Sony CX-JE3 / JAX-E3 Service Manual ▷ View online
CX-JE3
17
17
SECTION 5
ELECTRICAL ADJUSTMENTS
CD TEST MODE
• This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the pickup.
Procedure:
1. In the status where AC plug is disconnected, while pressing
1. In the status where AC plug is disconnected, while pressing
the
[CD]
button, connect the AC plug to turn the power on.
2. When enter this mode, it displays “CD TEST” and few sec-
onds later, all segments turn on of the fluorescent indicator
tube.
tube.
3. To release from this mode, disconnect the AC plug and turn
the power off.
In this mode, it operates as following table.
Button
Operation
Purpose of use
M
Move the pick-up to outside track
Sled circuit check
m
Move the pick-up to inside track
Tracking circuit check
Mechanism operation check
Optical pick-up check
N
Playback a CD
Servo block check
If it cannot focus on, it continuous focus search
x
When playback a CD: stop playback
APC circuit check
When stop a CD:
Laser current measure
display “READING” (blink)
Focus search waveform check
continuous laser diode on
Tracking balance check
continuous focus search (not made focus on)
X
Pause, Tracking servo off
(ignore CLV error)
CD SECTION
Note:
1.
CD Block is basically designed to operate without adjustment. Therefore,
check each item in order given.
check each item in order given.
2.
Use YEDS-18 (3-702-101-01) unless otherwise indicated.
3.
Use an oscilloscope with more than 10M
Ω impedance.
4.
Clean the object lens by an applicator with neutral detergent when the
signal level is low than specified value with the following checks.
signal level is low than specified value with the following checks.
S-CURVE CHECK
Procedure :
1. Connect an oscilloscope to TP (FE) and TP (VC).
2. Turn the power on.
3. Load a disc (YEDS-18) and actuate the focus search. (In
1. Connect an oscilloscope to TP (FE) and TP (VC).
2. Turn the power on.
3. Load a disc (YEDS-18) and actuate the focus search. (In
consequence of open and close the disc tray, actuate the focus
search)
search)
4. Confirm that the oscilloscope waveform (S-curve) is
symmetrical between A and B. And confirm peak to peak level
within 3
within 3
± 0.5 Vp-p.
Note:
• Try to measure several times to make sure than the ratio
of A : B or B : A is more than 10 : 7.
• Take sweep time as long as possible and light up the
brightness to obtain best waveform.
RF LEVEL CHECK
Procedure :
1. Connect an oscilloscope to TP (RF) and TP (VC).
2. Turn the power on.
3. Load a disc (YEDS-18) and playback.
4. Confirm that oscilloscope waveform is clear and check if RF
1. Connect an oscilloscope to TP (RF) and TP (VC).
2. Turn the power on.
3. Load a disc (YEDS-18) and playback.
4. Confirm that oscilloscope waveform is clear and check if RF
signal level is correct or not.
BD board
Oscilloscope
TP(FE)
TP(VC)
TP(VC)
symmetry
S-curve waveform
within 3
±
0.5Vp-p
A
B
TP(RF)
BD board
oscilloscope
TP(VC)
Note:
Clear RF signal waveform means that the shape “
◊ ” can be clearly
distinguished at the center of the waveform.
Connecting Location: BD board
RF signal waveform
VOLT/DIV : 200mV
TIME/DIV : 500ns
TIME/DIV : 500ns
level : 1.3
±
0.3Vp-p
– BD Board (Conductor side) –
TP (RF)
TP (VC)
TP (FE)
TP (FE)
IC721
CX-JE3
18
18
8
7
9
10
80
79
70 LIMIT SW
20
TDO
18
10
VO3(+)
FOIN
20
TIN
3
SPIN
7
LDS
25
SLIN
17 VO3(–)
11 VO2(+)
12 VO2(–)
26 VO4(+)
27 VO4(–)
2 VO1(+)
1 VO1(–)
A
C
B
D
E
F
LD
PD
CD DSP
IC721
21
FDO
23
SLDO
22
SPDO
25
CONT4
A
B
D
E
F
C
I-V AMP
DETECTOR
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSM-213DCP)
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
M702
