Read Sony CMT-DC1K / HCD-DC1K Service Manual online
HCD-DC1K
16
16
6-2.
BLOCK DIAGRAM – MAIN Section –
TU1
TUNER PACK
FM75
Ω
ANENNA
L
R
AM
1
2
4
9
Q810
8
Q809
10
Q811
7
Q813
Q809 – 811, 813
TUNER ON/OFF
SWITCH
31
30
17
3
LINE
OUT2
VOL2
OUT2
TREBLE
LOGIC
MIDDLE
BASS
INPUT SELECT SWITCH,
MIX, TONE CONTROL,
ELECTRICAL VOLUME
ELECTRICAL VOLUME
IC323
12
17
14
15
88
28
5
8
19
18
25
AUDIO IN
MD (VIDEO)
SJ302
HRPE901
(RECORD/PLAYBACK/ERASE)
R-CH
(ERASE)
R-CH
L-CH
1
3
2
REC/PB SWITCHING
IC402
REC/PB AMP, EQ AMP
IC401
(REC)
(PB)
(SW)
R-CH
R-CH
4
23
24
20
R-CH
R-CH
ALC
16
14
REC OUT L
PB L
REC
IN L
IN L
B+
(+8V)
BIAS
OSC
T401
REC BIAS SWITCH
Q402, 403
BIAS OSC
Q401
BIAS
TRAP
TRAP
T403
CD L IN
DATA
CLK
DATA
CLK
LATCH
SENS
SENS
SQSO
SQCK
SQCK
XRST
HOLD
C SCOR
HOLD
C SCOR
DATA
CLK
SDA
SCK
95
11 86 14 100
Q801
LED DRIVE
Q854
A
(Page 15)
MUTING
Q100
R-CH
B+ (+8V)
MUTING DRIVE
Q330
4
10
9
14
+
+
–
–
SJ301
L
R
SPEAKER
IMPEADANCE
USE 6 – 16
Ω
R-CH
R-CH
J301
HEADPHONE AMP
IC324
MUTING
Q815, 817
MUTING DRIVE
Q312, 313
MOS GAIN &
LEVEL SHIFT
LEVEL SHIFT
ING STAGE
MOS
OUTPUT
STAGE
SHORT
CIRCUIT
PROTECTION
D853
IN+
IN–
STANDBY/MUTE
MUTE
STBY
B
(Page 17)
REG CON
D
(Page 17)
REC/PB
C
(Page 17)
FM ON
POWER AMP
IC201
R-CH
97
22
24
93
92
X802
32.768KHz
32.768KHz
39
4
40
X801
4.19MHz
CAPSTAN/REEL
MOTOR DRIVE
Q601, 602
10
1
6
32
13
15
TRIGGER
PLUNGER DRIVE
Q603, 604
M
M
TAPE END DETECT
SENSOR
(TAPE DECK BLOCK)
6
5
10
2
33
M901
(LOADING)
M
M
LOADING
MOTOR DRIVE
IC320
• SIGNAL PATH
: TUNER
: CD PLAY (ANALOG OUT)
: CD PLAY (OPTICAL OUT)
: TAPE (PLAY)
: TAPE (RECORD)
: MD
OUT
FM ANT
ANT GND
AM ANT
ANT GND
L-CH
R-CH
R-CH
TUNED
DI
CK
CE
DO
R-CH
B IN L
A IN L
6
2
8
10
INPUT2
INPUT1
OUT2
OUT1
SYSTEM CONTROLLER
IC801 (1/2)
C2
A2
D2
E2
C-SQSO/
RDS-DATA
RDS-DATA
TUNED
C-DATA/TU-DATA
C-CLK/TU-CLK
C-LATCH/TU-CE
SENS2/TU-COUNT
TU-ON
REC/PB
C-SQCK
C-XRST/FM-ON
HOLD
C-SCOR
AU-MUTE
AMP-MUTE
H/P CHECK
TEX
TX
EXTAL1
MOT-CON
XTAL1
SOL-CON
TAPE-END
T-MODE
TC-SW
TRAY-OPEN
TRAY-CLOSE
TRAY-SW
PHONES
SI
DISC TRAY
OPEN/CLOSE DETECT
• R-CH : R-ch is omitted due to same as L-ch.
MUTING
Q414
87 REC-MUTE
96 L-MUTE
R-CH
R-CH
LINE
AMP
AMP
MUTING
Q407
TUNER
/BAND
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