28
28
XR-M500R/M550
A
(Page 27)
B
(Page 27)
MPX
C
(Page 27)
AM-IF
AM
D
(Page 27)
TAPE L
R-CH
CN300 (1/2)
BUS
AUDIO IN
L
R
SEL
AM
SDA
SCL
SM
1
11
FD1L–
4
AMIF
12
MPX
13
LOUDNESS
VOLUME
IIC BUS
DIGITAL
CONTROL
INPUT SELECT, FM MPX,
ELECTRICAL VOLUME
IC100
SOFT
MUTE
TONE
CONTROL
LOUDNESS
25
18
MPIN
20 21
OUTSWR
24
OUTSSL
23
OUTSSR
R-CH
INPUT
MULTIPLEXER
OUTPUT
SELECTOR
SUBWOOFER
+PHASE CONTROL
26
OUTSWL
MONO
FADER
29
OUT LR
MONO
FADER
30
OUT LF
MIXER
PILOT
CANCELATION
AM/FM NOISE
BLANKER
D/A
CONVERTER
DEMODULATOR
STEREO ADJUST
STEREO BLEND
HIGH-
CUT
L.P.F
MUTE
PILOT DET
L.P.F.
QUAL
S & H
PLL
LEVEL
15
14
QUALITY
17
E
(Page 27)
DATA, CLOCK
DATA
CLOCK
SYSTEM CONTROLLER
IC601 (2/4)
31
71
IIC-SCL
70
IIC-SDA
TEL-MUTE
ST-BY 55
MUTE
5
VOL ATT
16
84
G
(Page 27)
LEVEL
CN300 (2/2)
CN200
AUDIO OUT
FRONT
L
R
R-CH
MUTING
Q250
MUTING
Q251
4
STBY
22
MUTE
11
12
IN1
15 IN3
IN2
14 IN4
POWER AMP
IC300
5
3
21
23
OUT2+
OUT2–
OUT4+
OUT4–
7
OUT1+
OUT1–
17
19
OUT3+
OUT3–
CN301 (1/2)
(POWER CONNECTOR)
1
9
FL+
FL–
FR+
FR–
RL+
RL–
RR+
RR–
4
2
12
10
3
11
TEL-ATT
13
TEST
15
9
AMP MUTING
SWITCH
Q222
LEVEL SHIFT
Q603
MUTING
CONTROL SWITCH
Q220, 221
AUDIO OUT
REAR
L
R
R-CH
MUTING
Q200
MUTING
Q201
R-CH
05
D200
D204
D203
SUB OUT
(MONO)
(L)
(R)
MUTING
Q204
MUTING
Q254
(Page 30)
AMP ON
D201
I
MUTE
(Page 29)
SPEANA
H
(Page 29)
BATT
B+
J
LINE DRIVER
IC200
TESTIN
D206
BATTERY OFF
MUTE DRIVER
Q223
D205
BATT
B+
(XR-M550)
(XR-M550)
(XR-M500R)
(XR-M500R)
• SIGNAL PATH
: AM (MW/LW)
: FM
: TAPE PLAY
: BUS AUDIO IN
LINE DRIVER
IC200
7-2.
BLOCK DIAGRAM – MAIN Section –
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
