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XL-MP80H/MP80E
E
Market
XLMP80H
Service Manual
XL-MP80H/MP80E
Audio
CHAPTER 4.
DIAGRAMS
[1] BLOCK DIAGRAM
8
7
J301
FM
ANTENNA
75 OHMS
AM LOOP
ANTENNA
CNP301
1
2
FRONT SPEAKER
L/R-CH
AC 230V, 50Hz
AC POWER
SUPPLY CODE
J1
AC INPUT
SOCKET
AC 230V, 50Hz
PT1
POWWER TRANSFORMER
1
2
3
4
5
6
7
4
3
RY1
RELAY
4
3
2
1
FE301
FM FRONT END
6
5
4
3
2
1
+B
AMOSC.
L306
D305
AM BAND
COVERAGE fL
AM
Tracking
L302
AMANT.
36 35 34 33 32 31 30 29 28
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
+B
CF304
CF301
Q371
AM IF
FM IF
FM IF
L305
+B
J101
SPEAKER
TERMINAL
1
Q255
4
Q256
2
3
Q257
J103
HEADPHONES
(MAIN)
17
16
15
14
13
12
11
10
9
8
2
1
5
6
D1~D4
7
8
9
Figure 4-1 BLOCK DIAGRAM (1/5)
+B
Q305
TP301
Q301
FM DET.
L311
+B
X301
75kHz
27 26 25 24 23 22 21 20 19
IC301
LV23002
PLL(TUNER)/
FM IF DET./FM MPX./AM IF
CF303
AM IF
IC202
STK45303
POWER
1
2
4
-B
-B
-B
+B
Q101
Q102
Q103
D101~D104
-B
+B
Q104
4 – 1
+B
+B
+B
16 15 14 13 12 11 10 9
Q352
IC351
LC72723D
RDS
1 2 3 4 5 6 7 8
+B
Q353
RDS CIRCUIT: H ONLY
+B
CL
O-TU-SCK
(DI)
O-TU-SDO
CE
O-TU-CE
(DO)
I-TU-SDI
+B
Q351
+B
3
6
8
7
10
12
13
14
16
18
+B
D251~D254
IC401
+B
+B
1
3
KIA7805AP
2
VOLTAGE REGULATOR
+B
Q105
Q401~Q404
RDS-SD
RDS-SC
TUN_+B
TUN_L/R
17
19
Q201
Q251~Q254
+B
-B
+B
O-POWER
I-SAFETY
-VFL
F1
F2
MC_VB
CD-L
CD-L
6
CD-A.GND
CD-A.GND
5
CD-R
CD-R
4
CD-D.GND
CD-D.GND
3
1
CD-VM
CD-VM
2
2
CD-P.GND
CD-P.GND
1
CNS504
M
M401
FAN
MOTOR
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