Block Diagrams - Main Section - Sony HCD-HPX9 Service Manual

HCD-HPX9
7-2. BLOCK DIAGRAMS — MAIN SECTION —
CD
A
HRP350
(REC/PB/ERASE)
L-CH
R-CH
R-CH
7 9
CONT
8
REC/PB SWITCH
RV101
IC301
REC BIAS
(L)
R-CH
BIAS OSC
T301
ERASE
BIAS OSC
Q303, 304
TAPE MECHANISM
DECK BLOCK
CAPSTAN/REEL
M+10V
M M
MOTOR DRIVE
Q310, 311
CAPSTAN/
REEL
PLUNGER
TRGM+ DRIVE
Q308, 309
PACK
F REC
R REC
END SW
PLAY SW
FM/AM
TUNER PACK
ANTENNA
FM 75Ω
LOUT
ROUT R-CH
ST DIN
AM
DI
ST DOUT
DO
ST CLK
CLK
ST CE
CE
TUNED
TUNED
STEREO
STEREO
ST MUTE
MUTE
HCD-HPX9
J301
MD IN L
L 1
MD/VIDEO
R
R-CH
CD IN L
61
TU IN L
63
TAPE IN L
11
PB
BIAS TRAP
OUT L
T101 7
TAPE L
3
R/P
LEVEL SHIFT
REC OUT L
4
15
Q301, 302
RIPPLE REC BIAS
BIAS
FILTER SWITCH
Q305 Q306, 307
TC CONT
TC TRG
HALF
END SW
PLAY SW
76 77 95 75 94 78 79
71 72 73 70 69 68 67
INPUT SELECT,
TONE CONTROL,
POWER ON
ELECTRICAL VOLUME
MUTING
IC302
Q601
TONE VOL VOL
OUT IN L OUT L
EQ 37 36 33
MUTING
Q501
R-CH
D611
MUTING
CONTROL
Q602, 603
19 18
TEMPERATURE
DETECT
Q607
THP801
S301
(TC DOOR)
87 88 82 83
SYSTEM CONTROLLER
IC306 (2/3)
15 13
X302
16MHz
60 60
POWER AMP
IC601
+
STANDBY OVER LOAD
R-CH
SWITCH DETECT
Q604 Q502
RELAY
DRIVE
+
R-CH
Q610, 611
PROTECT
CONTROL
IC602
VP
2
RELAY
CT 4 OFF SWITCH
Q609
OUT 3
1
D609
PROTECT
SWICTH
Q608
D608
FAN MOTOR
DRIVE
UNREG
Q315
86 84 85
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
11 10
X301
32.768kHz
AC DET
C
HP SW
B
R-CH
J321
PHONES
+
L
TM301
+
–
SPEAKER
IMPEDANCE
+
USE 6 – 16Ω
R
–
RY301
RELAY
B+ SWITCH
Q605, 606
+POWER
OVER LOAD
DETECT
Q316
+13V
M301
M
REGULATOR
(FAN)
Q324
: FM
: CD PLAY
: TAPE PLAY
: TAPE REC
: AUX IN