JVC KD-S790 Service Manual page 34

KD-S790
QQ
4.6 TA2157FN-X(IC501):RF amp 3 7 63 1515 0
• Terminal layout
24
1
• Block diagram
TE
L 13942296513
PIN
VCTRLPIN
VCC
www
HiZ
GND
1-34 (No.49788)
http://www.xiaoyu163.com
~ 13
~ 12
13
20k 20k
14
15
15k
16
50 A
20k
12k
17
12k
20k
BOTTOM
18
PEAK
19
20
20k
21
22
23
3k
3k
24
SEL
(APC SW)
APC ON
APC ON
x ao
y
APC OFF
(LDO=H)
. i
http://www.xiaoyu163.com
8
PEAK
50k
40k
20k
20k
20k
2k
50k
14k
Q Q
3 6 7 1 3
240k
15pF
240k
15pF
60k
60k
180k
40pF
TEB RFGC
(TE BAL) (AGC Gian)
-50% +12dB
0% +6dB
u163
50% 0dB
.
2 9 9 4
12
15k
11
10
9
8
1k
7
2k
1 5 0 5 8 2 9
6
1.75k
x0.5
K
5
x2
x0.5
1 4
x2
94k
3
22k
94k
2
22k
1
TEB
(TE BAL)
Normal mode
(0dB)
m
Normal mode
(0dB)
co
CD-RW mode
(+12dB)
2 8
9 9
9 4 2 8 9 9