Sony Handycam Vision DCR-TRV5, Service Manual

Page: 89 / 165

5-8
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. GUM-PLL Adjustment (VC-207 board)
Set the frequency of the clock for synchronization.
If deviated, the synchronization will be disrupted and the color will
become inconsistent.
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Not required
CL205 or C228
⊕
Digital voltmeter
F
4D
A=1.6
±
0.1Vdc
Adjusting method:
1)
Select page: 6, address: 00, and set data: 01.
2) Select page: F, address: 4D, change the data and set the DC
voltage(A) 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. 36MHz Origin Oscillation Adjustment
(VC-207 board)
Set the frequency of the clock for synchronization.
If deviated, the synchronization will be disrupted and the color will
become inconsistent.
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Not required
CL202(or Pin
@•
of IC201) or Pin
2
of IC205
Frequency counter
F
1C
CL202:
f=18000000
±
90Hz (NTSC)
f=18000000
±
90Hz (PAL)
Pin
2
of IC205:
f=27000000
±
135Hz (NTSC)
f=27000000
±
135Hz (PAL)
Note: Perform “GUM-PLL Adjustment” befor this adjustment.
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.
3. Zoom Key Center Adjustment (VC-207 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
Not required
Display data of page: 2, address: 63 of
the adjustment remote commander
D
5B
The same data as page: 6, address: 63.
(The data should be “6C” to “86”.)
Note 1:
Perform this adjustment when the zoom VR (RV001 of FP-694) is
replaced.
Note 2:
Don’t touch the zoom lever.
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
63
. (The data of address: 63 should be “6C” to “86”.)
3) Select page: D, address: 5B, set data: D
63
.
4) Press the PAUSE button of the adjustment remote commander.
5) Select page: 0, address: 01, and set data: 00.