Block Diagrams - Sony HCD-EP303 Service Manual

HCD-EP303

6-2. Block Diagrams

TUNER/TAPE DECK Section
ANT1
BPF
FM
ANT
FM RF
L
REC/PB HEAD
R R-CH
ERASE HEAD
(MAGNET)
COTR
A
AMP SECTION
M201
M
(CAPSTAN/REEL)
AM TRACKING
TC102
L110
AM ANT
AMRF
1
IN
D105
T102
AM FREQUENCY
AM OSC
COVERAGE
AM
3
OSC
24 FMRF
IN
FM TRACKING
TC101
FMRF
22
OUT
L103
FM
20
OSC
D103
15
Q102
BAND
Q101
SWITCH
FM OSC
L104
BUFFER
D104
FM OSC
16 7
FM FREQUENCY
COVERAGE
PD
18
19 LRFIN
20 LPFOUT
SW701
IN1
(4/6)
7
PB
REC
SW701
(3/6)
REC
PB
SW701
(6/6)
T701
Q706
PB
REC BIAS
REC
REC
BIAS
OSC
S201
(PLAY)
DC_12V
IC101
AM/FM IF AMP,
MIX, MPX, DET, OSC
T103
F102
AM MIX 9 11 AM IF
FM DET
F101
10.7MHz
FM MIX 5 10 QUAD
STOUT
Q104
SD 12
AMP
7 8
ST
11 12 15
SIG
6
DO
PLLDI
DI 4
IC102
PLLCL
CL 5
FM/AM PLL
PLLCE
3
CE
1 22
X102
7.2MHz
IC701
ALC REC/PB AMP
SW701
OUT1
(5/6)
AMP 4
REC
ALC IN1 3
PB
ALC CONT
2
Q704
MUTING
CONTROL
SWITCH
Q703
MUTING
CONTROL
SWITCH
18 18
TUNER
L-CH
L 16
X101
10.7MHz
R 17 R-CH
13
• R-CH is omitted due to same as L-CH.
• Signal Path
: FM
: AM
: PB(TAPE)
: REC(TAPE)
PL
Q702
MUTING
RL
SIG
Q601
BUFFER
+
PLLCE
45 41 36 37 47 38
IC601 (1/3)
PLLDO SELECT 60
SYSTEM CONTROLLER
B
AMP SECTION
C
AMP SECTION
D
AMP SECTION
E
DISPLAY SECTION
F
DISPLAY SECTION