Cpu Port Functions - Sanyo CE29FS2 Service Manual

CPU Port Functions

Pin No. Function Name
1 VSSP2
2 VSSC4
3 VDDC4
4 VDDA3(3.3V)
5 VREF_POS_LSL
6 VREF_NEG_LSL+HPL
7 VREF_POS_LSR+HPR Positive reference voltage SDAC (3.3 V)
8 VREF_NEG_HPL+HPR Negative reference voltage SDAC (0 V)
9 VREF_POS_HPR
10 XTALIN
11 XTALOUT
12 VSSA1
13 VGUARD/SWIO
14 DECDIG
15 VP1
16 PH2LF
17 PH1LF
18 GND1
19 SECPLL
20 DECBG
21 EWD/AVL (1)
22 VDRB
23 VDRA
24 VIFIN1
25 VIFIN2
26 VSC
27 IREF
28 GNDIF
29 SIFIN1/DVBIN1 (2)
30 SIFIN2/DVBIN2 (2)
31 AGCOUT
32 EHTO
33 AVL/SWO/SSIF/
(2)(3)
REFO/REFIN
34 AUDIOIN5L
35 AUDIOIN5R
36 AUDOUTSL
37 AUDOUTSR
38 DECSDEM
39 QSSO/AMOUT
/AUDEEM
(2)
40 GND2
41 PLLIF
42 SIFAGC/DVBAGC
(2)
Function
Ground
Ground
Digital supply to SDACs (1.8V)
Supply (3.3V)
Positive reference voltage SDAC (3.3V)
Negative reference voltage SDAC (0 V)
Positive reference voltage SDAC (3.3V)
Crystal oscillator input
Crystal oscillator output
Ground
V-guard input / I/O switch
Decoupling digital supply
1st supply voltage TV-processor (+5 V)
Phase-2 filter
Phase-1 filter
Ground 1 for TV-processor
SECAM PLL decoupling
Bandgap decoupling
East-West drive output or AVL capacitor
Vertical drive B output
Vertical drive A output
IF Input 1
IF Input 2
Vertical sawtooth capacitor
Reference current input
Ground connection for IF amplifier
SIF input 1 / DVB input 1
SIF input 2 / DVB input 2
Tuner AGC output
EHT/overvoltage protection input
Automatic Volume Levelling / swith
output / sound IF input / subcarier
reference output / external reference
signal input for I signal mixer for
DVB operation
Audio-5 input (left signal)
Audio-5 input (right signal)
Audio output for SCART/CINCH (left signal)
Audio output for SCART/CINCH (right signal)
Decoupling sound demodulator
QSS intercarrier output / AM output
/ deemphasis (front-end audio out)
Ground 2 for TV processor
IF-PLL loop filter
AGC sound IF / internal-external
AGC for DVB applications
Pin No. Function Name
43 DVBO/IFVO/FMRO
44 DVBO/FMRO (2)
45 VCC8V
46 AGC2SIF
47 VP2
48 IFVO/SVO/CVBSI
49 AUDIOIN4L
50 AUDIOIN4R
51 CVBS4/Y4
52 C4
53 AUDIOIN2L/SSIF
54 AUDIOIN2R
55 CVBS2/Y2
56 AUDIOIN3L
57 AUDIOIN3R
58 CVBS3/Y3
59 C2/C3
60 AUDOUTLSL
61 AUDOUTLSR
62 AUDOUTHPL
63 AUDOUTHPR
64 CVBSO/PIP
65 SVM
66 FBISO/CSY
67 HOUT
68 VSScomb
69 VDDcomb
70 VIN (R/P IN2/CX)
R
71 UIN (B/PBIN2)
72 YIN (G/YIN2/CVBS-Yx) Y-input for YUV interface (2
73 YSYNC
74 YOUT
75 UOUT (INSSW2)
76 VOUT (SW01)
77 INSSW3
78 R/P IN3
R
-7-
Function
(2) Digital Video Broadcast output / IF
video output / FM radio output
Digital Video Broadcast output / FM
radio output
8 Volt supply for audio switches
AGC capacitor second sound IF
2 supply voltage TV processor (+5 V)
nd
(2) IF video output / selected CVBS
output / CVBS input
Audio-4 input (left signal)
Audio-4 input (right signal)
CVBS2/Y4 input
Chroma-4 input
Audio 2 input (left signal) / sound IF
(3)
input
Audio 2 input (right signal)
CVBS2/Y2 input
Audio 3 input (left signal)
Audio 3 input (right signal)
CVBS3/Y3 input
Chroma-2/3 input
Audio output for audio power ampli-
fier (left signal)
Audio output for audio power ampli-
fier (left signal)
Audio output for headphone channel
(left signal)
Audio output for headphone channel
(Right signal)
CVBS / PIP output
Scan velocity modulation output
Flyback input/sandcastle output or
composite H/V timing output
Horizontal output
Ground connection for comb filter
Supply voltage for comb filter (5V)
V-input for YUV interface (2 R
nd
input / PR input or C x input)
U-input for YUV interface (2 nd B
input / PB input)
G
nd
input / Y input or CVBS/Yx input)
Y-input for sync separator
Y-output (for YUV interface)
U-output for YUV interface (2 nd
RGB / YP P insertation input)
B R
V-output for YUV interface (general
purpose switch output)
3 rd RGB / YP P insertion input
B R
3 R input / P input
rd
R