Service manual

Samsung Electronics 5-9
5-1-2-9. I/O PORT OF KS32C6200
PIN NAME CIRCUIT NAME I/O STATE DESCRIPTION
TXD 0 /GOP 0 LIU-TXD 0 - UART DATA TO I-LIU CHIP IN LIU
TXD 1 /GOP 1 - 0 - UNUSED
/EDACK /GOP 2 /XDACK 0
H DEFAULT STATE
L DMA ACKNOWLEDGE
TONE / GOP 3 KEYCLICK 0 - BEEP TONE
/RSTO / GOP 4 /RESET 0
H WATCHDOG RESET OUT IS INACTIVE
L WATCHDOG RESET OUT IS ACTIVE
/IOWR 1 / GOP 5 /FAULT-TEST 0
H DEFAULT STATE
L CHECK FAULT IN PRINTHEAD
/IOWR 2 / GOP 6 RX-CTL 0
H MODEM RX PATH CONNECTION
L REMOTE START DETECTION PATH CONNECTION
/IORD 1 / GOP 7 /HEAD-EN 0
H PRINTHEAD IS DISABLE
L PRINTHEAD IS ENABLE
/IORD 2 / GOP 8 TONE-CTL 0
H MONITORING TX/RX SOUND
L BEEP SOUND
CLKOUT / GOP 9 IP-CLK 0 - CIP CLOCK
FIREPS / GOP 10 /RST-OUT 0
H EXT. CHIP IS ACTIVE
L EXT. CHIP IS RESET
/HSC / GOP 11 BIASOFF 0
H PRINTHEAD BIAS OFF
L PRINTHEAD BIAS ON
/HSM / GOP 12 CR-REF 0
H PRINT MODE IS LQ
L PRINT MODE IS DRAFT