Sony CDE88 Service Manual

CD-E88

SERVICE MANUAL

No. S3318CDE88///

MINI COMPONENT SYSTEM

MODEL CD-E88

CD-E88 Mini Component System consisting of CD-E88
(main unit) and CP-E88 (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.

This Service Manual is for the CD-E88, which is a minor-

modification model of the CD-E700/CD-E77, This manual,
therefore, describes only the changed points from the service
manual. Please refer to the CD-E700/CD-E77, service manual
(No. S1301CDE700//) together with this manual.

CD-E700/CD-E77

Page

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

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

TROUBLESHOOTING.............................................................. 37

FUNCTION TABLE OF IC ........................................................ 41

CONTENTS

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

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

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

DISASSEMBLY.................................................................................................................................................................. 6

BLOCK DIAGRAM ............................................................................................................................................................. 9

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 12

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 29

TYPES OF TRANSISTOR AND LED............................................................................................................................... 29

VOLTAGE ........................................................................................................................................................................ 30

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 31

FL DISPLAY..................................................................................................................................................................... 32

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

Page

SHARP CORPORATION

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

CD-E88

IMPORT ANT SER VICE NOTES (FOR U.S.A. ONLY)

BEFORE RETURNING THE AUDIO PRODUCT

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

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

2. Inspect all protective devices such as insulating materials,

cabinet, terminal board, adjustment and compartment covers
or shields, mechanical insulators etc.

3. To be sure that no shock hazard exists, check for leakage

current in the following manner.
* Plug the AC line cord directly into a 120 volt AC outlet.
* Using two clip leads, connect a 1.5 kohm, 10 watt resistor

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

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

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

* Connect the resistor connection to all exposed metal parts

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

VTVM

AC SCALE

1.5 kohms
10 W

0.15 µF

TO EXPOSED

TEST PROBE

METAL PARTS

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

CONNECT TO
KNOWN EARTH
GROUND

– 2 –

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

SPECIFICATIONS

CD-E88

CD-E88 (For U.S.A.)

General

Power source AC 120 V, 60 Hz
Power

consumption
Dimensions Width: 10-5/8" (270 mm)

Weight 18.3 lbs. (8.3 kg)

142 W

Height: 13" (330 mm)
Depth: 13-15/16" (355 mm)

Amplifier

Output power 170 watts minimum RMS per channel into 6

Output terminals Speakers: 6 ohms

Input terminals Video/Auxiliary (audio signal): 500 mV/47 k

CD player

Type 3-disc multi-play compact disc player
Signal readout Non-contact, 3-beam semiconductor laser

D/A converter 1-bit D/A converter
Frequency

response
Dynamic range 90 dB (1 kHz)

Tuner

Frequency range FM: 87.5 - 108 MHz

Cassette deck

Frequency
response

Signal/noise ratio 55 dB (TAPE 1, playback)

Wow and flutter 0.3 % (WRMS)

CP-E88 (For U.S.A.)

Type 3-way 4-speaker system with passive radia-

Maximum input
power

Rated input power 170 W
Impedance 6 ohms
Dimensions Width: 10-7/8" (277 mm)

Weight 11.2 lbs. (5.1 kg)/each

ohms from 60 Hz to 20 kHz, 10% total har­monic distortion

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

ohms

pickup

20 - 20,000 Hz

AM: 530 - 1,720 kHz

50 - 14,000 Hz (normal tape)

50 dB (TAPE 2, recording/playback)

tor
Super tweeter 2
2" (5 cm) Tweeter
6-1/2" (16 cm) Woofer
6-1/2" (16 cm) Passive radiator
340 W

Height: 13" (330 mm)
Depth: 10-3/4" (273 mm)

CD-E88 (For Canada)

General

Power source AC 120 V, 60 Hz
Power

consumption
Dimensions Width: 270 mm (10-5/8")

Weight 8.3 kg (18.3 lbs.)

