DOWNLOAD Sony ICF-CD2000 / ICF-CD2000S Service Manual ↓ Size: 3.05 MB | Pages: 47 in PDF or view online for FREE

– 9 –

2

two claws

1

screw (2 

×

 8)

2

three claws

3

cabinet (upper)

2

four claws

1

screw (2 

×

 8)

6

cabinet (front) sub assy

5

cover

knob (open)

2

Slide the knob (open)
in the direction of the 
arrow 

A

, and open the

cabinet front assy.

cabinet (front) assy

1

screw (2 

× 

8)

3

connector (CN701)

4

Pull out two flat wires.

A

– 10 –

3

optical pick-up
(CDM-2911EBA)

2

three connectors
(CN601, 602, 603)

1

connector (CN501)

3

two screws
(B1.7 

×

 5)

4

Remove two solders.

6

screw (2 

×

 8)

7

main board

1

screw (B3 

×

 6)

2

telescopic antenna

5

jack board

– 11 –

The equipment is provided with a service program built in the
microcomputer, like conventional models.
Service program operation methods are described in the follow-
ing.

1. Connect TP447 (CD TEST 2) to the TP444 (GND).
2. Turn ON the S423 (CD OPEN switch).
3. Insert external power supply.
4. Connect TP453 (RESET) to the TP444 (GND) to make open.

(Reset)

1. Once the service mode is effected, the LCD displays 18 indi-

cations each of which is repeatedly displayed.

2. By pressing the

>

or

.

key, the optical pick-up is mov-

able inwardly or outwardly.  However, if this is activated, track-
ing servo and sled servo are turned OFF, so it can be turned
ON by pressing the 

[BAND]

 key if required.

3. Without disk, focus searching is repeated continuously.
4. By pressing the 

[BAND]

 key, tracking servo, sled servo and

CLV-A (servo in PLAY) are turned ON. Then playing begins.
No muting is ON in the service mode.

1. Remove external power supply.
2. Disconnect TP447 (CD TEST 2) and TP444 (GND), and also

TP453 (RESET) and TP444 (GND).

TP444

 (GND)

TP447

 (CD TEST 2)

TP453

 (RESET)

– 12 –

1. Connect TP445 (CD TEST 1) to the TP444 (GND).
2. Insert external power supply.

1. The CD auto adjustment is not performed, but LCD test mode

is displayed. Also, ESP is placed in OFF state and it does not
turn ON.

2. The sled is operating while the

>

or

.

key is pressed.

At this time, the spindle and tracking servos turn OFF.

3. The focus search is performed until the focus becomes OK,

if the 

[CD     ]

 key is pressed. At this time, the spindle and

tracking servos turn OFF. Also, when the focus becomes OK,
the optical pick-up moves to almost center of 12 cm disc.

4. The spindle and tracking servos turn ON when the 

[BAND]

key is pressed. Also, the mute turns OFF if the data is correct.

1. Remove external power supply.
2. Disconnect TP445 (CD TEST 1) and TP444 (GND).

1. Connect TP447 (CD TEST 2) to the TP444 (GND).
2. Insert external power supply.

1. The CD auto adjustment is performed. Also, the ESP can be

turned ON or OFF.

2. The sled is operating while the

>

or

.

key is pressed.

At this time, the spindle and tracking servos turn OFF.

3. The focus search is performed until the focus becomes OK,

if the 

[CD     ]

 key is pressed. At this time, the spindle and

tracking servos turn OFF. Also, when the focus becomes OK,
the optical pick-up moves to almost center of 12 cm disc.

4. The spindle and tracking servos turn ON when the 

[BAND]

key is pressed. Also, the mute turns OFF if the data is correct.

5. The pickup jumps by one track if

>

or

.

key is pressed

when the spindle and tracking servos turn ON, or it jumps
continuously if the key is kept pressed. Also, if the 

[PRESET]

key is pressed, the following operation is performed.

[PRESET 1]

1 track jump

[PRESET 2]

4 track jump

[PRESET 3]

16 track jump

[PRESET 4]

32 track jump

[PRESET 5]

256 track check

6. The pickup jumps to the second music and the test mode

is released, if 

[CD     ]

 key is pressed when the spindle and

tracking servos turn ON.

u

u

u

1. Connect TP448 (CD TEST 3) to the TP449 (GND).
2. Insert external power supply.

1. The same operation as in test mode 2 is performed. However,

the LCD test mode is displayed same as in test mode 1.