Sharp CD-E88 User manual

CD-E88
No. S3318CDE88///
CONTENTS Page
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)
SERVICE MANUAL
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
MINI COMPONENT SYSTEM
MODEL CD-E88
CD-E88 Mini Component System consisting of CD-E88
(main unit) and CP-E88 (speaker system).
CD-E700/CD-E77
Page
REMOVING AND REINSTALLING THE MAIN PARTS.............. 9
ADJUSTMENT ..........................................................................10
TROUBLESHOOTING.............................................................. 37
FUNCTION TABLE OF IC ........................................................41
This Service Manual is for the CD-E88, which is a minor-
modification model of the CD-E700/CD-E77, This manual,
therefore,describesonlythechangedpointsfromtheservice
manual.PleaserefertotheCD-E700/CD-E77,servicemanual
(No. S1301CDE700//) together with this manual.

CD-E88
– 2 –
IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the
following safety checks.
1. Inspect all lead dress to make certain that leads are not
pinchedorthathardwareisnotlodgedbetweenthechassis
and other metal parts in the audio product.
2. Inspect all protective devices such as insulating materials,
cabinet,terminalboard,adjustmentandcompartmentcovers
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
havingareturnpathtothechassis(antenna,metalcabinet,
screw heads, knobs and control shafts, escutcheon, etc.)
and measure the AC voltage drop across the resistor.
AllcheckmustberepeatedwiththeAClinecordplugconnection
reversed.
Anyreading of0.3 voltRMS(thiscorrespondsto0.2milliamp.
AC.) or more is excessive and indicates a potential shock
hazard which must be corrected before returning the audio
product to the owner.
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
TEST PROBE
0.15 µF
1.5 kohms
10 W
VTVM
AC SCALE

– 3 –
CD-E88
CD player
Tuner
Cassette deck
Type 3-disc multi-play compact disc player
Signal readout Non-contact, 3-beam semiconductor laser
pickup
D/A converter 1-bit D/A converter
Frequency
response 20 - 20,000 Hz
Dynamic range 90 dB (1 kHz)
Frequency range FM: 87.5 - 108 MHz
AM: 530 - 1,720 kHz
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 0.3 % (WRMS)
Type 3-way 4-speaker system with passive radia-
tor
Super tweeter 2
2" (5 cm) Tweeter
6-1/2" (16 cm) Woofer
6-1/2" (16 cm) Passive radiator
Maximum input
power 340 W
Rated input power 170 W
Impedance 6 ohms
Dimensions Width: 10-7/8" (277 mm)
Height: 13" (330 mm)
Depth: 10-3/4" (273 mm)
Weight 11.2 lbs. (5.1 kg)/each
General
Amplifier
Power source AC 120 V, 60 Hz
Power
consumption 142 W
Dimensions Width: 10-5/8" (270 mm)
Height: 13" (330 mm)
Depth: 13-15/16" (355 mm)
Weight 18.3 lbs. (8.3 kg)
Output power 170 watts minimum RMS per channel into 6
ohms from 60 Hz to 20 kHz, 10% total har-
monic distortion
Output terminals Speakers: 6 ohms
Headphones: 16 - 50 ohms (recommended:
32 ohms)
Input terminals Video/Auxiliary (audio signal): 500 mV/47 k
ohms
General
Amplifier
Power source AC 120 V, 60 Hz
Power
consumption 142 W
Dimensions Width: 270 mm (10-5/8")
Height: 330 mm (13")
Depth: 355 mm (13-15/16")
Weight 8.3 kg (18.3 lbs.)
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
Tuner
Cassette deck
Type 3-disc multi-play compact disc player
Signal readout Non-contact, 3-beam semiconductor laser
pickup
D/A converter 1-bit D/A converter
Frequency
response 20 - 20,000 Hz
Dynamic range 90 dB (1 kHz)
Frequency range FM: 87.5 - 108 MHz
AM: 530 - 1,720 kHz
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 0.3 % (WRMS)
Type 3-way 4-speaker system with passive radia-
tor
Super tweeter 2
5 cm (2") Tweeter
16 cm (6-1/2") Woofer
16 cm (6-1/2") Passive radiator
Maximum input
power 340 W
Rated input power 170 W
Impedance 6 ohms
Dimensions Width: 277 mm (10-7/8")
Height: 330 mm (13")
Depth: 273 mm (10-3/4")
Weight 5.1 kg (11.2 lbs.)/each
SPECIFICATIONS
CD-E88 (For U.S.A.)
Specifications for this model are subject to change without
prior notice.
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
CD-E88 (For Canada)
CP-E88 (For U.S.A.) CP-E88 (For Canada)

CD-E88
– 4 –
NAMES OF PARTS
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
3
4
5
2
1
6
11
9
7
8
10
12
16
14
15
17
13
22
23
24
25
18
19
20
21
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
Note:
This product is equipped with a cooling fan inside, which begins to
run at a specified volume level for better heat radiation.
2
13
4
5
13
23456791 8
12
10
11

– 5 –
CD-E88
1
2
4
5
6
7
8
9
10
14
11
312
13
17
18
19
20
21
15
16
Remote control
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 re-
mote control only.
1. Super Tweeters
2. Woofer
3. Tweeter
4. Passive Radiator
5. Speaker Wire
1
4
3
5
2
CD-E88
CP-E88

