panasonic SA AK2 10E, SA AK2 10EB, SA AK2 10EG Service Manual

Service Manual
TOP NEXT
ORDER NO. MD0302054C2
CD Stereo System
l
SA-AK210E SA-AK210EB SA-AK210EG
Colour
(S)... Silver Type
TAPE SECTION :
SG-2W MECHANISM SERIES
Specifications
AMPLIFIER SECTION
RMS Power output
10% Total harmonic distortion
1kHz, both channels driven
(Low channel) 55 W per channel (6Ω )
10kHz, both channels driven
(High channel) 55 W per channel (6Ω )
Total Bi-Amp power 110 W per channel
Input sensitivity
AUX 250 mV
Input Impedance
AUX 13.3 kΩ
FM TUNER SECTION
Frequency range 87.50 - 108.00 MHz (50 kHz steps)
Sensitivity 1.8μ V (IHF)
S/ N 26 dB 1.5μ V
Antenna terminal(s) 75Ω (unbalanced)
AM TUNER SECTION
Frequency range 522 - 1629 kHz (9 kHz steps)
Sensitivity
S/ N 20 dB (at 999 kHz) 560μ V/ m
CASSETTE DECK SECTION
Track system 4 track, 2 channel
Heads
Record/ playback Solid permalloy head
Erasure Double gap ferrite head
Motor DC servo motor
Recording system AC bias 100 kHz
Erasing system AC erase 100 kHz
Tape speed 4.8 cm/ s
Overall frequency response (+ 3 dB, -6 dB at DECK OUT)
NORMAL (TYPE I) 35 Hz - 14 kHz
S/ N 50 dB (A weighted)
Wow and flutter 0.18% (WRMS)
Fast forward and rewind time Approx. 120 seconds with
C-60 cassette tape
CD SECTION
Sampling frequency 44.1 kHz
Decording 16 bit linear
Pickup
Beam source/ wavelength Semiconductor laser/ 780 nm
Number of channels Stereo
Frequency response 20 Hz - 20 kHz (+ 1, -2 dB)
Wow and flutter Below measurable limit
Digital filter 8 fs
D/ A converter MASH (1 bit DAC)
http://servis-manual.com/
SCHEMATIC DIAGRAM -1
OPTICAL PICKUP CIRCUIT
LASER DIODE
6 8
11
C
12 10
5
1
4 9
2
2
3
3
4
C
GND
VCC
BIN
AIN
NBOUT
NAOUT
VREF
C
GND
C
8
7
6
5
: +B SIGNAL LINE
: CD-DA SIGNAL LINE
CD SERVO CIRCUIT
R701
Q701
R750
4.7
C713
0.1
C750
0.1
4.7 C701
6.3V33
Q701
B1ADCF000001
LASER POWER DRIVE
C714
6.3V100
1 2 3 4
PDE
FBAL
C712
0.1
C711
0.1
R708
22K
29
52262172081991810171116121513 14
LD
RF
PDF
VCC
TBAL
VREF
2728
C749
2200P
R707
39K
PDB
PDA
FEN
FEOUT
C747 180P
R744 120K
R7061KR704
LPD
IC701
AN8885SBE1
SERVO AMP
TEN
TEOUT
NC
23242526
C710 120P
R702
R705
10K
150K
C742
0.027
1K
RFIN
NC
C702
C703
6.3V100
C704
0.1
C706
2700P
