JVC XM-P55 Service Manual page 10

XM-P55
XM-PJ1
Description
Pin
Symbol
Function and Operation
No.
Power supply
Communications line terminals to CXA2523AR,
connect to XSTB terminal
Communications line terminals to CXA2523AR,
connect to SWDT terminal
Communications line terminals to CXA2523AR,
connect to SCLK terminal
Communications line terminals to CXA2523AR,
connect to XLAT terminal
Non connection
Non connection
Connect to XRST terminal of CXD2655R
Connect to XLAT terminal of CXD2655R
Supplies +12V when flash memory is writing.
Ground
Remote control UART output
Connect to SWDT terminal of CXD2655R
Remote control URAT input
Connect to SRDT terminal of CXD2655R
Non connection
Connect to SCLK terminal of CXD2655R
RF source pre-charge output
Laser ON / OFF output
RF source OFF output
Sled driven voltage ON/OFF
Ground
Clear signal of power supply circuit flip-flop
MUTE output for audio circuit
Starting control output
Debug / test mode
Parallel mode monitor
Parallel mode monitor
Parallel mode monitor
Parallel mode monitor
Debug / test mode
Debug / test mode
Debug / test mode
Sleep function enable input
Power supply
Non connection
Non connection
Non connection
Non connection
Non connection
Non connection
Non connection
Non connection
Ground
Non connection
Ground
Non connection
Non connection
LSI source down detective input
ALL tracks repeat key input
2-8
Pin
Symbol
Function and Operation
No.
Connect to MPC17A39 power save terminal
Connect to CXA8069 start / stop terminal
CXD2655R monitor output selection
CXD2655R monitor output selection
CXD2655R monitor output selection
CXD2655R monitor output selection
Ground
PLAY key input
Starting signal output for power supply circuit
Remote control power OFF
Non connection
Power supply
Microcomputer reset input
Power supply
Ground
Connect to Crystal NAX0275-001X
Connect to Crystal NAX0275-001X
Power supply
EEPROM2 chip select terminal output
EEPROM communication serial clock output
EEPROM communication serial DATA output
EEPROM chip select terminal output
Power supply
Power supply
Power supply
Power supply
Power supply
Key input (analog)
Non connection
Non connection
Battery voltage input (analog)
Non connection
Connect to temperature-detective thermistor
Remote control PLAY key input
Disc detective switch input
Ground
Connect to XINT terminal of CXD2655R
Connect to SQSY terminal of CXD2655R
Non connection
Non connection
Non connection
Ground
Connect to MINT0 terminal of CXD2655R
Non connection
Connect to BEEP of audio circuit
Connect to MINT3 terminal of CXD2655R
Connect to SENS terminal of CXD2655R
EEPROM communication serial data input
Non connection
ACTIVE CLEAR BASS circuit ON / OFF output