Sony SLV-SE310 - 7 Adjustments; Electrical Adjustments; Mechanical Adjustments; Preparation before Adjustments

7-1
SECTION 7
ADJUSTMENTS
SLV-SE310/SE410/SE510
7-1. MECHANICAL ADJUSTMENTS
For the mechanical adjustments, please refer to the
“VHS MECHANICAL ADJUSTMENT MANUAL
(S MECHANISM)” (9-921-647-11).
7-2. ELECTRICAL ADJUSTMENTS
See the adjusting part location diagram from on page 7-4
for the adjustment.
2-1. PREPARATION BEFORE ADJUSTMENTS
2-1-1. Equipment Required
The measuring instruments used for this alignment include:
1) Monitor TV
2) Oscilloscope, dual-trace, bandwidth of 30 MHz or more, with
delay mode (A probe 10:1 should be used unless otherwise
specified.)
3) Frequency counter
4) PAL Pattern generator
5) Remote commander
6) Digital voltmeter
7) Audio generator
8) Audio level meter
9) Audio attenuator
10) Alignment tapes
KRV-51P (PAL) Part No. : 8-192-955-57
2-1-2. Equipment Connection
Unless otherwise specified, connect and adjust the measuring in-
struments as shown in the following diagram.
Fig. 7-2-1
2-1-3. Set-up of Adjustment
In this adjustment, PAL pattern generator is connected with LINE-
2 input terminal. When check to tuner, connected AERIAL termi-
nal. Check that the synchronizing signal of the Y signal has an
amplitude of approximately 0.7 V and that the burst signal has an
amplitude of approximately 0.3 V and its waveform is flat. And
check that the level ratio of burst signal to “red” signal is 0.30 :
0.66. The video signal (color bar) used for electrical aligning this
unit is shown in Fig. 6-2-2.
Fig. 7-2-2 Color Bar Signals of Pattern Generator
2-1-4. Alignment Tape
• Contents of KRV-51P
VIDEO IN
VIDEO OUT
Video output
(75Ω)
Pattern generator VCR
Monitor TV
1
2
3
4
Mode
SP
LP
Period
7 minutes
3 minutes
7 minutes
3 minutes
Video signal
Color bar
Monoscope
Color bar
Monoscope
Audio signal
Hi-Fi
400Hz
(L/R)
Normal
400Hz
Red
Horizontal sync signal
Burst signal
(Should be flat)
Approx.
0.3 V
White (75%)
Approx. 0.3 V
Approx. 0.7 V