Block Diagram - Main Section - Sony HCD-PX5 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
6-3. BLOCK DIAGRAM – MAIN Section –
J702
R-CH
ANALOG
IN
J501
L
TAPE IN
R R-CH
36
38
LOUT
(Page 50) H
37
39
TUNER PACK
L
R
R-CH
COAXIAL
FM ANT
FM 75Ω
GND
T E
L 1 3 9 4 2 2 9 6 5 1 3
AM ANT
DOUT
AM
DIN
GND
CLK
CE
TUNED
STEREO
MUTE
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: FM
: CD PLAY
: MD REC
: TAPE IN (PLAY)
: TAPE OUT (REC)
: ANALOG IN
w w w
IIC DATA, IIC CLK,
IIC HELP
F
(Page 50)
.
05
BUFFER
IC401
INPUT SELECT SWITCH,
TONE CONTROL,
ELECTRICAL VOLUME
IC505
35
LINE
TC INPUT TONE VOLUME
T-O V-I
SELECT CONTROL 30 29 CONTROL
CDMD
SWITCH CIRCUIT CIRCUIT
ST
CPU INTERFACE
21 22 20
1 2 100
83 RECLEVEL L
27 ST->TA DATA
26 TA->ST DATA
28 ST CLK
25 ST CE
24 ST TUNED
23 ST STEREO
22 ST MUTE
SYSTEM CONTROLLER
IC506 (1/2)
39 X1
X503
16MHz
38 X2
35 XT1
X502
32.768MHz
36 XT2
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i
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8
BASS BOOST
V-O B-I OUT
POWER AMP
28 27 CONTROL 25
CIRCUIT
MUTING
Q805
R-CH R-CH
26
+
MUTING
CONTROL
Q Q
Q512
3 7 6 3
Q301
FEED BACK
SWITCH D801
VREF
43
3 5 18
SY
BUFFER
6 BUFFER
Q504
SX
BUFFER
3 BUFFER
Q503
IIC BUS EXTENDER
IC502
u 1 6 3
.
51 51
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2 4
9 9 8
LIN
MUTING
R-CH
Q501
+
R-CH R-CH
MUTING
CONTROL
Q511
R-CH
MUTING
Q672
R-CH
IC801
R-CH
+ +
R-CH RY801
R-CH
R-CH
PROTECT
DETECT
Q802, 803
RELAY DRIVE
Q804
+
MUTING
CONTROL
Q513
1 5 1 5 0 8 9 2 4
MUTING
CONTROL
Q671, 674
D852
44 32 29 45 48 67
FAN 63
D853
KBD CHK 51
17 15 92
D516
LY
7 2 1
13
3 4
5
D521
LX
2 10 11
12
m
9 8
6
c o
IIC BUS SWITCH
CONTROL
IIC BUS SWITCH
Q158 – 160
IC501
HCD-PX5
2
9 9
G
(Page 50)
J502
L
TAPE OUT
R
J701
PHONES
TM801
+
L
–
SPEAKER
IMPEDANCE
+
USE 6 – 16Ω
R
–
9 8 2 9 9
FAN+12V
THP851
M801
(FAN)
FAN MOTOR
M M
DRIVE
Q854
FAN MOTOR
FAN MOTOR
+ ON/OFF
CONTROL
CONTROL
Q853
Q851, 852
D522
6
POWER
1 J503
DATA
PC LINC
5
CLK
2
PCLK INSERTED
6
POWER
1
J703
DATA
5 PC LINK/
CLK
KEYBOARD
2
PCLK INSERTED