22
21HT-15C
21HT-16C
TDA9351(IC801)
PINNING
SYMBOL
PIN
DESCRIPTION
P1.3/T1
1
port 1.3 or Counter/Timer 1 input
P1.6/SCL
2
port 1.6 or I
2
C-bus clock line
P1.7/SDA
3
port 1.7 or I
2
C-bus data line
P2.0/TPWM
4
port 2.0 or Tuning PWM output
P3.0/ADC0
5
port 3.0 or ADC0 input
P3.1/ADC1
6
port 3.1 or ADC1 input
P3.2/ADC2
7
port 3.2 or ADC2 input
P3.3/ADC3
8
port 3.3 or ADC3 input
VSSC/P
9
digital ground for
µ
-Controller core and periphery
P0.5
10
port 0.5 (8 mA current sinking capability for direct drive of LEDs)
P0.6
11
port 0.6 (8 mA current sinking capability for direct drive of LEDs)
VSSA
12
analog ground of Teletext decoder and digital ground of TV-processor
SECPLL
13
SECAM PLL decoupling
VP2
14
2
nd
supply voltage TV-processor (+8V)
DECDIG
15
decoupling digital supply of TV-processor
PH2LF
16
phase-2 filter
PH1LF
17
phase-1 filter
GND3
18
ground 3 for TV-processor
DECBG
19
bandgap decoupling
AVL/EWD
(1)
20
Automatic Volume Levelling /East-West drive output
VDRB
21
vertical drive B output
VDRA
22
vertical drive A output
IFIN1
23
IF input 1
IFIN2
24
IF input 2
IREF
25
reference current input
VSC
26
vertical sawtooth capacitor
TUNERAGC
27
tuner AGC output
AUDEEM/SIFIN1
(1)
28
audio deemphasis or SIF input 1
DECSDEM/SIFIN2
(1)
29
decoupling sound demodulator or SIF input 2
GND2
30
ground 2 for TV processor
SNDPLL/SIFAGC
(1)
31
narrow band PLL filter /AGC sound IF
AVL/SNDIF/REF0/
AMOUT
(1)
32
Automatic Volume Levelling / sound IF input / subcarrier reference output /AM output
(non controlled)
HOUT
33
horizontal output
FBISO
34
flyback input/sandcastle output
AUDEXT/
QSSO/AMOUT
(1)
35
external audio input /QSS intercarrier out /AM audio output (non controlled)
EHTO
36
EHT/overvoltage protection input
PLLIF
37
IF-PLL loop filter
IFVO/SVO
38
IF video output / selected CVBS output
VP1
39
main supply voltage TV-processor (+8 V)
CVBSINT
40
internal CVBS input
GND1
41
ground 1 for TV-processor
CVBS/Y
42
external CVBS/Y input
CHROMA
43
chrominance input (SVHS)
AUDOUT /AMOUT
(1)
44
audio output /AM audio output (volume controlled)
Summary of Contents for 21HT-15CS
Page 14: ...14 21HT 15C 21HT 16C CHASSIS LAYOUTS Mother unit CRT unit 21HS50F 21HS50C 21HS50C ...
Page 27: ...21HT 15C 21HT 16C 27 ...
Page 32: ...32 21HT 15C 21HT 16C 1 I H G F E D C B A 2 3 4 5 6 7 Page 33 BLOCK DIAGRAMS Mother Unit ...
Page 33: ...21HT 15C 21HT 16C 33 8 9 10 11 12 13 14 I H G F E D C B A Page 32 Mother Unit ...
Page 34: ...34 21HT 15C 21HT 16C CRT Unit 1 I H G F E D C B A 2 3 4 5 6 7 ...
