Sharp CDC-661-H, CDC-661-HR Service manual

CD-C661H/HR

SERVICE MANUAL

No. S5926CDC661HR

CD-C661H
CD-C661HR

Illustration: CD-C661H

CD-C661H mini component system consisting of CD-C661H
(main unit) and CP-C661H (speaker system).

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

• Note for users in U.K.

Recording and playback of any material may require consent
which SHARP is unable to give. Please refer particularly to the
provisions of Copyright Act 1956, the Dramatic and Musical
Prefomers Protection Act 1956, the Preformers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.

CONTENTS

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

IMPORTANT SERVICE NOTES (CD-C661H FOR U.K. ONLY) ....................................................................................... 2

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

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

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

DISASSEMBLY.................................................................................................................................................................. 7

REMOVING AND REINSTALLING THE MAIN PARTS..................................................................................................... 9

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

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

BLOCK DIAGRAM ........................................................................................................................................................... 17

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD..............................................................................................20

VOLTAGE ........................................................................................................................................................................ 38

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 39

TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 40

FUNCTION TABLE OF IC................................................................................................................................................ 45

WIRING OF PRIMARILY SUPPLY LEADS (CD-C661H FOR U.K. ONLY) ..................................................................... 51

FL DISPLAY......................................................................................................................................................................52

PARTS GUIDE/EXPLODED VIEW
PACKING METHOD (CD-C661H FOR U.K. ONLY)

Page

DIFFERENCE BETWEEN CD-C661H AND CD-C661HR

CD-C661H CD-C661HR

Speaker

This document has been published to be used

SHARP CORPORATION

– 1 –

for after sales service only.
The contents are subject to change without notice.

CD-C661H/HR

SAFETY PRECAUTION FOR

SERVICE MANUAL

Precaution to be taken when replacing and servicing the
Laser Pickup.

The AEL (Accessible Emission Level) of Laser Power Output
for this model is specified to be lower than Class I Requirements.
However, the following precautions must be observed during
servicing to protect your eyes against exposure to the Laser
beam.

(1) When the cabinet has been removed, the power is turned

on without a compact disc, and the Pickup is on a position
outer than the lead-in position, the Laser will light for several
seconds to detect a disc. Do not look into the Pickup Lens.

(2) The Laser Power Output of the Pickup inside the unit and

replacement service parts have already been adjusted prior
to shipping.

(3) No adjustment to the Laser Power should be attempted

when replacing or servicing the Pickup.

(4) Under no circumstances look directly into the Pickup Lens

at any time.

(5) CAUTION - Use of controls or adjustments, or performance

of procedures other than those specified herein may result
in hazardous radiation exposure.

(CD-C661H Except for U.K./CD-C661HR)

(CD-C661H For U.K.)

Laser Diode Properties

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

LASER KLASSE 1
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT

IMPORTANT SERVICE NOTES (CD-C661H FOR U.K. ONLY)

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

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

3,000 VRMS
Set time 6 secs
Set current(Cutoff current) 4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.

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

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 KéYTTéMINEN MUULLA KUIN
TéSSé
KéYTTô OHJEESSA MAINITULLA TAVALLA SAATTAA
ALTISTAA KéY TTéJéN TURVALLISUUSLUOKAN 1
YLITTéVéLLE NéKYMéTTôMéLLE LASERSéTEILYLLE.

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

WITHSTANDING
VOLTAGE TESTER

AC

+

OUT

-

SHORT-CIRCUIT
AC POWER
SUPPLY CORD

CHASSIS SCREW

PROBE

UNIT

CONNECT THE PROBE
TO GND OF CHASSIS

SCREW

– 2 –

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

SPECIFICATIONS

CD-C661H/661HR

General

Power source: AC 230 V, 50 Hz
Power consumption: 180 W
Dimensions: Width; 270 mm (10-5/8")

Height; 330 mm (13")
Depth; 358 mm (14-1/8")

Weight: 10.5 kg (23.1 lbs.)

Amplifier section

Output power: PMPO; 880 W (total)
(CD-C661H Except for MPO; 440 W (220 W + 220 W)
U.K./CD-C661HR) (DIN 45 324)

RMS; 300 W (150 W + 150 W)
(DIN 45 324)

Output power: RMS; 300 W (150 W + 150 W)
(CD-C661H For U.K.) (10 % T.H.D.)
Output terminals: Speakers; 6 ohms

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

Input terminal: Video/Auxiliary (audio signal);

500 mV/47 kohms

Compact disc player section

Type: 3-disc multi-play compact disc

player

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

conductor laser pickup

D/A Converter: 1-bit D/A converter
Frequency response: 20 - 20,000 Hz
Dynamic range: 90 dB (1 kHz)

CD-C661H/HR

Cassette deck section

Frequency response: 50 - 14,000 Hz (Normal tape)
Signal/noise ratio: 55 dB (TAPE 1, playback)

50 dB (TAPE 2, recording/

playback)

Wow and flutter: 0.2 % (DIN 45 511)
(CD-C661H Except for
U.K./CD-C661HR)
Wow and flutter: 0.15 % (WRMS)
(CD-C661H For U.K.)

