Read Sony SRF-HM01V Service Manual online
SRF-HM01V
9
9
SECTION 4
DIAGRAMS
4-1.
BLOCK DIAGRAM – TUNER Section –
14
LPF1
21
MODE1
22
MODE2
52
BAND1
53
BAND2
50
MONO/ST
38
OSC IN
23
OSC OUT
40
D0
13
16
MPX IN
12
DET OUT
AF
AMP
8
FM IF IN
10
AM IF IN
AM
DET
AM IF
AMP
FM IF
AMP
FM
DET
4
FM MIX
2
FM RF IN
1
TV RF IN
FM/TV
MIX
24
TV/FM OSC
30
TV RF OUT
29
FM RF OUT
D1
TV
TRACKING
CT1
L5
TV/FM
OSC
L2
FM RF
D4
D5
D2
CT2
FM TRACKING
CT2, L2
B. P. F.
BPF1
AM BAND
SWITCHING
Q2
FM WIRE
ANTTENA
TUNER
B+
TV/WB/FM
SENS
S1
LOCAL
DX
27
AM RF IN
AM RF
BUFFER
Q5
30
AM BAND
AM BAND
SWITCHING
Q6, 7
LOW-PASS
FILTER
Q301, 302
L3
AM FERRITE-ROD
ANTTENA
AM TRACKING
CT3, L3
D3
L4
AM OSC
AM VCO VOLTAGE
L4
BUFFER
AM
MIX
5
AM MIX
25
AM OSC
OSC
OSC
CF3
450kHz
CF2
10.7MHz
FM/AM/TV
POWER
SWITCH
FM
MPX
MONO/ST
SWITCHING
Q4
AM BAND
SWITCHING
Q3
15
BUFFER
Q8
11
QUAD
CF4
10.7MHz
SIGNAL PATH
: FM/TV (2
−
6ch)
: TV (7
−
13ch) /WEATHER
: AM
LOUT
ROUT
A
FM/TV FRONT-END,
FM/AM IF AMP,
FM MPX
IC1
SYSTEM CONTROLLER
IC301 (1/2)
LOUT
ROUT
TV/FM/WB
RF AMP
Q1
(Page 10)
DX/LOCAL
SWITCHING
Q9
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