30
30
HCD-RG55/RG55S
6-6. SCHEMATIC DIAGRAM — MAIN SECTION (1/4) — • Refer to page 44 for IC Block Diagrams.
(Page 31)
(Page 32)
• Waveforms
1
4.5MHz
IC102
ws
(XOUT)
3Vp-p
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
14
EXCEPT
AEP,UK
MODEL
AEP,UK
MODEL
AEP,UK
MODEL
AEP,UK
MODEL
AEP,UK MODEL
AEP,UK MODEL
AEP,UK MODEL
AEP,UK MODEL
*
*
*
*
EXCEPT AEP,UK MODEL
AEP,UK MODEL
AEP,UK MODEL
AEP,UK MODEL
AEP,UK MODEL
* *
*
*
*
*
*
*
*
(EXCEPT AEP,UK MODEL)
(AEP,UK MODEL)
(EXCEPT AEP,UK MODEL)
(EXCEPT AEP,UK MODEL)
(AEP,UK MODEL)
(AEP,UK MODEL)
*
*
(AEP,UK MODEL)
(EXCEPT AEP,UK MODEL)
(EXCEPT AEP,UK MODEL)
(AEP,UK MODEL)
*
*
(EXCEPT AEP,UK
MODEL)
(AEP,UK MODEL)
5.6
4.8
9.5
0.1
11.8
11.7
0.2
0.2
0
0
0
0
2.3
7.9
2.3
2.3
4.7
4.7
8.1
7.9
0.1 [3.6]
6.8
3.4 [5.9]
3.4
3.4
2.2
2.3
2.1
2.5 [2]
0
0.5 [0.2]
3 [3.8]
3 [3.8]
7.9
6.3
2.3
0
0
5
4.8
6.8
0.1[4.2]
0.1[5.9]
0.1
0
0
2.2
4.9
1[0]
1[0]
2.2[11.8]
2.4
4.9
4.9
(AEP,UK MODEL)
(EXCEPT AEP,UK MODEL)
*
EXCEPT
*
(AEP,UK MODEL)
(EXCEPT AEP,UK MODEL)
*
LC72131D
IC102
IC101 LA1845
MAIN BOARD (1/4)
MAIN (3/4)BOARD
2
MAIN
(2/4)
BOARD
1
IC102
PLL
IC101
FM/AM IF MPX
Q103,104
MUTE
Q105
2SC1623
2SC1623
2SC1623
RDS BUFFER
Q101
FM IF BUFFER
Q102
B+ SWITCH
IC103
RDS DECODER
1
2
3
4
5
6
7
8
9
10
11
47 16V
0.47 50V
100
µ
H
33
µ
H
UN4111
C131,132,147
0.015
0.022
R131
10k
22k
R124,141
220
270
R133,134
470
1k
R128,129
1.2k
22k
R138
100
10k
R143,144
4.7k
220k
FM 75
Ω
COAXIAL
FM
75
Ω
AM
ANTENNA
JK101
R106
330
680
1
IC B/D
IC B/D