142 W

Height: 330 mm (13")
Depth: 355 mm (13-15/16")

Amplifier

Output power RMS: 340 W (170 W + 170 W) (10 % T.H.D.)
Output terminals Speakers: 6 ohms

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

Input terminals Video/Auxiliary (audio signal): 500 mV/47 k

ohms

CD player

Type 3-disc multi-play compact disc player
Signal readout Non-contact, 3-beam semiconductor laser

D/A converter 1-bit D/A converter
Frequency

response
Dynamic range 90 dB (1 kHz)

pickup

20 - 20,000 Hz

Tuner

Frequency range FM: 87.5 - 108 MHz

AM: 530 - 1,720 kHz

Cassette deck

Frequency
response

Signal/noise ratio 55 dB (TAPE 1, playback)

Wow and flutter 0.3 % (WRMS)

CP-E88 (For Canada)

Type 3-way 4-speaker system with passive radia-

Maximum input
power

Rated input power 170 W
Impedance 6 ohms
Dimensions Width: 277 mm (10-7/8")

Weight 5.1 kg (11.2 lbs.)/each

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

50 - 14,000 Hz (normal tape)

50 dB (TAPE 2, recording/playback)

tor
Super tweeter 2
5 cm (2") Tweeter
16 cm (6-1/2") Woofer
16 cm (6-1/2") Passive radiator
340 W

Height: 330 mm (13")
Depth: 273 mm (10-3/4")

– 3 –

CD-E88

NAMES OF P ARTS

CD-E88

Front panel

1. Disc Tray

2. Timer Set Indicator

3. Memory/Set Button

4. Power On/Stand-by Button

5. Clock Button

6. Timer/Sleep Button

7. Tuning and Time Up Button

8. Tuning and Time Down Button

9. Headphone Jack

10. Tape 2 Record Pause Button

11. Tape 1 Cassette Compartment

12. Equalizer Mode Select Button

13. Extra Bass/Demo Mode Button

14. Volume Control

15. Disc Tray Open/Close Button

16. Disc Skip Button

17. Tape 2 Cassette Compartment

18. CD Button

19. Tape (1 2) Button

20. CD or Tape Stop Button

21. CD Track Down or Fast Reverse, Tape 2 Rewind,
Tuner Preset Down Button

22. Tuner (Band) Button

23. Video/Auxiliary Button

24. CD Play or Repeat, Tape Play Button

25. CD Track Up or Fast Forward, Tape 2 Fast Forward,

Tuner Preset Up Button

10
11

1
2

12

3
4

13
5
6

14
7

8

15
9

16

17

18
19

22
23

Display

1. CD Pause Indicator

2. Extra Bass Indicator

3. Disc Number Indicators

4. Tape 2 Record Indicator

5. FM Stereo Mode Indicator

6. FM Stereo Receiving Indicator

7. Timer Play Indicator

8. Sleep Indicator

9. Timer Recording Indicator

10. CD Play Indicator

11. CD Repeat Play Indicator

12. Tape Play Indicator

13. Memory Indicator

Rear panel

1. Cooling Fan

2. AC Power Cord

3. FM/AM Loop Antenna Jack

4. Video/Auxiliary (Audio Signal) Input Jacks

5. Speaker Terminals

10
11

20
21

23456791 8

1

24
25

12
13

3
4

Note:

This product is equipped with a cooling fan inside, which begins to
run at a specified volume level for better heat radiation.

– 4 –

5

2

CD-E88

Remote control

CD-E88

1. Remote Control Transmitter

2. Disc Number Select Buttons

3. Program Clear Button

4. CD Memory Button

5. CD Track Down or Fast Reverse,

Tape 2 Rewind Button

6. CD Pause Button

7. CD or Tape Stop Button

8. Tape 2 Record Pause Button

9. CD Button

10. Tape (1 2) Button

11. Power On/Stand-by Button

12. CD Random Button

13. Direct Search Buttons

14. Tuner Preset Up and Down Buttons

15. CD Track Up or Fast Forward,

Tape 2 Fast Forward Button

16. CD Play or Repeat, Tape Play Button

17. Extra Bass Button

18. Equalizer Mode Select Button

19. Volume Up and Down Buttons

20. Tuner (Band) Button

21. Video/Auxiliary Button

Buttons with " " mark in the illustration can be operated on the re­mote control only.

