Mhz Origin Oscillation Adjustment (Vc-211 Board); Sync Level Adjustment (Vc-211 Board) - Sony FCB-IX47 Service Manual

2-3. CAMERA ADJUSTMENTS

1. 28 MHz Origin Oscillation Adjustment (VC-211 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 IC101
Measurement Point
Measuring Instrument Frequency counter
Adjustment Page F
Adjustment Address 2C
Pin !™ of IC101 :
Specified Value
f=14.318181MHz±68Hz (NTSC)
f=14.187500MHz±68Hz (PAL)
Note 1: NTSC MODEL: FCB-IX47/470
PAL MODEL: FCB-IX47P/470P
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: F, address: 2C, 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.
2-14 (E)

2. SYNC Level Adjustment (VC-211 board)

Set the Y signal output level.
Subject All black
Pin 6 of CN301
Measurement Point
Measuring Instrument Oscilloscope
Adjustment Page F
Adjustment Address 49
Specified Value A = 286±5mV (NTSC)
A = 300±5mV (PAL)
Note: Terminate at 75Ω resistor and measure.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: F, address: 49, 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
FCB-IX47/47P
FCB-IX470/470P