Beko E1 CHASSIS, Service Manual

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