Sharp CD-E700, CD-E77, CD-E88 Service Manual

CD-E700/CD-E77

No. S1301CDE700//

CONTENTS

Page

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

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

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

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

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

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

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 14

TYPES OF TRANSISTOR AND LED............................................................................................................................... 14

BLOCK DIAGRAM ........................................................................................................................................................... 15

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 18

VOLTAGE ........................................................................................................................................................................ 35

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 36

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

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

FL DISPLAY..................................................................................................................................................................... 47

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.

Illustration: CD-E700/CD-E77

MINI COMPONENT SYSTEM

MODEL CD-E700

CD-E700 Mini Component System consisting of CD-E700
(main unit) and CP-E700 (speaker system).

MINI COMPONENT SYSTEM

MODEL CD-E77

CD-E77 Mini Component System consisting of CD-E77 (main
unit) and CP-E77 (speaker system).

CD-E700/CD-E77

– 2 –

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.

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.

TO EXPOSED
METAL PARTS

CONNECT TO
KNOWN EARTH
GROUND

TEST PROBE

0.15 µF

1.5 kohms
10 W

VTVM

AC SCALE

– 3 –

CD-E700/CD-E77

General

Amplifier

Power source AC 120 V, 60 Hz
Power

consumption

110 W

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

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

Weight 16.1 lbs. (7.3 kg)

Output power 125 watts minimum RMS per channel into 6

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

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
2" (5 cm) Tweeter
6-1/2" (16 cm) Woofer
6-1/2" (16 cm) Passive radiator

Maximum input
power

250 W

Rated input power 125 W
Impedance 6 ohms
Dimensions Width: 10-7/8" (277 mm)

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

Weight 9.9 lbs. (4.5 kg)/each

General

Amplifier

Power source AC 120 V, 60 Hz
Power

consumption

110 W

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

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

Weight 7.3 kg (16.1 lbs.)

Output power RMS: 250 W (125 W + 125 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

250 W

Rated input power 125 W
Impedance 6 ohms
Dimensions Width: 277 mm (10-7/8")

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

Weight 4.5 kg (9.9 lbs.)/each

SPECIFICATIONS

CD-E700/CD-E77 (For U.S.A.)

CP-E700/CP-E77 (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-E700/CD-E77 (For Canada)

CP-E700/CP-E77 (For Canada)

CD-E700/CD-E77

– 4 –

NAMES OF P ARTS

CD-E700/CD-E77

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

1

3
4

5

13

23456791 8

12

10
11

– 5 –

CD-E700/CD-E77

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

1

2

4

5

6
7
8

9

10

14

11

3

12

13

17
18

19

20
21

15
16

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

1. Super Tweeters

2. Woofer

3. Tweeter

4. Passive Radiator

5. Speaker Wire

1

4

3

5

2

CD-E700/CD-E77

CP-E700/CP-E77

CD-E700/CD-E77

– 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. Cover ...................... (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. 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.

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

CD-E700/CD-E77

CD-E700/CD-E77

(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)

– 7 –

CD-E700/CD-E77

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-E700/CD-E77

– 8 –

Figure 8-1

Figure 8-3

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-E700/CP-E77

(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

– 9 –

CD-E700/CD-E77

REMOVING AND REINSTALLING THE MAIN PARTS

TAPE MECHANISM SECTION

Perform steps 1 to 6 and 8 of the disassembly method to
remove the tape mechanism.

How to remove the record/playback and erase
heads (TAPE 2) (See Fig. 9-1)

1. When you remove the screws (A1) x 2 pcs., the recording/
playback head and three-dimensional head of the erasing
head can be removed.

How to remove the playback head (TAPE 1)
(See Fig. 9-2)

1. When you remove the screws (B1) x 2 pcs., the playback
head can be removed.

How to remove the pinch roller (TAPE 1/2)
(See Fig. 9-3)

1. Carefully bend the pinch roller pawl in the direction of the
arrow <A>, and remove the pinch roller (C1) x 1 pc., in the
direction of the arrow <B>.

Note:

When installing the pinch roller, pay attention to the spring
mounting position.

