Genius Wireless 2.4G TwinTouch+ User manual

Service Manual

Wireless 2.4G TwinTouch+

Service Manual Wireless 2.4G TwinTouch+

Version 1.0

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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+

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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

re

p

lace 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.

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A. Check the Oscillator

Please check if there is

4MHz on oscillator by

Oscilloscope.

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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.

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♦ Check the voltage of U1

Check the U1 (3V

voltage) and it should be

the same with below.

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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.

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♦ 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.

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♦ 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+

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♦ 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+

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♦ 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.

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♦ 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.

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♦ 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.

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♦ 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.

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♦ 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.

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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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A. Check the Oscillator X1

♦ Please check the first point of Oscillator X1

Please check if there is

8MGH on oscillator.

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♦ Please check the second point of Oscillator X1

Please check if there is

8MGH on oscillator.

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B. Check the U2

♦ Check the wave diagram of Pin 5 on U2

Check wave diagram of pin5

on U2 when keyboard

transmits signal to receiver.

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♦ Check the wave diagram of Pin 9 on U2

Check wave diagram of

pin9 on U2 when keyboard

transmits signal to receiver.

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Genius Wireless 2.4G TwinTouch+ User manual

Genius Wireless 2.4G TwinTouch+ User manual

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