Sharp 32LF-94EC Service Manual page 34

SYMBOL
CVBS2
VAUDO
VAUDS
CVBS/Y3
C3
GND_VSW
BGDEC
CVBS/Y4
C4
fuse
GND_FILT
CVBS_DTV
RREF
VCC_FILT
YCOMB
CCOMB
AMEXT
TESTPIN3
CVBSOUTA
VDEFLO
VDEFLS
CVBSOUTB
fuse
TESTPIN2
R1/PR1 /V1
G1/Y1/Y1
B1/PB1 /U1
VCC_RGB
GND_RGB
R2/PR2 /V2
G2/Y2/Y2
B2/PB2 /U2
fuse
GND_VADC
VCC_VADC
EWVIN
EWIOUT
REW
ADR
XREF
fuse
IRQ
SDA
SCL
HV_SEC
HV_PRIM
VD2V5
GND_DIG
VCC_DIG
STROBE3N
STROBE3P
DATA3N
DATA3P
fuse
STROBE2N
STROBE2P
DATA2N
AK53 D.O.C. Service Manual
PIN DESCRIPTION
1 CVBS2 input
2 DC output voltage for supply of audio DACs in digital decoder
3 sense voltage for audio DACs supply
4 external CVBS/Y3 input
5 external CHROMA3 input
6 ground video switch
7 bandgap decoupling
8 external CVBS/Y3 input
9 external CHROMA3 input
fused lead
10
ground filters
11
input for CVBS encoded signal from DTV decoder
12
reference current input
13
supply voltage filters (5V)
14
Y signal from 3D Comb filter
15
16 C signal from 3D Comb filter
external AM mono input
17
test pin 3 (leave open)
18
CVBS or Y+CHROMA output A
19
DC output voltage for supply of deflection DACs in digital decoder
20
sense voltage for deflection DACs supply
21
CVBS or Y+CHROMA output B
22
fused lead
23
test pin 2 (connect to ground)
24
25 R1/PR1 /V1 input
26 G1/Y1/Y1 input
27 B1/PB1 /U1 input
28 supply voltage RGB matrix (5V)
ground RGB matrix
29
R2/PR2 /V2 input
30
G2/Y2/Y2 input
31
B2/PB2 /U2 input
32
fused lead
33
ground video ADCs
34
supply voltage video ADCs (5V)
35
East-West input voltage
36
East-West output current
37
East-West voltage to current conversion resistor
38
2
I C address selection
39
XTAL reference frequency input
40
fused lead
41
interrupt request output
42
2
I C serial data input/output
43
2
I C serial clock input
44
horizontal and vertical sync input for secondary video channel
45
horizontal and vertical sync input for primary video channel
46
decoupling of internal digital supply voltage
47
digital ground
48
digital supply voltage (5V)
49
strobex negative datalink3
50
strobex positive datalink3
51
data positive datalink3
52
data positive datalink3
53
fused lead
54
55 strobex negative datalink2
56 strobex positive datalink2
57 data positive datalink2
10
22/03/2004