Samsung VP-L100, Руководство по обслуживанию

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Alignment and adjustment
5-36 Samsung Electronics
5-3 VCR Section Adjustment
5-3-1 Preparations
1. Equipment ;
1) TV monitor.
2) 2CH oscilloscope(Over 20Mhz, Eguiped delay
mode ).
3) Frequency counter.
4) Pattern Generator(Equiped composite video out).
5) DC power supply(6V to 7V).
6) Suupplied standard tape(SP mode, Color-Bar).
7) 8mm blank tape for record(Hi8 is not available).
2. Composition of VCR section
1) Main PCB (System Control, Servo, Video, Audio,
DC/DC Converter, Camera)
2) Rear PCB
3) Function PCB (Function Menu, Function VCR)
3 Pattern Generator setting ;
The pattern generator satify to the regular
specifications because VCR adjustment have to use
the composite video out of pattern generator.
Select the pattern generator to full color bar and
connect the output to oscilloscope.
-.Confirm 0.3V level of the SYNC-TIP.
-.Confirm 0.7V level of the VIDEO-SGNAL.
-.Confirm 0.3V level of the COLOR-BURST.
4. How to get into ÒVCR adjustment Ò mode
1) Supply power source to the camcorder.
(DC cable or DC supply)
2) Set the CAM/OFF/PLAYER switch to PLAYER.
3) Eject the cassette housing with the EJECT button.
4) Press and hold the EJECT button and the STOP
button on the FUNCTION VCR board at the
same time.
: If the OSD shows as below, VCR adjustment
mode is activated successfully.
5) Do the adjustment according to each adjustment
method.
: Release of the VCR adjustment mode is possible
by below.
-.DC power resourcing (means reattachment after
detachment.
-.Resetting of the CAM/OFF/PLAYER switch
(means reset to PLAYER after OFF).
WHITE(APPROX. 100%)
1.0 0.05Vp-p
H
APPROX.
0.7V
APPROX.
0.3V
Fig. 1 Color bar signal pattern generator
0:00:00
0. EMPHA
EPR:XX EVR:XX