Panasonic PT-40LC12 Service Manual page 70

I/O CHART OF IC2301
Pin No. I/O Port No. Signal Name Description
1 O P21 VCR_PROJ_PVDATA SERIAL DATA 1
2 I P22 VCR_PROJ_SCK SERIAL CLOCK
3 I P23 RXD RS232C RECEIVED DATA
4 O P24 TXD RS232C TRANSMITTED DATA
5 - P25 NC (Not used)
6 I - VDD VDD (+3.3V)
7 - - VSS Ground
8 - P26 NC (Not used)
9 - P27 NC (Not used)
10 - P30 SYS_HS (Not used)
11 I P31 L_ERR LAMP ERROR PULSE (ON(H)/OFF(L)/ERROR(PULSE))
12 I P32 FAN_LOCK FRONT/LAMP FAN LOCK(H)
13 - P33 NC (Not used)
14 - P34 NC (Not used)
15 - P35 NC (Not used)
16 - P36 NC (Not used)
17 - P37 NC (Not used)
18 O - VPP (Not used)
19 - P100 NC (Not used)
20 O P101 SOL_ON_H SOLENOID(SHUTTER) ON(H)
21 - P102 NC (Not used)
22 - P103 NC (Not used)
23 O P104 PO_EXT_SEL MAIN SCALER SYNC SELECT (EXTERNAL(H)/INTERNAL(L))
24 O P105 IP_CLK_ON_H IP CONVERTER CLOCK ON(H)
25 O P106 IP_RESET_L IP CONVERTER RESET(L)
26 - P107 NC (Not used)
27 - P110 VPP_ON_H (Not used)
28 - P111 NC (Not used)
29 - P112 NC (Not used)
30 - P113 NC (Not used)
31 I - RESET RESET(L)
32 - P114 NC (Not used)
33 - - XT2 (Not used)
34 I - VDD VDD (+3.3V)
35 O - X2 19.66 MHz CLOCK
36 I - X1 19.66 MHz CLOCK
37 - - VSS Ground
38 - - NC (Not used)
39 - P120 NC (Not used)
40 O P90 LR_INV LEFT AND RIGHT REVERSAL CONTROL OF DISPLAY PICTURE
41 O P91 SYNC_SEL A KIND OF SIGNAL DETECTION FOR IC9204 (MAIN SCALER(L)/SUB SCALER(H))
42 - P92 NC (Not used)
43 - P93 VIDEO/480I_L (Not used)
44 I P94 3.3V_IN 3.3V LINE DETECT (NORMAL(H)/ABNORMAL(L))
45 I P95 7V_IN 7V LINE DETECT (NORMAL(H)/ABNORMAL(L))
46 O P96 L_RESET(STBY) STANDBY(L)/NORMAL(H)
47 I P40 14V_IN 14V LINE DETECT (NORMAL(H)/ABNORMAL(L))
48 I P41 16V_IN 16V LINE DETECT (NORMAL(H)/ABNORMAL(L))
49 O P42 LCD_ON_H LCD POWER ON(H)
50 O P43 D_RESET RESET(L)
Pin No. I/O Port No. Signal Name
51 - P44 NEW_OSD_H
52 O P45 L_ON_H
53 O P46 FAN1_ON_H
54
O P47 FAN2_ON_H
55 I - BVDD
56 - - BVSS
57 O P50 TG_CS
58 O P51 MAIN_SCALER_CS
59 O P52 SUB_SCALER_CS
60 O P53 COLOR_COR_CS
61 O P54 DAC1_CS_H
62 - P55 DAC2_CS_H
63 O P56 OSD_CS
64 O P57 SYNC_CS
65 - P60 XL_CS
66 O P61 VCR_OSD_H
67 O P62 CORRECT_ON_L
<Factory use only> 68 - P63 PC1_H
69 O P64 PC/VIDEO_PC_H
70 - P65 COMP/VIDEO_COMP_H
71 I - AVDD
72 - - AVSS
73 I - AYREF
74 I P70 THERMO1_IN
75 I P71 THERMO2_IN
76 I P72 FILTER_OPEN_H
77 - P73 PC_NC_H
78 - P74 SELF_CHECK_H
79 - P75 MAIN_NC_H
80 I P76 CPS_L
81 - P77 INTLACE
82 I P80 FILTER_ERR_IN
83 - P81 THERMO4_IN
84 - P82 MODE_CHG_H
85 - P83 FLASH_WRITE_H
86 - P00 NMI
87 - P01 NC
88 I P02 FROM_VCR_CS
89 - P03 NC
90 - P04 NC
91 - P05 NC
92 - P06 NC
93 - P07 NC
94 I/O P10 IIC_DATA
95 - P11 NC
96 O P12 IIC_SCK
97 I P13 PROJ_IC_SI
98 O P14 PROJ_IC_SO
99 O P15 PROJ_IC_SCK
100 I P20 VCR_PROJ_VPDATA
NOTE: For placing a purchase order of the parts,
be sure to use the part number listed in the parts list.
Do not use the part number on this diagram.
Description
(Not used) <Factory use only>
LAMP ON/OFF CONTROL (ON(H)/OFF(L))
FRONT FAN ON(H)
LAMP FAN ON(H)
VDD (+3.3V)
Ground
TIMING GENERATOR(IC9503) CS (H)
MAIN SCALER(IC9202) CS (L)
SUB SCALER(IC9508) CS (L)
COLOR CORRECTION(IC9801) CS (L)
DAC(IC9803) CS (H)
(Not used)
OSD(IC9510) CS(L)
SYNC SELECTOR(IC9204) CS (L)
(Not used)
TV OSD CS(H)/PROJECTOR OSD CS(L)
NON-UNIFORMITY COLOR CORRECT ON(L)/THROUGH(H)
(Not used)
PC(H)/SUB VIDEO(L)
(Not used)
VDD (+3.3V)
Ground
VDD (+3.3V)
TEMPERATURE DATA 1 (FOR FRONT FAN)
TEMPERATURE DATA 2 (FOR FRONT FAN)
LAMP COVER OPEN(H)
(Not used)
(Not used)
(Not used)
COMPOSITE IN DETECT (L)
(Not used)
FILTER ERROR DETECTION (A/D IN)
(Not used)
(Not used) <Factory use only>
(Not used) <Factory use only>
Ground
(Not used)
IC2301 CS(L) FROM IC6001
(Not used)
(Not used)
(Not used)
(Not used)
(Not used)
I2C SERIAL DATA
(Not used)
I2C SERIAL CLOCK
PROJECTOR SERIAL DATA 1
PROJECTOR SERIAL DATA 0
PROJECTOR SERIAL CLOCK
SERIAL DATA 0
NOTE:
FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES,
REFER TO BEGINNING OF SCHEMATIC SECTION.
NOTE:
PARTS ENCLOSED IN DASHED LINES MARKED "PT" ARE NOT USED.