10

1

2
3

11
12

4

13

5

14
15

16

6
7
8

9

17
18

19

20

CP-E88

1. Super Tweeters

2. Woofer

3. Tweeter

4. Passive Radiator

5. Speaker Wire

21

1

2

3

4

5

– 5 –

(B1)x2
ø3x10mm

(A1)x2
ø3x12mm

(A1)x2
ø3x12mm

(B1)x2
ø3x10mm

(B1)x4
ø3x10mm

Rear
Panel

Side Panel
(Right)

Side Panel
(Left)

Top Cabinet

Front

Panel

(C3)x1

CD Player
Unit

CD Tray Cover

(C2)x3

1

1
2

2

(E1)x1
ø3x10mm

(C1)x1
ø3x10mm

(E1)x1
ø3x10mm

(D1)x1
ø3x10mm

Lug Wire

Main PWB

Rear
Panel

Fan
Motor

Pull

(C3)x1

(C4)x2

CD Servo
PWB

Main
PWB

(D2)x1

(D1)x6
ø3x10mm

CD-E88

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-E88

STEP

10 Turntable 1. Hook ........................ (K1) x2 7-3

11 Loading Tray 1.

12 CD Servo PWB 1. Screw ...................... (M1) x2 7-5

13 CD Mechanism 1. Hook........................ (N1) x2 7-6

Note 1: How to open the changer manually. (Fig. 6-3)

1. In this state, turn fully the lock lever in the arrow direction through

2. After that, push forward the Loading tray.

Note 2:

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

Note 3:

1. Be careful not to break the claw of the CD mechanism.

2. When fining back the cam gear assembly, let it lock by front

REMOVAL PROCEDURE FIGURE

1 Top Cabinet 1. Screw ...................... (A1) x4 6-1

2 Side Panel 1. Screw ...................... (B1) x8 6-1

(Left/Right)

3 CD Tray Cover/ 1. Turn on the power supply,.. 6-2

CD Player Unit open the disc tray, take out

4 Rear Panel with 1. Screw ...................... (D1) x7 6-2

Fan Motor 2. Socket ..................... (D2) x1

5 Main PWB 1. Screw ...................... (E1) x3

6 Front Panel 1. Screw .......................(F1) x1 7-1

7 Display PWB 1. Knob ........................ (G1) x1 7-2

8 Tape Mechanism 1. Open the cassette holder. 7-2

9

Headphones PWB

(Note 2) 2. Hook........................ (M2) x1

the hole on the loading tray bottom.

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

movement.

the CD tray cover, and close.
(Note 1)

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

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

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

5. Socket ..................... (C4) x2

2. Socket ..................... (E2) x3 7-1

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

4. Flat Wire.................. (E4) x1

2. Hook.........................(F2) x2

3. Flat Wire...................(F3) x1

2. Screw .................... (G2) x10

3. Flat Cable ............... (G3) x1

2. Screw...................... (H1) x5

1. Screw ....................... (J1) x1 7-2

2. Stabilizer Holder ..... (K2) x1

Turn fully the lock lever in the
arrow direction

2.

Push the loading tray backward
to engage the claw with the
groove and remove it in the
direction of the arrow

3. Socket ..................... (M3) x4

2. Hook........................ (N2) x2

.

...