CP-C661H (CD-C661H ONLY)

Speaker section

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

woofer, 8 cm (3-1/8") tweeter
and super tweeter]

Maximum input power: 300 W
Rated input power: 150 W
Impedance: 6 ohms
Dimensions: Width; 250 mm (9-13/16")

Height; 330 mm (13")
Depth; 335 mm (13-1/4")

Weight: 6.1 kg (13.4 lbs.)/each

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

Tuner section

Frequency range: FM; 87.5 - 108 MHz

AM; 522 - 1,620 kHz

– 3 –

CD-C661H/HR

CD-C661H/661HR

Front Panel

1. Disc Number Selector Buttons

2. Disc Tray

3. Multi Indicator

4. Disc Skip Button

5. Open/Close Button

6. RDS Indicator

7. Programme Type Indicator

8. Traffic Information Indicator

9. Extra Bass Indicator

10. FM Stereo Mode Indicator

11. FM Stereo Indicator

12. Traffic Programme Indicator

13. Traffic Announcement Indicator

14. (CD) Play Indicator

15. (CD) Pause Indicator

16. Dynamic PTY Indicator

17. EON Indicator

18. (CD) Repeat Indicator

19. (CD) Disc Number Indicators

20. (CD/TUNER) Memory Indicator

21. Timer Play Indicator

22. Timer Record Indicator

23. Spectrum Analyzer/Volume Level Indicator

24. (TAPE 2) Racord Indicator

25. Sleep Indicator

NAMES OF PARTS

1

10

11

9

16

2

17

23

6

3

7

18

8

12
13
14

15

24 25

4

5

19

20
21

22

26. Timer Set Indicator

27. (TUNER) Display mode Selector Button

28. (TUNER) Station Selector Button

29. (CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Rewind Button

30. (CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Forward Button

31. Timer/Sleep Button

32. Clock Button

33. (TUNER) EON Button

34. (TUNER) Programme Type/Traffic Information Search
Button

35. (TUNER) ASPM Button

36. On/Stand-by Button

37. Function Selector Buttons

38. Equalizer Mode Selector Button

39. Dimmer Button

40. Extra Bass/Demo Mode Button

41. Headphone Socket

42. (TAPE 2) Record Pause Button

43. Memory/Set Button

44. (CD/TAPE) Stop Button

45. (TAPE) Play Button
(CD) Play/Repeat Button

46. Tuning and Time Up/Down Buttons

47. Volume Control

31
32

33

34

35
36
37

26

41

28

27

42 43

48

29

44

45

49

30

46

38
39

40

47

48. (TAPE 1) Cassette Compartment

49. (TAPE 2) Cassette Compartment

– 4 –

Rear Panel

1

2
3

4
5

1. CD Digital Output Socket

2. AC Power Lead

3. FM 75 Ohms Aerial Socket

4. AM Loop Aerial Input Socket

5. Video/Auxiliary (Audio Signal) Input Sockets

6. Speaker Terminals

CP-C661H (CD-C661H ONLY)

Speaker

1. Super Tweeter

2. Tweeter

3. Woofer

4. Bass Reflex Ducts

5. Speaker Termainal

CD-C661H/HR

1

3

4
5

2

6

Remote Control

1. Remote Control Transmitter LED
CD Control section

2. Disc Number Select Buttons

3. Memory Button

4. Pause Button

5. Clear Button

6. Track Down/Review Button

7. Track Up/Cue Button

8. Disc Skip Button

9. Play/Repeat Button

10. Stop Button

11. Random Button
Tuner control section

12. Preset Up/Down Buttons
Tape control section

13. (TAPE 1) Play Button

14. (TAPE 2) Record Pause Button

15. (TAPE 1/2) Stop Button

16. (TAPE 2) Play Button

17. (TAPE 2) Rewind Button

18. (TAPE 2) Fast Forward Button
Common section

19. Equalizer Mode Selector Button

20. Function Selector Buttons

21. On/Stand-by Button

22. Extra Bass Button

23. Volume Up/Down Buttons

– 5 –

4

5
6

7

19

20
21

22

2

3

13 14

1

16 1718

15

8

9
10
11
12

23

CD-C661H/HR

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 Press the TUNING/TIME ( or ) button to select the time

display mode.

"0:00" → T he 24-hour d isplay will appear.

(0:00 - 23:59)

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

(AM 0:00 - PM 11:59)

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

(AM 12:00 - PM 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 Press the TUNING/TIME ( or ) button to adjust the hour.

Press the TUNING/TIME ( or ) button once to advance

the time by 1 hour. Hold it down to advance continuously.

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

matically to "PM".

7 Press the MEMORY/SET button.

8

Press the TUNING/TIME ( o r ) button to adjust the

minutes.

Press the TUNING/TIME ( or ) button once to advance

the time by 1 minute. Hold it down to change the time in 5

minute intervals.

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.)

To see the time display:

CLOCK

ON/

STAND-BY

MEMORY/

SET

TUNING/

TIME

( )

AM 12:00AM 0:000:00

2

3

4

7

6

5

8

9

Press the CLOCK button.

The time display will appear for about 5 seconds.

Note:

The clock display will flash on and off at the push of the CLOCK

button when the AC power supply is restored after a power

failure occurs or after the AC power lead is disconnected.

If this happens, follow the procedure below to change the clock

time.

To change the clock time:

Press the CLOCK button.

Within 5 seconds, press the MEMORY/SET button.

Perform steps 6 - 9 above.

To change the time display mode:

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

COMPUTER", on page 28.

Perform steps 1 - 9 above.

(Main unit operation)

In this example, the clock is set for the

24-hour (0:00) system.

1

2

132

PREPARATION FOR USE

15

15

Remote control

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 in-

terfere with operation. Change the lighting or the direction of

the unit.

Keep the remote control away from moisture, excessive heat,

shock, and vibrations.

0.2 m - 6 m

(8" - 20')

2

1,2

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

Whilst pressing down the button and the

button, hold down the ON/STAND-BY button 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.

OPERATION MANUAL

– 6 –

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.

