Read Sony HS-JM400 Service Manual online
11
11
HS-JM400
6-1. BLOCK DIAGRAM – TUNER SECTION –
1
4
8
24
21
23
FM
RF AMP
FM/AM
MIX AMP
FM/AM
OSC
FM
IF AMP
DECODER
AMP
SWITCH
DIVIDER/
VCO
FM
DET
LEVEL
DET
AM
DET
FM
MUTE
AF
BUFFER
AM
IF AMP
PD1
PD2
AM
RF AMP
7
FM-RF
IN
IN
MIX
CF2
10.7MHz
X2
10.7MHz
CF1
455kHz
12
FM
IF IN
IF IN
14
13
L OUT
R OUT
15
16
10
AM
IF IN
IF IN
LP2
BAND
LP1
MO-ST
TUN LED
FM OSC
20
AM OSC
L1
AM
FERRITE BAR
ANTENNA
FM-RF OUT
AM-RF
IN
IN
L2
FM RF
FM/AM RF AMP, FM/AM MIX AMP,
FM/AM OSC, FM/AM IF AMP, DET, MPX
IC1
CT1-2
CV1-2
CV1
TUNING
CT1-1
CV1-1
L3
FM OSC
CT1-3
CV1-3
L4
AM OSC
CT1-4
CV1-4
CT1-3, L3
FM FREQUENCY
COVERAGE
CT1-4, L4
AM FREQUENCY
COVERAGE
CT1-1, L1
AM TRACKING
CT1-2, L2
FM TRACKING
T1
AM IF
B.P.F.
CP1
ANT
ANT1
FM
TELESCOPIC
ANTENNA
C
D
B
TU L, TU R
A
11
ST LED
AGC
TUN
LED
ST
LED
DET-OUT
AF
AMP
MPX-IN
QUAD
18
17
D33
AM
FM
TUNER MUTING
C2
TU VCC
S1
FM ST
MONO
R5
JR3
Q33, 34
BAND SELECT
SWITCH
Q30, 32
MUTING
CONTROL
MAIN Section
(Page 12)
MAIN Section
(Page 12)
MAIN Section
(Page 12)
MAIN Section
(Page 12)
• SIGNAL PATH
: FM
: AM
Click on the first or last page to see other HS-JM400 service manuals if exist.