CD-E88
– 6 –
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
the CD tray cover, and close.
(Note 1)
2. Screw ...................... (C1) x1
3. Hook........................ (C2) x3
4. Hook........................ (C3) x2
5. Socket ..................... (C4) x2
4 Rear Panel with 1. Screw ...................... (D1) x7 6-2
Fan Motor 2. Socket ..................... (D2) x1
5 Main PWB 1. Screw ...................... (E1) x3 6-2, 7-1
2. Socket ..................... (E2) x3 7-1
3. Flat Cable ............... (E3) x1
4. Flat Wire.................. (E4) x1
6 Front Panel 1. Screw .......................(F1) x1 7-1
2. Hook.........................(F2) x2
3. Flat Wire...................(F3) x1
7 Display PWB 1. Knob........................ (G1) x1 7-2
2. Screw ....................(G2) x10
3. Flat Cable ............... (G3) x1
8 Tape Mechanism 1. Open the cassette holder. 7-2
2. Screw...................... (H1) x5
9 Headphones PWB 1. Screw ....................... (J1) x1 7-2
10 Turntable 1. Hook........................ (K1) x2 7-3
2. Stabilizer Holder ..... (K2) x1
11 Loading Tray 1. Turn fully the lock lever in the 6-3
arrow direction .
2. Push the loading tray backward 7-4
to engage the claw with the
groove and remove it in the
direction of the arrow ... (L1) x6
12 CD Servo PWB 1. Screw ......................(M1) x2 7-5
(Note 2) 2. Hook........................ (M2) x1
3. Socket ..................... (M3) x4
13 CD Mechanism 1. Hook........................ (N1) x2 7-6
2. Hook........................ (N2) x2
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.Takeoffnylon bands orwireholderswhere they need to
beremovedwhendisassemblingtheunit.Afterservicing
theunit,besure to rearrange theleadswherethey were
before disassembling.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 6-2
STEP REMOVAL PROCEDURE FIGURE
Figure 6-1
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
the hole on the loading tray bottom.
2. After that, push forward the Loading tray.
Note 2:
1. After removing the connector for the optical pickup from the
connector,wraptheconductivealuminiumfoilaroundthefrontend
of the connector so as to protect the optical pickup from electro-
static damage.
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
movement.
(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
Figure 6-3
Lock Lever
CD Player Unit
(Bottom View)
CD-E88
CD-E88

– 7 –
CD-E88
Figure 7-1
Figure 7-2
Figure 7-3
Figure 7-4
Figure 7-5
Figure 7-6
(F1)x1
ø3x10mm
Headphones
PWB
(E4)x1
Front
Panel
(E1)x1
ø3x6mm
(F2)x1
(F2)x1
(E2)x1
(F3)x1
(E3)x1
(E2)x2
Main PWB
Transformer
PWB
Power PWB
(G3)x1
Display PWB
Open
Cassette
Holder
Tape
Mechanism
(H1)x5
ø3x10mm
Lug Wire
Front Panel
Headphones
PWB
(J1)x1
ø3x10mm
(G2)x10
ø3x10mm
(G1)x1
CD Player Unit
Loading
Tray
(K2)x1
(K1)x2
Turntable
(L1)x3
3
(L1)x3 Loading Tray
1
2
Loading
Tray
(M1)x2
ø3x10mm
(M3)x2
CD Servo
PWB
(M2)x1
(M3)x2
CD
Mechanism (N2)x2
(N1)x1
(N1)x1 Loading Tray

CD-E88
– 8 –
Figure 8-1
Figure 8-3
(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
(A1)x4
ø4x40mm
Speaker Box
(A2)x1
Screwdriver
Driver should
be pried away
from Speaker Box.
(B1)x1
Speaker Box
Figure 8-2
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
STEP REMOVAL PROCEDURE FIGURE
CP-E88

– 9 –
CD-E88
Figure 9 BLOCK DIAGRAM (1/3)
IC
807977
7170
47 46
4542
4118 109875
CNP4
19
28
37
40
26
23
22
21
20
50
51
55
75
69
57
56
49
48
67
66
65
64
63
62
61
CONT 5
DRIVER
SPIN/SLED
FOCUS/TRACKING/
LA6574H
IC2
SPO
SLDO
FD
TO
VCC2
IC1
LC78646E
CD SERVO
LCHO
RCHO
CONT3 CONT2
SLDO
SPDO
FD0
TD0
LDD LDS TIN2 TIN1 FIN2 FIN1 RVDD LVDD XVDD ADAVDD VVDD RFVDD
XIN
XOUT
DRF
VRES
VWRQ
DO
DI
CL
CE
TO DISPLAY SECTION
CNS601
TO MAIN SECTION
BI4
CNP5
CNP6
SW3
DISC
NUMBER
SW2 CLAMP
SW1
OPEN/CLOSE
M3
T/T UP/DOWN
LOADING MOTOR
D_GND
PICKUP UNIT
IN
PICKUP
SW4
MOTOR
SPINDLE
M1
MOTOR
SLED
M2
COIL
TRACKING
FOCUS COIL
16.9344 MHz
XL1
+6.5V
+5V
Q4
DRIVER
LASER
+3.3V
CONSTANT
VOLTAGE
+3.3V
+3.3V
Q1
+5V
R-CH AGND L-CH D5V
WRQ DRF CE DO CL DI CLAMP SW
A5V
O/C_SW CD RES DISC NO
CNS4
+
–
+7V
(+B6) (+B6)
(+B7)
29
12
22
1
15131724 28 27 32
30
26
9 10 11 87654
871 2 3 4 5 6 1031 987652 4 2 31 4 65
2 31 4 65
2 31 4 65
6
43
M
M
M
44
DGND