How to remove the belt (TAPE 2)
(See Fig. 9-4)

1. Remove the main belt (D1) x 1 pc., from the motor side.

2. Remove the FF/REW belt (D2) x 1 pc.

How to remove the belt (TAPE 1)
(See Fig. 9-4)

1. Remove the main belt (E1) x 1 pc., from the motor side.

2. Remove the FF/REW belt (E2) x 1 pc.

How to remove the motor (See Fig. 9-5)

1. Remove the screws (F1) x 2 pcs., to remove the motor.

Figure 9-1

Figure 9-2

Figure 9-3

Figure 9-4Figure 9-5

(A1) x 2
Ø2 x 6mm

TAPE 2

Record/Playback
Head

Erase Head

Clutch Ass'y

(B1)x2
Ø2x9mm

TAPE 1

Playback
Head

Clutch Ass'y

Pinch Roller
(C1)x1

<A>

<B>

Pinch
Roller
Pawl

Pull

TAPE 2

TAPE 1
Main Belt
(E1)x1

TAPE 2
Main Belt
(D1)x1

TAPE 1

Main Belt
(D1)x1

Main Belt
(E1)x1

FF/REW
Belt
(D2)x1

FF/REW
Belt
(E2)x1

Motor

Motor

(F1) x 2

Ø2.6 x 5mm

Tape
Motor

Clutch Ass'y

CD-E700/CD-E77

– 10 –

How to remove the pickup unit (See Fig. 10-2)

1. Remove the stop washer (B1) x 1 pc., to remove the gear
(B2) x 1 pc.

2. Remove the screws (B3) x 2 pcs., to remove the shaft
(B4) x 1 pc.

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 so as to protect the optical pickup from
electrostatic damage.

Figure 10-2

CD MECHANISM SECTION

Perform steps 1, 2, 3, 10, 11,12 and 13 of the disassembly
method to remove the CD mechanism.

How to remove the loading motor
(See Fig. 10-1)

1. Bend the hooks (A1) x 5 pcs., to remove the loading motor.

Figure 10-1

ADJUSTMENT

MECHANISM SECTION

••

••

• Driving Force Check

Torque Meter Specified Value

Play: TW-2111 Tape 1: Over 80 g

Tape 2: Over 80 g

••

••

• Torque Check

Torque Meter

Tape 2

Play: TW-2111 30 to 80 g.cm 30 to 80 g.cm
Fast forward: TW-2231 — 70 to 180 g.cm
Rewind: TW-2231 — 70 to 180 g.cm

Specified Value

Tape 1

Specified

Value

Adjusting

Point

Instrument

Connection

Test Tape

Normal MTT-111 Variable 3,000 ± 30 Hz Speaker
speed Resistor in Terminal

motor. (Load

resistance:
6 ohms)

••

••

• Tape Speed

Figure 10-3

(B3)x2
ø2.6x6mm

Shaft
(B4)x1

Stop Washer
(B1)x1

Gear
(B2)x1

CD Mechanism

Pickup
Unit

TAPE MECHANISM

Tape
Motor

Variable Resistor in motor

(A1)x5

Loading
Motor PWB

Loading

Motor
Loading
Tray

– 11 –

CD-E700/CD-E77

Figure 11-2

CD ERROR CODE DESCRIPTION

Error Explanation

01

When Pickup set inner position, inner switch
cannot detect 'ON' level for 10 secs.

When tray moves to Open/Close, Open/Close switch

10*

cannot detect 'ON' level for 7 secs.
When disc table rotate to target position.
Clamp switch cannot detect 'ON' level for 7 secs.

When disc table set to Disc1 position for 1 st time,

11* "CLAMP SW", "DISC NO SW" and "OPEN/CLOSE"

cannot detect 'ON' level for 14 secs.

31

When it changes to CD function, DSP cannot read
initial data.

T

T

EFBL

FDO

TE

Stopped

CH1=500 mV

DC 10:1

CH2=200 mV

DC 10:1

CH3=1 V

DC 10:1

500 ms/div

(500 ms/div)

NORM:20 kS/s

1

2

3

=Record Length=

Smoothing : ON CH1 : 0.000 V

CH2 : 0.000 V

Main : 100K
Zoom : 2k

Mode : SINGLE
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs

CH3 : 0.00 V
CH4 : 0.00 V

BW : FULL

=Trigger==Filter= =Offset=

CH2
v/DIV
200 mV

1999/04/05 20:26:47

Test Stage Frequency Frequency

Display

Setting/

Adjusting

Parts

Instrument

Connection

CD SECTION

••

••

•

AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

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

TUNER SECTION

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

AM IF 450 kHz 1,720 kHz T351 *1
AM Band — 530 kHz (fL): T306 *2

Coverage 1.1 ± 0.1 V
AM Tracking 990 kHz 990 kHz (fL): T303 *1

*1. Input: Antenna Output: TP301
*2. Input: Antenna Output: Speaker terminal

••

••

• FM RF

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

FM Band — 87.50 MHz T301 (fL): *1
Coverage 1.3 V ± 0.1 V

FM RF 98.00 MHz 98.00 MHz L312 *2

(10-30 dB)

Test Stage Instrument

Connection

Frequency Frequency

Display

Setting/

Adjusting

Point

Figure 11-1 ADJUSTMENT POINTS

Items adjusted automatically

(1) Offset adjustment (The offset voltage between the head

amplifier output and the VREF reference voltage is
compensated inside the IC.)

