AVR-W6100/UC
A
B
C
D
5
6
7
8
5
6
7
8
47
Step
1
1.1
Mother PCB
adjustment
preparation
SYS9V
verification
BU, ACC, 14.4V
Adjustment item
Mode
VTR
Measuring
instruments
Specs
Adjusting
point
Input
(input test pin,specs,
other conditions)
Output
(measuring point,
waveform)
Measuring point :TP1823
DC V Meter
9.5V
±
0.5V
1.2
SYS5V
verification
VTR
Measuring point : TP1827
DC V Meter
5.0
±
0.5V
Step
2
2.1
2.2
Mother PCB
adjustment
preparation
Main video level
CARRIER
frequency
(1) The Video level (Vlevel) is out of spec.
When the Vlevel is more than 0.75Vp-p, the images become whitish.
When the Vlevel is less than 0.75Vp-p, the images become blackish.
(2) The CARRIER frequency is out of spec.
Between -2kHz and +2kHz: Normal operation
-2kHz to -3kHz or +2kHz to +3 kHz: Normal operation but poor sensitivity
Lower than -3kHz or hi
g
her than +3kHz: No remote control
Input test pin:
100 IRE
(white 100%),
1.0Vp-p,
(input via 75ohms)
Shift the 11 pin of
IC1601 to "H" or
select "TYPE1"as
"CARRER TYPE" on
the MENU screen.
Measuring point:
TP REM40 or TP
REM40A or the 3 pin of
IC1521
Mother PCB
adjustment
Mode
VTR
Measuring
instruments
Specs
Adjusting
point
Input
(input test pin,specs,
other conditions)
Output
(measuring point,
waveform)
Measuring point: CVBS
Oscilloscope
Frequency
counter
0.75V
±
0.03Vp-p
Measure between the
sync tip and 100 IRE
(top level).
40kHz
±
200Hz
VR1261
VR1361
BU, ACC, 14.4V