CD-C661H/661HR

STEP

10 Tape Mechanism 1. Open the cassette holder. 8-3

11 Turntable 1. Screw ..................... (L1) x1 8-4

12 Disc Tray 1. Screw ..................... (M1) x2 8-4

13 CD Servo PWB 1. Screw ..................... (N1) x1 8-5

14 CD Changer 1. Screw ..................... (P1) x4 8-6

15 CD Mechanism 1. Screw ..................... (Q1) x1 8-6

REMOVAL PROCEDURE

1 Top Cabinet 1. Screw ..................... (A1) x4 7-1

2 Side Panel 1. Screw ..................... (B1) x8 7-1

(Left/right)

3 CD Player Unit/ 1. Turn on the power supply, 7-2

CD Tray Cover open the disc tray, take out

4 Rear Panel 1. Screw ..................... (D1) x8 7-2,

(with Digital 8-1
Output PWB)

5 Main PWB/ 1. Screw ..................... (E1) x1 8-1

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

6 Front Panel 1. Screw ..................... (F1) x3 8-1

7 Power Amp. PWB 1. Screw ..................... (G1) x7 8-2

8

Power Supply PWB

9 Display PWB/ 1. Screw ..................... (J1) x13 8-3

Switch PWB 2. Socket .................... (J2) x1

(Note 2) 2. Socket .................... (N2) x4

Mechanism

the CD cover, and close.
(Note 1)

2. Screw ..................... (C1) x1

3. Hook....................... (C2) x3

4. Hook....................... (C3) x2

5. Socket .................... (C4) x3

3. Flat Cable .............. (E3) x1

2. Socket .................... (F2) x1

2. Socket .................... (G2) x2

3. PWB Holder ........... (G3) x1

1. Screw ..................... (H1) x4 8-2

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

2. Cover ..................... (L2) x1

2. Guide ..................... (M2) x2

FIGURE

CD-C661H/661HR

(A1) x2
ø3 x12mm

Side Panel
(Right)

(B1) x2
ø3 x10mm

Back Board

(C4) x3

CD Player
Unit

(C1) x1
ø3 x10mm

(D1) x5
ø3 x6mm

(B1) x4
ø3 x10mm

(C3) x1

(D1) x1
ø3 x10mm

LOCK
LEVER

Pull

Rear Panel

Top Cabinet

(B1) x2
ø3 x10mm

Figure 7-1

Figure 7-2

CD-C661H/HR

Front Panel

CD Tray Cover

1

(D1) x1
ø3 x10mm

Side Panel
(Left)

(A1) x2
ø3 x12mm

Hook
(C2) x3

(C3) x1

1
2

Note 1:

How to open the changer manually. (Fig. 7-3)

1. Change, turn fully the lock lever in the arrow direction
through the hole on the loading chassis bottom in this state.
After that, push forward the CD player base.

Note 2:

1. After removing the connector for the optical pickup from the

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

Figure 7-3

– 7 –

CD-C661H/HR

(P1) x4

ø3 x12mm
(Q1) x1
ø2.6 x10mm

CD Changer
Mechanism

CD Mechanism

Shift Lever

CD Player Base

(D1) x1
ø3 x10mm

Power Supply
PWB

(E2) x3

(E3) x1

Front Panel

(F2) x1

(L1) x1
ø3 x10mm

(L2) x1

Washer

Turntable

Tuner
PWB

Power
Supply
PWB

Power Amp.
PWB

(H1) x4
ø4 x8mm

(E2) x1

Power Amp.
PWB

Figure 8-1

(G1) x2
ø3 x6mm

(F1) x3
ø3 x10mm

Main
PWB

(G1) x5
ø3 x10mm

(G2) x2

Push

2

Main PWB

(E1) x1
ø3 x10mm

(G3) x1

1 1

Push

Pull

Power Amp.
PWB

(M1) x1
ø3 x10mm

(M2) x1

(N2) x2

CD Player Unit

Disc Tray

(M1) x1
ø3 x10mm

(M2) x1

Figure 8-4

(N1) x1
ø3 x10mm

CD Servo PWB

Main
Chassis

(J1) x2
ø3 x10mm

(J1) x11
ø3 x10mm

Switch PWB

PowerAmp. PWB

Figure 8-2

(K1) x6
ø3x10mm

Figure 8-3

(J2) x1

Front Panel

Tape Mechanism

(N2) x2

CD Player Unit

Figure 8-5

Display
PWB

Open

Cassette
Holder

Be careful when installing the CD changer mechanism.
Install the CD changer mechanism on the CD player base after
the shift lever has been set in the highest position.

Figure 8-6

– 8 –

CP-C661H (CD-C661H ONLY)

STEP REMOVAL

1 Front Panel 1. Net.......................... (A1) x1 9-1

2. Rubber ................... (A2) x4

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

4. Tip .......................... (A4) x4 9-2

2 Woofer 1. Screw ..................... (B1) x4 9-2

3 Tweeter 1. Screw ..................... (C1) x4 9-2

4 Super Tweeter 1. Screw..................... (D1) x2 9-2

PROCEDURE

CP-C661H (CD-C661H ONLY)

CD-C661H/HR

FIGURE

Front Panel

(A1)x1

(A3)x4
ø4x18mm

(A2)x4

Figure 9-1 Figure 9-2

REMOVING AND REINSTALLING THE MAIN PARTS

CD MECHANISM SECTION

Perform steps 1, 2, 3, 11, 12, 13, 14 and 15 of the disassembly
method to remove the CD mechanism.

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

1. Remove the screws (A1) x 2 pcs., to remove the loading
motor.

Front Panel

Tweeter

Super
Tweeter

Loading Motor

Motor
PWB

(C1)x4
ø3x10mm

(D1)x2
ø3x10mm

(A4)x4

(B1)x4
ø4x12mm

Woofer

How to remove the pickup (See Fig. 9-4)

1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).

2. Remove the stop washer (B3) x 1 pc., to remove the gear
(B4).

3. Remove the pickup.

Note

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

– 9 –

(B1) x2
ø2.6 x6mm

Shaft
(B2) x1

(A1) x2
ø2.6 x5mm

Figure 9-3

Stop Washer
(B3) x1

Pickup

CD Mechanism
Gear
(B4) x1

Figure 9-4

CD-C661H/HR

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter Specified Value

Play: TW-2412 Tape 1: Over 80 g

• Torque Check

Torque Meter

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

• Tape Speed

Test Tape Adjusting

Normal MTT-111 VRM1 3,000 ± Speaker
speed 30 Hz terminal

Tape 2: Over 80 g

Specified Value

Tape 1 Tape 2

Specified

Point

Value

Instrument

Connection

TAPE MECHANISM PWB

VRM1

SWM1

TAPE

FAS
SW

SPEED

TUNER SECTION

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

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage Frequency Frequency

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

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

Tracking

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

• 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

Display

Adjusting

Parts

Setting/

Adjusting

Parts

Connection

Terminal

Instrument

Connection

Instrument

TP302

R357

CNP303

T351

AM IF

TUNER PWB

TP301

R336

VR351

FM MUTE
LEVEL

T306

AM BAND
COVERAGE

Figure 10 ADJUSTMENT POINTS

FE301

T302

AM
TRACKING

SO301
FM ANTENNA
TERMINAL

CNP301
AM LOOP
ANTENNA
TERMINAL

– 10 –

TEST MODE

1 2 3

2

1

10ms

0.50 V
IC1 20 FE

10ms

0.50 V
IC1 7 TE

Enlarged
View

TRACKING
OFF-SET
ADJUST

• Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
<REC. PAUSE> + <DISC. SKIP> + <POWER> TEST: CD operation test