(SPINDLE)
M701
(SLED)
M
M
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC722
49
48
X701
16.9344MHz
S701
(LIMIT)
79 DATAIN
80 DATACK
I/O1 – I/O16
A0 – A8
MDATA0
– MDATA15
MADRS0
– MADRS8
5 C2FIN
1 LRSY
2 ADDATA
3 ADBCK
4 ADLRCK
7 CKIN
9 CKOUT
78 RESB
99 CD DO
98 CD DI
100 CD CLK
5 CD CE
97 CD WRQ
95 CD DRF
4 CD RESET
60
DATA
59
DATACK
52
C2F
58
LRSY
29 OE
45
OEB
15 WE
42
WEB
16 RAS
41
RASB
31 LCAS
43
CASLB
30 UCAS
44
CASUB
57
ASDFIN
56
ASDACK
55
ASLRCK
54
16MOUT
10
6
76 66
53
EFLG
50
FSX/16MIN
73 CMDOUT
74 CMDIN
CE
FSYNC
MP3 CE
MP3 SYNC
75 CL
26
MP3RES
64
DO
63
DI
62
CL
74
CD NUMBER SENS
20
CD BUSY
9
RIN
LM-R
11
RESET
1
MUTE
94
POWER
27
HOLD
MUTE
POWER
HOLD
61
CE
65
WRQ
67
DRF
66
RES
4 OUT1
2 OUT2
M751
(LOADING)
M
LOADING MOTOR DRIVE
IC701
MP3 DECODER
IC801
IC802
MEMORY
SYSTEM CONTROLLER
IC901 (1/2)
S751
OPEN/CLOSE
DETECT
OPEN
CLOSE
LEVEL SHIFT
Q731
TABLE ADDRESS
SENSOR
IC731
+
ROTARY
ENCODER
S711
7
FIN
LM-F
9
RIN
TM-R
4 OUT1
2 OUT2
M741
(TABLE)
M
TABLE MOTOR DRIVE
IC712
7
FIN
TM-F
LM-L, LM-R,
TM-L, TM-R
D
O-MUTE,
O-POWER,
HOLD
B
42
LCHO
45
RCHO
R-CH
CD
A
APC
FIN2
FIN1
LDD
LDS
TIN2
TIN1
XOUT
XIN
RF
4
EFMIN
3
ERROR
CORRECT
EQ,
AGC
COMMAND
INTERFACE
INTERFACE
CLOCK
GENERATOR
PH, BH
RF AMP
TBAL
A/D
CONVERTER
D/A
CONVERTER
EXTERNAL
AUDIO IN
SERIAL OUT
D/A
CONVERTER
SERVO
PROCESSOR
AUTOMATIC
POWER CONTROL
Q701
18
POWER DOWN
P-DOWN
RESET
RESET,
P-DOWN
C
• SIGNAL PATH
: CD
• R-ch is omitted due to same as L-ch.
(Page 20)
(Page 20)
(Page 20)
(Page 20)
2-5, 7-10,
35-38, 40-43
23-30, 33-40
60-53, 50
18-21, 24-28
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – CD Section –
CX-JE3
19
19
8
CAPSTAN/REEL
MOTOR DRIVE
Q601, 604
9
PLUNGER DRIVE
(DECK-A)
Q602, 605
M
M
TAPE MECHANISM
DECK BLOCK
(CAPSTAN/REEL)
(DECK-A)
(DECK-B)
MOTOR/PLUNGER DRIVE,
LED DRIVE
IC201
• SIGNAL PATH
: TUNER
: TAPE PLAY (DECK-A)
: TAPE PLAY (DECK-B)
: TAPE REC
O-MOTOR
PB2
18
6
O-BIAS 7
SO
3 DATA
96 TU DI
88 CLK
9 TU CE
75 TUNED
76 STEREO
85 TU MUTE
2 RDS DO
28 RDS CKL
19 TU-SIG/MIC
22 SPEANA-M
3 TU/EVOL DO
4 CLK
5 LCK
SOL A
• R-ch is omitted due to same as L-ch.
F
PB,
REC
(Page 20)
G
DATA, CLK,
S-OUT, LCK
(Page 20)
E
TU
(Page 20)
FM/AM TUNER PACK
AM LOOP
FM ANT
AM ANT
L-CH
R-CH
CE
PLL-CE
R-CH
TUNED
TUNED
STEREO
STEREO
MUTE
TU-MUTE
DO
DATA
DI
IFC
CL
CLK
RDS DATA
RDS-DATA
RDS INT
RDS-CLK
FM-SOUT
RDS-SIG
PLL-CE
TUNED
STEREO
TU-MUTE
DATA
IFC
CLK
DATA
CLK
DATA
S-OUT
LCK
CLK
RDS-DATA
RDS-CLK
RDS-SIG
BIAS OSC
L311
REC BIAS
SWITCH
Q311, 312
B+
(CD-VM)
BIAS OSC
Q310
MUTING
Q305
PB SWITCH
Q301
ERASE
HRPE1
(REC/PB/ERASE)
(DECK-B)
HP1
(PB)
(DECK-A)
L-CH
R-CH
R-CH
R-CH
Q601
REC
PB
L-CH
R-CH
R-CH
21 SPEANA-L
23 SPEANA-H
BAND-PASS
FILTER
Q204 – 206
29 RMC
REMOTE CONTROL
RECEIVER
IC801
S301 – 323
(FRONT PANEL KEY)
78 VOL B
77 VOL A
ROTARY
ENCODER
S801
PB SWITCH
Q303
AMP
Q201, 202
B+ SWITCH
Q607
FL901
FLUORESCENT
INDICATOR TUBE
MUTING
Q307, 309
10
PLUNGER DRIVE
(DECK-B)
Q603, 606
SOL B
LED201
LED901
A-PHOTO
B-SOL
A-SOL
CAPM+
B-PHOTO
A-HALF
B-HALF
A-MODE
B-MODE
REC (FWD)
REC (REV)
11 V-BASS
+3.3V
B+
D620 – 627
B+
B PHOTO/S7
B HALF/S10
REC FWD/S11
REC REV/S8
S14 – S25
S6 – S13
S1 – S5,
S26 – S30
G1 – G11
47
48
54
52
53
49
A PHOTO/S6
92
KEYSCAN
A HALF/S12
S7
S10
S11
S8
S6
S12
B MODE/S9
55
50
A MODE/S13
S9
S13
S7
S10
S11
S8
S6
S12
S9
S13
93
POWER LED
8
LCK
56-67
30-40
41-45,
68-71,73
SPEANA
SPEANA
H
VOLUME
82 TRE B
81 TRE A
ROTARY
ENCODER
S803
TREBLE
84 BASS B
83 BASS A
ROTARY
ENCODER
S802
BASS
80 JOG B
KEY1 –
KEY3
79 JOG A
ROTARY
ENCODER
S804
MULTI JOG
26 – 24
X901
32.768kHz
13
12
XT2
XT1
16
15
X902
8.64MHz
CF2
CF1
i-BASS
1
STANDBY/ON
(Page 20)
SYSTEM CONTROLLER
IC901 (2/2)
FM 75Ω
(COAXIAL)
6-2.
