Functions - JVC AV-29WX14/G Service Manual

IC701 Pin Function List (1/2)
Pin no. Terminal name
1 VssP2
2 VssC4
3 V1.8C4
4 V3.3A3
5 VrefP_Sdac
6 VrefN_Sdac
7 VrefP_Sdac
8 VrefN_Sdac
9 VrefP_Sdac
10 XtalIn
11 XtalOut
12 VssA1
13 NECK
14 CONT
15 V5P1
16 Ph2
17 Ph1
18 Gnd1
19 SecPll
20 Dec8G
21 EW
22 VDRB-
23 VDRA+
24 Vif1
25 Vif2
26 Vsc
27 Iref
28 GndIF
29 Sif1
30 Sif2
31 AGC
32 EHT
33 Ssif/RefIn/Avl/RefOut
34 L3
35 R5
36 L_OUT
37 R_OUT
38 DecsDem
39 QssO/AmO/AudeEm
40 Gnd2
41 PllIf
42 SifAgc
43 IfVo/FmRo/DvbO
44 NC
45 V8AudioSwitches
46 AgcSsif
47 V5P2
48 V_OUT
49 L1
50 R1
51 V3
52 C4
53 Audio2InL
54 Audio2InR
55 V2/Y
56 L2
57 R2
58 Y3/Cvbs
59 C1
60 AudioLsL
61 AudioLsR
62 HP_L
63 HP_R
64 CVBSO/PIP
1-6 (No. YA104)
Port name
VSSP2
VSSC4
VDDC4
VDDA3(3.3V)
VREF_POS_LSL
VREF_NEG_LSL+HPL
VREF_POS_LSR+HPR
VREF_NEG_HPL+HPR
VREF_POS_HPR
XTALIN
XTALOUT
VSSA1
VGUARD/SWIO
DECDIG
VP1
PH2LF
PH1LF
GND1
SECPLL
DECBG
EWD/AVL
VDRB
VDRA
VIFIN1
VIFIN2
VSC
IREF
GNDIF
SIFIN1/DVBIN1
SIFIN2/DVBIN2
AGCOUT
EHTO
AVL/SWO/SSIF/REFO/REFIN
AUDIOIN5L
AUDIOIN5R
AUDOUTSL
AUDOUTSR
DECSDEM
QSSO/AMOUT/AUDEEM
GND2
PLLIF
SIFAGC/DVBAGC
DVBO/IFVO/FMRO
DVBO/FMRO
VCC8V
AGC2SIF
VP2
IFVO/SVO/CVBSI
AUDIOIN4L
AUDIOIN4R
CVBS4/Y4
C4
AUDIOIN2L
AUDIOIN2R
CVBS2/Y2
AUDIOIN3L
AUDIOIN3R
CVBS3/Y3
C2/C3
AUDOUTLSL
AUDOUTLSR
AUDOUTHPL
AUDOUTHPR
CVBSO/PIP
I/O Remark
- GND
- GND
I 1.8V (Digital)
I 3.3V
I 3.3V (Positive)
- GND
I 3.3V (Negative)
- GND
I 3.3V (Positive)
I Crystal oscillator input (24.576 MHz)
O Crystal oscillator input (24.576 MHz)
- GND
I V-guard input/ I/O switch
I Decoupling digital supply
I +5V
- Phase-2 filter
- Phase-1 filter
- GND
- SECAM PLL decoupling
- Bandgap decoupling
O East-West drive output or AVL capacitor
O Vertical drive B output
O Vertical drive A output
I IF input 1
I IF input 2
- Vertical sawtooth capacitor
I Reference current input
- GND
I SIF input 1
I SIF input 2
O Tuner AGC output
I EHT/overvoltage protection input
O Automatic Volume Levelling/ sound IF input / subcarrier
reference output / external reference signal input for I
signal mixer for DVB operation
I Audio-L3 input (left signal)
I Audio-R3 input (right signal)
O Audio L output
O Audio R output
- Decoupling sound demodulator
O QSS intercarrier output / AM output / deemphasis / (front-
end audio out)
- GND
- IF-PLL loop filter
- AGC sound IF
O Not used
O Not used
I 8V
- AGC capacitor second sound IF
I 5V
O Video output
I Audio-L1 input
I Audio-R1 input
I Video V3
I Not used
I Not used
I Not used
I Component Y/Video V2
I Audio L2 input (Left signal)
I Audio R2 input (right signal)
I S-Video Y1
I S-Video C1
O Audio L output for audio power amplifier
O Audio R output for audio power amplifier
O Headphone L
O Headphone R
O CVBS / PIP output