• TEST mode

Function — CD test mode

Setting of TEST mode
Indication of CD TST mode (Fig. 11-1)
OPEN/CLOSE operation is manual operation.
The pickup can be moved by using the (

<MEMORY>
LASER ON

<MEMORY>
Tracking on the spot.
SERVO OFF PLAY

) or ( ) key.

<MEMORY>

Tracking on the spot.
SERVO ON PLAY

IL is not performed.

CD-C661H/HR

<STOP>

STOP

<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

Press <STOP> key.

Stop

<Disc Number 3> key: Track 15

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 11-1

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. 11-2)

2. Tracking offset (Fig. 11-3)

3. E/F balance (tracking error balance) (Fig. 11-4)

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.

0.1s

0.50 V
IC1 20 FE

FOCUS
OFF-SET
ADJUST

0.1s

0.50 V
IC1 7 TE

TRACKING
OFF-SET
ADJUST

1
2

Figure 11-2

200 ms
1V/diV
IC 1 15

200 ms
1V/diV
IC 1 7

TO

TE

TRACKING/
ERROR
BARANCE

1

ADJUST

2

Figure 11-4

– 11 –

Figure 11-3

CD-C661H/HR

Yes

Yes

Comparing freg.

same or not?

Between current receiving

frequency and (already)

previously memorized

frequency.

Hold down the ASPM button for 3 more second.

No operate. After displayed “END”. Return to

previous station.

“ASPM” blinks in the display.

Begin to scan start 87.50 → 108.00 MHz

Preset CH memory full over?

SD (TUNE) DET out OK?

Yes

No

No

No

No

No

If count 1st OK?

Yes

If count 2nd OK?

Yes

RDS signal or not? PI—identify

Yes

Comparing PI cord

same or not?

between current receiving

PI and before PI which is

already memorized by

ASPM on this time.

Yes

Yes

No

Comparing freg.

same or not?

between current receiving

frequency and (already)

previouslymemorized

frequency.

No

Memorized to the lowest vacant

preset channel.

No

Memorized to the lowest vacant

preset channel.

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?

No effect

No effect

No effect

Effect

Pass

No effect

Pass

No effect

Pass

No effect

Pass

No effect

Displayed the TTL quantity of memorized

stations by ASPM operation on this time.

And return to the previous

receiving freq. automatically.

Begin to ASPM SCAN from the next

CH-SPAN again.

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.

Preset CH memory become full over?

Yes

No

ASPM, summary operation

– 12 –

CD-C661H/HR

• 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 code)
PS 1 (Station Name)

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

• If tentative - ASPM operation is repeated intentionally, 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-C661H/661HR

CD-C661H/661HR 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-C661H/661HR)

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 stand-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 the addition of EON feature.

7. Added EON—TI, EON—PTY function.

3. Summary of CD-C661H/661HR 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 automatically → stay

and listen to TA of ON station → switch back to TN station automatically 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 receiver
switches straight to that ON station (CH), without comparing field strength so can make a quick switching from TN—ON station.
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-C661H/661HR EON is basically stand-by and receiving method, along with the Guidelines for EON implementation.

↑

– 13 –

CD-C661H/HR

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 power OFF

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 and

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 different

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

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

• Confirm stand-by items

• Cancel (ON→TN)

• EON clear cancel (2 times)
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”.
PTY item, The receiver switch back ON → TN.
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

Traffic Announcement code

(TA)

CD ERROR CODE DESCRIPTION

When a malfunction occurs during CD operation, an error
code will be displayed to identify the function in CD operation
which failed.

Error State Code
0001 Cannot detect pickup in SW
0101 Tray close operation error
0105 Tray close operation error
0201 Tray open operation error
0203 Tray open operation error
0304 Disc skip operation error
0305 Disc skip operation error

0307 Disc skip operation error

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.

at present.

– 14 –

CD-C661H/HR

DISPLAY

MODE

RDS (Radio Data System) OPERATION

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 regu-

lar 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 an-

nouncements, and the TA (Traffic Announcement) will

appear whilst a traffic announcement is being received.

EON will appear whilst the EON (Enhanced Other Net-

works information) data is being broadcast.

The PTYI (Dynamic PTY Indicator) will appear whilst the

Dynamic PTY station is being received.

Note:

When the TP and TA appear at the same time, an an-

nouncement is being made.

When only the TA appears, an announcement is not

being made. (See page 23.)

Information Provided by RDS

With the CD-C661H/CD-C661HR, you can display three types of

RDS service. To show them in the display, press the DISPLAY

MODE button.

Each time you press the DISPLAY MODE button, the display will

change to show the following information.

PS (Programme Service):

Station names commonly

known will be displayed.

"NO PS" appears if no signal

is being received.

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

played.

"NO PTY" appears if no sig-

nal is being received.

RT (Radio Text): Radio text will be displayed.

"NO RT" appears if no signal

is being received.

Station Frequency: Station frequencies.

(Continued)

Descriptions of the PTY (Programme Type) codes, TP (Traffic Programme) and TA (Traffic Announcement)

With the CD-C661H/CD-C661HR, you can search for and receive the following PTY, TP and TA signals.

NEWS:

Short accounts of facts, events and

publicly expressed views, reportage

and actuality.

