Specific Service Instructions - JVC AV-2100QE Service Manual

2.1 FEATURES
PICTURE MODE
This function can adjust the picture settings automatically.
There are USER, VIVID and SOFT in the PICTURE MODE.
RETURN +
This function can set a channel you frequently view to the
Return Channel and you can view that channel at any time with
one-touch.
2.2 MAIN DIFFERENCE LIST
Item AV-2100QE
Language Eng, Rus, Ukr
Power voltage AC160-240V
Cabinet colour Silver
Main PWB SCQ-1403A-H2
2.3 TECHNINAL INFORMATION
2.3.1 MAIN MI-COM (CPU) PIN FUNCTION
Pin
Pin name
No.
1 NC
2 NC
3 KEY
4 GND
5 RESET
6 X-TAL
7 X-TAL
8 TEST
9 5V
10 GND
11 GND
12 FBP
13 H-OUT
14 H-AFC
15 V-SAM
16 V-OUT
17 A_VCC 8V
18 GND
19 Cb
20 Y-IN
21 Cr
22 EXT AUDIO 1
23 V3
24 V2
25 ALC FILTER
26 TV-INC(Vp-p)
27 ABCL-IN
28 AUDIO-OUT1
29 AUDIO-OUT2
30 TV-OUT
31 SIF-OUT/AUD MON OUT 2
32 EXT AUDIO 2
1-4 (No.YA552)

SPECIFIC SERVICE INSTRUCTIONS

AV-21Q17
Eng, Chi, Rus, Mal, Ind
AC110-240V
←
SCQ-1402A-H2 SCQ-1407A-H2
I/O Function
- Not used
- Not used
I Key scan for front key
- GND for Power supply
I Reset
O System clock oscillation
I System clock oscillation
- Not used
I Vdd (5V supply)
- GND for Slice circuit
- GND for Def block
I FBP
O Horizontal driving pulse
I Connected capacitor for H. AFC filter
- Not used
O Vertical driving pulse
I Vcc (8V supply) Def,RGB,Audio out and PIF
- GND for TV block
- Not used
- Not used
- Not used
I Audio signal 1
I Video signal
I Video signal
- Not used
I Video signal (input level = 1Vp-p)
I ABL control
O Audio signal
- Not used
O Video (Detected PIF signal)
O Audio (Detected SIF signal)
I Audio signal 2
SECTION 2
CHILD LOCK
Use this function to prevent children from operating the TV
without parental consent.
VNR
This function can reduce the picture noise.
AV-21Q17/L AV-21QMG7/G
←
Eng, Ara, Per, Fre, Rus
AC160-240V AC110-240V
← ←
SCQ-1401A-H2
Pin
Pin name
No.
33 SIF-IN
34 DC NF
35 PIF PLL
36 IF-VCC(5V)
37 S-Reg
38 AUD MON 1
39 IF AGC
40 IF GND
41 SAW
42 SAW
43 RE AGC
44 BLACK DET
45 MONITOR-OUT
46 APC FIL
47 5V
48 SYNC-OUT
49 VCC 3.3V
50 R-OUT
51 G-OUT
52 B-OUT
53 GND
54 GND
55 5V
56 POWER ON/OFF
57 SADA 1
58 SCL 1
59 PROTECT
60 3.58/OTH
61 A-MUTE
62 NC
63 REMOT
64 POWER LED
AV-21QMG7/S AV-21QMG7B/G
← ←
← ←
←
Black
SCQ-1408A-H2 SCQ-1401A-H2
I/O Function
I SIF signal
- Not used
- Not used
I Vcc (5V supply) IF circuit
- Not used
O Audio signal for output terminal
- Not used
- GND for IF circuit
I IF signal
I IF signal
O RF AGC control level
- Not used
O Video signal for output terminal
- Not used
I Vcc (5V supply) Y/C circuit
- Not used
- Vcc for Digital block
O Red signal
O Green signal
O Blue signal
- GND for digital block
- GND for Oscillation circuit
- Vdd (5V supply) for Oscillation circuit
O Main power control (Hi:Power ON Low:Off)
2
I/O I C bus serial data In/Out
2
I I C bus serial clock
I B1 voltage detection (Hi:OK Low:NG)
O NTSC 3.58 detection (Hi:Detect)
I Audio muting (Hi:Mute)
- Not used
I Remote control
O Lighting for power LED (Hi:Off Low:ON )