Block Diagram - Main Section - Sony HCD-J300 Service Manual

Q Q
BLOCK DIAGRAM – MAIN SECTION –
3 7 6 3 1 5 1 5 0
PJ301
L
ANALOG
IN
R
TU 1
TUNER UNIT
L-CH
T E
L 1 3 9 4 2 2 9 6 5 1 3
R-CH R-CH
CK
DO
DI
CE
TUNED
FM-DET
FM (7.5V)
FM 7.5V
+B (9.5V) TU 9.5V
L
REC/PB HEAD
R-CH
R
IC402
3 1
P R
4
REC/PB T401
REC BIAS
ERASE BIAS
ERASE HEAD
w w w
X
.
IC301
SOUND PROCESSOR
LINEOUT1 32
9 E1
VOL1 29
OUT1 20
5
C1
R-CH
3 B1
7 D1
15 14
B/UP 5V
AEP,UK
IC309
RDS DECODER
Q329
RDATA 2
AMP 4 MUX
RCLK
XI XO 16
13 14
X301
4.332MHz
IC401
PB AMP,REC AMP,ALC
19
A/B-SW
A IN-L
PB-L
24
20
23
B IN-L
REC IN-L
REC OUT-L
16 14
D401
Q401
+8V
Q402,403
BIAS
OSC
x a o
y
i
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8
MD-L
MD
C
SECTION
(Page 44)
REC-L
IC101
POWER AMP
3
+
Q101
–
2
MUTING
9
IC302
HEADPHONE AMP
3 +
1
–
2
IC306 (3/3)
MASTER CONTROL
Q315,316
Q339
STK-POWER 57
+ SWITCH 58 LINE MUTE
CD8V SWITCH
AMP_MUTE 54
56 VOL_DATA
H/P_MUTE 53
55 VOL_CLK
Q318
SWITCH
H/P_CHECK 52
1 AC CUT
IC316
Q319
RESET
RESET 12 RESET
1 Q 3 Q
SWITCH
3 7 6 3
70 ST-CLK
69 ST-DOUT
71 ST-DIN
72 ST-CE
68 TUNED
51 RDS-DATA CD-POWER 50
18 RDS-INT
Q407
38 TC-MUTE
MUTING
Q414
TU_ON 67
48 REC-MUTE
MUTING
FM_ON 66
POWER-ON
44 REC/PB/PASS
u 1 6 3
.
MDM_POWER 20
DA_MUTE
MD RESET 49
43 43
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2 4
9 9 8
14
R-CH
10
R-CH
Q132
MUTING
Q330,331
MUTING
SWITCH
D902-905
+B
(+22.5V)
1 5 1 5 0 8 9 2 4
POWER AMP
-B
(-22.5V)
Q309-311
B+
CD +5V D906-909
SWITCH
IC303
+8V
3 1
COM8V
REG
IC313
D318
+8V
M +7V 3 1
REG
MD A3.3V
IC314
IC305
+4V +5V
MD 3.3V 1 3 3 1
REG
REG
MD BACKUP
MDM5V
0.22F Q312
+10V
M +10V
REG
Q303,307,308
B+
IC311
TU 9.5V
SWITCH
+8V
CD8V 3 1
REG
Q304-306
B+
FM 7.5V
SWITCH IC310
+12V
COM12V 3 1
REG
Q902
RELAY
2
DRIVER
IC315
D303
+5V
3 1
TC 5V
REG
D919 D910-13
B/UP 5V
Q901,903
m
+5V
REG
c o
D917
COM8V
5V (IC306,Q319)
D920
0.22F
P.DOWN
DA MUTE
5
MD
MD RESET
B
SECTION
(Page 44)
D322
HCD-J300
2
9 9
• R-CH is omitted due to same as L-CH.
• Signal Path
: FM
: CD
: PB
SJ301
: REC
L
: MD(PLAY)
SPEAKER
: MD(REC)
R
• Abbreviation
HK : Hong Kong model
SP : Singapore model
TW : Taiwan model
J301
PHONES
T902
MAIN
TRANSFORMER
9 8 2 9 9
RY901
EXCEPT
SP,HK,TW
SP,HK,TW
S901
VOLTAGE
SELECTOR
T901
SUB
EXCEPT
TRANSFORMER
SP,HK,TW
AC IN