Sony IPELA SNC-RZ30N, Service Manual

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2-13
SNC-RZ30N/RZ30P (E)
2-3. Camera Adjustments
1. 28 MHz Origin Oscillation Adjustment (VC-292
board)
Set the frequency of the clock for synchronization.
If it incorrectly set, the synchronization will be disrupted
and the color will become inconsistent.
Subject Not required
Measurement Point Pin
8
of IC302
Measuring Instrument Frequency counter and Adjusting
remote commander
Adjustment Page F
Adjustment Address 4D
Specified Value Pin
8
of IC302 :
f = 14.318181 MHz
±
68 Hz (NTSC)
f = 14.187500 MHz
±
68 Hz (PAL)
n
.
NTSC model : SNC-RZ30N
PAL model : SNC-RZ30P
Adjusting method
1) Select page: 0, address: 01, and set data: 01.
2) Select page: F, address: 4D, change the data and set
the clock frequency (f) to the specified value.
3) Press the PAUSE button of the adjusting remote
commander.
4) Select page: 0, address: 01, and set data: 00.
2. SYNC Level Adjustment (MC-141 board)
Set the Y signal output level.
Subject All black
Measurement Point Pin
@/
of CN901
Measuring Instrument Oscilloscope and Adjusting remote
commander
Adjustment Page F
Adjustment Address 67
Specified Value A = 285
±
5 mV (NTSC)
A = 300
±
5 mV (PAL)
m
.
Terminate at 75
Z
resistor and measure.
. NTSC model : SNC-RZ30N
PAL model : SNC-RZ30P
Adjusting method
1) Select page: 0, address: 01, and set data: 01.
2) Select page: F, address: 67, change the data and set the
SYNC level (A) to the specified value.
3) Press the PAUSE button of the adjusting remote
commander.
4) Select page: 0, address: 01, and set data: 00.
H
A