DOWNLOAD Sony HCD-V707 / MHC-V707 Service Manual ↓ Size: 1.47 MB | Pages: 71 in PDF or view online for FREE

– 13 –

1

connector
(CN651)

2

four screws
(BTP 2.6 

× 

4)

A

3

Removal the AUDIO board
to direction of the arrow 

A

.

4

Break the soldering
of motor lead.

5

two screws
(BTP 2.6 

×

 8)

6

claw

8

Hang the two belts.

7

Removal the capstan motor (M1)
to direction of the arrow 

B

.

B

– 14 –

1

belt (FR)

2

belt A

3

belt B

4

belt (FR)

capstan motor

1

claw

2

pinch lever (REV) ass’y

3

tension spring

4

two clips

1

claw

A

2

pinch lever (FWD) ass’y

5

Break the soldering of
flexible flat cables.

– 15 –

1

connector
(CN901)

3

two screws
(BVTP 3 

×

 8)

4

connector
(CN101)

IC201

2

flat wire (15 core)
(CN201)

1

two connectors
(CN105, 106)

3

three screws
(BVTP 3 

×

 8)

5

MAIN board

1

tension spring (1)

2

Removal the slider (REV slider)
to direction of the arrow.

3

two screws
(P 2 

×

 6)

4

magnetic head

5

two azimuth adjustment screws

6

azimuth adjustment spring

2

flat wire (13 core)
(CN202)

– 16 –

• The cold reset clears all data including preset data stored in the

RAM to initial conditions. Execute this mode when returning the
set to the customer.

Procedure:
1. Press three buttons NEXT ,  ENTER/NEXT , and DISC 1 si-

multaneously.

2. The fluorescent indicator tube becomes blank instantaneously,

and the set is reset.

• This mode moves the pick-up to the position durable to vibra-

tion. Use this mode when returning the set to the customer after
repair.

Procedure:
1. Press POWER button to turn the set ON.
2. Press DIRECTION button and POWER button simulta-

neously.

3. A message “LOCK” is displayed on the fluorescent indicator

tube, and the CD delivery mode is set.

• This mode resets the set with the preset data kept stored in the

memory.  The hot reset mode functions same as if the power cord
is plugged in and out.

Procedure:
1. Press three buttons NEXT , ENTER/NEXT , and DISC 2 si-

multaneously.

2. The fluorescent indicator tube becomes blank instantaneously,

and the set is reset.

• This mode can run the CD sled motor freely. Use this mode, for

instance, when cleaning the pick-up.

Procedure:
1. Select the function “CD”.
2. Press three buttons NEXT , ENTER/NEXT , and

FUNCTION  simultaneously.

3. The Sled Servo mode is selected, if “CD” is blanking on the

fluorescent indicator tube.

4. With the CD in stop status, press

) button in CD section to

move the pick-up to outside track, or

0 button to inside track.

5. To exit from this mode, perform as follows:

1) Move the pick-up to the most inside track.
2) Press three buttons in the same manner as step 2.

Note:
• Always move the pick-up to most inside track when exiting from

this mode.  Otherwise, a disc will not be unloaded.

• Do not run the sled motor excessively, otherwise the gear can be

chipped.

• The FUNCTION name of external input terminal can be changed

over to “VIDEO” or “MD”.

Procedure:
1. Press POWER button to turn the set OFF.
2. Press POWER button together with FUNCTION button, and

the power is turned on, the display of fluorescent indicator tube
changes to “MD” or “VIDEO” instantaneously, and thus the
FUNCTION is changed over.
It is set to “VIDEO” at shipment.

• A step of AM channels can be changed over between 9 kHz and

10 kHz.

Procedure:
1. Press POWER button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND

button to select the BAND “MW”.

3. Press POWER button to turn the set OFF.
4. Press ENTER/NEXT and POWER buttons simultaneously,

and the display of  fluorescent indicator tube changes to “MW
9 k STEP” or “MW 10 k STEP”, and thus the channel step is
changed over.
Be sure not to change with carelessness.

Procedure:
1. Press three buttons NEXT , ENTER/NEXT , and DISC 3 si-

multaneously.

2. LEDs and fluorescent indicator tube are all turned on.

Press DISC 2 button, and the key check mode is activated.

3. In the key check mode, the fluorescent indicator tube displays

“K 1 J0 V0”.  Each time a button is pressed, “K”value increases.
However, once a button is pressed, it is no longer taken into
account.
“J” value increases like 1, 2, 3 ... if rotating JOG dial knob in
“+”  direction, or it decreases like 0, 9, 8 ... if rotating in “–”
direction.
“V” value increases like 1, 2, 3 ... if rotating VOLUME knob
in “+”  direction, or it decreases like 0, 9, 8 ... if rotating in “–”
direction.

4. To exit from this mode, press three buttons in the same manner

as step 1, or disconnect the power cord.

This model has the self-diagnosis function for the video and audio
decoder sections.
Immediately after the power on, the self-diagnosis function
searches each operation of IC’s around the mechanism controller
(IC701).
The LED (D701) on the VIDEO board indicates their results.

Light

No error

1 time blinking (Repeatedly) External RAM (S-RAM) error

(IC751)

2 times blinking (Repeatedly) Video decoder section error

(IC201)

3 times blinking (Repeatedly) Video RAM (D-RAM) error

(IC251)

4 times blinking (Repeatedly) Audio decoder section error

(IC201)

[VIDEO  BOARD] (SIDE-A)

IC701

IC201

D701

IC771

IC901