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– 8 –

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

Main PWB

( G1 ) x2
ø3 x8mm

( F1 ) x1
ø3 x10mm

( E1 ) x2
ø3 x12mm

( E4 ) x3

( E3 ) x1

Front Panel

Tape
Mechanism

( E1 ) x1
ø3 x10mm

Push

Push

Headphon 
PWB

( E3 ) x2

( E3 ) x1

( E2 ) x2

Display 
PWB

Switch PWB

Tape
Mechanism

Open

Cassette
Holder
(Left/Right)

Front Panel

( J1 ) x6
ø3 x10mm

( H2 ) x11
ø3 x10mm

( H1 ) x3
ø3 x10mm

Power Supply PWB

( K1 ) x4
ø3 x10mm

Power Amp. 
PWB

( M1 ) x1
ø3 x10mm

( M1 ) x1
ø3 x10mm

( L1 ) x1
ø3 x10mm

Turntable

Disc Tray

( L2 ) x1

( M2 ) x1

( M2 ) x1

CD Player Unit

( N1 ) x4
ø3 x14mm

( P1 ) x1
ø2.6 x10mm

CD Changer
Mechanism

CD Mechanism

Shift Lever

CD Player Base

SHARP

Front Panel

(A1) x1

Speaker Box

Screw
driver

Driver should be pried
away from speaker Box.

Direction of handle

Speaker Box

(A2) x4
   4 x12mm

(A2) x4
   3 x10mm

Woofer

– 9 –

1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).
2. Remove the stop washer (B3) x 1 pc., to remove the gear

(B4).

3. Remove the pickup.

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

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

up/down motor.

( B1 ) x2
   2.6 x6mm

Shaft
( B2 ) x1

Stop Washer
( B3 ) x1

Gear
( B4 ) x1

CD Mechanism

Pickup

( A1 ) x2
ø2 x5mm

Turntable Up/Down Motor

– 10 –

Play: TW-2412

Tape 1: Over 80 g
Tape 2: Over 80 g

Play: TW-2111

30 to 60 g. cm

30 to 100 g.cm

Fast forward: TW-2231

—

50 to 100 g.cm

Rewind: TW-2231

—

50 to 100 g.cm

Normal

MTT-111

VRM01

3,000 

±

Speaker

speed

30 Hz

terminal

fL: Low-range frequency

fH: High-renge frequency
•  AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated

IF

450 kHz

1,620 kHz

T351

*1

MW Band

—

522 kHz

(fL): T306

*2

Coverage

1.1 

±

 0.1 V

MW

990 kHz

990 kHz

(fL): T302

*1

Tracking
LW Band

—

153 kHz

(fL): T305

*2

Coverage

1.5 

±

 0.1 V

LW

225 kHz

225 kHz

(fL): T301

*1

Tracking

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

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

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

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

•  FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated

98.00 MHz

98.00 MHz

VR351*

Input: Antenna

(25 dB

µ

V)

Output: Speaker
Terminal

*1. Input: Antenna,

Output: TP302

*2. Input: Antenna,

Output: TP301

VRM1

TAPE
SPEED

TAPE  MECHANISM  PWB

TUNER  PWB

TP301

CNP301

SO301
ANTENNA
TERMINAL

FE301

TP302

T351

T306

T305

T302

T301

VR351

AM  IF

FM  MUTE
LEVEL

MW  BAND
COVERAGE

MW  
TRACKING

LW  
TRACKING

LW  BAND
COVERAGE

– 11 –

2

1

TO

TE

200 ms
1V/diV
IC 1   15

200 ms
1V/diV
IC 1    7

TRACKING/
ERROR
BARANCE
ADJUST

2

1

10ms
0.50 V
IC1  20   FE

10ms
0.50 V
IC1  7   TE

Enlarged
View

TRACKING
OFF-SET
ADJUST

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

• Automatic adjustment item
1. Focus offset (Fig. 11-2)
2. Tracking offset (Fig. 11-3)
3. E/F balance (tracking error balance) (Fig. 11-4)
4. RF level AGC function (HF level: constant)
5. RF level automatic follow-up of the tracking gain

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

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

) or (

) key.

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

Canceling method -  POWER OFF

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

Setting of TEST mode

Indication of CD TST mode (Fig. 11-1)

OPEN/CLOSE operation is manual operation.

The pickup can be moved by using the (

) or (

) key.

<MEMORY>
LASER ON

<PLAY> key input

Press <STOP> key.

Stop

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

<MEMORY>
Tracking on the spot.
SERVO OFF PLAY

<MEMORY>

Tracking on the spot.
SERVO ON PLAY

STOP

2

 0.1s
0.50 V
IC1  20   FE

 0.1s
0.50 V
IC1   7   TE

1

 FOCUS
OFF-SET
ADJUST

 TRACKING
OFF-SET
ADJUST

IL is not performed.

<STOP>