CD-E88
– 10 –
Figure 10 BLOCK DIAGRAM (2/3)
IC101
AN7345K
PLAYBACK AND RECORD/
PLAYBACK AMP.
R
L
R
L
JK690
VIDEO/AUX IN
FM
+B +B4
CLK
+B4
AM IF
OSC BUFF
AM LOOP
ANTENNA
FM IF
OSC
FM
B.P.F
BI601
CNS601 ATT
–20dB
Q106
Q103-
Q108
Q107
Q602
Q601
Q603
Q604
X351
456 kHz
10.7 MHz
450 kHz
FM
ANTENNA
REC/PLAY
CLK
CE
DI
SYSTEM
MUTE
DO DI CE
MO/ST
SWITCHING +B4
FM/AM
PLL(TUNER)
LC72131
IC302
OUT
FM/AM
L
R
BIAS
T1/T2
MUTING
P.B.
REC.
AC BIAS
L
L
R
R
R
L
TAPE
TUNER
CD
P.B.
CNP5
FROM CD SECTION
HEAD
ERASE
SWITCHING
SWITCHING
SWITCHING
BIAS
Q113
Q114
Q112
Q110
SWITCHING
Q109
OSC
BIAS Q111
L103
Q105
Q106
REC./P.B. HEAD
TAPE 2
P.B. HEAD
TAPE 1 R-CH
L-CH
AUDIO PROCESSOR
LC75341
IC601
+B4
R
L
L
R
REC.
R
L
L NF
R NF
R REC.
L REC.
POP REDUCE
R NF
L NF
SWITCHING
L(T2)
R(T2)
R(T1)
L(T1)
R
L
FM/AM
MPXIN
STEREO
AM RF IN
AM OSC IN
FM
Q360
VT
OSC
X352
4.5 MHz
COVERAGE
AM BAND
AM TRACKING
T303 T306
Q302
MO/STVCO
DET
FMFM+BGNDAM IF
CF351
FM/AM IF MPX.
IC303
LA1832S
FM IF DET./
FM MPX./AM IF
AM MIX
CF352 T351
RF
FM
OSC
FM
L312 T301
CF303T302
IC301
TA7358AP
FM FRONT END
BF301
4
22
3
24
2
1
81817
4
9
10
18
11
16
3
15
10
9
7
23
14
12
13
11
2
33
20
19
7
18
8
17
13
21
4
5
2
24
23
6
9
16
15
12
11
1
513
8432
1
21
7
9 85 17
6
21
21
20 22 11
17
15
9
6
5 7
13
14
12
5
1
16
23
4
7
H/N
P.B.
REC.
T1/T2
T1/T2
416
21
R-CH
L-CH
Q706
Q707
Q708
TAPE
MECHANISM
ASS'Y
MOTOR
DRIVER
SOLENOID
DRIVER
+B3
+B3
Q711
Q712 +B3

– 11 –
CD-E88
Figure 11 BLOCK DIAGRAM (3/3)
PT841
SUB POWER
TRANSFORMER
D842~
D845
~~ ~
IC854
AN78L05 +5.6V
+B5
+B PROTECT
+B2 D801
VL+
VL–
PT801
MAIN POWER
TRANSFORMER
F805
5A/125V
+B6 D803
M12
IC851,IC852,IC853:
VOLTAGE REGULATOR
IC855
+B3
KTC2026
Q905
Q710
KIA7812AP
KIA7810AP
D905
AC 120 V, 60 Hz
–VF
VF1
VF2
Q801
+5V
KIA7805AP
IC852
+B4
+B7
+B1
–B1
–B2
+B6
+B3
+B5
+B4
R
L
T
B
+B5
+B5
RX701
SENSOR
REMOTE
D804
D802
RL914
JK701
HEADPHONES
M901
FAN MOTOR
SO901
SPEAKER
TERMINAL
M
Q906
Q709
Q904
Q901
Q903
Q902
D906
Q
602
Q
601
Q603
Q604
IC853
IC851
POWER AMP.
STK41243
IC901
A+10V
LD+7V
2A/125V
F803
2A/125V
F804
F801
5A/125V
5A/125V
F802
VH+
VH–
L-OUT
R-OUT
CLK
4.194304 MHz
RESET
SP RELAY
ON-OFF
FAN
MOTOR DRIVER
LED
DRIVER
MAIN
AC POWER
SUPPLY CORD
REC/PLAY
VLOAD
RESET
GROUND
+B5 +B5
+B5
+B5
VDD VDD VDD
SP. DET.
SYSTEM
MUTE
-
CE DI DO
XL701
-
BIAS
T1/T2
AVDD
SW721-SW724
SW711-SW718
SW701-SW707
KEY
LED703,
LED704
SECTION
TO CD
T.F.
IC701
IX0553AW
SYSTEM
MICROCOMPUTER
D855
FL DISPLAY
FL701
4527 331 195
79
85
47
80
78
70 38
37
34
63
31
33
29
87
6
1
11
7
8
25
14
18
86
1 2 4 5 41
3
2
1
100
4040
11 1210 15 16 17 20 21 22 23 24
46 30 39
4133
48 1325
- - -
VOLTAGE REGULATOR
VOLTAGE
REGULATOR
RL841
Q841
RELAY
DRIVER