* Focus offset adjustment
* Tracking offset adjustment

(2) Tracking balance adjustment (waveform drawing

Fig.11-2 EFBL)

(3) Gain adjustment (The gain is compensated inside the IC

so that the loop gain at the gain crossover frequency will
be 0 dB.)

* Focus gain adjustment
* Tracking gain adjustment

• Adjustment
Since this CD system incorporates the following automatic
adjustment functions, readjustment is not needed when
replacing the pickup. Therefore, different PWBs and pickups
can be combined freely.
Each time a disc is changed, these adjustments are
performed automatically. Therefore, playback of each disc
can be performed under optimum conditions.

••

••

• FM IF

Signal generator: 10.7 MHz, FM modulated

IF 10.7 MHz 98 MHz T302 *1

(Turn the
core of trans­former T302
fully counter­clock wise)

Test Stage

Instrument
Connection

Frequency Frequency

Display

Setting/

Adjusting

Point

*1. Input: Antenna Output: TP301

AM IF

FM RF

TP301

TP302

FM IF

T301

T302

R356

T303

T306

IC301

L312

T351

CNP301

AM/FM LOOP

ANTENNA

FM BAND
COVERAGE fL

AM BAND
COVERAGE fL

AM TRACKING
fL

MAIN PWB

1

R381

* 'CHECKING'
If Error is detected, 'CHECKING' will be display instead of 'ER­CD**' display. 'ER-CD**' display will only be display when
error had been detected for the 5 th times.

CD-E700/CD-E77

– 12 –

TEST MODE

• Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
<X-BASS> + <CD> + <POWER> TEST: CD operation test.

Function: -CD test mode.

-Enter test mode.

C D T E S T

OPEN/CLOSE operation is using manual.

<< >>, << >> buttons make pick's slide possible.

Do TOC IL. Do normal play.
When these following key is input
into PLAY key, track number can
be appoint directly.

<<PLAY>> key input.

<<MEMORY>> key input.

<< 1 >> key: Track 4
<<

2>> key: Track 9

<<

3>> key: Track 15

<<STOP>> key input.

STOP

Laser ON.

<<MEMORY>> key input.

Tracking OFF play at that
specific point.

<<MEMORY>> key input.

Tracking ON play from
that specific point.

<<STOP>> key input.

STOP

IL isn't done

VOL — Last memory
BAL — CENTER
P.GEQ — FLAT
X-BASS — OFF

To cancel : Power OFF

Sliding the PICKUP with
<<

>>, << >> button

must only be in STOP mode.

<<MEMORY>>
key input.

Adjustment result
automatically will
display as below.
for each 2 sec :
a) "FOFF_XX"
b) "TOFF_XX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"

explanation:
a) Focus off set = "FOFF_XX"
b) Tracking off set = "TOFF_XX"
c) Tracking balance = "TBAL_XX"
d) Tracking Gain = "TGAN_XX"
f) Focus Gain = "FGAN_XX"
g) RF level shift = "RFLS_XX"

Adjustment result automatically will
display as below for each 2 sec :
a) "FOFF_XX"
b) "TOFF_XX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"

<<MEMORY>> key input.

– 13 –

CD-E700/CD-E77

Standard Specification of Stereo System Error Message Display Contents

Error Contents DISPLAY Notes
CD Pickup Mechanism Error. 'ER-CD**' 01: PU-IN SW Detection NG.

CD Changer Mechanism Error. 'ER-CD**' 10: Changer Error.

(*) 11: Initial Error.
CD DSP Communication Error 'ER-CD**' 31: DSP COMMUNICATION ERROR
Focus Not Match. 'NO DISC'

TUN PLL Unlock. FM 87.5 MHz PLL Unlock.

