Service manual

29
8. PIN VOLTAGES OF IC’S .
IC 101(VCTI)
Video-Controller-Text-IFAudio IC Family
Pin
No
Pin Name Short Description
V DC
ST-BY
Pin
No
Pin Name Short Description
V DC
ST-BY
1 GND Ground Platform 0 0 45 GND Ground Platform 0 0
2 VSUP8.0AU Supply Voltage Analog Audio, 8.0 V 8,13 1,35 46 VSUP3.3FE
Supply Voltage Analog Video Front-
end, 3.3 V
3,3 3,3
3 VREFAU Reference Voltage, Audio 3,67 0 47 P10 Port 1, Bit 0 Input/Output 3,27 0
4 SPEAKERL Analog Loudspeaker Output, Right 3,72 0 48 P11 Port 1, Bit 1 Input/Output 0 3,27
5 SPEAKERR Analog Loudspeaker Output, Right 3,72 0 49 P12 Port 1, Bit 2 Input/Output 3,3 3,29
6 AOUT1L Analog Audio 1 Output, Left 3,72 0 50 P13 Port 1, Bit 3 Input/Output 0 3,28
7 AOUT1R Analog Audio 1 Output, Right 3,72 0 51 P14 Port 1, Bit 4 Input/Output 0 0
8 AIN3L/AOUT2L
Analog Audio 3 Input, Left / Analog
Audio 2 Output, Left
3,43 0 52 P15 Port 1, Bit 5 Input/Output 0 0
9 AIN3R/AOUT2R
Analog Audio 3 Input, Right / Analog
Audio 2 Output, Right
3,44 0 53 P16 Port 1, Bit 6 Input/Output 2,77 2,77
10 AIN2L Analog Audio 2 Input, Left 3,7 0 54 P17 Port 1, Bit 7 Input/Output 2,79 2,79
11 AIN2R Analog Audio 2 Input, Right 3,7 0 55 P20 Port 2, Bit 0 Input/Output 3,32 2,9
12 AIN1L Analog Audio 1 Input, Left 3,7 0 56 P21 Port 2, Bit 1 Input/Output 3,24 0,6
13 AIN1R/SIF
Analog Audio 1 Input Right/Analog
2nd Sound IF Output
3,7 0 57 SCL I²C Bus Clock Input/Output 3,3 3,06
14 TAGC Tuner AGC Output 3,77 0,82 58 SDA I²C Bus Data Input/Output 3,3 3,06
15 VREFIF Reference Voltage, IF ADCs 2,42 0,9 59 VPROT Vertical Protection Input 0,05 0
16 IFIN- Differential IF Input 2,43 0,76 60 HOUT Horizontal Drive Output 1,55 3,29
17 IFIN+ Differential IF Input 2,43 0,76 61 HFLB Horizontal Flyback Input 0,65 0
18 RESETQ Reset Input/Output 3,29 3,27 62 SAFETY Safety Input 0,03 0,43
19 VSUP5.0FE
Supply Voltage Analog IF Front-end,
5.0 V
4,96 1 63 GNDDAC Ground Video DACs 0 0
20 VSUP5.0IF Supply Voltage IF ADC, 5.0 V 4,92 1 64 VSUP3.3DAC Supply Voltage Video DACs, 3.3 V 3,29 1
21 VSUP3.3DIG Supply Voltage Digital Core, 3.3 V 3,14 1 65 VSUP3.3IO
Supply Voltage I/O Ports, 3.3 V
(main and Standby supply)
3,31 3,31
22 GND Ground Platform 0 0 66 GND Ground Platform 0 0
23 GND Ground Platform 0 0 67 GND Ground Platform 0 0
24 VSUP1.8DIG
Supply Voltage Digital Core, 1.8 V
(main and stand by supply)
1,85 1,97 68 VSUP3.3BE
Supply Voltage Analog Video Back-
end, 3.3 V
3,28 1
25 XTAL1 Analog Crystal Input 1,71 1,7 69 XREF Reference Current for RGB DACs 1,22 0
26 XTAL2 Analog Crystal Output 1,74 1,72 70 VRD Reference Voltage for RGB DACs 1,24 0,95
27 P22 Port 2, Bit 2 Input/Output 3,27 3,26 71 BOUT Analog Blue Output 4,66 1
28 P23 Port 2, Bit 3 Input/Output 3,27 3,26 72 GOUT Analog Green Output 4,66 1
29 VIN11 Analog Video 11 Input 0,12 0,09 73 ROUT Analog Red Output 4,66 1
30 VIN10 Analog Video 10 Input 0 0,09 74 SVMOUT Scan Velocity Modulation Output 1,77 0,37
31 VIN9 Analog Video 9 Input 0,5 0,09 75 BIN Analog Blue Input, Back-end 0,19 0
32 VIN8 Analog Video 8 Input 0,5 0,09 76 GIN Analog Green Input, Back-end 0,19 0
33 VIN7 Analog Video 7 Input 0,99 0,09 77 RIN Analog Red Input, Back-end 0,19 0
34 VIN6 Analog Video 6 Input 0,99 0,09 78 FBIN Fast Blank Input, Back-end 0,07 0,07
35 VIN5 Analog Video 5 Input 0,99 0,09 79 GNDM Reference Ground for Sense ADC 0 0
36 VIN4 Analog Video 4 Input 1 0,09 80 SENSE Sense ADC Input 0,23 0
37 VIN3 Analog Video 3 Input 1 0,09 81 RSW1 Range Switch 1 Output 0,03 0
38 VIN2 Analog Video 2 Input 1 0,09 82 RSW2 Range Switch 2 Output 0,01 0
39 VIN1 Analog Video 1 Input 1 0,09 83 EW Vertical Parabola Output 4,37 0
40 VOUT1 Analog Video 1 Output 1,08 1,49 84 VERT- Differential Vertical Sawtooth Output 0,82 0
41 VOUT2 Analog Video 2 Output 1,08 1,49 85 VERT+ Differential Vertical Sawtooth Output 0,79 0
42 VOUT3 Analog Video 3 Output 1,17 0,98 86 TEST Test Input, reserved for Test 3,71 0
43 VSUP1.8FE
Supply Voltage Analog Video Front-
end, 1.8 V 1,9 1,9 87 VSUP5.0BE
Supply Voltage Analog Video Back-
end, 5.0 V 5,01 0
44 GND Ground Platform 0 0 88 GND Ground Platform 0 0