Sharp XL-3000H Service Manual

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XL-1000H/1100H
Figure 21 BLOCK DIAGRAM (1/5)
ANTENNA
TERMINAL
AM Band
Coverage fL
FM MUTE
LEVEL
AM IF
AM Band
Tracking fL
VD301
SVC348S
FM IF DET/
FM MPX/AM IF
IC303
LA1832S
+5V
+5V
VT
+5V
+5V
+B
FM +B
+5V
FM +B
+5V
T302
T306
T351
CF301 CF302
FM IF
FM IF
CF352
CF351
AM IF
L354
LOW PASS
FILTER
SWITCHING
Q301
L341
BALUN
VR351
X352
4.5MHz
VOLTAGE
REGURATOR
AM
GND
FM
75ohms
SO301
VSM
AM RF
OUT OUT OUT OUT
IN IN
CUT
AM LOW
FM/AM
MPX VCO
MPX IN
MO/ST
L-CH
R-CH
FM AFC
AM OSC AM OSC
(AM/FM) PHASE PHASE IF OUT VCC FM DET STEREO SD GND AM IF REG AM MIX OUT IN IN FM IF
23 22 21 20 19 18 17 16 15 1424 13
121110987654321
PLL(TUNER)
111098765431
PD
IF IN
AM IN
FM IN
VDD
AIN
AOUT
VSS
X OUT
22 21 20 19 18 17 16 15 14 13 12
FM FM
MUTE
CE DI CL DO MO/ST IF REQ X IN
IC302
LC72131
8
7
6
5
4321
FE301
FM FRONT END
TP301
456kHz
X351
Q351
Q360
ZD351
10
11
1
2
3
4
5
8
9
6
7
SD
FM ST
DO
CL
CE
DI
A_12V
D_GND
TUN_L
TUN_R
A_GND
TO
MAIN PWB
CNS307
TUNER PWB

Sharp XL-3000H Specifications

General

Brand	Sharp
Model	XL-3000H
Category	Stereo System
Language	English