SLV-KS1 - Sony VCR Service Manual (repair manual). Page 32

Make the electrical adjustment in the following sequence.

Checking power supply

Servo system adjustment

Audio system adjustment

Purpose:
Adjust the interval between A ch and B ch of tape playback out-
put.
Improve the interchangeability with other tapes and sets.
When it is out of order, the interval appears on the screen, the
screen is disturbed.

Mode

PB

Signal

Alignment tape SP mode
color bar

Measurement Point

CH1: VIDEO LINE OUT
CH2: Pin 3 of CN270
(RF SWP)

Measuring Instrument

Oscilloscope

Adjusting Element

Remote commander (Note)

Specified Value

6.5 ± 0.5 H (410 ± 32 µsec)

Note: RMT-V266A (1-418-694-11) or

RMT-V266B (1-418-695-11)

Adjusting Method:
1) Connect MA-370 board JS401 to the GND for about 1 second

to activate the RF switching position adjustment mode.

2) Check that the Power LED flash on and off.
3) Using the channel + and – buttons on the remote commander,

adjust to 6.5 ± 0.5 H.

4) Press the pause button.

Mode

STANDBY

Measuring Instrument

Digital voltmeter

D +6 V check

Measurement Point

Corrector of Q607

Specified Value

5.56 to 6.25 V

Approx. 1 Vp-p

Approx. 5 Vp-p

V

enargement

CH2

CH1

CH2

CH1

Vertical sync. signal

6.5 

±

 0.5 H

(410 

±

 32 

µ

sec) 

Mode

E-E

Measuring Instrument

Digital voltmeter

SW +12 V check

Measurement Point

Pin 2 of IC601

Specified Value

11.7 to 12.3 V

SW +5 V check

Measurement Point

Emitter of Q607

Specified Value

4.8 to 5.4 V

MTR 12 V check

Measurement Point

Corrector of Q605

Specified Value

12.5 to 14.5 V

Checking Method:
1) Confirm that each voltage meets its specified value.