AFFAIRS:

Topical programme expanding or en-

larging upon the news, generally in dif-

ferent presentation style or concept,

including debate, or analysis.

INFO:

Programmes whose purpose is to im-

part advice in the widest sense.

SPORT:

Programme concerned with any aspect

of sport.

EDUCATE:

Programme intended primarily to edu-

cate, of which the formal element is

fundamental.

DRAMA:

All radio plays and serials.

CULTURE:

Programmes concerned with any as-

pect of national or regional culture, in-

cluding language, theatre, etc.

SCIENCE:

Programmes about the natural scien-

ces and technology.

VARIED:

Used for mainly speech-based pro-

grammes usually of light-entertainment

nature, not covered by other ca-

tegories. Examples include: quizzes.

panel games, personality interviews.

POP M:

Commercial music, which would gener-

ally be considered to be of current

popular appeal, often featuring in cur-

rent or recent record sales charts.

ROCK M:

Contemporary modern music, usually

written and performed by young musi-

cians.

EASY M:

Current contemporary music con-

sidered to be "easy-listening", as op-

posed to Pop, Rock or Classical, or one

of the specialized music styles, Jazz,

Folk or Country. Music in this category

is often but not always, vocal, and

usually of short duration.

LIGHT M:

Classical Musical for general, rather

than specialist appreciation. Examples

of music in this category are instrumen-

tal music, and vocal or choral works.

CLASSICS:

Performances of major orchestral

works, symphonies, chamber music

etc., and including Grand Opera.

OTHER M:

Musical styles not fitting into any of the

other categories. Particularly used for

specialist music of which Rhythm &

Blues and Reggae are examples.

WEATHER:

Weather reports and forecasts and Me-

teorological information.

FINANCE:

Stock Market reports, commerce, trading etc.

CHILDREN:

For programmes targeted at a young audience,

primarily for entertainment and interest, rather

than where the objective is to educate.

SOCIAL:

Programmes about people and things that in-

fluence them individually or in groups. Includes:

sociology, history, geography, psychology and

society.

RELIGION:

Any aspect of beliefs and faiths, involving a God

or Gods, the nature of existence and ethics.

PHONE IN:

Involving members of the public expressing their

views either by phone or at a public forum.

TRAVEL:

Features and programmes concerned with travel

to near and far destinations, package tours and

travel ideas and opportunities. Not for use for

Announcements about problems, delays, or

roadworks affecting immediate travel where

TP/TA should be used.

LEISURE:

Programmes concerned with recreational acti-

vities in which the listener might participate.

Examples include, Gardening, Fishing. Antique

collecting, Cooking, Food & Wine etc.

JAZZ:

Polyphonic, syncopated music characterised by

improvisation.

COUNTRY:

Songs which originate from, or continue the mu-

sical tradition of the American Southern States.

Characterised by a straightforward melody and

narrative story line.

NATION M:

Current Popular Music of the Nation or Region

in that country's language, as opposed to Inter-

national `Pop' which is usually US or UK inspired

and in English.

OLDIES:

Music from the so-called "golden age" of popular

music.

FOLK M:

Music which has its roots in the musical culture

of a particular nation, usually played on acoustic

instruments. The narrative or story may be

based on historical events or people.

DOCUMENT:

Programme concerned with factual matters,

presented in an investigative style.

TEST:

Broadcast when testing emergency broadcast

equipment or receivers.

ALARM !:

Emergency announcement made under excep-

tional circumstances to give warning of events

causing danger of a general nature.

NONE:

No programme type (receive only).

TP:

Broadcasts which carry traffic announcements.

TA:

Traffic announcements are being broadcast at

present.

Note:

When the unit is in the EON stand-by mode and a programme

is selected, the unit will display "TI" instead of "TA".

– 15 –

CD-C661H/HR

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.

REF. NO DESCRIPTION POSITION POSITIONREF. NO DESCRIPTION

SW1 OPEN/CLOSE ON—OFF
SW2 MECHA UP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW701 POWER ON—OFF
SW702 STATION ON—OFF
SW703 CLOCK ON—OFF
SW704 TIMER/SLEEP ON—OFF
SW705 DISC 1 ON—OFF
SW706 DISC 2 ON—OFF
SW707 DISC 3 ON—OFF
SW708 DISC SKIP ON—OFF
SW709 OPEN/CLOSE ON—OFF
SW710 REV ON—OFF
SW711 REC PAUSE ON—OFF
SW712 MEMORY/SET ON—OFF
SW713 STOP ON—OFF
SW714 TUNER (BAND) ON—OFF
SW715 VIDEO/AUX ON—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.

SW716 TAPE ON—OFF
SW717 CD ON—OFF
SW718 PTY/TI SEARCH ON—OFF
SW719 EON ON—OFF
SW720 ASPM ON—OFF
SW721 DISPLAY MODE ON—OFF
SW722 FF ON—OFF
SW723 TUNING UP ON—OFF
SW724 TUNING DOWN ON—OFF
SW725 PLAY ON—OFF
SW726 VOLUME DOWN ON—OFF
SW727 VOLUME UP ON—OFF
SW728 X-BASS/DEMO ON—OFF
SW729 EQUALIZER ON—OFF
SW730 DIMMER ON—OFF
SWM 3 FOOL PROOF ON—OFF
SWM 4 F.A.S. ON—OFF
SWM 5 CAM ON—OFF

FRONT

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

2SA1015 GR
2SA1318
2SC380 O
2SC2389 SS
KRC102 M
KRC104 M
KRC107 M

Figure 16 TYPES OF TRANSISTOR AND LED

VIEW

KTA1266 GR
KTA1271 Y
KTA1273 Y
KTA1274 Y
KTD2058
KTC3199 GR
KTC3203 Y

FRONT VIEW

L1154GT4
SLI342DCB
SLI342UCB
SLI342YCB
SLI342YCJ

– 16 –

27

1

2

3

4

1

8

6

7

18

24

40

20

4

5

15

23

16

26

27

7
2

2520

29

21 22

35

14

38

39

28

41

42

37

36

PU-IN SW

XL1

XIN

LD0

FIN2

JP–

CV+

SLC

SL1

FIN1EF

TO

FD

SPO

NC

SLD

SL–

SL+

DRF

CL

DAT

CE

VCC1

6

+5V

PICKUP IN

SW4

FOCUS COIL

TRACKING COIL

M1

SPINDLE

MOTOR

M

M

M2

SLED

MOTOR

PICKUP UNIT

9

IC2

LC78622NE

SERVO/SIGNAL

CONTROL

+B1

IC3

M63001FP

FOCUS/

TRACKING/

SPIN/SLED

DRIVER

IC1

LA9241M

SERVO AMP.

