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V1-14207(1) 1 14
2-2. VIDEO CIRCUIT ADJUSTMENT
.
Before making the following adjustments, Section 2-1. SERVO CIRCUIT ADJUSTMENT
should be completed
.
Use the relay jig to provide simple adjustment of the VP-1 PWB Ass'y.
2-2-1.
TEST EQUIPMENT
AND STANDARDS
REQUIRED
Color Bar Signal Generator
PAL Color bar signel with 100% white level (EBU color barsignel)
(Signal waveform
is described below. Refer to Fig. 2.2.1)
Oscilloscope
Vertical sensitivity: 5 mV/DIV, external trigger
Band width: more than 10 MHz
Digital Voltmeter
DC range
Test Tape
VHJ-0008 or VHJ-0023: SP mode, color bar, 1kHz
(Color bar signal waveform k described below. Refer to Fig. 2.2.3)
Blank Tape
VHS-type cassette tape
Oscilloscope Probe
Input capacity: less than 25 PF (10:1)
less than 40 pF (1:1)
Covering frequency: DC -40
MHz (10:1)
DC-30
MHZ(1:1)
Frequency Counter
8 significant digits
Adjustment Relay Jig
VHJ-0065: 5-wire flat cable for VP-1 PWB Ass'y
PAL TV TEST SIGNAL
WPVSC
bite Peak Level
Iv
Pedestal Level
SynC Tip Level
I
Ec:gnA
COLOR BAR SIGNAL WAVEFORM
Fig. 2.2.1
COLOR BAR PATTERN ON MONITOR TV
Fig. 2.2.2
WPV-TCS
1
'H.Sync Signal
COLOR BAR SIGNAL WAVEFORM
(VHJ-0008)
Fig.
2.2.3
WPV-TCP
w
g%
g:~&g
(75%)
>OU=K6
vu
100"A
White
Black
COLOR BAR PAITERN
(VHJ-0008) ON MONITOR TV
Fig.
2.2.4
–8-
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