Camera System Adjustments; Mhz Origin Oscillation Adjustment (Vc-206 Board); Zoom Key Center Adjustment (Vc-206 Board) - Sony DCR-TRV9 Service Manual

1-3.

CAMERA SYSTEM ADJUSTMENTS

Before perform the camera system adjustments, check that the
specified value of "Composite Output Y Level Adjustment" and
"Composite Output Chroma Level Adjustment" of "Base band Block
Adjustment" of "VIDEO SYSTEM ADJUSTMENT" are satisfied.
1. 36 MHz Origin Oscillation Adjustment
(VC-206 board)
Set the frequency of the clock for synchronization. If deviated, the
synchronization will be disrupted and the color will become
inconsistent.
Subject Not required
Pin !§ of IC203 (CL200)
Measurement Point
Measuring Instrument Frequency counter
Adjustment Page F
Adjustment Address 1C
Specified Value f=18000000 ± 180Hz (NTSC)
f=18000000 ± 126Hz (PAL)
Adjusting method:
1) Select page: 6, address: 00, and set data: 01.
2) Select page: F, address: 1C, change the data and set the clock
frequency (f) to the specified value.
3) Press the PAUSE button of the adjustment remote commander.
4) Select page: 6, address: 00, and set data: 00.

2. Zoom Key Center Adjustment (VC-206 board)

Set the A/D value center of the microprocessor to the center voltage
of the zoom key.
If deviated, the zoom lens operates of itself ,even if the zoom key is
the center position.
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note: Perform this adjustment when the operation switch block (FK-4580)
is replaced.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 2, address: 63, read the data, and this data is named
D . (The data of address: 63 should be "6D" to "93".)
63
3) Select page: D, address: 5B, set data: D
4) Press the PAUSE button of the adjustment remote commander.
5) Select page: 0, address: 01, and set data: 00.
5-9
Not required
Display data of page: 2, address: 63
of the adjustment remote commander
D
5B
The same data as page: 2, address: 63.
(The data should be "6D" to "93".)
.
63