Block Diagram - Tuner Section - Sony HCD-GB3 Service Manual

Q Q
7-2. BLOCK DIAGRAM — TUNER SECTION —
3 7 6 3 1 5 1 5 0
D851
CNP802
3
ANTENNA
FM/AM
1
T E
L 1 3 9 4 2 2 9 6 5 1 3
VT
w w w
HCD-GB3
AM TRACKING
L851
2 REG
1
AM RF-IN
L852 AM FREQUENCY
AM OSC COVERAGE
31 AM-OSC
36 FM RF-IN
34 FM RF-OUT
L804
FM RF
D802
FM TRACKING
32 FM-OSC
L805
D803
FM OSC
FM FREQUENCY
COVERAGE
PD
26
LP-IN
27
28 LP-OUT
19 20
X801
75kHz
x a o
y
. i
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IC801
AM/FM IF AMP,
MIX, MPX, DET, OSC
FM/AM PLL
L803
CF803
450kHz
AM-MIX
5 7 AM IF-IN
FM-DET
CF801 CF802
Q803
10.7MHz 10.7MHz
FM MIX
FM-MIX 3 8 FM IF-IN
AMP
TU-ANSD
AGC 25
Q Q
3 7 6
TU-DO
DO 18
TU-DI
16
DI
TU-CLK
17
CL
TU-CE
15
CE
u 1 6 3
.
23 23
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2 4
8 9 9
L-OUT 12
FM DETECTOR
L806
R-OUT 13
11
Q801
+3V
+3V VM9V
REG
Q802
+5V
+5V
REG
3 1 5 1 5 0 8 9 2
m
c o
HCD-GB3
2
8 9 9
TUNER
L-CH L-CH
TUNER
R-CH R-CH
C
MAIN
SECTION
(Page 24)
4 9 8 2 9 9
VM+9V
VM9V
TU-ANSD
TU-DO
TU-CE
TU-DI
TU-CLK
• Signal Path
: TUNER(FM)
: TUNER(AM)