Genius Wireless 2.4G TwinTouch+ Service Manual
Service Manual
Wireless 2.4G TwinTouch+
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
P
age 2
Table of Contents
1. Keyboard Testing Procedure: ...........................................................................................................3
A. Check the Oscillator................................................................................................................4
B. Check the U1...........................................................................................................................5
C. Check the J2 (RF 2.4G box)....................................................................................................7
2. Receiver of Keyboard Testing Procedure: .....................................................................................16
A. Check the Oscillator X1 ........................................................................................................ 17
B. Check the U2......................................................................................................................... 19
C. Check the J1 .......................................................................................................................... 24
3. Mouse Testing Procedure:.............................................................................................................. 27
A. Check the Oscillator..............................................................................................................28
B. Check the U2......................................................................................................................... 30
C. Check the J1 (RF 2.4G box)..................................................................................................33
D. Check the U1......................................................................................................................... 39
4. Receiver of Mouse Testing Procedure: ..........................................................................................44
A. Check the Oscillator..............................................................................................................45
B. Check the U1......................................................................................................................... 47
C. Check the J1 .......................................................................................................................... 51
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
P
age 3
1. Keyboard Testing Procedure:
Please check the oscillator by
Oscilloscope.
If the wave diagram is not right, please
replace old with new one.
TEST OK
Please check the voltage and the wave
diagram of U1.
If the wave diagram is different, please
replace U1.
Please check the wave diagram of J2 (RF
2.4G box).
If the wave diagrams are different, replace
J2.
Please check the membrane if there is
still problems on keyboard.
If dust, replace membrane.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
P
age 4
A. Check the Oscillator
Please check if there is
4MHz on oscillator by
Oscilloscope.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
P
age 5
B. Check the U1
♦ Check the wave diagram of U1
Check the wave diagram
of U1. The wave
diagram should be the
same with below.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
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age
6
♦ Check the voltage of U1
Check the U1 (3V
voltage) and it should be
the same with below.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
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age
7
C. Check the J2 (RF 2.4G box)
♦ Check the wave diagram of Pin 1 on J2
Check the wave diagram
of pin 1 on J2 and it
should be the same with
below.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
P
age 8
♦ Check the wave diagram of Pin 2 on J2
Check the wave diagram
of pin 2 on J2 and it
should be the same with
below.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
P
age 9
♦ Check the wave diagram of Pin 3 on J2
Check the wave diagram
of pin 3 on J2 and it
should be the same with
below.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
P
age 10
♦ Check the wave diagram of Pin 4 on J2
Check the wave diagram
of pin 4 on J2 and it
should be the same with
below.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
P
age 11
♦ Check the wave diagram of Pin 5 on J2
Check the wave diagram
of pin 5 on J2 and it
should be the same with
below.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
P
age 12
♦ Check the wave diagram of Pin 6 on J2
Check the wave diagram
of pin 6 on J2 and it
should be the same with
below.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
P
age 13
♦ Check the wave diagram of Pin 7 on J2
Check the wave diagram
of pin 7 on J2 and it
should be the same with
below.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
P
age 14
♦ Check the wave diagram of Pin 8 on J2
Check the wave diagram
of pin 8 on J2 and it
should be the same with
below.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
P
age 15
♦ Check the wave diagram of Pin 10 on J2
Check the wave diagram
of pin 10 on J2 and it
should be the same with
below.
Service Manual Wireless 2.4G TwinTouch+
Version 1.0
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age 1
6
2. Receiver of Keyboard Testing Procedure:
Please check the oscillator by
Oscilloscope.
If the wave diagram is not right, please
replace the oscillator.
TEST OK
Please check the voltage and the wave
diagram of U2.
If the wave diagram is different, please
replace U2.
Please check the wave diagram of J1 (RF
2.4G box).
If the wave diagrams are different, replace
cable.
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