If the Horizontal Position of the Audio Control Head is not properly
adjusted, a maximum envelope cannot be obtained at the Neutral
Position of the Tracking Control Circuit.
1. Insert the alignment tape.
2. Press and hold FF button and CH DOWN buttons on VCR together
over 5 seconds in power off condition.
The power comes on and the unit goes into service mode.
3. Play back the alignment tape.
4. To enter Tracking center mode, press PLAY button in Play back mode.
"TRACKING CENTER" will be displayed on the TV monitor.
5. Connect the oscilloscope to TP3002 on the Video Signal Process
Section of the Main C.B.A. Use TP6205 as a trigger.
6. Loosen the Black Screw (D) and tighten it slightly. Set the H-Position
Adjustment Driver into the Hole (A). Then slowly turn the fixture either
clockwise or counterclockwise so that the envelope is at maximum.
Fig. M7
7. Tighten Black Screw (D).
8. To release from Tracking center mode, press PLAY or STOP button.
Note:
Old type of H-Position Adjustment Driver (VFK0136) can be used for this
adjustment.
6.3. ELECTRICAL ADJUSTMENT
6.3.1. TEST EQUIPMENT
To do all of these electrical adjustments, the following equipment is required.
1. Dual-Trace Oscilloscope
Voltage Range: 0.001 V to 50 V/Div.
Frequency Range: DC to 50 MHz
50
Содержание PV-D4733S-K
Страница 4: ...3 1 2 ELECTRICAL REPLACEMENT PARTS LIST 4 EXPLODED VIEW 4 1 CHASSIS FRAME AND CASING PARTS SECTION 4 ...
Страница 15: ...R1522 ERJ6GEYJ103V MGF CHIP 1 10W 10K 15 ...
Страница 45: ...Fig 16 1 Fig 16 2 6 1 4 2 REMOVAL OF CSP IC Fig 16 3 45 ...
Страница 46: ...6 1 4 3 INSTALLATION OF CSP IC Fig 16 4 46 ...
Страница 47: ...Fig 16 5 47 ...
Страница 48: ...6 1 4 4 CSP IC LOCATION Fig 16 6 48 ...
Страница 134: ...Fig D2 22 ...
Страница 139: ...5 2 2 Inner Parts Location Fig J1 1 27 ...
Страница 140: ...5 2 3 EJECT Position Confirmation Fig J1 2 28 ...
Страница 147: ...5 2 8 Capstan Motor Unit Fig J6 5 2 9 T Loading Arm Unit and S Loading Arm Unit Fig J7 1 35 ...
Страница 152: ...5 3 CASSETTE UP ASSEMBLY SECTION 5 3 1 Top Plate Wiper Arm Unit and Holder Unit Fig K1 1 40 ...
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Страница 169: ...10 3 CASSETTE UP COMPARTMENT SECTION 57 ...
Страница 170: ...10 4 CHASSIS FRAME AND CASING PARTS SECTION 58 ...
Страница 171: ...10 5 PACKING PARTS AND ACCESSORIES SECTION 59 ...
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