLY CORD

AC 230V 50Hz

F855
T2.5A L 250V

TO CD UNIT

SW703~SW713
SW717~SW734
SW739~SW744

KEY IN

KEY MATRIX

F1

F1

F2

F2

F2

F1

VF2
(AC)

VF1
(AC)

TRY SW1
TRY SW2
TRY SW3
TRY SW4

CAM SW1
CAM SW2
CAM SW3
CAM SW4

J901
HEADPHONES

SO901
SPEAKER
TERMINALS

Q851

F858

T5A L 250V

F857

T5A L 250V

RL851
RELAY

+B7

T851

POWER

TRANSFORMER

VOLTAGE

REGULATOR

VP

VF2

(AC)

VF1
(AC)

F853

T2A L 250V

T.F

D850

D851

D852~D855

POSISTOR

R-IN

L-IN

SP DET

H/P SW

RELAY

PROT

Q999

–BL +BL

–BL

+BL

–BH

+BH

+BH–BH

+B6

IC901
STK41713
POWER AMP.

R-OUT

L-OUT

M901
FAN

MOTOR

Q994
Q995

FAN

RL901
RELAY

Q998Q997

Q903
Q904

M

R-CH

GND

GND

L-CH

+

–

–

+

Q828

POWER

POWER ON/STB

SWITCHING

Q905
Q906

VOL SW

QP03
QP04

S-MUTE

VOLTAGE

REGURATER

TO CD UNIT

+B8

VOLTAGE

REGULATER

F820

T500mA L 250V

Q824
Q827

Q820
Q821

Q826

Q822
Q823

Q825

+7.3V(CD)

+B9

VOLTAGE

REGULATOR

–B6

–15V

+B7

+B6

+B2

VOLTAGE

REGULATOR

UN-SWITCHED

+5V

+12V(MOTOR)

+12V(ANALOG)

VOLTAGE

REGULATOR

SWITCHING

VOLTAGE

REGULATOR

+B7

ICP01
NJM4565D
LOW BOOST AMP.

~

~

~

+B2

Q702~Q711

SW702SW701

JOG DIAL

–VP

VEEVDD

+B2

SCK
STB

COM

DAT

DS RES

STB

SCK

DAT

COM

CD SL–

TRY SW4

TRY SW3

TRY SW2

TRY SW1

CAM SW4

CAM SW3

CAM SW2

CAM SW1

RESET IN

+B3

P.FAIL DET

Q202
Q203

ZD201

SYSTEM STOP

X201

4.19MHz

OSC

RESET

Q201

+B4

VSS

MEMORY
BACK UP

+B2

UNSWITCH

+5V

VDD

+B3

+B4 (5V BACK UP)

CD-DRF

CD-PUIN

CD SL+

RWC

WRQ

SQ OUT

COIN

CQCK

+B6

RES

RX701
REMOTE
CONTROL
SENSOR

FL 701

FL DISPLAY

IC701

IX0209AW

FL DRIVER &

CONTROLLER

~~~

~~

VSS

~

LED701~LED709
LED714~LED718
LED721~LED726

~

~

VOL SW

H/P SW

POSISTOR

SP DET

FAN

PROT

S-MUTE

POWER

RELAY

C2B-CE

C2B-CL

C2B-DI

C2B-DO

T2 PLAY

T2 RUN

T1 CrO

2

T2 CrO2

T2 B FP

T2 A FP

PB MUTE

D ON/OFF
D PB/REC

T1/T2

REC MUTE

REC EQ

PB EQ

TA R/P

BEAT CUT

TA-BIAS

HIGH SPEED

T1 PLAY

T1 RUN

T1 SOLENOID

T2 SOLENOID

TAPE MOTOR

SPE1~5

Q463

SRS PASS

SRS A/SRS B

SRS IN H

Q464

SRS PASS

Q467

Q465
Q466

+B7

Q461

PASS

L

R

L

RLR

RVreff

L

R

IC451

SRS5250AS1

SRS

CD MUTE

CE

CL

DI

SRS IN H

SRS PASS

SRS B

SRS A

IC201

IX0210AW

SYSTEM MICROCOMPUTER

R

L

OUT

IN

L
R

–B6

R

L

OUT

OUT

IC501

LC75396N

AUDIO PROCESSOR

Vss

VDD

VOLUME

GRAPHIC EQUALIZER

+B7

LR

6

4
7

3

2

4

7

6

7
4

3

7

4

1

8

19

~ 23

58

70

25

78

10

9

91

11
94
93
92
14
13
18
56

90
15
57
89

12
16

17
27
95
96
97
98

4

3

5

21

99

10054

79

7528

362624

83 55

59

636261

87

68697172

53

52

51

49

48

47

46

45

44

43

42

41

40

39

38

37

35

34

33

32

31

30

16

29

95
96
97
98

10

31

85

88
91 92
99

100

~

15

89

184672 90

51

13

14 27 28

26

20

18

40 45

47 50 52 71

73

84

17 58

1
2
3

62
63
64

17

12

14
15

7

1

8

16

22

18

13

1

8

5

28
27

26

25

24

11

10

1

21

10

45
42
39

36

1

11

46
43
40
37

8
5
2

12

36

41

44

47

9
3

6

48

64

56

26

17

31

25

23

24

3414

30

39

VOLUME

TO DISPLAY

UNIT

SWB101
SWB102
SWB103
SWB104

SWB105
SWB106
SWB107
SWB108

SWITCHING

SWITCHING

VOLTAGE

REGULATOR

SWITCHING

SWITCHING

PROTECTION

PROTECTION

RELAY DRIVER

FAN MOTOR
CONTROL

PROTECTION

Figure 23 BLOCK DIAGRAM (3/3)

– 23 –

CD-C1H/CP-C1H