Sony CDX-C5850R / CDX-C5850RW Service Manual ▷ View online
ANT AM
L
R
L
CD L-CH
ANT FM
1
18
R 16
AM DET 12
FM+B 8
TU+B 9
AM+B 10
VT 5
LCL/DX 4
FM/AM IF 21
VCO 6
AM OSC 13
FM DET 23
S-METER 19
ST/MONO 22
SD 20
SEEK 11
2
CNJ600
(ANTENNA)
TUNER UNIT
TU601
R-CH
FM8V
TU8V
AM8V
CD
SECTION
A
SE3L
SE3R
SCL
SDA
28
FML
1
CDL
OUT FL
12
22
OUT RL 20
PDL
R-CH
11
27
24
25
ELECTRONIC
VOLUME
IC401
PJ400
–1
–2
BUS AUDIO IN
SYSTEM CONTROL
IC801 (2/3)
TU ATT
ATT 60
X1A 73
X0A 74
62
SEEK OUT
82
SD IN
83
ST/MONO
81
S-METER
53
SCL
71
SDA
70
SSTOP
65
X801
32kHz
X0 92
X1 93
AMP ON 56
AMP ATT 31
TEL ATT 80
TEST 66
FM ON/
AM ON
68
TU ON 69
X800
3.68MHz
AMP
Q618
RV801
S-METER
LP OUT
28
5
IF AM
LCL/DA
14
IF FM
15
FM IN
24
AM IN
25
OSC IN
9
OSC OUT
10
S METER
20
XO
4
XI
5
FM DET
16
5
1
SCL 12
SDA 13
SSTOP 16
SDA 9
SCL 10
MPTH 2
DAVN 8
PLL
IC601
MPDH
52
DAVN
67
QUALITY
50
NS MASK
55
X601
10.25MHz
X602
4.3MHz
RDS DECODER
IC602
NOISE
FILTER
IC603
NOISE
CONTROL
Q804
RDS POWER
CONTROL
Q604,605
TU5V
FM8V
RDS5V
MUTE
CONTROL
Q401,402
D402
MUTE
Q111
MUTE
Q110
12
11
4 22
5
3
POWER AMP
IC200
1
9
9
7
2
10
13
15
5
6
7
16
CNP501
STBY
MUTE
Q916
AMP+B
ANT+B
ACC
BATT
F901
FL+
FL–
RL+
RL–
ATT
TEST
AMP REM
ANT REM
ACC
BATT
PJ400
L
R
REAR
R-CH
–6
–5
L
R
FRONT
LINE OUT
R-CH
–4
–3
04
TUNER POWER
CONTROL
Q603,609
AM/FM POWER
CONTROL
Q610,612,615
+5V REG
Q613
+8V
FM 8V
AM 8V
TU 5V
TU 8V
MUTE
Q101
AM OSC
Q614
MUTE
26
VOL ATT
58
• Signal path
: CD
: FM
: MW
4-3. BLOCK DIAGRAM — TUNER SECTION —
CDX-C5850R
– 27 –
– 28 –
(Page 26)
RESET
IC902
1
2
BU5V
BATT
BATT
S901
(NOSE DET)
90
13
RESET
SO
14
CKO
46
KEY IN0
104
CE
DATA
CLK
CE
ILL ON
72 NOSE2
29 SYSRST
76 BU IN
SYSTEM CONTROL
IC801 (3/3)
LCD DRIVE
IC501
LCD
RC
LCD
BACK-UP
CHECK
Q906
SIRCS
BUFFER
Q806
ACC
CHECK
Q905
COLOR
SELECT
Q504
LCD POWER
CONTROL
Q901,902
ROTARY
ENCODER
RE501
KEY ACTIVE
Q914,915
+10V REG
Q903
POWER
CONTROL
Q913,919
BATT
CHECK
Q940
+8V REG
Q904
+8V REG
Q912
CD POWER
CONTROL
Q907,908
ANT POWER
CONTROL
Q924,925
IR
RECEIVER
IC502
13
2
BUS INTERFACE
IC803
RST
RST
22 CK
21 SO
UNI
20 SI
11
4
CLK
CLK
36 BUS ON
24 SIRCS
95 COM8V ON
35 CD ON
32
47
48
MD ON
BATT
101
108
RE IN0 106
RE IN1
KEY IN1
KEY IN2
79
NIL
37
NIL
61
IN1
49
IN0
107
ACC IN
111 ANT REM
109 PW ON
12
1
BUS ON
BUS ON
9
6
DATA
8
DATA
DATA
10
3
BATT
BATT
D910
4
7
8
5
6
1
1
2
3
CNP801
(BUS CONTROL IN)
+5V REG
Q909
CD POWER
CONTROL
Q910,911
BATT
BATT
BATT
ACC
D909
BATT
D940
+8V
LED506,507
LSW511
CD5V
AMP ON
1
2
4
VCC
AMP+B
5 BU+B
AMP+B
ANT+B
MD 8V
BU5V
POWER SUPPLY
IC901
64
63
62
DIM ON 1
AMBER 3
GREEN 2
COLOR
SELECT
Q503
DIMMER
CONTROL
Q501,502
LCD501
LED510,511
D-BASS
S501
D919
D918
CNP802
(REMOTE IN)
(REMOTE IN)
KEY MATRIX
LSW512-521,
LSW531-538
S502
04
S900
RESET
LED501-505
LSW512-521,
LSW531-538
LSW512-521,
LSW531-538
– 29 –
– 30 –
CDX-C5850R
4-4. BLOCK DIAGRAM — DISPLAY SECTION —
DISC IN SW board
LOAD SW board
tuner unit
(TU601)
(TU601)
SUB board
LIMIT SW board
SERVO board
MAIN board
RELAY board
DISPLAY board
– 31 –
– 32 –
4-5. CIRCUIT BOARDS LOCATION
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for 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.
•
%
: indicates tolerance.
•
¢
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• 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
J
: CD
• Abbreviation
G
: German model.
for printed wiring boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
®
: Through hole.
• b
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
• Waveforms
(MODE:PLAY)
1
2
3
4
5
6
7
Approx. 620mVp-p
IC2
1
(FEO)
0V
IC2
#¡
(RFO)
1.2Vp-p
Approx. 200mVp-p
IC2
$™
(TEO)
0V
IC1
3
(MDP)
2.6Vp-p
7.6
µ
sec
IC1
@º
(LRCK)
5.8Vp-p
22.7
µ
sec
IC1
@™
(BCK)
5.7Vp-p
474nsec
16.89MHz
IC1
#¢
(XTAI)
3.2Vp-p
• Abbreviation
G
: German model.
– 33 –
– 34 –
CDX-C5850R
4-6. PRINTED WIRING BOARDS — CD MECHANISM SECTION —
(Page 39)
Ref. No.
Location
IC1
D-3
IC2
E-5
Q1
F-5
Q2
F-6
Q3
F-2
Q4
F-2
Q5
F-2
Q6
F-3
• Semiconductor
Location
M902
(SLED)
M901
(SPINDLE)
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