Sharp 21HM-10F Panduan Servis - Halaman 14

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ICs ADITIONAL INFORMATION:TDA9381 (IC801)
PINNING
SYMBOL
PIN
P1.3/T1
P1.6/SCL
P1.7/SDA
P2.0/TPWM
P3.0/ADC0/PWM0
P3.1/ADC1/PWM1
P3.2/ADC2/PWM2
P3.3/ADC3/PWM3
VSSC/P
P0.5
10
P0.6
11
VSSA
12
SECPLL
13
VP2
14
DECDIG
15
PH2LF
16
PH1LF
17
GND3
18
DECBG
19
(1)
AVL/EWD
20
VDRB
21
VDRA
22
IFIN1
23
IFIN2
24
IREF
25
VSC
26
TUNERAGC
27
(1)
AUDEEM/SIFIN1
28
(1)
DECSDEM/SIFIN2
29
GND2
30
(1)
SNDPLL/SIFAGC
31
AVL/SNDIF/REF0/
32
(1)
AMOUT
HOUT
33
FBISO
34
AUDEXT/
35
(1)
QSSO/AMOUT
EHTO
36
PLLIF
37
IFVO/SVO
38
VP1
39
CVBSINT
40
GND1
41
CVBS/Y
42
CHROMA
43
(1)
AUDOUT /AMOUT
44
1
port 1.3 or Counter/Timer 1 input
2
2
port 1.6 or I
C-bus clock line
2
3
port 1.7 or I
C-bus data line
4
port 2.0 or Tuning PWM output
5
port 3.0 or ADC0 input or PWM0 output
6
port 3.1 or ADC1 input or PWM1 output
7
port 3.2 or ADC2 input or PWM2 output
8
port 3.3 or ADC3 input or PWM3 output
digital ground for µ-Controller core and periphery
9
port 0.5 (8 mA current sinking capability for direct drive of LEDs)
port 0.6 (8 mA current sinking capability for direct drive of LEDs)
analog ground of Teletext decoder and digital ground of TV-processor
SECAM PLL decoupling
nd
2
supply voltage TV-processor (+8V)
decoupling digital supply of TV-processor
phase-2 filter
phase-1 filter
ground 3 for TV-processor
bandgap decoupling
Automatic Volume Levelling /East-West drive output
vertical drive B output
vertical drive A output
IF input 1
IF input 2
reference current input
vertical sawtooth capacitor
tuner AGC output
audio deemphasis or SIF input 1
decoupling sound demodulator or SIF input 2
ground 2 for TV processor
narrow band PLL filter /AGC sound IF
Automatic Volume Levelling / sound IF input / subcarrier reference output /AM output
(non controlled)
horizontal output
flyback input/sandcastle output
external audio input /QSS intercarrier out /AM audio output (non controlled)
EHT/overvoltage protection input
IF-PLL loop filter
IF video output / selected CVBS output
main supply voltage TV-processor (+8 V)
internal CVBS input
ground 1 for TV-processor
external CVBS/Y input
chrominance input (SVHS)
audio output /AM audio output (volume controlled)
DESCRIPTION
21
21HM-10F