Sony XR-C5120RA Service Manual ▷ View online
13
13
XR-C5120RA
6-2.
BLOCK DIAGRAM – TAPE/MAIN Section –
05
TAPE EQUALIZER AMP, AMS
IC301
34
32
R-CH
PBF
IN1
IN1
FWD
L-CH
HP901
(PLAYBACK)
FWD
R-CH
REV
L-CH
REV
R-CH
PBR
IN1
IN1
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
EQ AMP
29
27
MUTE
DOLBY
NR AMP
PB
OUT1
TAPE
IN1
IN1
AMS
DET
+
113
115
117
114
N-ROUT
MTLON
19
DRSW
18
TAPESW
17
16
20
INSW
TAPE MUTE
DOLBY
AMSON
103
AMSIN
MSSW
24
LINE
OUT1
14
MS
OUT
A
(Page 12)
B
(Page 12)
FM-L
AM
PDL
SE1L
SE3L
SE2L
SDA
SCL
MUTE
1
11
28
12
VOLUME
CONTROL
CIRCUIT
LOUDNESS
CONTROL
CIRCUIT
DIGITAL CONTROL
CIRCUIT
IIC BUS
LOUDNESS
CONTROL
CIRCUIT
INPUT
SELECTOR
R-CH
R-CH
INPUT SELECT,
ELECTRICAL VOLUME
IC401
CNJ151 (1/2)
BUS
AUDIO IN
SOFT
MUTE
TONE
CONTROL
CIRCUIT
FADER
FADER
20
26
25 24
OUT RL
22
OUT FL
L
R
C
(Page 12)
DATA, CLOCK
DATA
CLOCK
SYSTEM CONTROLLER
IC501 (2/3)
60
EVOL MUTE
71
I2C CKO
70
I2C SIO
15
BEEP
CNJ151 (2/2)
AUDIO OUT
(LINE OUT)
R-CH
L
R
68
AMP MUTE
79
TEL-ATT
65
MUTE
MUTING
CONTROL SWITCH
Q621
MUTING
CONTROL SWITCH
Q622
118
AMP ON
BATT B+
BATT B+
D622
D624
D571
D621
FRONT L (+)
11
15
11
17
19
FL+
FL–
9
7
FR+
FR–
FL-IN
FR-IN
14
21
23
RL+
RL–
RL-IN
12
22
5
3
RR+
RR–
RR-IN
4
LEVEL SHIFT
Q571
CN601 (1/2)
(POWER CONNECTOR)
POWER AMP
IC611
FRONT L (–)
10
FRONT R (+)
12
FRONT R (–)
13
REAR L (+)
9
REAR L (–)
8
REAR R (+)
15
REAR R (–)
14
6
MUTING
Q171
MUTING
Q271
MUTING
Q181
ST-BY
MUTE
MUTING
Q281
R-CH
R-CH
CAPSTAN/REEL
MOTOR DRIVE
Q364
CM-ON
BATT B+
Q365
111
M
M901
(CAPSTAN/REEL)
REGULATOR
CONTROL SWITCH
Q362
LM-EJ
TAPEON
LM-LOD
VCC
REEL SENSOR B+
BATT B+
IN1
IN2
OUT1
OUT2
LOADING/TAPE OPERATION
MOTOR DRIVE
IC361
M
7
9
MOTOR
DRIVE
4
2
3
110 109
REGULATOR
Q361
112
LOADING/TAPE
OPERATION
TAPE OPERATION
SWITCH
BUFFER
TAKE-UP
REEL
SENSOR
SUPPLY
REEL
SENSOR
REEL SENSOR BOARD
REEL
104
105 – 108
POS0 – POS3
TAPE
DETECT
EJECT/FF/REW/
REV/FWD MODE DETECT
+
+
TEL-ATT
• SIGNAL PATH
: MW/LW
: FM
: TAPE PLAY
: BUS AUDIO IN
14
14
XR-C5120RA
6-3.