C707
0.1
0.027
CEA
BDO
GND
CSBRT
ENV
LDON
OFTR
PDOWN
/RFDET
NC
1
1
VCC
2
2
PDF
3
3
PDE
4
4
LD
5
5
LD GND
6
6 7 8 9
10 11 12 13 14 15 16
CN701
GND
7
NB
8
GND
9
NA
10
VREF
11
LPD
12
GND
13
T-
14
T+
15
F-
16
F+
C751
0.1
C
C735
0.1
C734
10V220
33
29
GND
22 23 24
NC
208199181017
D4-
D3-
D3+
D4+
21
NC
PVCC2
PGND2
VCC
VREF
25 26
IN4
27 28161315
NC
IN3
RSTIN
IC703
D1+
NC
D1-
1112
35
30
IN1NCPC2NCIN2
NC
7 12
R735
D2+
D2-
14
36
C737
0.1
GND
PGND1
PVCC1
M
M702
SP MOTOR
38
C736
0.1
37
M
M701
TRV MOTOR
IC703
AN8739SBTE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVE
/RST
3456
R725
390
100
R724
C715
18K
2700P
R715
1K
R736
100
R727
3.9K
C752
1000P
R723
6.8K
C738
0.01
R729
3.9K R749
4.7K
C739
1500P
R728
3.9K
R731
6.8K
SCHEMATIC DIAGRAM - 2
: +B SIGNAL LINE : CD SIGNAL LINE
CD SERVO CIRCUIT
: CD-DA SIGNAL LINE
R721
100
C731
6.3V220 C730
0.1
R717
1K
R718
1K
C725
1000P
C726
1000P
C727 50V1
C728 50V1
20
18
19
23
22
21
C723
10V220
C724
0.1
X701
RSXZ16M9M01T
C722
10P
C717
0.1
R711
82K
C716 820P
C744
5600P
R709
47K
R714
C721
10P
C718
0.22
C754 470P
26
24
25
27
72
69
71
70
RESY
/TEST
IOSEL
IC702
DIGITAL FILTER/
FBAL
TBAL
FETERFENV
32
29
30
31
73
AVDD1
VREF
28
74
OUTL
FOD
27
AVSS1
TRD
75
26
OUTR
KICK
62
63
61
FCLK
BYTCK
40
LDON
39
/CLDCK
/RFDET
BDO
38
60
VDD
59
X2 OUT
58
X1 IN VSS
0
R712
220
R741
47K
R742
220K
57
SBCK
56
SUBC
55
VCOF2
54
PCK
53
EFM
52
AVSS2
51
AVDD2
50
VCOF
49
PLLF
48
DSLF
47
DRF
46
IREF
45
ARF
44
WVEL
43 42
DSLF2 PLLF2
41
42
68
66
64
65
67
CRC
CLVS
FLAG
IPFLAG
DEMPH
MN662790RSC
SERVO PROCESSOR
DIGITAL SIGNAL PROCESSOR/
D/A CONVERTER
VDET
OFT
TRCRS
33
34
36
35
37
80
78
79
76
77
SSEL
RSEL
MSEL
PSEL
IOVDD
TVD
PC
ECM
ECS
TRV
22
21
25
24
23
C732
6.3V220
BCLK LRCK
SRDATA
DVDD1 DVSS1
MCLK
MDATA
MLD
SENSE /FLOCK /TLOCK
BLKCK
SQCK SUBQ
DMUTE
STAT /RST
SMCK
CSEL
C733
0.1
17
1 2 3 4 5 6
TX
7 8 9
10
11
12
13 14 15 16 17 18 19 20
C745
1000P
C753
470P
C743
0.1
8
6
7
4
11 10 9
R753
100
2
5
LCH OUT
A.GND
RCH OUT
+3.3V
D.GND
LD SW
+7.5V
P.GND
MCLK
MDATA
SPEED
12
BLKCK
SQCK SUBQ
RESET
MLD
STAT
/RST
SW
TX
3
19 18 17 16 15 14 13 12
11
10
9 8 7 6 5 4 3 2 1
CN702
TO MAIN CIRCUIT (CN310) ON SCHEMATIC DIAGRAM-5
TJ702
S701
RESET SW
15
16
1
FM EXT
