JVC AV-28KT1BUF, Service Manual

Page: 4 / 24

1-4 (No.52137)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 21-pin Euro connector (SCART) : EXT-1 / EXT-2
(P-P= Peak to Peak, B-W= Blanking to white peak)
Pin No. Signal Designation Matching Value EXT-1 EXT-2
1 AUDIO R output 500mV(rms) (Nominal), Low impedance Used Used
2 AUDIO R input 500mV(rms) (Nominal), High impedance Used (R1) Used (R2)
3 AUDIO L output 500mV(rms) (Nominal), Low impedance Used Used
4 AUDIO GND --- Used Used
5 GND (B) --- Used Used
6 AUDIO L input 500mV(rms) (Nominal), High impedance Used (L1) Used (L2)
7 B input 700mV(B-W), 75
Ω
Used Used
8 FUNCTION SW
(SLOW SW) Low : 0V-3V, High : 8V-12V,
High impedance Used Used
9 GND (G) --- Used Used
10 SCL / T-V LINK --- Not used Used (SCL / TV-LINK)
11 G input 700mV(B-W), 75
Ω
Used Used
12 SDA3 --- Not used Not used
13 GND (R) --- Used Used
14 GND (YS) --- Used Used
15 R / C input R : 700mV(B-W), 75
Ω
C : 300mV
(P-P)
, 75
Ω
Used (R) Used (C2/R)
16 Ys input
(FAST SW) Low : 0V-0.4V, 75
Ω
High : 1V-3V, 75
Ω
Used Used
17 GND (VIDEO output) --- Used Used
18 GND (VIDEO input) --- Used Used
19 VIDEO output 1V
(P-P)
(Negative sync), 75
Ω
Used Used
20 VIDEO / Y input 1V
(P-P)
(Negative sync), 75
Ω
Used Used
21 COMMON GND --- 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]