RES. CQCK. COIN

SQOUT. RWC. WRQ

~

~

~

CL, DAT, SELIAL CONTROL/CE

Q51

SL+. SL–. DRF

9

8

7

6

5

4

3

2

1

GND (D)

MECHA UP

GND (D)

DISK NO.

OPEN/CLOSE

GND (D)M–M+

GND (M)

9

8

7

6

5

4

3

2

1

CNP10

M

+5V

+B1

62

64 45 3623 43

37

31

383940

24

25

10

1

2

2

1

3

3

2

1

4

5

6

10

265853

101220

324043

44

5352515431302923271615

4144

Q1

Q52

+4.3V

Q81 +7.3V (+B1)

REGULATOR

TO MAIN SECTION

(TO IC601)

XOUT

EFMO

EFMIN

CLV+

JP–

CONT2

CONT1

LCHO

LVSS

RVSS

RCHO

VVDD

VDD

LVDD

RVDD

XVDD

SW1

OPEN/CLOSE

SW2

MECHA UP

SW3

DISC No.

M3

LOADING

SOLM1

TO MAIN

SECTION

CNS10

+B5

~~

CNP11

BI1B

2

1

BI1A

CNP99

+5V

2

4

8

33

38

39

46

~

646251

11

22

CD-C661H/HR

Figure 17 BLOCK DIAGRAM (1/3)

– 17 –

CD-C661H/HR

4

6

8

B

K

O

K

O

SO301

ANTENNA

TERMINAL

AM LOOP ANT

BALUN

L341

FE301

FM FRONT END

2867 3 4

AM RF

AM ANT

T302

FM

OSC

T306

VT

AM OSC

1

5

FM IF
CF301

FM +B

FM IF

AMP

Q301

FM MUTE LEVEL

FMOSC

+B4

Q360

FM

VOLTAGE
REGULATOR

VR351

+B4

FM IF

CF302

FM IF IN

7

AM IF

T351

12 3 4589

REG INOUT VCC

FM/AM IF MPX.

AM OSC

23

22

24

IN

AFC

OUT

X352

4.5MHz

2220

1

15

OSC

IC302

LC72131

PLL (TUNER)

IC303

LA1832

21

STEREO

AM RF IN

INAM

FM IN

1116

4

3 6

DI

CE

FM IF

CF351

GND

13

67

SD

MONO/ST

FM MONO/ST

10

5

CL

DO

Q371

+B4

17 19

IF

OUT

10

PHASE

VOLTAGE
REGURATER

+B4

IF IN

1213

21

11

Q361
MPX

17

+5V

X351

456kHz

20

12

SM

18 16

FM/AM

OUT

MPX
VCO
CUT

MPX

IN

14

15

RL

MUTING

TUNER MUTE

AMP.

QT21

Q353
Q354

SWM3

FOOL PROOF

SWM4

F.A.S

SOLM1

SOLENOID

SWM5

CAM

+B7

+

3
5

3

8

+B5

IC70

3

2

FROM CD SECTION
CNP11

TAPE 1

PB HEAD

TAPE 2

REC PB HEAD

L-CH
R-CH

L-CH

R-CH

REC

P.B

AC BIAS

CNS11

1
2
3

SWITCHING

Q103~Q106

23 222120 15 14

DI

CL

CE

DO

ICT21
LC72720

IN

RDS DECORDER

MPX

VSSA

VDDA

3

2

4

IC101

PLAYBACK AND RECORD

L(T1)

R(T1)

L(T2)

R(T2)

R NF

POP REDUCE

L REC

R REC

AN7345K

/PLAYBACK AMP.

1

L NF

REF

24

2

23

3
4

6
9

16
14
12

T1/T2

REC

NOR/
HIGH

15 19

P.B.

H/N

T1/T2

SWITCHING SWITCHING

Q107
Q108

Q111

VSSD

13

4

21

5

20

7

18

8

17
10

13

VDDD

12

L
R

L R REC

L NF
R NF
ALC

XIN

XOUT

+B4

PB

XT21

4.332MHz

JK601

VIDEO/AUX

L

R

Q113
Q114

AUX
TAPE
TUNER

CD

11

5

L

16

R

4

L

17

R

3

L
R

18

AUDIO PROCESSOR

L

2

R

19

1

10

IC601

M62439SP

9

20

Q121
Q122

MUTING

–B4

R

13

8

L

ERASE
HEAD

BIAS
OCS

Q128
L104

Q109

SWITCHING

Q110

Figure 18 BLOCK DIAGRAM (2/3)

– 18 –

SWITCHING

Q124

L103

BAIS
Q126

WM3
OOF

WM4

.A.S

LM1
OID

WM5

AM

3

3
5

3

IC704

2

–B1+B5

8

IC563

KIA4558P

OPE AMP.

6 7

IC562

KIA4558P

OPE AMP.

