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2-9. VIEWFINDER CIRCUIT
1 . Horizontal Oscillation Frequency Adjustment
[Adjusting Location]
[Adjustment I Check]
Measuring Point
Measuring Equipment
IC971 @,
Frequency counter
CN971 @
(G ND)
No signal
ADJ. Location
VR971
1 5,600 ± 1 00 Hz
Preparation:
• POWER switch: "P LAYER"
Adjustment:
1 . Adjust to 1 5,600 ± 1 00 Hz with VR971 .
Condition
Stop
I
Input Signal
Alignment Tape
ADJ. / Check Value
2. Viewfinder Provisional Adjustment
[Adjusting Location]
VR974
[Adjustment I Check]
Measuring Point
Viewfinder
ADJ. Location
VR972, VR97 4
VR975
Preparation:
• POWER switch: "PLAYER"
Adjustment:
1 . Turn VR975 (BRIGHT) to obtain adequate brightness.
2. Turn VR972 01 SIZE) to adjust picture size.
3. Adjust VR975 (BRIGHT) and VR974 (FOCUS) so that a
proper picture display is obtained.
- 5-26 -
VR975
Measuring Equipment
I
Input Signal
Alignment Tape
(WR5-5CSP): For operation check,
monoscope portion
ADJ. / Check Value
VR972
Condition
Playback
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