Specific Service Instructions - JVC AV-2106BE, AV-21B16/L, AV-21BMG6B Service Manual

2.1 FEATURES
PICTURE MODE
This function can adjust the picture settings automatically.
There are BRIGHT, STANDARD 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
OSD Language
MAIN PWB SCG-1549A-H2
TV RF System
2.3 TECHNINAL INFORMATION
2.3.1 MAIN MI-COM (CPU) PIN FUNCTION
Pin
Pin name I/O
No.
1 REMOCON I Remote control
2 SDA2 I/O Data for Inter IC control (For main memory)
3 SCL2 O Clock for Inter IC contorl (For main memory)
4 BUS_FREE - Not used
5 NC - Not used
6 KEY1 I Key scan for front key (Menu CH -/+)
7 KEY2 I Key scan for front key (Vol -/+)
8 ECO IN - Not used
9 AFT I AFT voltage for tuner
10 LED[POW] - Not used
11 LED[TIM] O Liting for timer [Liting : H]
12 GND - GND
13 NC - Not used
14 NC - Not used
15 TV/V - Not used
16 TEXT RESET - Not used
17 ACL ON/OFF - Not used
18 VOL O Volume control
19 A_MUTE O Aodio muting [Muting : H]
20 NC - Not used
21 TEXT/OTH - Not used
1-4 (No.YA416)

SPECIFIC SERVICE INSTRUCTIONS

AV-2106BE
Eng, Rus, Ukr Chi Malay Ind
SCG-1547A-H2
B/G, I, D/K
Function
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-21B16/L AV-21BMG6B/G
Eng, Ara, Per, Rus
SCG-1548A-H2
←
B/G, I, D/K, M
Pin
Pin name
No.
22 PROTECT
23 P_ON/OFF
24 LOCK
25 3.58/OTH
26 4.5/OTH
27 H_SYNC
28 I/II
29 OSD_Ys
30 OSD_B
31 OSD_G
32 OSD_R
33 NC
34 RST
35 V_SYNC
36 TCLOCK
37 SDA1
38 SCL1
39 VDD
40 OSC1
41 OSC2
42 VSS
AV-21BMG6/G
I/O Function
I Low B protect detection [Detect: H]
I Main power control [ON : H]
- Not used
- Not used
- Not used
I Horizontal sync
- Not used
O Ys (blanking) for OSD
O Blue for OSD
O Green for OSD
O Red for OSD
- Not used
I CPU reset [Reset:L]
I Vertical sync
- Not used
I/O Data for Inter IC control (For generally)
O Clock for Inter IC contorl (For generally)
I 3.3V
I System clock oscillation (4MHz)
O System clock oscillation (4MHz)
- GND
←
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