BLOCK DIAGRAM – TUNER/TAPE/PANEL Section –
CX-JE3
20
20
J221
R-CH
PHONES
SPEAKER
+
–
–
–
+
R
L
J203
R-CH
OVER LOAD
DETECT
Q129
OVER CURRENT
DETECT
Q281
DC DETECT
Q063, 064
BIAS
Q117, 119
HOLD
Q045, 046
THERMAL DETECT
Q291, 292
+
FINAL DRIVE
Q121, 123
PROTECT
Q047
+
HOLD
Q282
+
TH101, 102
+
R-CH
R-CH
CASCADE
Q111
PRE DRIVE
Q101, 103
MUTING
Q181
+
MUTING
CONTROL
Q183
CURRENT
MIRROR
Q105, 107
BOOST
CONTROL
Q674 – 677
FREQUENCY
CONTROL
Q671 – 673
1
13
6
16
BASS BOOST ENHANCER
IC671
INPUT SELECT,
ELECTRICAL VOLUME
IC601
BBE CONTROL,
LOADING/TABLE
MOTOR DRIVE
IC672
BOOST1 –
BOOST4
FREQ1 –
FREQ3
INA
GIN
14
VREF
7
BBE
BBE
17
BASS
OUTA
6
PB-OUT
18
OUT
2
DATA
3
CLK
LCK
MUTE
POWER
POWER
HOLD
CLK
S-OUT
DATA
4
LCK
13
CONT
8 – 11
5 – 7
14 LM-L
LM-L
15 LM-R
LM-R
12 TM-L
TM-L
13 TM-R
21 B-IN
19 A-IN
23 C-IN
2 PB1P
28 REC1O
7 VOL-IN
TM-R
–27V
REGULATOR
Q041, 043
+9V
REGULATOR
IC001
(AC IN)
POWER TRANSFORMER
(SUB)
PT011
POWER TRANSFORMER
(MAIN)
PT002
RECT
D010
D010
+VL
TO
POWER AMP
BLOCK
–VL
VSS
RY001
VF1
TO
FLUORESCENT
INDICATOR TUBE
VF2
RECT
D041 – 044
+9V
REGULATOR
IC002
+4V
REGULATOR
IC003
–VH
+6.4V (CD)
CD-VM
VDD
VM
D691 – 694
–VFL
V-STBY
VH1
VH2
RECT
D019, 020
VL1
VL2
RESET SWITCH
Q901
RELAY DRIVE
Q022
VCC
+4V
+3.3V (CD)
B+ SWITCH
Q023, 024
RECT
D091, 092
+4V
REGULATOR
IC501
+3.3V
P-DOWN
RESET
D504
RESET SIGNAL
GENERATOR
IC502
D697
R-CH
CD
A
SPEANA
H
TU
E
PB, REC
PB
REC
F
LM-L, LM-R,
TM-L, TM-R
TM-L, TM-R
D
DATA, CLK,
S-OUT, LCK
S-OUT, LCK
G
RESET,
P-DOWN
P-DOWN
C
MUTE, POWER,
HOLD
B
• SIGNAL PATH
: TUNER
: TAPE PLAY (DECK-A)
: TAPE REC
: AUX IN
• R-ch is omitted due to same as L-ch.
: CD
(Page 18)
(Page 18)
(Page 19)
(Page 18)
(Page 19)
(Page 19)
(Page 18)
(Page 19)
J602
R
VIDEO/AUX
L
+1.8V (MP3)
+1.8V
REGULATOR
IC803
6-3.
BLOCK DIAGRAM – AMP/POWER SUPPLY Section –
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