Adjustment Procedures
Equipment
1
Digital OscilloScope (For frequency measurements)
2 Wireless
Headphone
3
Multi-meter Fluke F17B or equivalent
4
Adjustment Tool (Small non-metallic screwdriver or equivalent)
5
Testing Fixture (To hold Monitor in place)
6
Power Supply ( 12VDC)
A. IR Transmitter Adjust (FrontKey Board):
Step Measure Adjust Value
Description
Apparatus
1 U1 PIN8
VR3
2.8MHz
1) SELECT
A_CH
2) Touch U1 PIN 8, Adjust
VR3
OscilloScope
2
U1 PIN12
VR1
2.3 MHz
1) SELECT
A_CH
2) Touch U1 PIN 12,
Adjust VR1
OscilloScope
3 U1 PIN8
VR4
3.8 MHz
1) SELECT
B_CH
2) Touch U1 PIN 8, Adjust
VR4
OscilloScope
4 U1 PIN12
VR2
3.2 MHz
1) SELECT
B_CH
2) Touch U1 PIN 12,
Adjust VR2
OscilloScope
B
ˊ
ALC Circuit Adjust ( Main Board):
Status Measure Adjust
Value Description Apparatus
ALC On
D30
(Cathode)
VR2
1.24V
1. Select
ALC
On
2. Touch D30 and
Adjust VR2
Multimeter
ALC Off
D30
(Cathode)
VR1
2.0V
1. Select
ALC
Off
2. Touch D30 and
Adjust VR2
Multimeter
ˋ
Содержание PKG-2000P
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