8

4

–B1+B5

1

CD-C661H/HR

FL701

DISPLAY

Q702

M

Q703

MM1

TAPE MOTOR

4

1

1

+B5

+B7

1

RX701

2

+B7

KEY
SW701~SW725,
SW728~SW730

+B7

3

~~~

1 2 3

15 2516

4

50
49
48
47
46

VDD

45
44
43
42
41
40
39
38
37
36
35
34

AVDD

33
32
31

26

535251

MICROCOMPUTER

282930

+B5

PHM1

36

37 3839

29

IC701

IX0281AW

SYSTEM CONTROL

VDD

+B7

XL701

4.19MHz

7170696867666564636261 80797877

737260595857565554

767574

101112131415161718192021222324252627

8

9

6

5

7

Q704

Q705
Q706
Q707

4 3 2 1

+B5

81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99

100

VDD

TO CD
SECTION

Q907

MEMORY
BACK UP

+B1

M901

M

FAN MOTOR

JK671
HEADPHONES

UNSWITCH
+B7

~

28

R

L

–B4

REC

T1/T2

BAIS

ZD802

Q601
Q602

Q603
Q604

+B1

+B4

+B5

Q908
Q909

+7.3V

+12V(ANALOG)

+12V(MOTOR)

UNSWITCH

+B7

VOLTAGE

REGULATOR

Q852

Q851

Q850

Q853

IC901

18

STK411-230E

22

POWER AMP.

VH–

VH+

VL–

VL+

1

7

4

F850

T500mA L 250V

VOLTAGE

REGULATOR

VOLTAGE

REGULATOR

VOLTAGE

REGULATOR

Q803

Q910
Q911

8

Q801

13

2

+B5

D810

D809

D811~D814

D815
~D817

Q802

15

14

L-OUT
R-OUT

T5A L 250V

T2A L 250V

Q901
Q902

F804

F805

T5A L

250V

F806

D802~D805

Q905

Q903
Q904

T801

POWER

TRANSFORMER

F802

T2.5A L 250V

T.F

T802

POWER

TRANSFORMER

RL901

SO901
SPEAKER
TERMINAL

FRONT
SPEAKER

RL801

AC POWER
SUPPLY CORD

AC 230V, 50Hz

Figure 19 BLOCK DIAGRAM (3/3)

– 19 –

CD-C661H/HR

R164

R162

L104 330µH

2
2

A

B

C

P24 2 - E

TO POWER AMP.PWB

D

CHASSIS

E

TAPE1
PLAYBACK HEAD

R-CHL-CH

ERASE

HEAD

F

R-CH

L-CH

G

MAIN PWB-A1

R635

330

CNS901

L_CH

1

A_GND

2

R_CH

3

GND

4

–15V

5

SP_RLY

6

M_GND

7

M_+12V

8

CNP901

SP_DET

9

HP-L CH

10

HP_GND

11

HP-R CH

12

HP_RLY

13

C103

0.01

PIN103

MECHA BASE

CNS101

T1_R

1

A_GND

2

T1_L

3

CNP101

CNS102

M_GND

1

ERASE

2

T2_R2

3

A_GND

4

T2_R1

5

T2_L1

6

T2_L2

7

TAPE2
RECORD/
PLAYBACK HEAD

CNP102

D101

1SS133

D102

1SS133

1
2
3

1
2
3
4
5
6
7

FM SIGNAL
CD SIGNAL
PLAYBACK SIGNAL

RECORD SUGNAL

Q603

KTC3199GR

Q604

KTC3199GR

–B

+B

9.3V

9.3V

Q104

2SC2389SS

0V

2SC2389SS

0V

0V

0V

2SC2389SS

R619

2.2K
C625

0.001

C626

0.001

R620

2.2K

+B

C109

0.047
R113

10K

2SA1318

SWITCHING

0V

0.7V

0V

0.7V

Q106

Q105

2SC2389SS

Q103

C627

8.6V

Q109

R105

3.3K

R103

2.2K

R636

330

R615

4.7K

R616

4.7K

C102

0.001

C101

0.001

C106
180P

C105
180P

+B

22/25

R104

2.2K

R106

3.3K

0.7V

0.7V

R653

R652

C634

0.0082

R114

10K

C635

0.0082

100K

100K

R625
22K

R115

4.7K

Q601

KTC3199GR

C623

0.001
C624

0.001

Q602

KTC3199GR

C629
22/25

L601

2.2mmH

KRC104M

SWITCHING

0V

2 3

0V

0V

2

R112

R102

R101

R108

47K

0V

0V

4.7K

R110

4.7K

R109

0V

0V

0V

47K

R107

R613

10K

R617

2.2K

R618

2.2K

Q110

3.4V

1
1

3.4V

3

Q111

KRC104M

SWITCHING

10K

1K

1K

C108

0.001

0V

Q108

KTC3199 GR

C107

0.001

Q107

SWITCHING

KTC3199 GR

R111 10K

R628
22K

SWITCHING

C601

4.7/50

C605

4.7/50

R611

330

C621
10/50

R614

10K

+B +B

R155

150

+B

C153

C155

R

C112

330P

L

C111
330P

IC101

AN7345K

PLAYBACK AND

RECORD/

PLAYBACK

AMP.

C615

ZD601

MTZJ2.4B

C622

10/50

R171
220K

100/16

3.3/50

R118

1K

24

R117

1K

0.22

R609

2.2K

1.8K

R169

C611 0.033

R173

Q113

R120

56

R122

100K
C116
47/25

23

C113

330P
C115

47/25

R119

56

R601 1.5K

R603 1.5K
R605 1.5K
R607 1.5K

C613 0.22

C617

10/50

5.6K

C604

C603

4.7/50

4.7/50

KTC3199GR

C118

0.033

R124

3.9K

L108

2.2mmH

C114

330P

22

–

+

112K

Hich=T1

112K

+

–

L107

2.2mmH

100K

R121

C119
560P

C117

0.033

1
2
3
4
5
6
7
8
9

10

C619

0.022

R629

560(1/2W)

R L

R174

5.6K

Q114

KTC3199GR

560P

C120

R126

5.6K

C122

21

4 3 2 1

C121

1/50

3.9K

R123

R125

5.6K

20
19
18
17
16

15

IC601

14

M62439SP

13
12
11

AUDIO PROCESSOR