(L1) x6

6-2, 7-1

6-3
7-4

CD-E88

Figure 6-1

Figure 6-2

Lock Lever

CD Player Unit
(Bottom View)

Figure 6-3

– 6 –

CD-E88

(E2)x1

(F2)x1

Power PWB

Transformer
PWB

(E1)x1

ø3x6mm

(F3)x1

Display PWB

(G2)x10
ø3x10mm

(E3)x1

Figure 7-1

(E2)x2

(F1)x1

ø3x10mm

Front
Panel

(E4)x1

Headphones
PWB

Main PWB

(F2)x1

(G3)x1

Front Panel

(G1)x1

(L1)x3

2

1

Loading Tray

3

(L1)x3

Figure 7-4

(M1)x2
ø3x10mm

Loading

CD Servo

PWB

Tray

(H1)x5
ø3x10mm

(J1)x1

ø3x10mm

(K1)x2

Tape
Mechanism

Headphones
PWB

(K2)x1

Figure 7-2

Lug Wire

Open

Cassette
Holder

Turntable

Loading
Tray

(M3)x2

(M2)x1

(M3)x2

(N1)x1

CD
Mechanism

Figure 7-5

(N2)x2

(N1)x1

Loading Tray

Figure 7-3

Figure 7-6

CD Player Unit

– 7 –

CD-E88

(A3)x4
ø4x16mm

(B2)x4
ø4x16mm

(D1)x2
ø3x12mm

(C1)x2
ø3x12mm

(D1)x2
ø3x12mm

Speaker Box

Woofer

Tweeter

Super Tweeter

Super Tweeter

Passive
Radiator

CP-E88

STEP

REMOVAL PROCEDURE FIGURE

1 Passive Radiator 1. Screw ...................... (A1) x4 8-1

2. Side Panel .............. (A2) x1

3. Screw ...................... (A3) x4 8-3

2 Woofer 1. Front Panel ............. (B1) x1 8-2

2. Screw ...................... (B2) x4 8-3

3 Tweeter 1. Screw ...................... (C1) x2 8-3

4 Super Tweeter 1. Screw ...................... (D1) x4 8-3

Speaker Box

(A2)x1

Screwdriver

Driver should
be pried away
from Speaker Box.

Figure 8-3

(A1)x4
ø4x40mm

Figure 8-1

(B1)x1

Speaker Box

Figure 8-2

– 8 –

CD-E88

XL1

16.9344 MHz

+3.3V

Q4

CONSTANT

VOLTAGE

CNS601

TO MAIN SECTION

(+B6)

(+B6)

(+B7)

R-CH

AGND

L-CH

DGND

CE

61

CL

62

DI

63

DO

64

VWRQ

65

VRES

66

DRF

67

D5V

LCHO

A5V

45 42

RCHO

D_GND

+7V

8 7 1 2 3 4 5 6

CNP5

LC78646E

XOUT

48

XIN

49

ADAVDD

VVDD

RFVDD

+3.3V

47 46

CD SERVO

XVDD

LVDD

41 18 10 9 8 7 5

IC1

RVDD

Q1

FIN1

TO DISPLAY SECTION

WRQ

DRF CEDOCLDI

71 70

CONT3

CONT2

TIN2

TIN1

FIN2

CONT 5

SLDO

SPDO

LDD

LDS

80 79 77

SW1

CLAMP SW

O/C_SW

CD RES

FD0
TD0

DISC NO

10 3 1 9 8 7 6 52 4

CNP6

75
69
57
56
55
51
50
43
44
40

37
28
19

6

26

23
22
21
20

OPEN/CLOSE

+6.5V

1

VCC2

FOCUS/TRACKING/

22

+5V

12

SW3

CLAMP

DISC

NUMBER

M3

SW2

M

+

–

2 3 1 4 6 5

2 3 1 4 6 5

2 3 1 4 6 5

15 13 1 7 24

28 27

FD

TO

SLDO

SPO

IC2

LA6574H

SPIN/SLED

DRIVER

T/T UP/DOWN

LOADING MOTOR

BI4

CNS4

CNP4

3 2

30

29

26

+5V

PICKUP UNIT

LASER

DRIVER

+3.3V

COIL

TRACKING

FOCUS COIL

Figure 9 BLOCK DIAGRAM (1/3)

