Wiring Diagram; Block View Inside Ic - JVC HA-W500RF Service Manual

5.Wiring Diagram

Antenna
Black
lead
Inside of the
head band
ass'y
Speaker
(Rch)

6.Block View Inside IC

PLL LPF1 1
PILOT DET LPF2 2
PILOT DET LPF2 3
ST IND/VCO CHECK 4
Rch OUT 5
Lch OUT 6
Vcc 7
RIPPLE FILTER 8
AGC AFC 1 9
AGC AFC 2 10
GND 11
TUNE IND 12
FM IF IN 13
AM IF IN 14
BAND SELECT 15
RX:IC2
CXA1538M
Inside of the housing (R)
Red lead
Blue lead
Green shielded lead
Natural shielded lead
30 GND
29 PLL LPF2
28 MPX REG
27 VCO
26 FM DISCRI
25 MUTE
24 AM OSC
23 AFC
22 FM OSC
21 REG
20 FM RF
19 AM RF IN
18 FM RF IN
17 FE GND
16 FM/AM FE OUT
Natural shielded lead
Red shielded lead
Inside of the
head band ass'y
Output 1 1
Input 1 2
Bypass
3
GND 4
RX:IC3
LM4809
Output 1 1
-Input 1 2
+Input 1 3
GND 4
RX:IC4
NJM2903M
LM393
HA-W500RF (EG)/(EK)
Inside of the housing (L)
Red lead
Black lead
Green
shielded lead
Speaker
(Lch)
Natural shielded lead
Vcc
8
Output 2
7
6 Input 2
5 Shutdown
8 Vcc
Output 2
7
6 -Input 2
5 +Input 2
(No.70270) 7
Ni-Cd
Battery