(*) CHECKING:
If CD changer mechanism error is detected, 'CHECKING' will be display instead of 'ER-CD**' display 'ER-CD**' will only be display
when CD changer mechanism error had been detected for the 5 th times.

Speaker abnormal detection and +B PROTECTION display

In case speaker abnormal detection or +B PROTECTION had occured, it can be check by pressing 'POWER', 'VIDEO' and 'X­BASS' key twice. Display will show "S** B**". S is referring to speaker abnormal detection and B is referring to +B PROTECTION.
** is in hex valve.

+B PROTECTION is condition when irregular process occur on power supply line.

BEFORE TRANSPORTING THE UNIT

The following process need to be taken after set tapering/parts replacement.

1. Press the Power On Button to enter Powre mode.

2. While pressing down the

button and the X-Bass/Demo button, press the Power button until "CLEAR AL" appears

3. While pressing down the

button and the X-Bass/Demo button , press the Power button until "WAIT"

"FINISHED" appears.

4. Unplug the AC cord and the unit is ready for transporting.

CD-E700/CD-E77

– 14 –

• 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 “ 1 ” ( ) 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.

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 pico-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

SW712 TUNER ON—OFF
SW713 VIDEO/AUX ON—OFF
SW714 TAPE ON—OFF
SW715 STOP ON—OFF
SW716 PLAY ON—OFF
SW717 FAST FORWARD ON—OFF
SW718 FAST REWIND ON—OFF
SW721 X-BASS/DEMO ON—OFF
SW722 EQUALIZER ON—OFF
SW723 OPEN/CLOSE ON—OFF
SW724 DISC SKIP ON—OFF

SW1 OPEN/CLOSE ON—OFF
SW2 CLAMP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW701 POWER ON—OFF
SW702 MEMORY SET ON—OFF
SW703 REC/PAUSE ON—OFF
SW704 TUNING DOWN ON—OFF
SW705 TUNING UP ON—OFF
SW706

TIMER/SLEEP

ON—OFF

SW707

CLOCK

ON—OFF

SW711

CD

ON—OFF

TYPES OF TRANSISTOR AND LED

REF. NO

DESCRIPTION

POSITION

(1) (2) (3)

(S) (G) (D)

E C B

FRONT

VIEW

KRC102 M
KRC104 M
KTA1266 GR
KTA1273 Y
KTA1274 Y

304VT2E1
A503BC2E

FRONT
VIEW

KTA1271 Y
KTC3194 Y
KTC3199 GR
KTC3200 GR
KTC3203 Y

– 15 –

CD-E700/CD-E77

Figure 15 BLOCK DIAGRAM (1/3)

IC

80 79 77

71 70

47 46

45 44 43 42

41

25

18 10 9 8 7 5

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/SLIDE

FOCUS/TRACKING/

LA6574H

IC2

SPO

SLDO

FD

TO

VCC2

IC1

LC78646E

CD SERVO

LCHO

LVSS

RVSS

RCHO

CONT4

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

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

SLIDE

M2

COIL

TRACKING

FOCUS COIL

16.933 MHz

XL1

Q3

+6.5V

+5V

Q2

DRIVER

LASER

+3.3V

CONSTANT

VOLTAGE

+3.3V

+3.3V

Q1

+5V

R-CH

AGND

L-CH

D5V

WRQ

DRF CEDOCLDI

CLAMP SW

A5V

O/C,

CD RES

DISC NO

CNS4

+

–

+6.5V

(+B6)

(+B6)

(+B7)

29

12

22

1

15 13 1 7 24

28 27

3 2

30

26

9

10 11

8 7 6 5 4

8 7 1 2 3 4 5 6

10 3 1 9 8 7 6 52 4

2 3 1 4 6 5

2 3 1 4 6 5

2 3 1 4 6 5

6

43

M

M

M

44

DGND

CD-E700/CD-E77

– 16 –

Figure 16 BLOCK DIAGRAM (2/3)

IC101

AN7345K

PLAYBACK AND RECORD

/PLAYBACK AMP.