BLOCK DIAGRAM – DISPLAY/KEY CONTROL/BUS CONTROL/POWER SUPPLY Section –
SYSTEM CONTROLLER
IC501 (3/3)
35
RE-IN1
KEYACK
76
KEYIN1
RE-IN0
36
37
KEYIN0
RC-IN0
RC-IN1
46
47
48
72
KEY ACTIVE
SWITCH
Q651, 652
D501
ENCODE –
ENCODE +
D653
AD-ON
LSW901 – 903, 905,
LSW906, 921 – 923,
LSW906, 921 – 923,
LSW925 – 933, S901
ROTARY
ENCODER
RE900
BACKUP +5V
VOLUME/BASS/TREBLE/
BALANCE/FADER CONTROL
RE900
J501
REMOTE IN
80 NOSESW
D-BASS
DOORSW
12
51
CNP901
(FRONT PANEL SIDE)
CN500
(MAIN BODY SIDE)
15
4
S981
D-BASS
15
4
X1
X0
X1A
X0A
93
92
73
74
X501
3.68MHz
X502
32.768kHz
LSW901 – 903, 905,
LSW921 – 923,
LSW925 – 933
SHIFT
3
DI
64
CL
63
60
CE
OSC
62
LCD SO 13
LCD CKO 14
16
LCD CE
LED DRIVE
Q945
ILL B+
ILL B+
LIQUID CRYSTAL DISPLAY DRIVER
IC901
4 – 47
S04 – S47
52 – 55
COM1 – COM4
LIQUID CRYSTAL DISPLAY
LCD901
LSW906
05
BACKUP +5V
RESET SIGNAL
GENERATOR
IC652
BATTERY DETECT
Q701
6
8
4
CLK
CLK IN
DATA OUT
DATA
2
RST
RESET
SWITCH
BUS ON
SWITCH
13
11
1
BUS ON
OUT
BUS
ON IN
ON IN
12
9
DATA IN
SONY BUS INTERFACE
IC701
BATT
BATT B+
BUS ON
DATA
CLK
RESET
7
6
5
4
2
RST
3
BATT
CLK
DATA-OUT
DATA-IN
RST
BUS ON
BU-IN
CLK
DATA-OUT
DATA-IN
RST
BUS ON
BU-IN
BATTERY
SWITCH
10
BU IN
77
10
19
UNICKO
17
UNISI
18
UNISO
86
HSTX
11
90
TH701
D702
D701
RESET
SYSRST
BU-IN
BUS-ON
S503
(RESET)
(FOR SONY BUS)
CN701
BUS CONTROL IN
POWSEL
A (ON)
B (OFF)
56
ACCESSORY CHECK
Q661
ANT+B
FM8V
REGULATOR
IC671
COM8V
AM8V
MODE1
MODE2
STB
1
BATT
ANT REM
2
CN601 (2/2)
(POWER CONNECTOR)
REGULATOR
CONTROL SWITCH
Q82
COM +8V
(AUDIO CIRCUIT B+)
D662
AM B+
FM/AM TUNER UNIT
(TU1) B+
FM B+
VCC
7
5
ACC
+5V
REGULATOR
Q71
+5V
(TUNER CIRCUIT B+)
+9V
REGULATOR
Q81
+9V
(TUNER CIRCUIT B+)
REGULATOR
CONTROL SWITCH
Q633
+10V
REGULATOR
Q631
ILL B+
PL901, 902
(LCD BACK LIGHT)
2
3
4
9
BU+B
BACKUP +5V
D651
5
10
11
8
AMP+B
6
FM-ON
TU-ON
POWON 120
29
ILL-ON
6
7
BATT B+
POWER AMP
(IC611) B+
AMP REM
7
D673
D674
81
ACC IN
S501
POWER SELECT
15
15
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
6-4.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : MW/LW
〈〈
〉〉
: TAPE PLAYBACK
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: FM
f
: MW/LW
L
: BUS AUDIO IN
E
: TAPE PLAYBACK
• Waveforms
– MAIN Board –
– MAIN Board –
1
IC1
2
(OSC OUT)
2
IC51
5
(OSCI)
3
IC501
uf
(XOA)
4
IC501
od
(X1)
0.8 Vp-p
97 ns
3.3 Vp-p
230 ns
3.6 Vp-p
30.6
µ
s
5.8 Vp-p
272 ns
2.7 Vp-p
27
µ
s
– KEY Board –
1
IC901
y;
OSC
16
16
XR-C5120RA
6-5.
PRINTED WIRING BOARD – MAIN Board (Component Side) –
Ref. No.
Location
Ref. No.
Location
• Semiconductor Location
D1
F-14
D61
G-9
D71
D-11
D81
E-3
D90
K-10
D91
K-9
D92
K-9
D93
K-9
D361
H-3
D441
A-12
D481
A-11
D501
H-8
D551
K-13
D552
K-13
D553
J-11
D554
K-12
D555
J-11
D556
J-12
D557
J-11
D558
J-11
D559
J-11
D561
K-13
D562
K-13
D571
C-5
D602
B-4
D603
B-5
D604
H-10
D605
C-5
D611
C-6
D617
B-8
D621
D-9
D622
E-8
D623
D-7
D624
D-7
D631
J-2
D653
I-8
D661
D-5
D662
C-5
D701
F-2
D702
E-3
D703
F-3
D704
C-3
D705
B-3
D706
B-3
IC1
E-12
IC51
I-11
IC90
J-10
IC301
G-11
IC361
I-2
IC401
E-9
IC501
H-6
IC652
G-2
IC701
F-3
Q51
J-13
Q61
G-9
Q71
D-11
Q81
E-3
Q82
E-2
Q90
K-9
Q121
F-8
Q151
F-8
Q171
C-10
Q181
C-11
Q251
F-9
Q271
C-9
Q281
C-10
Q361
I-3
Q362
I-2
Q364
G-3
Q365
H-3
Q571
F-6
Q621
D-8
Q622
E-7
Q633
J-2
Q651
J-8
Q652
J-8
Q661
C-5
Q701
F-3
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