CD-E88
– 12 –
Figure 12 SCHEMATIC DIAGRAM (1/10)
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 29.
0.7V
0V
0V
0V
0.7V
0V 0V
0V
0V 0V
0V
0V 3.4V
3.4V
0V
0V
9.3V
8.6V
9.3V
0V 0.7V
0
0V
0V
0V 0.7V
0.7V
SYSTEM
MUTE
SYSTEM
MUTE
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
17 16 15 14
8 9
10 11
1819
20
5 6 7
23 22 21
2 3 4
24
1
REC_R
+B
T2_R2
L
R
A_GND
L
L
R
R
TO POWER SECTION
P16 1-F
CD_+B
CD_GND
L-CH
A_GND
R-CH
CNP5
TO
CD SERVO
PWB
P21 12-D
T1_R
T1_L
A_GND
M_GND
ERASE
T2_R1
T2_L1
T2_L2
ERASE HEAD
RECORD/
PLAYBACK HEAD
TAPE2
TAPE1
PLAYBACK HEAD
R-CHL-CH
R-CH
L-CH
3
6
3
2
1
4
3
2
6
1
5
7
8
D_GND
LD+7V
LD+7V
A_5V
D+5V
CD_GND
L-CH
A_GND
R-CH
CD_A_GND
CD_D_GND
4
5
7
3
1
6
9
10
11
12
13
14
15
16
17
18
8
7
5
2
4
4
1
5
1
2
6
3
7
3
1
2
– +
– + –
+
– +
– +
– +
–
+
–
+
CCB
INTERFACE
AUX
DECK
TUNER
CD
112K 56K
112K 56K
Hich=CHROME
–
–
+
+
Hich=T1
+
–+
–
Nor/CrO2
RIPPLE
ALC ALC
LSEL0
R1
R2
R3
R4
RSEL0
RIN
RTRE
RBASS
ROUT
VREF
VDD
CLK
L1
L2
L3
L4
LIN
LTRE
LBASS
LOUT
VSS
CE
DI
1
1
2
23
3
+B
+B
+B
IC101
AN7345K
FM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
CD SIGNAL
VIDEO SIGNAL
SWITCHING
SWITCHING
MUTING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
BI601
CNS601
R619
330
R618
330
Q603
KTC3199 GR
R617
2.2K
R616
2.2K
R615
4.7K
R614
4.7K
Q604
KTC3199 GR
Q601
KTC3199 GR
R613
390
R611
2.2K
R610
2.2K
Q602
KTC3199 GR
R612
390
R605
10K C609
1/50
R607
3.9K C607
0.12 C605
0.1
C611
0.0022
C613 1/50
C615 4.7/50
C617 1/50
C619 1/50
C621
1/50
IC601
LC75341
AUDIO PROCESSOR
C651
220P
C652
220P
R602
1K
R601
1K
C653
220P C601
220/1
6
C603
22/50
C608
0.12
C606
0.1
C624
1/50
C622 1/50
C620 1/50
C618 1/50
C616 4.7/50
C614 1/50
C626
0.0022
R608
1.2K
C625
0.0022
R609
1.2K
R620
22K
C640
22/50
R621
22K
C639
1/50
CNP101
CNP102
Q103
KTC3200 GR
Q101
KTC3200 GR
R105
3.3K
R103
2.2K
C105
560P
Q105
KTC3199 GR
R109
4.7K
R107
47K
R108
47K
R110
4.7K
C106 560P
Q106
KTC3199 GR
R112
15K
R101
1K
R102
1K
R114
1K C110
330P
C108
330P
R120
3.9K
R118
100K
C114
0.033
R124
5.6K
C118
47/25
C116
560P
C112
47/25
R122
12K
C120
0.0022
R116
56
C150
47/50
R150
68K
R126
4.7K
Q113
KRC104 M
Q114
KRC104 M
R146
10K R147
10K
R148
4.7K
Q112
KTA1266 GR
C141
100/16
R149
150
R1
3
22
0
R138
10K R139
10K
Q108
KTC3199 GR KT
C
IC101
AN7345K
PLAYBACK
AND
RECORD/
PLAYBACK
AMP.
C128
0.022
C124 270P
C132
47/25
C130
0.0033
R132
100
R130 1.5K
R134
10K
C133 22/50
C134 220/10
R128
5.6K C126
22/50
C107
330P
R113
1K C109
330P
C125
22/50
C131
47/25
C121
0.022
R129
5.6K
C143
3.3/50
R131 1.5K
R127
4.7K
R133
100
C127 0.022
C129 0.0033
C123
270P
R135
10K
R119
3.9K
R117
100K
R123
5.6K
C113
0.033 C115
560P
C117
47/25
R115
56
C111
47/25
R121
12K
C119
0.0022
R111
15K
Q104
KTC3200 GR
Q102
KTC3200 GR
R104
2.2K
R106
3.3K
C104
180P
C101
560P
C102
560P
C103
180P
C623
1/50

– 13 –
CD-E88
Figure 13 SCHEMATIC DIAGRAM (2/10)
78 9 10 11 12
0
V0.7V
0.7V
0V
0V
0V 0V
0V
11.6V
11.6V
0V
0V
19 20 21 22 23 24 25 26 27 28
1
2
3
4
5
6
7
8
9
24
23
22
21
20
19
18
17
16
15
14
13
17 16 15 14 13
8 9
10 11 12
A+10V +B_PROTECT M_+13V SP_RLY SW_5V SP_DET TAPE_A_GND AGND
REC_R
A+10V+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
REC_L
(AUDIO PRO)
D_GND M_GND
SW_5V
S_MUTE
M_+13V
TO TUNER SECTION P15 11-H
+B_PROTECT
–20dB
SP_DET
D_GND
SP_RLY
REC/PLAY
T_T1/T2
T_BIAS
CLK
DI
CE
FFC701
CNP701A
TO
DISPLAY PWB
P18 1-F
DO
11
16
16
15
14
13
12
10
9
8
7
6
5
4
3
2
1
1
A+10V
DGND
DI
CLK
AGND
TUN_L
DO
TUN_R
CE
CHASSIS
R-CH
L-CH
MAIN PWB-A1(1/3)
TO POWER SECTION
P16 1-F
56K
56K
h
=CHROME
–
–
+
+
Nor/CrO2
RIPPLE
ALC ALC
Vcc
R1
R2
R3
R4
RSEL0
RIN
RTRE
RBASS
ROUT
VREF
VDD
CLK
1
23
MUTING
MUTING
SWITCHING
BIAS
BIAS OSC.
OR
C653
220P C601
220/16 C602
0.022
R603
1K
C603
22/50
C608
0.12
C610
1/50
R604
10K
C612
0.0022
R606
3.9K
C606
0.1
C624
1/50
C622 1/50
C620 1/50
C618 1/50
C616 4.7/50
C614 1/50
R642
10K
R643
6.8K
R641
10K
R644
6.8K
C626
0.0022
R608
1.2K
4
9
0
R137
220K
R136
220K
R138
10K R139
10K
Q108
KTC3199 GR Q107
KTC3199 GR
C128
0.022
C124
270P
C132
47/25
C130
0.0033
R132
100
R130 1.5K
R134
10K
C133 22/50 C134 220/10 C135 0.022
C126
22/50
C125
22/50
C131
47/25
5.6K
R131 1.5K
R133
100
C127 0.022
C129 0.0033
270P
R135
10K
C138
0.0082
C137
0.047
(ML)
C140
47/25
Q111
KTC3203 Y
R142
82 (1/2W)
C139
0.039(ML)
R143
47K
L103
330 µH
R144
22K
R145
4.7
Q110
KRC104 M
R141
4.7K
R140
47K
Q109
KTA1266 GR
R158
220
CNP701B
R690
6.8K C690 390P
R691
6.8K C691
390P
R693
33K
R692
33K
JK690
VIDEO/
AUX IN

