Service manual

XL-E80
4 – 1
AudioXL-E80Service ManualXLE80UMarketE
CHAPTER 4. DIAGRAMS
[1] BLOCK DIAGRAM
FAN
MOTOR
KIA7805AP
VOLTAGE REGULATOR
1
2
3
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
-B
-B
-B
-B
-B
STK45303
POWER
1
4
3
2
HEADPHONES
19171816141312108764321
RI–
RI+ STBY LI–
LI+
GND SUB +VCC
RO– RO+ LO– LO+ +VP –VP –VC
L/R-CH
FRONT SPEAKER
SPEAKER
TERMINAL
M
1
2
R_CH
L_CH
MC_VB
F2
F1
-VFL
RELAY
1
26
9
12
13
14
15
16
10
POWWER TRANSFORMER
AC POWER
SUPPLY CODE
AC 120V, 60Hz
AC 120V, 60Hz
AC INPUT
SOCKET
(MAIN)
11
6
5
4
2
3
4
5
3
O-POWER
I-SAFETY
2A 125V
FROM DISPLAY PWB
SUB
WOOFER
OUT
-B
+B
+B
1
2
3
4
5
6
CD-P.GND
CD-VM
CD-D.GND
CD-R
CD-A.GND
CD-L
CD-P.GND
CD-VM
CD-D.GND
CD-R
CD-A.GND
CD-L
I-TU-SDI
O-AM
O-TU-SCK
O-TU-SDO
O-TU-CE
TUN_+B
+B
TO CD SERVO
PWB
+B
+B
+B
+B
+B
+B
+B +B
75kHz
FM IF
FM IF
FM IF
AM IF
AM IF
TUN_+B
TUN_L/R
2
3
1
AMOSC.
AMANT.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
27 26 25 24 23 22 21 2019
36
35
34 33 32 31 30 29 28
AMRF-IN REG FM-MIX AM-MIX VCC1 FM IF-IN AM IF-IN
VSS
CE P-DET P-CCMP FM-DET L-OUT R-OUT DI CL DO
XIN
XOUT
VDD
MPX-IN
DET-OUT
AMLOWOUT
AGC
PD
LP-OUT
B02
AM-OSC
FM-OSC
FMRF-IN
FM/AM LOOP
ANTENNA
GND2
LP-IN
LP-OUT
B01
FMRF-OUT
LV23002M
VCC2
GND1
AM
Tracking
AM BAND
COVERAGE fL
TP301
PLL(TUNER)/
FM IF DET./FM MPX./AM IF
FM RF
FM OSC
J101
D101~D104
Q104
Q105
C118
C119
Q101
Q102
Q103
Q108
Q106,107
D251~D254
IC201
IC401
Q401~Q404
Q251,Q252
Q254
CNP402
M401
Q201
F101
PT1
RY2
J1
J103
J102
CNS504
CNP302
L302
BPF301
BAND PASS FILTER
Q371
Q301
Q302
Q351
X301
CF303
L305
CF304
IC301
CF302
CF301
D305
L306
D307
D306
L304
L307
Q255
Q256
Q257
Figure 4-1 BLOCK DIAGRAM (1/5)