Sanyo PLV-55WM1, Service Manual

Page: 90 / 152

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Control Port Functions
1 OE IO_ENB I
2 - 9 D0 - D7 D0 - D7 I
10 GND GND -
11 CK CS0 Output Port Chip Select Enable = L I
12 Q7 ECO_LED ECO LED Eco = H O
13 Q6 READY_LED Ready LED Ready = H O
14 Q5 LAMP_LED Lamp Replace LED Replace = H O
15 Q4 TEMP_LED Warning Temperature LED Warning = H O
16 Q3 PWR_LED AC Power LED ON = H O
17 Q2 KO3 KEY Scan Output O
18 Q1 KO2 KEY Scan Output O
19 Q0 KO1 KEY Scan Output O
20 Vdd Power 3.3V -
Pin No. Name Function I/O
●
Output Bus Buffer (IC1801, TC74LCX574FT)
1 OE IO_ENB I
2 - 9 D0 - D7 D0 - D7 I
10 GND GND -
11 CK CS0 Output Port Chip Select Enable = L I
12 Q7 MUTE_M Not used O
13 Q6 PANEL_SW ON = H O
14 Q5 S/H_B_ST Strobe for B sample & hold (IC501) O
15 Q4 S/H_G_ST Strobe for G sample & hold (IC1501) O
16 Q3 S/H_R_ST Strobe for R sample & hold (IC2501) O
17 Q2 DVI_RST Reset for DVI O
18 Q1 5V_SW Switch for Power ON/Standby ON = H O
19 Q0 FAN_SW Switch for FAN ON = H O
20 Vdd Power 3.3V -
Pin No. Name Function I/O
●
Output Bus Buffer (IC1802, TC74LCX574FT)
1 OE IO_ENB I
2 - 9 D0 - D7 D0 - D7 I
10 GND GND -
11 CK CS2 Output Port Chip Select Enable = L I
12 Q7 RESET_SM_PW O
13 Q6 RESET_IP_PW O
14 Q5 LAMP_POW O
15 Q4 DVI_ENB_PW O
16 Q3 AV_ENB_PW O
17 Q2 PC_ENB_PW O
18 Q1 DDC_SW2_PW O
19 Q0 DDC_SW1_PW O
20 Vdd Power 3.3V -
Pin No. Name Function I/O
●
Output Bus Buffer (IC1803, TC74LCX574FT)
1 OE IO_ENB I
2 - 9 D0 - D7 D0 - D7 I
10 GND GND -
11 CK CS2 Output Port Chip Select Enable = L I
12 Q7 Not used O
13 Q6 Not used O
14 Q5 Not used O
15 Q4 Not used O
16 Q3 Not used O
17 Q2 AD_OUT_PW O
18 Q1 SYS_SW O
19 Q0 LPS_PW O
20 Vdd Power 3.3V -
Pin No. Name Function I/O
●
Output Bus Buffer (IC1804, TC74LCX574FT)
Pin No.
●
Ou
Na
utput us Buffer
Func
(IC
on
801 TC 4LCX574FT)
I/O
Out uttp tpu u s Buffe er ((IC18 C18 803 3, TTC74 4LC