Control Port Functions; System Control & I/O Port Table - Canon LV-5200U Service Manual

3. CONTROL PORT FUNCTIONS

3.1 System Control & I/O Port Table
IC Ref No. Pin/Name I/O
IC301 PortA0 I/O
PortA1 I/O
PortA2 I/O
PortA3 I/O
PortA4 O
PortA5
PortA6 O
PortA7 O
PortB0 I/O
PortB1 I/O
PortB2 I/O
PortB3
PortB4 I/O
PortB5 I/O
PortB6 I/O
PortB7 I/O
IC1803 12 O
13 O
14 O
15 O
16 O
17 O
18 O
19 O
IC1804 12 O
13 O
14 O
15 O
16 O
17 O
18 O
19 O
IC1805 12 O
13 O
14 O
15 O
16 O
17 O
18 O
19 O
IC1806 12 O
13 O
14 O
15 O
16 O
17 O
18 O
19 O
IC1813 12 O
13 O
14 O
Signal Name Function
ROMWEL For ICE
ROMWEH For ICE
BOOTWE For ICE
DDC_CK NVRAM I2C CLK for DDC
5V_SW Power ON/OFF
I MT_DAT Judge 15KHz system
IO_Reset Initialize I/O
LAMP_POW Lamp-ON
M_SCL IIC CLK
M_SDA IIC DATA
VIEWER_ON Not used
I PF_LAMPDOWN PowerFail Monitor
DDC_DT NVRAM I2C DATA for DDC
CARD_IN Not used
SCDT Not used
W_LAN_IN Not used
Mute Mute ON/OFF
LAMP_REP_LED Lamp Replace LED Drive
READY_LED Ready LED Drive
TEMP_LED Temp Warning LED Drive
POW_LED Power LED Drive
KO3 Main Key Switch
KO2 Main Key Switch
KO1 Main Key Switch
CG_Filter Not used
VHDREN Micronas chip Enable
VFIELD_SW Vfield PC/AV Selection
DPC_ON DVI/PC Selection
PC/AV_SW PC/AV Selection
S/CV_SW Video/S-Video Selection
MCLK_SW Master CLK ON/OFF
FanDrive_SW Fan Drive ON/OFF
ZOOM- Zoom-
ZOOM+ Zoom+
MOUSE/CPU_SW Mouse Enable ON/OFF
PCLK_ON AD9884 CLK ON/OFF
VCLK_ON Micronas CLK ON/OFF
MT_RESET Matrix Enable ON/OFF
MOUSE/RESET Mouse Reset
DCLK_ON DVI/PC Selection
ADPW AD9884 ON/OFF
ECO_SW Normal/Eco Selection
DCLK_SW CXD3526 CLK ON/OFF
USB_EN Not used
VPC_ON Sync select ON/OFF for Micronas
PC_ON Sync select ON/OFF for AD9884
AC_FILT Filter ON/OFF for PS2
USB_RST Not used
RCID_SW3 Remote Control ID1
RCID_SW2 Remote Control ID2
RCID_SW1 Remote Control ID3
4-15
Part 4: Troubleshooting
Note
MainPower-ON: High
15KHz: High
Fixed Low
ON: High
Enable: High
AV: High
DVI: Low
PC: High
Video: Low
ON: High
ON: High
ON: Low
ON: Low
Enable: Low
ON: Low
ON: Low
Enable: High
Reset: Low
DVI: Low
ON: High
Eco: High
ON: High
ON: Low
ON: Low
15KHz: High