CD-E88
– 14 –
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 29.
Figure 14 SCHEMATIC DIAGRAM (3/10)
+B
+B
+B
FM OSC. FM IF
FM RF
24
1
21 20
12
22
123
321
1
2
3
6
5
4789
TP301
OSC BUFFER
(HB)
VSS
AOUT
X IN X OUT
AM OSC OUT
FM IF IN
FM
ANTENNA
AM LOOP
ANTENNA
33
2
1
2
1
FM SIGNAL
AM SIGNAL
C302
0.001
D302 DS1SS133
D301 DS1SS133
C338 0.001
C323
0.022
T303
AM ANTENNA
AM BAND
COVERAGE fL
FM BAND
COVERAGE fL
AM TRACKING
C330
15P
(UJ)
C331
0.047
C332
0.022
VD301
SVC348S
C335
560P
T306
AM OSC.
C334
22P
(CH)
R323
68K
R336
10K
IC301
TA7358AP
FM FRONT END
BF301
BAND PASS FILTER
CNP301
C303
10P(CH)
C304
0.01 C305
4.7P
(CH)
R302
10
C306
0.022
C307
10/50
C324
4.7P(UJ)
VD303
SVC211C
C313
22P
(CH)
R309
10K
C310
15P(CH)
T301
T302
C312
0.022
C309
0.001
C320
0.001VD302
SVC211C
D305
DS1SS133
C308
4.7P
(CH)
R311
100K
L312
R313
33K
R314
22
C316
0.022
C314
0.0047
C317
0.001
C315
0.0047 Q302
KTC3194 Y
C318
100P
R325
47K
R327
33
R322
680
CF303
R316
4.7K
C311
18P
C351 0.022
C352 10/50 R351
5.6K
C389 0.0
C397
0.022
R382
150
R381
10K
C
C381
12P(CH)
C394
X352
4.5 MHz
C382
15P(CH)
R375
470
C383
47P
R374 1K C362
R365
10K
C342
0.022
R358
3.9K

– 15 –
CD-E88
Figure 15 SCHEMATIC DIAGRAM (4/10)
78 9 10 11 12
45927 6381
+B
+B
+B
+B
B
181920
212223
24 1617 131415
1
1
2
3
23 456 78 910 11 12
21 20 19 121314
15161718
12345 11
10
9876
22
DI
CE
SWITCHING
TP302
CONT IF FM/AM FM/AM
SD
MO/ST
ST IND
MO/ST
VSS
AOUT
AIN
PD
VDD
FM IN
AM IN
DO CL DI CE
X IN X OUT
IF IN
REG AM IF IN GND SD STEREO FM DET VCC IF OUT PHASE (FM/AM) PHASE
L-CH OUT
R-CH OUT
MPX IN
MPX VCO
FM/AM OUT
VSM
AM LOW CUT
AM RF IN
AM OSC IN
FM AFC
AM OSC OUT
AM MIX OUT FM IF IN
MAIN PWB-A1 (2/3)
AGND
A+10V
DO
CLK
DGND
TUN_R
TUN_L
IC302
LC72131
P13 12- C
TO MAIN SECTION
C351 0.022
C350 0.022
C352 10/50 R351
5.6K
R352
1K
T351
AM IF
C389 0.001
C397
0.022
R382
150
R381
10K
C392
0.001
C387
0.022
R380
1.5K
C393
1/50
R379
2.2K
C380
10/50
3
81
P
(CH)
C394
47/25
L351
100 µH
R377
47K
C386
330P
C385
0.01
X
352
5
MHz
3
82
P
(CH)
R375
470
C383
47P
R372 1K R374 1K R373 1K
R378
1K
R386
22K
R395
47K
R376
1K R360
4.7K
R359
1.8K
R387
5.6K
R384
5.6K
C391
47/25
R383
5.6K
R385
5.6K
Q360
KTA1266 GR
C388
0.001
C384
0.001
R392
270
C395
0.022
C396
100/10
ZD351
DZ5.1BSB
L352
100 µH
CF352
R353
270
C353
0.022
C358
1/50
C357
2.2/50
C356
0.001
C355
22P
R355
3.3K
C370
1/50
C354 0.022
CF351
C399
0.022
C398
100/10
R393
1K
R388
3.9K
C366 0.001 C363 0.022 C364 2.2/50 C365 0.022
C362
3.3/50
C361
0.022
R365
10K
C
342
.022
R358
3.9K
R357
470K
R350
2.7K
X351
456 kHz
C373
0.015
C368
1/50
R356
1K
C374 0.015
C369
27P(UJ)
C371
1/50
C372
1/50
C367
1/50
IC303
LA1832S
FM IF DET./FM MPX./AM IF
R391
270
IC302
LC72131
PLL (TUNER)

