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What is AV-21BX16L?

This electronic component, produced by the manufacturer "JVC", performs the same function as "FLAT COLOUR TELEVISION SERVICE MANUAL".


AV-21BX16L Datasheet PDF - JVC

Part Number AV-21BX16L
Description FLAT COLOUR TELEVISION SERVICE MANUAL
Manufacturers JVC 
Logo JVC Logo 


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Total 30 Pages



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No Preview Available ! AV-21BX16L datasheet, circuit

SERVICE MANUAL
FLAT COLOUR TELEVISION
AV-21BX16Y290A04665
/L
BASIC CHASSIS
CW3
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
COPYRIGHT © 2006 Victor Company of Japan, Limited
No.YA465
2006/9

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AV-21BX16L equivalent
2.2 TECHNINAL INFORMATION
2.2.1 MAIN MI-COM (CPU) PIN FUNCTION
Pin
No.
Pin 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 R3
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
I/O
Function
Pin
No.
Pin name
- GND
65 SVM
- GND
66 FbiSo
I 1.8V (Digital)
67 Hout
I 3.3V
68 VssComb
I 3.3V (Positive)
69 V5Comb
- GND
70 Vin/R2/Pr
I 3.3V (Negative)
71 Uin/B2/Pb
- GND
72 Yin/G2/Y
I 3.3V (Positive)
73 Ysync
I 24.576MHz for system clock
74 Yout
O 24.576MHz for system clock
75 Uout/INSSW2
- GND
76 NC
I V-guard input/ I/O switch
77 INSSW3
I 1.8V regulator control
78 R3/Pr
I +5V
79 G3/Y
- Phase-2 filter
80 B3/Pb
- Phase-1 filter
81 Gnd3
- GND
82 V5P3
- SECAM PLL decoupling
83 BCL
- Bandgap decoupling
84 BLKIN
O East-West drive output
85 Rout
O Vertical drive B output
86 Gout
O Vertical drive A output
87 Bout
I Video IF input 1
88 V3.3A1
I Video IF input 2
89 RefAdN
- Vertical sawtooth capacitor
90 V3.3RefAdP
I Reference current input
91 RefAd
- GND
92 GndA
I Sound IF input 1
93 V1.8A
I Sound IF input 2
94 V3.3A2
O Tuner AGC output
95 VssADC
I EHT/overvoltage protection input
96 V1.8ADC
O Automatic Volume Levelling/ sound IF input / subcar- 97 REMOTE
rier reference output / external reference signal input
for I signalmixer for DVB operation
I Audio-L3 input (left signal)
98 PW_LED
I Audio-R3 input (right signal)
99 PW_LED
O Audio L output
100 V1.8C2
O Audio R output
101 VssC2
- Decoupling sound demodulator
102 TIMER
O QSS intercarrier output / AM output / deemphasis / 103 TIMER
(front-end audio out)
- GND
104 VER_PROTECT
- IF-PLL loop filter
105 S_REDUCE
- AGC sound IF
106 P00/I2SDI1
O Not used
107 POWER
O Not used
108 SCL1
I 8V
109 SDA1
- AGC capacitor second sound IF
110 V3.3P
I 5V
111 ROTATION
O Video output
112 3.58/OTHER
I Audio-L1 input
113 A_MUTE
I Audio-R1 input
114 4.5/OTHER
I Video V3 input
115 PROT
I Not used
116 ECO_IN
I Not used
117 V1.8C1
I Not used
118 DecV1V8
I Video V2 input
119 KEY_IN
I Audio L2 input (Left signal)
120 VDO-DET
I Audio R2 input (right signal)
121 VSSC1+P1
I S-Video Y1 input
122 S_V_DET
I S-Video C1 input
123 P25/PWM4
O Audio L output for audio power amplifier
124 V1.8C3
O Audio R output for audio power amplifier
125 VssC3
O Not used
126 P12/Int2
O Not used
127 SDA0
O CVBS / PIP output
128 SCL0
I/O Function
O Not used
I Flyback input/sandcastle output
O Horizontal output
- GND
I 5V
I PIP R input
I PIP B input
I PIP G input
I Not used
O Not used
I YUV insertion input
O Not used
I YUV insertion input
I Component PR input (Video-2)
I Component Y input (Video-2)
I Component PB input (Video-2)
- GND
I 5V
I Beam current limiter input
I Black current input
O R output
O G output
O B output
I 3.3V
- GND
I 3.3V (Positive)
I 3.3/2V
- GND
I 1.8V
I 3.3V
- GND
I 1.8V
I Remote control
I POWER LED control
I POWER LED control
I 1.8V
- GND
- Not used
- Not used
O X-ray protect
O Sound control
O Not used
O SUB POWER control
I I2C bus clock
I/O I2C bus data
I 3.3V
O Rotation
O NTSC 3.58 detection
O Audio muting
O NTSC 4.43 detection
I Protect
I ECO sensor level detection
I 1.8V (Digital)
I 1.8V
I Key scan data
I Video DET input
- Digital GND
I S-Video DET input
O GTVA_reset
I 1.8V (Digital)
- GND
I External interrupt
I/O I2C bus data (for memory)
I I2C bus clock (for memory)
(No.YA465)1-5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AV-21BX16L electronic component.


Information Total 30 Pages
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