Service manual

EPSON ELP-3500 Service Manual
1-17
Mouse Emulation Function
This function converts data transmitted from a remote control into mouse data for a PS/2,
ADB, or serial mouse. The ELP-3500 mouse function does not support a serial mouse. In
the I/F CPU, the function controls the mouse CPU, which controls the multi-mouse port.
Table 1-5. Multi-mouse Connector Mode
Mode ID 0 ID 1 Note
Serial mouse 0V 0V Not supported in the ELP-3500
PS/2 0V 5V
ADB 5V 0V
PC-98 5V 5V
The mouse is specified by the cable connected to the multi-mouse connector.
Table 1-6. Multi-mouse Connector Pin Assignments
Pin Signal Type Functions
1 XA/CLK/ADB Encoder signal / I/O data signal / synchronous
clock signal
2 XB/DATA Encoder signal / I/O data signal
3 YA Encoder signal
4 YB Encoder signal
5 LEFT/ID0 Left button signal/control signal
6 RIGHT/ID1 Right button signal/control signal
7 NC Common Disabled
8 TxD Serial Transmit signal
9 RxD Serial Receive signal
10 DTR Serial Projector data terminal ready signal
11 Serial PC data set ready signal
12 DSR Common PC power ON signal
13 GHD Common Ground
The current capacity of the multi-mouse port
The supplied current capacity is 50 mA. (For example, the current consumed by
an ordinary mouse is approximately 20-30 mA.)
In sleep mode
In sleep mode the mouse emulation function is also enabled.