CD-E88
– 16 –
Figure 16 SCHEMATIC DIAGRAM (5/10)
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 29.
13V
+B
+B
-B
-B
-B
-B
-B
+B
+B
+B
+B
+B
3 1
3 1
3 1
18 17 16 15 14 13 12 11 3456789 10 1
2
2
2
2
LD+7V
A_5V
A+10V
CD_GND
SW_5V
D+5V
+B_PROTECT
AGND(AUDIO PRO)
M_GND
D_GND
CD_D_GND
CD_A_GND
TAPE_A_GND
SP_RLY
(ML)
L
R
VH+
VH– VL+
SP_DET
TO MAIN SECTION
P12 1-B, P13 10-H
10
CHASSIS
FROM
DISPLAY PWB
P19 12-F
1
3
4
5
6
7
8
9
10
11
CHASSIS
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
L_CH
R-CH
SP_DET
A_GND
1
2
3
4
5
6
M_+13V
GND VL+ VL– VH– VH+
–
+
–
+
VL–
+B
+B
+B
+B
+B
+B
+B
+B
C909
0.1(ML)
R909
33K
C908
3.3P(CH)
R907
56K
C905
22/50
R905
560
R906
560 C906
22/50
R903
1K
C907
100P
C910
3.3P(CH)
C913
100P
C912
100/100
R911
56K R904
1K
R913
0.22(3W)
C914
100/100
R912
100(1/4W)
Fusible
C915
100/100
R910
1K
C904
0.001
C903
0.001 C911
100/100
R902
56K
R901
56K
C901
0.1/50 C902
0.1/50
R958
100(1/4W)Fusible
R908
1K
R922
0.1(3W)
C919
0.01(ML)
R921
1.5K
R920
1.8K
Q901
KTC3199 GR
D905
DS1SS133
D906
DS1SS133
Q902
KTC3199 GR
R918
1.5K C917
0.01(ML)
R917
0.1(3W)
R919
1.8K
C916
100/50 C918
100/50 R926
1.5K
(1/2W)
R925
1.5K
(1/2W)
ZD903
DZ12BSB
ZD902
DZ12BSB
D907
DS1SS133
Q904
KTC3199 GR
Q903
KTC3199 GR
C925
47/50
R934
56K
R935
56K
R937
56K
L902
3µH
L901
3µH
R928
39K
R927
39K
C920
3300/85
C921
0.0049/50 C922
0.0049/50
R929
47K
D909
1N4004S
R930
47K
D910
1N4004S
C923
3300/85
BI801
CNS801
FW701
R856
3.3(1/2W)
IC851
KIA7812AP
IC851
KIA7812AP
VOLTAGE
REGULATOR
C864
0.1(ML)
D859
DS1SS133
D858
DS1SS133
R854 22K
C865
10/50
R860
220
IC855
KTC2026
SILICON
R859
22K
ZD852
DZ8.2BSB
C863
22/50
D857
DS1SS133 D852
DS1SS133
D851
DS1SS133 R853
22K
R852
10K C858
IC853
KIA7805AP
VOLTAGE REGULATOR
D855 DS1SS133
C855
0.1(ML)
C854
0.1(ML)
R857
3.3(1/2W)
IC852
KIA7810AP
VOLTAGE REGULATOR
C856
3300/35
R961
1
R916
0.22(3W)
IC901
STK41243
POWER AMP.
C946
0.1/50
C859
0.1(ML)
0.1
C851
0.1
14
15
16
27
28
25
10
22
23
12
11
26
13
21
19
24
17
18
20

– 17 –
CD-E88
Figure 17 SCHEMATIC DIAGRAM (6/10)
78 9 10 11 12
4.4V
0.2V
+B
+B
+B
+B
+B
-
B
-B
-B -B
+B
+B
+B
31
2
L
R
AC_RLY
R
L
R
L
L-CH
GND
R-CH
SP_RLY
M_+13.5V
T.F.
UNSW_
SP_L1CH
SP_R1CH
SP_L1CH_GND
SP_R1CH_GND
5.6V
VL–
VL+
VH–
VH+
6 OHMS MIN
MAIN PWB-A1 (3/3)
R1_OUT
L1_OUT
10
5
2
1
M901
FAN MOTOR
–
+
1
2
M
1
CHASSIS
FROM
DISPLAY PWB
P19 12-F
1
3
4
5
6
7
8
9
10
11
CHASSIS
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9AC POWER
SUPPLY CORD
AC 120 V, 60 Hz
VF1
P_IN
–VF
VF2
1
2
3
4
5
6
HEADPHONES
PWB-A3
1
3
4
5
2
TRANSFORMER
PWB-B2
POWER PWB-B1
FM SIGNAL
44
11
0
3
9
9 GR
C925
47/50
R934
56K
R935
56K
R937
56K
L902
3µH
L901
3µH
F805
5A/125V
RL841
C844
0.047/250
D846
DS1SS133
WTM801
FW802
PT841
SUB POWER
TRANSFORMER
WTM802
C843
0.047(ML)
D842
1N4004S
D843
1N4004S
D844
1N4004S
D845
1N4004S
C842
470/35
Q841
KTC3199 GR C841
1000/6.3
R843
47K
R842
1K
R938
10(1/2W)
R939
10(1/2W)
R941
10(1/2W)
C929
0.1
(ML)
R940
10(1/2W) C928
0.1(ML)
D911
DS1SS133
Q905
KTC3199 GR
R946
47K
RL914
SP RELAY
ON-OFF
FAN MOTOR
DRIVER
R942 560(2W)
R943 560(2W)
R945
1.5K R944
1.5K
Q906
KTC3203 Y
R949
1K
D912
DS1SS133
R950
68K
C931
10/50
R947
15K
CNP971
WTM901 FW901
SO901
SPEAKER
TERMINAL
PT801
MAIN POWER
TRANSFORMER
C811
0.22
(ML)
C810
0.22
(ML)
F802
5A/125V
C809
0.1
(ML)
C808
0.1
(ML) F801
5A/125V
F804
2A/125V
F803
2A/125V
D806
1N4004S C805
22/100
D805
1N4004S
ZD803
DZ30BSB
C803
47/50
C804
220/63
R808
2.2K(1/2W)
R806
47K
Q801
KTA1274 Y
VOLTAGE
REGULATOR
RELAY
DRIVER
R841
220K
R805
47
R804
47 R803
12K
C801
100/35
ZD801
DZ6.2BSA
C802
47/50
CNP802
R801
100K
R844
82
R802
47K
C807 0.1(ML)
D804
1N4004S
D803
1N4004S
C806
0.1(ML)
D802
D10XB60F
D801
D10XB60F
CNP801
BI801
CNS801
FW701
CNS971
D853
1N4004S
R858
220
IC854
AN78L05
VOLTAGE
REGULATOR
D856
DS1SS133
C861
0.022
JK701
HEADPHONES
CNP705