– 9 –

M1

SPINDLE

MOTOR

M2

SLED

MOTOR

8 7 6 5 4

M

M

9

10 11

IC

SW4

PICKUP

IN

CD-E88

AM LOOP

ANTENNA

FM

ANTENNA

IC301

TA7358AP

FM FRONT END

BF301

B.P.F

1

FM

L312

RF

AM TRACKING

T303 T306

5 7

FM

AM BAND

COVERAGE

6
9

8 4 3 2

OSC

T301

FM

OSC

OSC BUFF

Q302

FM IF

CF303 T302

IC303

LA1832S

FM IF DET./

FM MPX./AM IF

450 kHz

CF352

T351

AM IF

2 1

AM MIX

FM/AM IF MPX.

21

23

AM RF IN

AM OSC IN

4

7

STEREO

FM/AM

OUT

18

10.7 MHz

CF351

9 8 5

FMFM+BGND AM IF

DET

MPXIN

16

17

FM/AM

12

X351

456 kHz

13

MO/ST VCO

14

L
R

1

+B4

5

+B3

+B3

FROM CD SECTION

TAPE 1

P.B. HEAD

TAPE 2

REC./P.B. HEAD

L-CH
R-CH

L-CH
R-CH

ERASE

HEAD

MOTOR
DRIVER

Q706

Q707
Q708

SOLENOID

DRIVER

CNP5

REC.

P.B.

AC BIAS

CNS601

SWITCHING

Q103­Q106

BIAS
OSC

PLL(TUNER)

TAPE

MECHANISM

ASS'Y

BI601

1 1

2

3

3

4

L(T1)

R(T1)

L(T2)

R(T2)

L NF

R NF

POP REDUCE

L REC.

R REC.

SWITCHING

Q105
Q106

Q112

Q111

L103

IC302

LC72131

Q711
Q712

R

L

1

24

2

23

3

22

6
9

16
15

12
11

P.B.

T1/T2

REC.

T1/T2

SWITCHING

Q114

SWITCHING

Q113

X352

4.5 MHz

20 22 11

FM

VIDEO/AUX IN

R

OSC

JK690

L

7

TAPE

TUNER

CD

15

FM/AM

9

L
R
L
R
L
R
L
R

IC101

H/N

+B

FM

+B3

13

4

21

5

20

7

18

8

1 7

SWITCHING

+B4

L

P.B.

R

REC.

L
R

L NF
R NF

VT

+B4

Q360

AN7345K

19

PLAYBACK AND RECORD/

PLAYBACK AMP.

BIAS

Q109

SWITCHING

Q110

CLK

DO

DI

CE

416

6

5 13

21

IC601

17

+B4

23

3

DI

CE

CLK

Q107
Q108

MUTING

1
2

24

21

R

4

L

MO/ST

10

9
16
10
15

LC75341

11
14

AUDIO PROCESSOR

12
13

7

81817

–20dB

ATT

SYSTEM

Q601
Q602

REC/PLAY

MUTE

T1/T2

BIAS

Q603
Q604

Figure 10 BLOCK DIAGRAM (2/3)

– 10 –

CD-E88

SYSTEM

MUTE

601
602

+B4

Q603
Q604

L

18

R

14

SP. DET.

VL+

5

2

VL–

1

VH+

D905
D906

6

FL DISPLAY

~~

70

- - -

78

VLOAD

79
80
85
47

86
100

VDD

1

2 4 5 41

+B5

Q901
Q902
Q903
Q904

8

R-OUT
L-OUT

11

VH–

7

STK41243

POWER AMP.

