Block Diagram - Audio/Video Section - Sony HCD-GX450 Service Manual

4-2. BLOCK DIAGRAM – AUDIO/VIDEO SECTION –
J803
VIDEO
OUT
J804
VIDEO
GEME
INPUT L
AUDIO
R
BD/DRIVER CD-L
A
Section
FM 75Ω
COAXIAL
AM
L-CH
HP1
(PB)
(DECK-A)
R-CH R-CH
L-CH
HRPE1
R-CH R-CH
(REC/PB/ERASE)
(DECK-B)
ERASE
PB MUTING
Q209
HCD-GX450
R-CH
TUNER PACK
TUNER-L
FM ANT
TUNER-R R-CH
ANT GND
DO
LC72121 DI
AM ANT
DI
LC72121 DO
CLK
LC72121 CLK
ANT GND
CE
LC72121 CE
TUNED
TUNED
STEREO
STEREO
TU-MUTING
TU MUTE
BIAS OSC
L201
BIAS OSC
Q201
REC BIAS
+9V
SWITCH
Q231, 232
REC MUTING
Q205, 207
R-CH R-CH
Q203
90 91 67 66 65 68 69 70
63 MD L
1 CD L
TONE OUT1 37
61 TUNER L
R-CH
3 TAPE L 30
35
VOL OUT1 33
36 VIN1
VOL OUT2 32
INPUT SELECT,
SW OUT 25
TONE CONTROL,
ELECTRICAL VOLUME
IC101
7 PB OUT1
REC OUT1 15
9 TAPE A1
11 TAPE B1
19 18 40 55
BAND-PASS
FILTER
Q111, 112
D923 D921
71 1 2 92 93 94
SYSTEM CONTROLLER
IC901 (2/4)
19 19
R-CH
FEED BACK
DBFB
SWITCH
Q141
VOL OUT1
AMP
B
R-CH
Section
SW OUT
HP IN
81
HCD-GX450
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER
: CD
: TAPE PLAY (DECK A)
: TAPE PLAY (DECK B)
(DECK B)
: REC
: AUDIO
: VIDEO
TAPE MECHANISM
DECK BLOCK
CAPSTAN/REEL
M M
MOTOR DRIVE
Q341, 342
(CAPSTAN/REEL)
PLUNGER DRIVE
(DECK-A)
Q345, 346
(DECK-A)
PLUNGER DRIVE
(DECK-B)
Q343, 344
(DECK-B)
A-HALF
A-MODE
85 86 87
I-TAPE-A-STAT 88 REC (REW)
B-HALF
B-MODE
I-TAPE-B-STAT 89 REC (FWD)
I-REEL-A 83 A-PHOTO
I-REEL-B 84 B-PHOTO