CD-E88
– 18 –
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 29.
Figure 18 SCHEMATIC DIAGRAM (7/10)
TAPE MECHANISM
PWB-F
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
37 36
33
32
31
45 44 43 42 41 40 39 38
50 49 48 47 46
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
+10V
FOR_PLY_LED
REV_PLY_LED
STOP LED
JOG2 JOG1
O/C_SW
M_+13V
ILU_LED1
DIST0/S20
DIST1/S19
DIST2/S18
DIST3/S17
DIST
DISC NO SW V_ONLY
SOL
SOL
S21
S11
S10
CD CLAMP SW
T1 RUN
MIC SW
KARAOKE LATCH
MPEG POWER
ESS ACK
ESS STB
ESS DI
ESS DO
NP NX NX NX NX NX NX NX F F
S1 S2 S3 S4 S5
S12
S13
S14
KE
Y
KE
Y
KE
Y
P_IN REMOCON VSS SMUTE T_SOL_A T_MOTOR TIMER LED VDD AC_RLY
G9 G8 G7 G6
P21 P20 P19 P18 P17 P16 P15 P14 P13 P12 P11 P10 P09 P08 P07 P06 P05 P04 P03 P02 P01 G06 G07 G08 G09
T_SOL_B
T2 RUN
FPA/FPB
S6 S7 S8 S9
VLOAD
S15
S16
SP_RLY
SP DET
T2 RUN
+MTR
SOL2
SOL1
GND
T1 RUN
F_REC
+
–
M
5
76
7
7
6
45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
A+10V
S_MUTE
SW_5V
M_+13V
PROTECT
SP_RLY
D_GND
REC/PLAY
T_T1/T2
T_BIAS
DI
CE
CLK
DO
SP_DET
–20dB
15
1
2
3
4
6
5
7
8
9
10
11
16
TO
MAIN PWB
P13 12-G
CNP701B
LED B PWB-A5
LED A PWB-A4
1
1
2
1
2
1
2
2
1
2
2
1
1
4
3
2
1
4
3
5
2
1
14
13
12
1
23
+B +B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
MOTOR DRIVER
SOLENOID
DRIVER
SOLENOID
DRIVER
BI703
LED703
A503BC2E CNS703
BI704
CNS704
CNP704
R749
330
CNP703
R751
330
Q710
KRC102 M
LED DRIVER
C707
1/50
R794
1.5
FL701
FL DISPLAY
R762
10K
R730
1K
R725 1K
R764 1K R758 1K R731 10K
R736 1K R733 1K R721 1K R724 1K
R726 680 R727 680
R728 2.2K R729 560
R735 1K
R746 1K
R734 1K
IC701
IX0553AW
SYSTEM MICROCOMPUT
R757
1K
R750
47K
R770
10K
R772
10K
R732
1K
R776
10K
R775
10K
R780
10K
R765
4.7K
R761
10K
R756
4.7K
LED701
304VT2E1
JOG701
JOG VOLUME
C710 0.0047
C709 0.0047
R779
10K
R777
10K
R778
10K
Q706
KTA1273 Y
Q707
KTA1273 Y
Q708
KTA1273 Y
CNP702
FFC702
C712
47/25
D710
DS1SS133 D709
DS1SS133
R740
4.7K
CNP701A
FFC701
LED704
A503BC2E
1
3
2
23
1Q711
KRA107 M
Q712
KRC104 M
D716
1SS133