–B2

FL701

~

4133

4527 331 195

+B5

46 30

48 1325

VDD

IC701

IX0553AW

SYSTEM

MICROCOMPUTER

RESET

11 1210 15 16 1 7 20 21 22 23 24

8 7

XL701

4.194304 MHz
+B5

Q709

RESET

VDD

+B5

SP RELAY

ON-OFF

IC901

-

4040

AVDD

CLK

CEDIDO

Q905

39
38
37
63

34
33

-

31
29

RL914

+B5

1

LED

DRIVER

Q710

SW701-SW707
SW711-SW718
SW721-SW724

+B PROTECT

SECTION

+B3

FAN

MOTOR DRIVER

Q906

RX701

REMOTE
SENSOR

2

LED703,
LED704

KEY

TO CD

+B6

MAIN
GROUND

3

+B5

+B5

JK701

HEADPHONES

M901

M

FAN MOTOR

SO901

SPEAKER

TERMINAL

REC/PLAY

T1/T2

BIAS

+B3

+B7

IC851,IC852,IC853:

VOLTAGE REGULATOR

VF1

–VF

VF2

+B5

AN78L05

VOLTAGE REGULATOR

KTC2026

IC855

M12

IC854

D801

D802

D804

D803

Q801

D855

+B4

+B6

–B1

+B1

+5.6V

+B2

KIA7812AP

IC851
LD+7V
KIA7810AP

IC852
A+10V

KIA7805AP

IC853

+5V

Figure 11 BLOCK DIAGRAM (3/3)

– 11 –

VOLTAGE

REGULATOR

Q841

RELAY

DRIVER

F802

5A/125V

F801

5A/125V

F804

2A/125V

F803

2A/125V

D842~
D845

PT801

MAIN POWER

TRANSFORMER

PT841

SUB POWER

TRANSFORMER

T.F.

