Samsung VP-A30 Service Manual page 56

Alignment and Adjustment
2-9. PB Output Level (Hi8)
: This adjustment is performed to set the sync-
tip level of the composite video signal.
Maladjusted Y-FM carrier impact to the play-
back picture, there may be black or white dot
noise.
a. Preparations
HI8 STANDARD COLOR BAR TAPE
RECORDED WITH SP SPEED
TAPE
EQUIPMENT OSCILLOSCOPE
OTHER CONNECT THE MONITOR(75Ω)
TEST POINT CN605 PIN13
ADDRESS 14
NAME PB OUT-LEVEL (HI8)
b. Connect a power source.
c. Get into the VCR adjustment mode.
d. Press the "DATE/TIME(MODE UP)/TITLE
(MODE DOWN)" button of CAMCORDER so
as to select the address 14.
e. Insert a Hi-8 standard color bar tape and press
the PLAY button.
f. Connect the oscilloscope counter to the
addressed Test Point.
g. Press the "C/RESET(DATA UP)/Z/RTN(DATA
DOWN)" button so that the CN605 PIN13 is
1.0±0.02Vp-p from SYNC to peak level.
WHITE ( APPROX. 100% )
APPROX.
0.7V
APPROX.
0.3V
H
h. Be sure to press the "MENU/ENTER(CON-
FIRM)" button of CAMCORDER to memorize
setting.
i. Reset the power source so as to fix the new data
to the camcorder's EEPROM.
5-38
2-10. Y-FM Carrier (Hi8)
: This adjustment is performed to set the sync-
tip level of the composite video signal.
Maladjusted Y-FM carrier impact to the play-
back picture, there may be black or white dot
noise.
a. Preparations
TAPE
EQUIPMENT
OTHER
TEST POINT
ADDRESS
NAME
b. Connect a power source.
c. Get into the VCR adjustment mode.
d. Press the "DATE/TIME(MODE UP)/TITLE
(MODE DOWN)" button of CAMCORDER so
as to select the address 15.
e. Insert a Hi-8 Tape to the camcorder.
f. Press the START/STOP button on the Rear
board so as to set the camcorder to RECORD-
ING mode.
g. Connect the frequency counter to the addressed
Test Point.
h. Press the "C/RESET(DATA UP)/Z/RTN(DATA
DOWN)" button so as to set the frequency to
5.99MHz ±0.02MHz
i. Be sure to press the "MENU/ENTER(CON-
FIRM)" button of CAMCORDER to memorize
setting.
j. Reset the power source so as to fix the new data
to the camcorder's EEPROM.
1.0 0.02Vp-p
HI8 TAPE FOR RECORDING
FREQUENCY COUNTER
NONE
IC 201 PIN 13
15
Y-FM CARRIER (HI-8)
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