ANT
75 OHM
GND
AM LOOP ANT
AM EXT
JK101
ANT
SCHEMATIC DIAGRAM - 3
: +B SIGNAL LINE : FM/AM SIGNAL LINE
TUNER/MAIN CIRCUIT
TUNER PACK Z120 (ENV17290G1Y)
22P
15P
1
1
2
2
3
4
C110
D101
0.01
R152
47uH
3
4
5
AM ANT COIL
2
1
Z101
RLA2Z007-T
R110
1K
C107
100P
C132
B0BC5R00009
R114
5.6K
C133
27P
X103
0
C134
27P
100K
C136
1000P
0.047
C130
RSXC7M20S05T
8P
1P
HVM27
18P
LA1833NMNTLM
6.3V100
100K
8P
33K
0.022
C114
C109
1000P
50V3.3
IC101
FM/AM IF AMP
DET/AM OSC MIX/
FM MPX
3
AM OSC COIL
8
7
9
R112
100K
C125
16V22
C112
0.01
VSS
XOUT
PLL FREQUENCY SYNTHESIZER
CEDICL
XIN
1 2 3 4
R138
3.3K
R130
10K
1K
R137
CE
1K
R136
PLLDA
50V4.7
AOUT
G
8P
C108
10K
R113
C111
560
R115
17181920
LC72131MDTRM
22
D
2SK238
S
R111
390
AIN
R116
7P
0.022
2.7K
HVM27
47P
4 5 6
82
R151
1K
C113
PD
VDD
FMIN
IC102
LW
AM
DO
51661571481391210
470
1K
R134
R135
DO/ST
PLLCLK
100
3P
1000P
AMIN
SDC
: FM SIGNAL LINE : FM OSC SIGNAL LINE
HVM27
HVM27
33K
33K
8P
G
100K
R119
R118
12K
3.3K
C127
G2BAE0000003
R117
68K
11
IFIN
MONO
STRQ
FM
D
S
16V22
2
1
4P
Z102
330
2SK360
C126
4P
1P
22P
10K
8P
33P
10K
OSC OUT
FM IF IN
1 2 3 4
16V1
3
5
R128
82
2SC2620
1uH
220P
1.5M
220
0.022
2SC2996
2P
18P
1.2K
Q110
2SC3311ARTA
DC DETECT SWITCH
47K
R120
2324
2122
AFC
OSC
AM RF IN
AM MIX OUT
REG
AM IF IN
0.01
C106
4
6
C129
R129
27K
C124
100P
: AM SIGNAL LINE : AM OSC SIGNAL LINE
2SC2058SPTA
IFT
10K
100uF 16V
6.3V100
150
0.022
330
15P
470K
2SC2996
R121
22K
C119 560P
C115
50V4.7
C131
C139
50V4.7
22K
R143
4.7K
R102
C116
0.033
AGC
AM OUT
PILOT IN
DET OUT
ST
GND
SD
5206197188179
C147
1000P
C148
0.01
1K
R126
FM DET
33
R124
470
R125
SD
DO/ST
Q101,Q102
FM IF AMP
CF201
J0B1075A0086
1
7
2
6
0.01
C102
C101
8
R139
22K
C120
16V10
0.01
C138
100P
68K
R123
16101511141213
MPX IN
PILOT OUT
VCC
STRQ
R122
X102
470
R127
RLFDFT22DD
0.1
C149
10K
R132
3
C104
1000P
470
R105
R103
16V100
KRA102MTA
22K
R140
C137
3300P
0.01
C118
RCH
IC101
FM/AM
C122
2.7K
C103
0.01
C105
R106
1000P
470K
Q101
100
Q106
TUNER 15V
SUPPLY SWITCH
Q106
Q110
R142
0.01
C117
6.8K
C142
R141
50V1
6.8K
C141 50V1
R145 100K
C143
LCH
MONO
50V1
C121
50V0.47
R144
120
R131
120
1K
R133
DET_OUT
PLLCLK
330
R107
R108 470K
Q102
CF202
J0B10750077
1
2
100K
R146
C144
4700
50V1
