Pin Voltages Of Ic's - Beko E1 CHASSIS Service Manual

8.

PIN VOLTAGES OF IC's

PIN SYMBOL DESCRIPTION
1
P1.3/T1 port 1.3 or Counter/Timer 1 input
2
P1.6/SCL port 1.6 or I2C-bus clock line
3
P1.7/SDA port 1.7 or I2C-bus data line
4
P2.0/TPMW port 2.0 or Tuning PWM output
port 3.0 or ADC0 input or PWM0
5
P3.0/ADC0/PWM0
output
port 3.1 or ADC1 input or PWM1
6
P3.1/ADC0/PWM1
output
port 3.2 or ADC2 input or PWM2
7
P3.2/ADC0/PWM2
output
port 3.3 or ADC3 input or PWM3
8
P3.3/ADC0/PWM3
output
digital ground for µ-Controller core
9
VSSC/P
and periphery
port 0.5 (8 mA current sinking
10
P0.5
capability for direct drive of LEDs)
port 0.6 (8 mA current sinking
11
P0.6
capability for direct drive of LEDs)
12
VSSA digital ground of TV-processor
13
SECPLL SECAM PLL decoupling
2nd supply voltage TV-processor
14
VP2
(+8V)
supply voltage decoupling of
15
DECDIG
digital circuit of TV-processor
16
PH2LF phase-2 filter
17
PH1LF phase-1 filter
18
GND3 ground 3 for TV-processor
19
DECBG bandgap decoupling
20
AVL Automatic Volume Levelling
21
VDRB vertical drive B output
22
VDRA vertical drive A output
23
IFIN1 IF input 1
24
IFIN2 IF input 2
25
IREF reference current input
26
VSC vertical sawtooth capacitor
27
AGCOUT tuner AGC output
28
AUDEEM Audio deemphasis
29
DECSDEM decoupling sound demodulator
30
GND2 ground 2 for TV processor
31
SNDPLL narrow band PLL
32
IC internally connected
(*) Stand-by values are given the parenthessis
NOTE: The function of pin 15, 27, 33 and 48 is dependent on the mode of operation (mono intercarrier mode / QSS IF amplifier) and is
controlled by some software control bits.3
PIN SYMBOL DESCRIPTION
1
INPUT +(1) 1st Input(Positive)
2
N.C. No Connection
3
INPUT-(1) 1st Input(Negative)
4
GND Ground
5
GND Ground
6
OUTPUT(1) 1st Output
7
N.C. No Connection
8
+V Vcc; 12,5 V in this concept
S
IC101(TDA 9345)
TV signal processor-Teletext decoder with embedded Controller
V DC(*)
2,46(2,4)
4,88(0)
4,88(0)
0,30(0)
0,15(3,22)
2,48(0)
1,65(1,62)
0(0)
0(0)
0(2,72)
0(0)
0(0)
2,28(0)
8,15(0)
5,01(0)
2,56(0)
3,92(0)
0(0)
3,99(0)
0,01(0,01)
0,94(0)
0,98(0)
1,85(0)
1,85(0)
3,86(0)
3,88(0)
1,46(0)
3,15(0)
2,21(0,28)
0(0)
2,21(0)
0,34(0)
IC301(TDA 2822)
TV signal processor-Teletext decoder with embedded Controller
V DC(*)
0(0)
0(0)
0,5(0,5)
0(0)
0(0)
5,79(6,38)
0(0)
12,41(13,83)
PIN SYMBOL DESCRIPTION
33
HOUT horizontal output
34
FBISO flyback input/sandcastle output
35
AUDTEXT external audio input
36
EHTO EHT/overvoltage protection input
37
PLLIF IF-PLL loop filter
38
IFVO/SVO IF video output / selected CVBS output
39
VP1 main supply voltage TV processor
40
CVBS1 internal CVBS input
41
GND ground for TV processor
42
CVBS/Y CVBS3/Y input
43
C chroma input
44
AUDOUT audio output
45
INSSW2 2nd RGB / YPRPB insertion input
46
R2/P IN 2nd R input / PR input
R
47
G2/YIN 2nd G input / Y input
48
B2/P IN 2nd B input / PB input
B
49
BCLIN beam current limiter input
50
BLKIN black current input / V-guard input
51
RO Red output
52
GO Green output
53
BO Blue output
analog supply of Teletext decoder and
54
VDDA
digital supply of TV-processor (3.3 V)
55
VPE OTP Programming Voltage
56
VDDC digital supply to core (3.3 V)
57
OSCGND oscillator ground supply
58
XTALIN crystal oscillator input
59
XTALOUT crystal oscillator output
60
RESET reset
61
VDDP digital supply to periphery (+3.3 V)
62
P1.0/INT1 port 1.0 or external interrupt 1 input
63
P1.1/T0 port 1.1 or Counter/Timer 0 input
64
P1.2/INT0 port 1.2 or external interrupt 0 input
PIN SYMBOL DESCRIPTION
9
N.C. No Connection
10
N.C. No Connection
11
OUTPUT(2) 2nd Output
12
GND Ground
13
GND Ground
14
INPUT-(2) 2nd Input(Negative)
15
N.C. No Connection
16
INPUT+(2) 2nd Input(Positive)
17
V DC(*)
0,88(3,12)
0,41(0)
3,71(-0,06)
1,72(0)
2,45(0)
3,05(0)
8,12(0)
3,79(0)
0(0)
3,33(0)
1,54(0)
3,27(0)
0,03(0)
2,54(0)
2,54(0)
2,54(0)
2,28(0,32)
7,13(0)
2,81(-0,03)
2,81(-0,03)
2,79(-0,03)
3,24(3,24)
0(0)
3,27(3,24)
0,03(0)
1,57(1,57)
1,66(1,62)
0(0)
3,27(3,18)
3,58(3,48)
3,29(3,24)
3,29(3,24)
V DC(*)
0(0)
0(0)
5,79(6,49)
0(0)
0(0)
0,5(0,5)
0(0)
0(0)