– 19 –
CD-E88
Figure 19 SCHEMATIC DIAGRAM (8/10)
78 9 10 11 12
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
123
37 36 35 34 33
33
32
31
32 31
4
43 42 41 40 39 38
7
88 89 90 91 92 93 94 95 96 97
100
9998
DISC_NO SW/
DRF
CD CLK
T2_PLAY SW/
LVL_DET
KEY 0
KEY 1
KEY 2
SPAN
CD RESOUT
CD CLAMP SW
FPA/FPB SW
PROTECT
NP
5V BACK UP
T-BIAS
T_T1/T2
VDD
X1
X2
AVDD
RESET
CD CE
CD DI
S1 S2 S3 S4
S5
CE
DSA_STB
REC/PLAY
VPP/IC
CD DO
CLK
DI
DO
AVSS
TUN SM
KEY 2
KEY 1
KEY 0
P_IN REMOCON VSS SMUTE T_SOL_A
T
_
MOTOR
G9 G8 G7 G6 G5 G4 G3 G2 G1
VDD
P05
P04 P03 P02 P01 G01 G02 G03 G04 G05 G06 G07 G08 G09 F
T_SOL_B
–20dBATT
XT2
AVREF SP DET
WRQ
DSA DATA
DSA_ACK
8
17 16 15 14 13 12 11 10 987654321
AC RELAY
TO
POWER PWB
P17 7-G
CNP802
VF2
–VF
VF1
P_IN
UNSW5.6
11
66
O/C_SW
DISC NO
WRQ(DSP)
CLAMP SW
CD DO
CD DI
CD CE
CD CLK
DRF
CNP6
TO
CD SERVO PWB
P21 12-B
RES OUT
1
10
1
4
7
8
9
6
5
3
3
2
5
6
7
9
8
4
DISPLAY PWB-A2
10
11
1
23
+B
+B
+B
+B
+B
+B
+B
+B
RESET
R795
1.5
C701
1/50
C702
220/10
R706 1K
R763 1K
R702 1K
R703 1K
R705 1K
R704 1K
R709 1K
R710 1K
R711 1K
R712 1K
R739 1K
R713 1K
R714 1K
R715 1K
R716 1K
R717 100
R769 1K
C721
0.022
C704
15P
XL701
4.194304 MHz
R708
1K
C705
18P
C720
0.022
R747
4.7K
R759
5.6K
R791
4.7K
R722
1K
R725 1K
R736 1K R733 1K
R718 1K R719 1K R720 1K
R721 1K R724 1K
R726 680 R727 680
IC701
IX0553AW
M MICROCOMPUTER
R765
4.7K
R761
10K
R756
4.7K
R768
10K
R773
10K
L701
100 µH
BI701 CNS701
WTM701 FW701
SW706
TIMER/
SLEEP
SW704
TUNING
DOWN
SW705
TUNING
UP
SW703
REC/
PAUSE
SW702
MEMORY/
SET
SW701
POWER SW707
CLOCK
RD05
2.2K RD06
2.7K
RD03
1K RD04 1.5K
RD02
820
RD01
680
SW717
FAST
FORWARD
SW711
CD SW712
TUNER SW713
VIDEO/
AUX
SW718
FAST
REWIND
SW714
TAPE SW715
STOP SW716 PLAY
RD12
1K
RD11
820 RD13 1.5K RD16
3.9K
RD14
2.2K RD15
2.7K
RD10
680
SW723
OPEN/
CLOSE
SW721
X-BASS/
DEMO
SW722
EQUALIZER SW724
DISC
SKIP
RD21
1K
RD19
680 RD20 820
D713
DS1SS133
D714
DS1SS133
C714
3.3/50
RX701
GPUM271
C717
47/25
R781
47K R783
100
Q709
KRC102 M
R782
100K
D715
DS1SS133
C715
0.01
D712
DS1SS133
D711
DS1SS133
LED701
304VT2E1
R766
10K
R767
10K
0
.
0047

CD-E88
– 20 –
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 29.
Figure 20 SCHEMATIC DIAGRAM (9/10)
CD MOTOR PWB-D
1
2
4
1
6
5
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
80 79 78 77 76 75 7
4
2
7
21 22 23 24 25 26
15 16 17 18 19 20 21 29 22 23 24 25 26 27 28
14 1234567
30
8
9
10111213
(OS)
VCC
VREF
VIN4 GND
VCONT
VIN2 VIN3
REG-OUT
REG-IN
VIN1 VCC1 VO+ VO– VO2– VO2+ VO3+ VO3– VO4– VO4+ VCC2 VO5+
FWD
REV
VO5–
GNDGND
TP2
TP1
M– M+
SPO VCC VREF TO FD
C
F
B
A
E
VREF
VCC
CD SERVO PWB-C
LDD
LDS
FR
VVDD
PCKIST
VVSS
PDO2
CONT5 CONT4 GPDAC SLDO SPDO
FDO
CONSTANT
VOLTAGE
TDO
REF1
VREF
ADAVSS
ADAVDD
JITTC
RFMON
TE
TEC
FE
TIN2 F
TIN1 E
FIN2 B
FIN1 A
RSVSS
RFVDD
RF
EFMIN
LASER DRIVER
SLCIST
SLCO
GND
FO–
LD
VR
PD
FO+
TR+
TR–
2
5
4
8
3
6
7
1
6
3
7
1
2
5
8
4
6
3
7
1
2
5
8
4
GND
PUIN
SL+
SL–
SP–
SP+
HPC1LX
PICKUP UNIT
GND
TR–
TR–
TR+
TR+
FO+ FO+
FO– 4
8
5
2
1
7
3
6
5
3
6
2
7
1
4 5
3
6
2
7
1
4 5
3
6
2
7
1
4 5
3
6
2
7
1
4
VREF
VCC
E
A
B
F
C
PD
LD
+
+
–
–
M
M
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
VR
+B
+B +B
+B
+B
+B
+B
+B
+B +B
+B
CD SIGNAL
CNP1
CNS1A
CNS1B
CNS2A
CNS2B
CNS3A
CNS3B
R6 22K
R5 8.2K
R4 8.2K
R3 22K
R1
8.2K
R2
8.2K
C2
0.01
C1
47/25
R9
10
Q1
KTA1266 GR
C3
47/25
C4
0.001
R7
47
C8
0.0027
R11
10K
C5
0.047(ML)
C6
0.1
C19
0.022
R10
27K
R12
330
C45
22P(CH)
C20
0.001
C21
0.001
C43
0.022
C9
3.3/16
C11
0.22/50
C10
10/25
C12
100P
R15
1K
R14
1K R1
1
K
R16
1K
R13
15K
C39
100/10 C40
100/10
Q4
KTA1271 Y
L
C
IC2
LA6574H
FOCUS/TRACKING/SPIN/
SLED DRIVER
C48
0.001
C41
100/10
CNP3 CNP3A
CNP2
C38
0.01
C17
100/10
R8
10K
C2
C2
C3
C3
C
2
C36
0 22/50
R41
12K
R40
680
C37
0.1
R42
1.2K
M1
SPINDLE
MOTOR
M2
SLED
MOTOR
SW4
PICKUP IN