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2-2. VIDEO CIRCUIT RELAY JIG
2-2-1 .TEST EQUIPMENT AND STANDARDS REQUIRED
Color Bar Signal Generator
Oscilloscope
Oscilloscope Probe
Digital Voltmeter
Alignment Tape
Relay Jig
ALIGNMENT TAPE COLOR BAR SIGNAL
0.7Vp-p
1Vp-p
0.3Vp-p
Burst signal
H. Sync signal
Color bar signal waveform (VHJ-0008)
(75%)
V
U
Color bar pattern (VHJ-0008) on monitor TV
RELAY JIG
Connect the flat cable end from the cylinder assembly to
the VP-1 PWB assembly using the relay jig to provide
simple repairing of the VP-1 PWB assembly, as shown in
Fig. 2-2-3. Further, when adjusting the VP-1 PWB assem-
bly, be sure to make contact an end of shield case with
bracket of the VP-1 PWB assembly to maintain the shield
effect. If the VP-1 PWB assembly does not contact, there
is insufficient ground and no proper play back image can
be obtained.
PAL Color bar signel with 100% white level (EBU color bar signel)
Vertical sensitivity
Bandwidth
Input capacity
Covering frequency
DC range
VHJ-0008 or VHJ-0023
(Color bar signal waveform is described below. Refer to Fig. 2-2-1)
VHJ-0065
VHJ-0066
100% White
0.3Vp-p
Fig. 2-2-1
100%
Black
White
Fig. 2-2-2
: 5 mV/DIV, external trigger
: more than 10 MHz
: less than 25 pF (10:1)
less than 40 pF (1:1)
: DC ~ 40 MHz (10:1)
DC ~30 MHz (1:1)
: SP mode, color bar. 1 kHz
: 5-wire flat cable for VP-1 PWB assembly (2 head model)
: 7-wire flat cable for VP-1 PWB assembly (4 head model)
VP-1 PWB Assembly
Relay Jig
VHJ-0065
or
VHJ-0066
Flat Cable
Cylinder
Assembly
6-6
Fig. 2-2-3
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