Sony CX-JN101 / JAX-N101 Service Manual ▷ View online
21
21
CX-JN101
CX-JN101
CD SECTION
Note:
1. CD Block is basically designed to operate without adjustment.
Therefore, 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
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.
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
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
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.
Checking Location: BD board
RF signal waveform
VOLT/DIV : 200mV
TIME/DIV : 500ns
TIME/DIV : 500ns
level : 1.3
±
0.3Vp-p
TP (VC)
TP (RF)
TP (FE)
IC721
– BD Board (Conductor side) –
22
22
CX-JN101
CX-JN101
SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAM – CD Section –
(Page 24)
(Page 24)
(Page 24)
8
7
9
10
80
79
70 LIMIT SW
20
TDO
18
10
VO3 (+)
FOIN
20
TIN
3
SPIN
7
MUTE
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
SLED/SPINDLE MOTOR DRIVE,
FOCUS/TRACKING COIL DRIVE
IC722
49
48
X701
16.9344MHz
S701
(LIMIT IN)
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
57
ASDFIN
56
ASDACK
55
ASLRCK
54
16MOUT
53
EFLG
50
FSX/16MIN
64
DO
63
DI
62
CL
74
CD NUMBER SENS
20
CD BUSY
9
RIN
LM-R
11
RESET
1
SYS-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
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
MUTE,
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 PLAY
• R-ch is omitted due to same as L-ch.
DISC TRAY
ADDRESS DETECT
(Page 24)
23
23
CX-JN101
CX-JN101
7-2. BLOCK DIAGRAM – TUNER/TAPE/PANEL Section –
(Page 24)
(Page 24)
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 (FM/AM)
: TAPE PLAY (DECK-A)
: TAPE PLAY (DECK-B)
: 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 TUNER MUTE
19 TU-SIG/MIC
3 TU/EVOL DO
4 CLK
5 LCK
SOL A
• R-ch is omitted due to same as L-ch.
F
PB,
REC
G
DATA, CLK,
S-OUT, LCK
E
TU
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
PLL-CE
TUNED
STEREO
TU-MUTE
DATA
IFC
CLK
DATA
CLK
DATA
S-OUT
LCK
CLK
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
29 RMC
REMOTE CONTROL
RECEIVER
IC801
S301 – 315,
S319 – 323
(FRONT PANEL KEY)
78 VOL B
77 VOL A
ROTARY
ENCODER
S801
PB SWITCH
Q303
B+ SWITCH
Q607
FL902
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 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
MIC
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
SYSTEM CONTROLLER
IC901 (2/2)
FM 75
Ω
(COAXIAL)
(Page 24)
(Page 24)
24
24
CX-JN101
CX-JN101
7-3. BLOCK DIAGRAM – AMP/POWER SUPPLY Section –
J221
VH1, 2 (AC)
R-CH
PHONES
SPEAKER
+
–
–
–
+
R
L
J203
R-CH
R-CH
–VL
–VP
+VP
–VH
OVER LOAD
DETECT
Q129
OUTPUT LEVEL
DETECT
Q235
OVER CURRENT
DETECT
Q281
DC DETECT
Q063, 064
BIAS
Q117, 119
HOLD
Q045, 046
AC DETECT
D067, 068
THERMAL DETECT
Q291, 292
+
FINAL DRIVE
Q121, 123
CASCADE
Q109, 111
SWITCHING
Q232
SWITCHING
Q231
PROTECT
Q047
VH1, 2 (AC)
+
R-CH
R-CH
+
+
HOLD
Q282
+
TH101, 102
+
R-CH
R-CH
PRE DRIVE
Q101, 103
MUTING
Q181
+
MUTING
CONTROL
Q183
CURRENT
MIRROR
Q105, 107
+VL
+VH
OUTPUT LEVEL
DETECT
Q233, 234
INPUT SELECT,
ELECTRICAL VOLUME
IC601
LOADING/TABLE
MOTOR DRIVE
IC672
6
PB-OUT
18
OUT
2
DATA
3
CLK
LCK
MUTE
POWER
POWER
HOLD
CLK
S-OUT
DATA
4
LCK
13
CONT
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)
PT002 (E, SP)
PT011 (AUS)
POWER TRANSFORMER
(MAIN)
PT002 (AUS)
PT004 (E, SP)
RECT
D015 – 018
RECT
D019 – 022
+VL
TO
POWER AMP
BLOCK
–VL
VSS
RY001
VL1
VL2
VF1
TO
FLUORESCENT
INDICATOR TUBE
VF2
RECT
D009
D009
+9V
REGULATOR
IC002
+4V
REGULATOR
IC003
+VH
–VH
+6.4V (CD)
CD-VM
VDD
VM
D691 – 694
–VFL
V-STBY
VH1
VH2
VM1
VM2
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
STANDBY
SWITCH
Q902, 903
D697
R-CH
CD
A
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 (FM/AM)
: TAPE PLAY (DECK-A)
: REC
: AUX IN
• R-ch is omitted due to same as L-ch.
: CD PLAY
MIC
H
J602
R
VIDEO/AUX
L
VDD (STBY)
+
MIC AMP
IC401 (1/2)
MIC AMP
IC401 (2/2)
VR401
J401
MIC LEVEL
AGC
Q401
MIC
MIC MIXING
D402
: MIC INPUT
• Abbreviation
AUS : Australian model
SP
SP
: Singapore model
110 – 120V
220 – 240V
(E, SP)
(AUS)
VOLTAGE SELECTOR
S001
(Page 22)
(Page 23)
(Page 22)
(Page 23)
(Page 23)
(Page 22)
(Page 23)
(Page 22)
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