JVC GX-N7E Service Manual page 17

Color video camera
Table of Contents

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2. SIGNAL
SYSTEM
BIAS LIGHT
Adjustment
BIAS LIGHT SH COMP.-Y
Adjustment
Y SET UP goes
ON and OFF by
switching AGC
NO
Y SET UP Adjustment
Y GAIN Adjustment
Y KNEE Adjustment
AUTO IRIS Adjustment
OC BLANCE
Adjustment
PHASE SET
Adjustment
R' GAIN, B' GAIN
Adjustment
Yu-R Adjustment
BLK SET Adjustment
CARRIER BALANCE
Adjustment
G, R, 8 GAIN
Adjustment
COLOR 7, WHITE
BALANCE Adjustment
Is dark
section tracking
effected ?
YES
R, B BL SH COMP.
Adjustment
SC PHASE BURST
LEVEL
Adjustment
R ADD, B ADD
Adjustment
CHROMA GAIN
Adjustment
SHADING COMP.
Adjustment
CHROMA LIMITER
Adjustment
OUTDOOR R, B GAIN
Adjustment
AUTO WHITE BALANCE
Adjustment
BACK FOCUS
Adjustment
AUTO FOCUS
Adjustment
BATTERY ALARM
Adjustment
FINAL CHECK
|
(No. 5550) 11E
Measurin
No.
item
:
i
instrument
Test point and Adjustment part
Description
i
1. [5v
pe
Adjustment | Voltmeter
| C82) (6V LINE)
R261(5V ADJ.)
Tset the DC voltage to 5.0 V £0.05 V scale of
[PRE-PRO
BOARD] {MOTHER BOARD] | the meter
(Note)
The
voltmeter
should
be
precisely
adjusted. Ensure that only an accurate
tester is used.
2. | SSG
. | Adjustment
2-1)
fsc
Frequency
Adjustment]
counter
2-2|
fh
Adjustment
DC Voltmeter
oe
5
[SSG BOARD]
«D
[SSG BOARD}
C11(SC FREQ.)
[SSG BOARD]
TO1 (fh OSC)
[SSG BOARD]
etl
SC FREQ.
This adjustment is only done when repairing the SSG IC and peripherals that require adjustment.
In most cases, you can go directly to step 2. "Adjusting the Deflection System".
:
Turn the C11. (SC FREQ.) trimmer. to obtain
a frequency counter reading of 4.433619 MHz
+7 Hz.
(Note)
Take care not to short-circuit any of
the IC terminals.
Turn the core of the T441 (fh OSC) to obtain
a DC voltmeter reading of 25 V+0.5V..
12E (No. 5550)

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