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Measuring
No.
Item
instruments &
Input signals
3.7.8 RF Circuit Adjustment
1
REC current
• Internal Color
adjustment
bars (100%)
• Oscilloscope
VCO center
• Internal Color
2
frequency
bars (100%)
adjustment
• Digital voltmeter
Measuring point (*)
Mode
Adjustment parts (-)
Adjustment level (+)
* TP REC MON
REC
(connector cable)
- 6Ch
+ 440 ± 20 mVp-p
* TP VCO DC
REC
(connector cable)
↓
- 6Ah
PB
+ 1.925 ± 0.025 V
Adjustment procedure
Note: Connect TP to the section indicated [REC
MON] on the jig connector in advance.
(1) Click [REC Current].
(2) Click the [OK] button.
(3) Adjust "New value" (address "6Ch") so that
the level becomes the adjustment level.
(4) After adjustment, click the "v" marking and set
the power button of the set to OFF.
(1) Click [VCO Center Frequency].
(2) Click the [OK] button.
(3) Play the tape section containing color bars.
(4) Adjust "New value" (address "6Ah") so that
the level becomes the adjustment level.
(5) After adjustment, click the "v" marking and set
the power button of the set to OFF.
3-19
3-18
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