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60
60
HCD-HPX9
HCD-HPX9
7-2. BLOCK DIAGRAMS — MAIN SECTION —
INPUT SELECT,
TONE CONTROL,
ELECTRICAL VOLUME
IC302
J301
R-CH
R-CH
R-CH
CD
L-CH
HRP350
(REC/PB/ERASE)
R-CH
ERASE
R/P
BIAS
REC/PB SWITCH
IC301
8
M+10V
BIAS OSC
T301
LEVEL SHIFT
Q301, 302
BIAS OSC
Q303, 304
BIAS TRAP
T101
REC BIAS
(L)
RIPPLE
FILTER
Q305
REC BIAS
SWITCH
Q306, 307
RV101
M
M
CAPSTAN/REEL
MOTOR DRIVE
Q310, 311
TRGM+
TC CONT
TC TRG
HALF
END SW
PLAY SW
PLUNGER
DRIVE
Q308, 309
CAPSTAN/
REEL
TAPE MECHANISM
DECK BLOCK
TUNED
STEREO
MUTE
DI
DO
CLK
CE
TUNED
STEREO
ST MUTE
ST DOUT
ST CLK
ST CE
AM
FM 75
Ω
71
72
73
70
69
68
67
ST DIN
ST DOUT
ST CLK
ST CE
TUNED
STEREO
ST MUTE
TC TRG
TC CONT
HALF
PLAY SW
END SW
BIAS
R/P
S301
(TC DOOR)
AC DET
19
18
R-CH
R-CH
R-CH
R-CH
MUTING
Q501
D609
D611
D608
THP801
OVER LOAD
DETECT
Q502
POWER ON
MUTING
Q601
PROTECT
SWICTH
Q608
STANDBY
SWITCH
Q604
MUTING
CONTROL
Q602, 603
TEMPERATURE
DETECT
Q607
PROTECT
CONTROL
IC602
1
RELAY
OFF SWITCH
Q609
RELAY
DRIVE
Q610, 611
SPEAKER
IMPEDANCE
USE 6 – 16
Ω
TM301
RY301
+
+
+
RELAY
B+ SWITCH
Q605, 606
+POWER
UNREG
PHONES
L
R
J321
FAN MOTOR
DRIVE
Q315
M301
(FAN)
+13V
REGULATOR
Q324
M
OVER LOAD
DETECT
Q316
HP SW
L
R
MD/VIDEO
• SIGNAL PATH
: CD PLAY
: FM
: AUX IN
: TAPE PLAY
: TAPE REC
• R-ch is omitted due to same as L-ch.
+
+
–
–
15
13
X302
16MHz
11
10
X301
32.768kHz
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299