3.9K

1.8K

C127

C154

47/16

C156

3.3/50

R134 68K

19

6

C128

0.022

10K

R610

3.3/50

R135 18K

R175

R172
220K

R132

1/50

20

R131

R623

1K

R170

33K

5

33K

R136

6.8K

R138

18

R137

R612

0V

0V

18K

7

6.8K

R602 1.5K
R604 1.5K
R606 1.5K

R608 1.5K

C612 0.033

C614 0.22

C618

4.7P

C616

C620

10/50

10K

R156
220K

MUTING

R154

10K

0.7V

Q122

KTC3199GR

56

R142

560

R140

470P

C130

C132

0.001

C136

0.082

C134
22/25

17

–

+

Hich=CHROME

+

–

8

C133

22/25

C131

0.001

56

R141

560

R139

470P

C129

C135

0.082

4.7/50

0.022

ZD602

MTZJ2.4B

C140

0.0033

16
56K
56K

9

C139

0.0033

C602

C606

–B

C142

C141

1/50

@

4.7/50

R626

2.2K

C628

0.22

R624

330

R630 560(1/2W)

REC_R

R157
220K

R153

10K

0.7V

Q121

KTC3199GR

MUTING

10K

R146

C146

C145

1/50

22/25

14

13

15

Vcc

RIPPLE

Nor/CrO2

ALC

ALC

11

10

12

R145

10K

220/16

GND

R638
220K

R637
220K

REC_L

0V

0V

R158

220

Q124

2SA1015GR

+B

11.7V

11.6V

0V

SWITCHING

L103

100µH

11.6V

150

R160

Q1

KTC3

0V

100K

R167

0V

47K

R168

R166

12

C150

0.0039

C151

0.027(ML)

2

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.

1

23456

Figure 20 SCHEMATIC DIAGRAM (1/9)

– 20 –

ALC

RIPPLE

C145

.7/50

R626

2.2K

628

.22

24

0

_R

R157
220K

0.7V

Q121

C3199GR

UTING

C146

22/25

4

13

Vcc

GND

1

12

220/16

R638
220K

R637
220K

REC_L

0V

0V

R158

220

Q124

2SA1015GR

SWITCHING

L103

R160

R167

R166

C150

11.7V

100µH

150

100K

47K

0.0039

+B

11.6V

0V

2

11.6V

Q128

KTC3203Y

0V

0V

R168

12

C151

0.027(ML)

R640

47K

R642

47K

47K

R162

4.7K

R164

1

0V

KRC104M

0V

C152

L104 330µH

@

R639

R641

22K

–B

–B

3

0V

Q126
BIAS

BIAS OCS.

47/25

22K

R651

1K

+B

1

R-CH

CD_GND

L-CH

A_GND

1 2 2 3 3 4 4

R650

1K

+B

+B

+B

+B

+B

5

+7V
5

C641

0.001

6

+12V
6

BI11

CNS11

M_+12V

M_GND
A_+12V

R551

10K

R556

33K

R558

68K

R553

12K

C555

0.0068

R555

56K
R560
470K

SPA SIG

R561

C562

15K

0.022

C854

47/25

A_GND

C551
270P

C557
270P

C559

0.0027

C553

D551

1SS133

R566

2.2M
C556

0.0068
C561

0.022
R567

270K

R573
560K

+B

C853

0.047(ML)

P27 12 - D

TO CD SERVO PWB

+12V

–15V

R562
390K

R568

220K

3
R570
220K

5

6

IC563

390K

0.0027

R564

KIA4558P

OPE AMP.

KIA4558P

2

3
R572

2.2M
5

6

OPE AMP.

Q853

KIA78L05

3 1

2

D852

1SS133

D853

1SS133

+B

10K

R854

CD_GND

CNP99

IC562

C852

C860

47/25

4 2
1

8
7

4
1

8
7

+B

+B

22K

R852

0.047(ML)

22K

R853

Q852 KIA7806P

C859

0.1(ML)

+B

330

R575

C563

0.022

MTZJ6.2C

Q850

KTD2058

C851

22/25

+B

C857

47/25

1

DIGITAL OUTPUT PWB-A4

D_OUT 1
+4.3V

BI99

C339

0.001

R580

2

C858

L99

2.2mmH

CD GND

R632

8.2K

R631

8.2K

100K

R578

100K

R579

100K

3

T500mA L

0.1(ML)

C99

100/10

C855

0.1(ML)

F850

250V

3 3
2 2

CNS99

–B

330

R574

1SS133

C566

2.2/50
D555

1SS133

–B

D556

1SS133

C568

2.2/50

ZD551

33

R851

3

2

D850

1SS133

D851

1SS133

1 1

D554

C567

2.2/50

C569

KIA7812P

1

C856

0.1(ML)

0.022

Q851

C632

390P
C631

390P

C98

0.022

R634

39K

R633

39K

D601

1SS133

D602

1SS133

C630

0.001

D_GND

CLK

A_12V
A_GND

TUN_L
TUN_R

TUN_SM

CLK

HP-R CH

HP_RLY
HP_GND
HP-L CH

SPEANA1
SPEANA2

SPEANA3

M_+12V

SP_DET

SPN_P

SP_RLY

HI_CUT
S_MUTE
T_T1 T2

T_BIAS

REC/PLAY

TUN_SM

SUR_ON/OFF

D_GND

+B

C850

3300/25

+B

+B

CD-C661H/HR

3
2
1

IC99

JK601

L-CH
VIDEO/AUX

IN
R-CH

CHASIS

1
2

DO

3

CE

4

DI

5
6

CNP303

7
8
9

10

CNS303

DI

24

CE

23

DO

22
21
20

19
18
17
16
15
14
13
12
11
10

9

8

7
6

5

4

3

2

+5V

1

CNP701

+B

1

1

GND
+5V

2

3

BI801

2
3

CNS801

P28 6 - B

TO TUNER PWB

CNS701

P20 1 - D

TO DISPLAY PWB

CNP801

P25 7 - F

TO POWER SUPPLY PWB

CNP11

P27 12 - C

TO CD SERVO PWB

7

8 9 10 11 12

Figure 21 SCHEMATIC DIAGRAM (2/9)

– 21 –