Main Section - Sony HCD-J3MD Service Manual

HCD-J3MD
– MAIN SECTION –
IC302
INPUT SELECTOR
R-CH
J602
14
SELECT
13
LINE
SWITCH
12
IN
B A
9 10
BD (CD) SECTION
(Page 45)
CD-L
MD-L
MD-REC-L
I2C SDA
I2C SCL
MD-LEVEL L
RESET
BD (MD)
SECTION (2/2) P.DOWN
(Page 47)
TUNER UNIT
ANTENNA
L
R R-CH
STEREO
AM STEREO
TUNED
TUNED
DO
FM 75 DO
DI
DI
CLK
FM 300 CLK
CE
CE
MUTE
MUTE
RV431
PB(L)
PB EQ
AMP
LEVEL
IC431
IC432
REC/PB SWITCH
1
2
REC/PB
4
HEAD
R-CH 3
R CH
C438,L437
BIAS
TRAP
RV440
R-CH
REC
BIAS
TC +7V
BIAS
OSC
ERASE
Q462,463 Q461
HEAD
TC MOTOR
BLOCK
CrO2
PACK
F.REC
93
R.REC B HALF
SENSOR 2 B SHUT
PLAY SW 80 B PLAY SW
SWITCH
TRIG M+
68 B TRG
Q473,474
SWITCH
CAP M+ 69 CAPM CNT1
Q471,472
59 32 56 81 58 82 19 33 57
BD (CD) SECTION
16 (Page 45)
IC301
DIGITAL SOUND
CONTROLLER
TC
38
CD
37
SELECT
MD
36 SWITCH 25
TU
39
R-CH
MICON
INTERFACE 35
21 22 20 26
IC401
DOLBY NR/REC EQ AMP
REC
43
REC
DOLBY
48
B
70
PB
A
DOL PB
40
PAS
B
120
46
REC
36 38 39
EQ
RV401
REC(L)
LEVEL
NORM
33
BIAS
CROM
SW
32
19 15 20 22 23 24 25 26
78 79 76 75 74 73 72 65 50 51 54 53 55 52 49
MASTER
CONTROL
IC501
. .
23 26 40 41
71 70 67 66 86 87 89 91 39
. . .
44 63 60 61
6 5
MOTOR LED
ROTARY
DRIVE DRIVE
ENCODER
Q620-630
IC211
S601 S602-620
2 10
VOLUME
M
M103
D601-608
LOADING
D610,611
MOTOR
POWER
1 10
AMP
IC801
MUTE
MUTE SW
CONTROL 8
Q801
Q552
MUTE SW MUTE SW
Q551 Q841
DBFB SW DBFB DET
Q301 D881
OVER LOAD
PROTECT SW
DETECTOR
Q872,873
Q802,871
D943
D947
MD RESET
SWITCH
Q932
30 29 94 45 47 48 38 6 1 27 3 4 42 12 22 43 28
13 15 10 11 34 36 37 35 5
X501 X502
16MHz 62.768kHz 13 14 15 16
. .
12 11 1 64 62 61 59 33 31 24
BUFFER BUFFER
Q601 Q602
VF
FLUORESCENT
INDICATOR TUBE
FL601
VF
48 48
L
TM881
SPEAKER
R
R-CH
RY881
RELAY
DRIVE
Q881
J601
R-CH
HEADPHONES
VF
VF
SWITCH SWITCH
Q542 Q974
-30V REG SWITCH
VP (-30V)
Q971,D979,980 Q975,976
D909
SYS +5V
D910
BACKUP +5V IC908
D911
CHARGER +5.6V
BACKUP +2.7V 3 1
Q908 REG
BT921
BACKUP 2
BATTERY
D908
IC941
D941
AC ON
AC OFF
3 1
RESET
DET
Q941
D945
D944
Q942
S901
RESET
+B
-B
TA +7V
IC909 IC901
+7V +12V
TC +7V 3 1 3 1
REG REG
IC903
+12V
TC M+12V 3 1
REG
IC902
-7V
TC -7V 3 2
REG
IC907
MD M+5V +5V
3
1
TC +5V REG
IC931
RESET D906
MD
SWITCH 3 5
RESET
Q931
BACKUP 3.3V
D905
SYS +3.3V IC906
D904
CHARGER +5V
A +3.3V A +3.3V 3 1
Q904 REG
LED,MD M+5V IC904
+7V
3
CD M+7V 1
REG
A +5V IC905
SWITCH +5V
CD D+5V 3 1
Q902 REG
SWITCH
Q903
T900
POWER
TRANSFORMER
VF SW
Q972,973
AC
RY991 IN
RELAY
DRIVE
RECT Q991
D975-978
RECT
D971-974
RECT
D992,993
T901
SUB
TRANSFORMER
RECT
D832
RECT
D982-985
RECT
D981
• RCH is omitted
• Signal Path
FFM
FPB iTAPE j
FREC iTAPE j
FCD
FCD iDIGITAL OUT j
FPB iMD j
FREC iMD j
FPB iDIGITAL OUT j