Adjustments; Mechanical Adjustments; Electrical Adjustments; Pre-Adjustment Preparations - Sony SLV-ME100MI Service Manual

During the adjustment, see the Parts Arrangement
Diagram for Adjustments on Page 7-6.

7-1. MECHANICAL ADJUSTMENTS

Refer to the SERVICE MANUAL of VHS MECHANICAL AD-
JUSTMENT VI.

7-2. ELECTRICAL ADJUSTMENTS

2-1.

PRE-ADJUSTMENT PREPARATIONS

Necessary items and indications for total adjustment of electric
circuit of this machine will be described in this chapter.
2-1-1.

Instruments to be Used

1) Color TV
2) Oscilloscope 1 or 2 phenomena, band more than 30 MHz, de-
lay mode, as provided.
3) NTSC pattern generator
4) PAL pattern generator
5) Digital voltmeter
6) Audio level meter
7) Audio noise meter
8) Audio generator
9) Attenuator
10) Alignment tape
Part Code: 8-192-605-36 KRV-51P (PAL)
Part Code: 8-192-605-32 KRV-51N2 (NTSC)
2-1-2.

Connection

Unless otherwise specified, connect and adjust the measuring in-
struments as shown in the following diagram.
VIDEO LINE IN
Pattern generator
Video output
(75 Ω)
Fig. 7-2-1
SECTION 7

ADJUSTMENTS

VCR Monitor TV
VIDEO LINE OUT
SLV-ED100/EZ2000/K990/KH9

2-1-3. Set-up of Adjustment

In this adjustment, PAL or NTSC pattern generator is connected
with LINE input signal terminal. When checking with tuner, con-
nected AERIAL terminal. Check that the amplitudes of video sig-
nal SYNC signal, of picture portions, and of burst signals are flat
at approximately 0.3, 0.7 and 0.3 V, respectively, and that the level
ratio of the burst signal and "red" signal are 0.30: 0.66. Fig. 7-3-2.
shows video signals (color bars) used in adjusting the video sec-
tion.
PAL
NTSC
2-1-4.

Alignment Tapes

[Alignment Tape (KRV-51N2/KRV-51P)]
Mode Time
1 SP Seven minutes
2 SP Three minutes
3 EP Seven minutes
4 EP Three minutes
7-1
Fig. 7-2-2
Audio signal
Video signal
(HiFi/Normal)
Color bar
Monoscope
400 Hz
Color bar
Monoscope