AUX

VIDEO IN

R

L

R

L

JK690

FM

+B

+B4

CLK

+B4

AM IF

OSC BUFF

AM

FM IF

OSC

FM

B.P.F

BI601

ATT

–20dB

Q106

Q103-

Q108

Q107

Q602

Q601

X351

456 kHz

10.7 MHz

450 kHz

FM

REC/PLAY

CLK

CE

DI

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

PB

CNP5

FROM CD SECTION

HEAD

ERASE

SWITCHING

SWITCHING

SWITCHING

BIAS

Q113

Q114

Q112

Q110

SWITCHING

Q109

OSC

BIAS

Q111
L103

Q105
Q106

REC PB HEAD

TAPE 2

PB HEAD

TAPE 1

R-CH

L-CH

AUDIO PROCESSOR

LC75341

IC601

+B4

R

L

REC

R

L

L NF
R NF

ALC

R REC

REF

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/ST VCO

DET

FMFM+BGND AM 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

CF303 T302

IC301

TA7358AP

FM FRONT END

BF301

4

22

3

24

2

1

81817

3

9

10

18

11

16

3

15

10

9

7

23

14

12
13

1
2

20

19

7

18

10

8

1 7

13

21

4

5

2

24

23

6
9

16
14

12

15

1

5 13

8 4 3 2

1

21

7

9 8 5

17

6

21

2 1

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

HIGH

NOR/

416

21

R-CH

L-CH

Q706

Q707
Q708

TAPE

MECHANISM

ASS'Y

MOTOR
DRIVER

SOLENOID

DRIVER

+B3

+B3

– 17 –

CD-E700/CD-E77

Figure 17 BLOCK DIAGRAM (3/3)

RL841

PT841

SUB POWER

TRANSFORMER

D842~
D845

IC854

AN78L05

+5.6V

+B5

+B PROTECT

+B7

+B2

D801

VL+

VL–

PT801

MAIN POWER

TRANSFORMER

F805

4A/125V

+B6

D803

M12

IC851,IC852,IC853:

VOLTAGE REGULATOR

IC855

+B3

KTC2026

Q905

KIA7812AP

KIA7810AP

D905

AC120 V, 60 Hz

–VF

VF1

VF2

Q801

+5V

KIA7805AP

IC852

+B4

+B7

+B1

–B1

–B2

+B6

+B3

+B5

+B4

Q705

R

L

+B5

RX701
SENSOR

REMOTE

D804

D802

RL914

JK701

HEADPHONES

M901

FAN MOTOR

SO901

SPEAKER

TERMINAL

M

Q906

Q709

Q904

Q901
Q903

Q902

D906

602

601

IC853

IC851

POWER AMP.

STK41242

IC901

A+10V

LD+7V

2A/125V

F803

2A /125V

F804

4A/125V

F801

4A/125V

F802

VH+

VH–

L-OUT

R-OUT

CLK

IX0553AW

4.194304 MHz

RESET

MAIN

AC POWER

SUPPLY CORD

REC/PLAY

VLOAD

RESET

GROUND

+B5

+B5

+B5

+B5

VDD

VDD

VDD

SP. DET.

-

CEDIDO

XL700

-

BIAS

T1/T2

AVDD

SW721-SW724

SW711-SW718

SW701-SW707

KEY

SECTION

TO CD

T.F.

MICROCOMPUTER

SYSTEM CONTROL

IC701

DISPLAY

FL701

4514 19131 125

79

91

86

92

85

70

38
37

34

35

36

31

33

29

8 7

6

1

11

7

8

2

5

14

18

93

1

2 4 5 6

3

2

1

100

45

11 12 1310 15 16 1 7 20 21 22 23 24

57 46 44

39

4127

56 48 4749505152535455 404243

- - -

VOLTAGE REGULATOR

CD-E700/CD-E77

– 18 –

Figure 18 SCHEMATIC DIAGRAM (1/10)

A

B

C

D

E

F

G

H

1

23456

• NOTES ON SCHEMATIC DIAGRAM can be found on page 14.

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.

7

0V

0V

0V

0.7V

0.7V

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 1

3

8 9

10 11 1

2

18 19

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

P22 1-F

CD_+B

CD_GND

L-CH

A_GND

R-CH

CNP5

TO

CD SERVO

PWB

P27 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
2

6

9

10
11
12

13

14

15

16

17

18

8

7

5

2

4

1

3

6
5

2

4

1

3

1
2

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

CCB

INTERFACE

AUX

DECK

TUNER

CD

112K

56K

112K

56K

Hich=CHROME

–

–

+

+

Hich=T1
+
–

+

–

Nor/CrO2

RIPPLE

ALC

ALC

Vcc

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

M

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
(ML)

C605

0.12(ML)

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

220/16

C603

22/50

C608

0.12(ML)

C606

0.12(ML)

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

R136
220K

R138

10K

R139

10K

Q108

KTC3199 GR

Q

KTC3

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