F805

5A/125V

RL841

AC POWER

SUPPLY CORD

AC 120 V, 60 Hz

CD-E88

0

6

3
0

C

C134 220/10

CNS601

A

CNP5

CD SERVO

PWB

P21 12-D

B

R-CH

1

1

A_GND

2

3

L-CH

4

3

CD_GND

5

4

CD_+B

6

5

7

6

D_GND

7

8

LD+7V

8

9

10

TO

11
12

13

14

P16 1-F

15

TO POWER SECTION

16

17

18

BI601

+B
+B

+B

LD+7V
A_5V

D+5V

CD_GND

L-CH

A_GND

R-CH

CD_D_GND

CD_A_GND

R619

R618

FM SIGNAL

R601

PLAYBACK SIGNAL
RECORD SIGNAL

C652

220P

CD SIGNAL
VIDEO SIGNAL

C609

R605

1/50

R613

R615

4.7K

R614

390

Q601

KTC3199 GR

R611

2.2K

4.7K

R610

2.2K

Q602

KTC3199 GR

R612

390

L

R

SYSTEM

MUTE

R617

2.2K

Q603

330

330

KTC3199 GR

SYSTEM

Q604

KTC3199 GR

MUTE

R616

2.2K

10K

C605

C607

R607

3.9K
C611

0.0022

0.12

0.1

C613 1/50

C615 4.7/50

C617 1/50

C619 1/50

C621

1/50

C623

1/50

1K

R602

1K

220P

C651

IC601

LC75341

AUDIO PROCESSOR

1

DI
CE

2

3

4

5

6

7

8

9

10

11

12

VSS
LOUT

LBASS

LTRE

LIN

LSEL0

L4

L3

L2

L1

INTERFACE

–

+

–

CCB

–

+

+

AUX

DECK

TUNER

CD

24

23

22

21

20

C606

0.1

19

C614 1/50

18

C616 4.7/50

17

C618 1/50

16

C620 1/50

15

C622 1/50

14

13

C624

1/50

+B

C603

22/50

C608

0.12

220/1

C601

C653
220P

CLK

VDD

–

+

VREF
+

–

ROUT

–

+

RBASS

–

+

RTRE

RIN

RSEL0

–

+

R4
R3

R2

R1

C

C625

C640

22/50

R620

22K

C639

22K

1/50

R621

0.0022
R609

1.2K

R608

1.2K

C626

0.0022

D

R149

C121

C119

R150

0.022

0.0022

68K

150

0V

KTC3199 GR

MUTING

C150

47/50

C124 270P

4.7K

R126

R130 1.5K

R128

5.6K

18 19

17 16 15 14

Hich=CHROME

8 9

5.6K

R129

C143

3.3/50

4.7K

270P

C123

R127

R131 1.5K

R138

10K

0.7V

Q108

100

R132

C130

C128

0.022

C126
22/50

–

56K

+
+

56K

–

C125

22/50

100

R133

C127 0.022

C129 0.0033

0.0033

REC_R

R139

10K

10K

R134

C132

47/25

C133 22/50

Nor/CrO2

ALC

10 11

C131

47/25

10K

R135

R1
22

KT

RIPPLE

ALC

SWITCHING

Q113

R147

10K

R148

4.7K

L

R116

56

C112

47/25

C114

0.033
R118

100K

C110
330P

1K

23 22 21

24

2 3 4

1

C109

1K

330P

R117
100K

C113

0.033
C111

47/25

R115

56

KRC104 M

0V

23

1

0V

1

0V

2

Q114

KRC104 M

SWITCHING

C116
560P

R120

3.9K

–

112K

+

Hich=T1

+

112K

–

R119

3.9K

C115
560P

R146

10K

9.3V

8.6V

Q112

9.3V

KTA1266 GR

R112

15K

R102

1K

R101

1K

47K

0V

Q106

0V

SWITCHING

C106 560P

KTC3199 GR

560P

C105

SWITCHING

R114

R

C108
330P

L

C107
330P

R113

IC101

AN7345K

PLAYBACK

AND

RECORD/

PLAYBACK

AMP.

R111

15K

E

TAPE1

PLAYBACK HEAD

R-CHL-CH

F

ERASE HEAD

R-CH

L-CH

TAPE2

G

RECORD/

PLAYBACK HEAD

CNP101

T1_R

1

1

A_GND

2

2

T1_L

3

3

M_GND

1

1

ERASE

2

2

T2_R2

3

3

A_GND

4

4

T2_R1

5

5

T2_L1

6

6

7

T2_L2

7

CNP102

C102

560P

C101
560P

C104
180P

SWITCHING

C103
180P

Q102

KTC3200 GR

0V

0V

0V

Q104

KTC3200 GR

KTC3200 GR

0V

0V

0V

Q101

KTC3200 GR

R104

2.2K

0.7V

R106

3.3K

0.7V

SWITCHING

Q103

0.7V

R105

3.3K

0.7V

R103

2.2K

R109

4.7K

R107
47K

R110

4.7K

0V

R108

0V

0V

SWITCHING

Q105

KTC3199 GR

0V

3.4V

3.4V

3

R122
12K

R124

5.6K

C118
47/25

IC101

AN7345K

20

5 6 7

C117
47/25

R123

5.6K

R121

12K

C141

C120

100/16

R

0.0022

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 29.

1

23456

Figure 12 SCHEMATIC DIAGRAM (1/10)

– 12 –

CD-E88

C124

270P

270P

MAIN PWB-A1(1/3)

