GV-HD700 (serv.man4) - Sony VCR Service Manual (repair manual). Page 11

6-10

GV-HD700/HD700E_ADJ

On the mechanism section adjustment
For details of mechanism section adjustments, checks, and replace-
ment of mechanism parts, refer to the separate volume “DV ME-
CHANICAL ADJUSTMENT MANUAL IX  N Mechanism  ”.

1) Connect the adjustment remote commander to the LANC jack.
2) Turn the HOLD switch of the adjustment remote commander

to the ON position.

3) Close the cassette compartment without the cassette.
4) Select page: 3, address: 01, set data: 0C, and press the PAUSE

(Write) button of the adjustment remote commander.
(The mechanism enters the record mode automatically.)
Note: The function buttons become inoperable.

5) To quit the record mode, select page: 3, address: 01, set data:

00, and press the PAUSE (Write) button of the adjustment re-
mote commander.  (Whenever you want to quit the record
mode, be sure to quit following this procedure.)

1) Connect the adjustment remote commander to the LANC jack.
2) Turn the HOLD switch of the adjustment remote commander

to the ON position.

3) Close the cassette compartment without the cassette.
4) Select page: 3, address: 01, set data: 0B, and press the PAUSE

(Write) button of the adjustment remote commander.
(The mechanism enters the playback mode automatically.)
Note: The function buttons become inoperable.

5) To quit the playback mode, select page: 3, address: 01, set

data: 00, and press the PAUSE (Write) button of the adjust-
ment remote commander.  (Whenever you want to quit the
playback mode, be sure to quit following this procedure.)

1) Clean the tape running side (tape guide, drum, capstan shaft,

pinch roller, etc.).

2) Connect the adjustment remote commander to the LANC jack.
3) Turn the HOLD switch of the adjustment remote commander

to the ON position.

4) Connect an oscilloscope to RP-244 board CN1002 via tha CPC

 jig.
Channel 1: RP-244 board CN1002 Pin 1 (Note)
External trigger: RP-244 board CN1002 Pin 2
 Note: Connect a 75 

Ω resistor between pins 1 and 8 of

 CN1002.
75 

Ω resistor (Parts code: 1-247-804-11)

5) Playback the alignment tape for tracking. (XH2-1)
6) Select page: 3, address: 33, and set data: 08.
7) Select page: 3, address: 26, set data: 31, and press the PAUSE

(Write) button.

8) Check that the oscilloscope RF waveform is normal at the en-

trance and exit.
If not normal, adjust according to the separate volume
“DV MECHANICAL ADJUSTMENT MANUAL IX
N Mechanism  ” .

Pin No. Signal Name

1

RF_MON

2

SWP

3

REG_GND

4

N.C.

5

N.C.

6

N.C.

7

N.C.

8

REG_GND

1) Connect the adjustment remote commander to the LANC jack

and set the HOLD switch to the ON position.

2) Select page: 3, address: 26, set data: 00, and press the PAUSE

(Write) button.

3) Select page: 3, address: 33, and set data: 00.

CH1

Entrance side

Exit side

Check this section

(Normal waveform)

CH2

(Trigger)

3.3 msec