JVC AV-28T5BK, Service Manual

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(No.YA261)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 FEATURES
ZOOM
This function can change the screen size according to the
picture aspect ratio.
T-V LINK
When you have a T-V LINK compatible VCR connected to the
EXT-2 Terminal on the TV,it is easier to set up the VCR and to
view videos.
PICTURE MODE
This function can adjust the picture settings automatically.
HYPER SOUND
You can enjoy sounds with a wider ambience.
2.2 MAIN DIFFERENCE LIST
2.3 21-PIN EURO CONNECTOR (SCART) : EXT-1/EXT-2/EXT-3
(P-P= Peak to Peak, B-W= Blanking to white peak)
Item AV-28T5SP AV-28T5SK AV-28T5SR AV-28T5BR AV-28T5BK
CABINET COLOUR Silver
← ←
Black
←
POWER CORD EU 2-pin type UK 3-pin type
← ← ←
TELETEXT FLOF, WST, TOP FLOF, WST
← ← ←
PICTURE & TEXT YES NO NO NO NO
STAND ASSY NO YES
← ← ←
REMOTE CONTROL UNIT RM-C1502
← ←
RM-C1502B
←
MAIN PWB SJW-1012A-U2 SJW-1912A-U2 SJW-1012A-U2
←
SJW-1912A-U2
Pin No. Signal designation Matching value EXT-1 EXT-2 EXT-3
1 AUDIO R output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT) Not used
2 AUDIO R input 500mV(rms) (Nominal), High impedance Used (R1) Used (R2) Used (R3)
3 AUDIO L output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT) Not used
4 AUDIO GND Used Used Used
5 GND (B) Used Used Used
6 AUDIO L input 500mV(rms) (Nominal), High impedance Used (L1) Used (L2) Used (L3)
7 B input 700mV
(B-W)
, 75
Ω
Used Used Not used
8
FUNCTION SW
(SLOW SW)
Low : 0V-3V
High : 8V-12V, High impedance
Used Used Used
9 GND (G) Used Used Used
10 SCL / T-V LINK Not used
Used
(SCL2 / TV-LINK)
Not used
11 G input 700mV
(B-W)
, 75
Ω
Used Used Not used
12 SDA Not used Used (SDA2) Not used
13 GND (R) Used Used Used
14 GND (YS) Used Not used Not used
15 R / C input
R : 700mV
(B-W)
, 75
Ω
C : 300mV
(P-P)
, 75
Ω
Used (R) Used (C2/R) Used (C3)
16 Ys input (FAST SW) Low : 0V-0.4V, High : 1V-3V, 75
Ω
Used Used Not used
17 GND (VIDEO output) Used Used Used
18 GND (VIDEO input) Used Used Used
19 VIDEO output 1V
(P-P)
(Negative sync), 75
Ω
Used (TV OUT) Used (LINE OUT) Not used
20 VIDEO / Y input 1V
(P-P)
(Negative sync), 75
Ω
Used Used Used
21 COMMON GND Used Used Used
20 18 16 14 12 10 8 6 4 2
21 19 17 15 13 11 9 7 5 3 1
[Pin assignment]