OR

9

VDD

VREF

ROUT

RBASS

RTRE

RSEL0

C653
220P

CLK

RIN

R4
R3

R2

R1

24

23

22

21

20

C606

0.1

19

C614 1/50

18

C616 4.7/50

17

C618 1/50

16

C620 1/50

15

C622 1/50

14

13

C624

1/50

C626

0.0022

+B

22/50

C608

0.12

C603

C601

220/16

R608

C602

0.022

R603

1K

C610
1/50

R606

R604

3.9K

10K

C612

0.0022

R642

10K

R644

6.8K

R643

6.8K

R641

10K

1.2K

+B

+B

+B

+B

R691

6.8K

R690

6.8K

C691
390P

C690
390P

R693

33K

R692

33K

CHASSIS

+B

A+10V

DGND

TUN_R

AGND

TUN_L

L-CH

JK690
VIDEO/
AUX IN

R-CH

CE

1

2

3

DI

4

CLK

5
6
7

TO TUNER SECTION

P15 11-H

8

DO

9

R136
220K

REC_R

R139

R138

10K

10K

0.7V

V

Q108

KTC3199 GR

MUTING

R132

R130 1.5K

C128

C126

22/50

17 16 15 14 13

–
+

=CHROME

+
–

8 9

C125
22/50

5.6K

R133

C127 0.022

R131 1.5K

100

C130

0.0033
C132

0.022

56K

56K

C131

100

C129 0.0033

KTC3199 GR

10K

R134

47/25

C133 22/50

RIPPLE

Nor/CrO2

ALC

ALC

10 11 12

47/25

10K

R135

R137
220K

0.7V

Q107

MUTING

C134 220/10

C135 0.022

Vcc

REC_L

0V

FFC701

16

16

15

14

13

12

11

10

9

8

7

6

5
4

3
2
1

1

CNP701A

TO

DISPLAY PWB

P18 1-F

R143

R144

C137

0.047
(ML)

R158

220

47K

22K

0V

+B

R140
47K

11.6V

Q109

KTA1266 GR

SWITCHING

R142

82 (1/2W)

0V

C138

0.0082

C139

0.039(ML)

0V

11.6V

R141

4.7K

Q111

0V

4.7

R145

L103

330 µH

BIAS
Q110

KRC104 M

23

0V

1

BIAS OSC.

KTC3203 Y

C140

47/25

CE
DO

CLK

DI

+B_PROTECT

D_GND

0V

+B

+B

(AUDIO PRO)

A+10V

+B_PROTECT

P16 1-F

D_GND

M_+13V

TAPE_A_GND

M_GND

19 20 21 22 23 24 25 26 27 28

AGND

TO POWER SECTION

SW_5V

SP_DET

SP_RLY

S_MUTE

T_T1/T2

REC/PLAY

T_BIAS

A+10V+B

M_+13V

SW_5V

SP_DET

SP_RLY

–20dB

CNP701B

7

8 9 10 11 12

Figure 13 SCHEMATIC DIAGRAM (2/10)

– 13 –

CD-E88

FM IF IN

C

C394

R374 1K

C362

A

B

C

D

E

F

ANTENNA

AM LOOP

ANTENNA

FM

1

1

2

2
33

C302

0.001

C338 0.001
D301 DS1SS133

D302 DS1SS133

BF301

BAND PASS FILTER

123

CNP301

C303

D305

DS1SS133

C308

4.7P
(CH)

C314

10P(CH)

C304

0.01

FM RF

0.0047

C315

0.0047

C323

0.022

IC301

TA7358AP

FM FRONT END

4

321

5

C305

4.7P
(CH)

C320

0.001

22

C316

0.022

0.001VD302

SVC211C

R313

C317

L312

R311
100K

C309

R314

AM OSC.

AM BAND

COVERAGE fL

6

7

R302

10

C311

18P

C310

15P(CH)

FM OSC.

C312

0.022

33K

R325

47K

0.001

R327

33

AM TRACKING

AM ANTENNA

T306

8

9

T301

T303

C335
560P

(HB)

C334

22P

(CH)

C307
10/50

C306

0.022

C324

4.7P(UJ)

T302

R322

680

C318
100P

Q302

KTC3194 Y

OSC BUFFER

C330

15P

(UJ)

SVC348S

68K

R323

FM BAND

COVERAGE fL

VD303

SVC211C

C313

R309

22P

10K

(CH)

FM IF

3

1

2

VD301

CF303

C331

0.047
C332

0.022

R316

4.7K

10K

R336

TP301

C342

0.022

+B

C381

12P(CH)

X352

4.5 MHz
C382

15P(CH)

R382

150

R358

3.9K

C351 0.022

C389 0.0

C397

0.022

22

12

C383

47P

R375

470

10K

R365

24

5.6K

R351

AM OSC OUT

1

C352 10/50

10K

R381

21 20

VSS

AOUT

X IN X OUT

+B

G

FM SIGNAL
AM SIGNAL

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 29.

1

23456

Figure 14 SCHEMATIC DIAGRAM (3/10)

+B

– 14 –