Samsung VP-D70 Service Manual page 26

3-1-2. VCR Adjustment
1. VCR Adjustment Items
Items
V-REF Adjustment
EXTRA 7D
RECCUR 80
A-REF1 80
A-REF2 80
A-REF3 80
HDSWP Adjustment
ZOOMVR Adjustment
MODELOPTION
OPTION
DUBCUR 80
* MODELOPTION
Model
VP-D70
VP-D73
VP-D75
VP-D77
2. How to adjust Video-Reference (V-REF).
1) Connect video output cable to wave form scope. The wave form scope must be connected to monitor.
(75Ω termination)
2) Set to the VCR adjustment mode.
3) Adjust VREF so that SYNC level of video output signal is PAL(43 IRE) and NTSC(40 IRE).
PAL
Samsung Electronics
Adj. value
Video reference
Audio VCO PLL
REC current
Audio 48KHz mode
Audio 44.1KHz mode
Audio 32KHz mode
Head Adjust switch
Adjust center value in the ZOOM switch
RESERVED(fixed value)
DUB REC CURRENT
Adj.value
O2
C2
CA
D2
Adjustment and Adjustment
Description
Model Adj.value
SC-D70
SC-D73
SC-D75
SC-D77
NTSC
O6
C6
CE
D6
3-3