C123
15V
DO/ST
SD
+7.5V
TGND
RCH
CE
LCH PLLDA DO/ST
3
4700
TO MAIN CIRCUIT (2A) ON SCHEMATIC DIAGRAM-6
1A
TO MAIN CIRCUIT (2B) ON SCHEMATIC DIAGRAM-6
1B
R109
R104
330
10K
TO DECK CIRCUIT (CN1001) ON SCHEMATIC DIAGRAM-11
AUX
TO CD LOADING CIRCUIT (CN1) ON SCHEMATIC DIAGRAM-13
SCHEMATIC DIAGRAM - 4
: +B SIGNAL LINE : -B SIGNAL LINE
MAIN CIRCUIT
CR02
1
MOTOR
2
BP1
3
DECK1_H
4
DMT
5
CN304
RCH
LCH
JK300
CN309
MOGND
6
MOT10V
7
REC_H
8
+15V
9
RECR
10
RECL
11
AGND
12
PBR
13
PBL
14
CHG_CW
14
CHG_HALF
13
8V
12
CHG_CCW
11
CLAMP
10
OPEN
9
SW1
8
PGND
7
SW2
6
DGND
5
5V
4
POSITION
3
BOTTOMSW
2
PLUNGER
1
C331
0.22
C332
C326
0.47
RL1N4003S-P
C253
1000P
R201
10K
L301
J0JBC0000019
680
C201
680
C401
R401
10K
0.22
22K
R344
12K
R345
220
R348 R346
22K 12K
R347
D324
Q324
KTA12710YTA
CD MOTOR SUPPLY SWITCH
Q324
100P
C202
R202
100P
C402
R402
47K
10K
R341
R340
R342
Q323
1K
R349
10K
R350
KRC102STA
PLUNGER MOTOR
SUPPLY CONTROL SWITCH
: CD SIGNAL LINE
3.3K
3.3K
47K
10K
R343
CHG_PLGR
Q323
MOT10V
REC_H
+15V
REC_R
REC_L
PBR
PBL
AUXR
AUXL
VREF+
CHG_CW
CHG_HALF
CD8V
CHG_CCW
CHG_AD1 CHG_AD2
SW1
SW2
SW5V
MOT10V
+9.0V
-9.0V
LO_L
LO_R
HI_L
HI_R
D307-D308
MA2J72800L
: MAIN SIGNAL LINE: AUX SIGNAL LINE : PLAYBACK SIGNAL LINE : RECORD SIGNAL LINE
R352
220
C318
16V33
+9.0V
-9.0V
R443
3.3K
R243
3.3K
R444
1.8K
R244
1.8K
Q308
D307
D308
R317
CD3.3V
17 16 15 14 13 12 11 10
BP1
MOTOR
PL_GND
C451
Q411
0.033
220k
R472
R473
220
12K
R471
Q404
R439
4.7K
C435
50V0.68
Q204
R239
4.7K
C235
50V0.68
Q405
R442
5.6K
C434 50V1
Q205
R242
5.6K
C234 50V1
0.01
10K
C316
R313
R315
2.2K
Q309
C315
330
10V33
R316
3.9K
TO PANEL CIRCUIT (CP601) ON SCHEMATIC DIAGRAM-9
DMT
DECK1_H
RDS_DET
DET_OUT
R353
220
Q211
R271
12K
R437
18K
C430 8200
R438 220K
C431
1500P
R237
18K
C230 8200
R238 220K
C231
1500P
C433
8200P
R440
4.7K
KTC3875GRTA
12K
R441
C233
8200P R240
4.7K
12K
R241
R312
R311
12
15
100
R314
Q310
SW5V
MIC
+9V
SPEANA
MIC GND
SPEA
MIC
+9V
C319
16V33
220K
R272
R436
18K
Q204, Q404
KTC3875GRTA
LPF FREQ AMP
SWITCH
R236
18K
C432
8200P
Q205, Q405
HPF FREQ AMP
SWITCH
C232
8200P
RL1N4003S-P
/CD
C251
0.033
R273 220K
D309
REC_H
REC_H
HPL
HPR
HPGND
C452
0.033
C252
0.033
KTC3875GRTA
KTC3875GRTA
CD8V
CN303
24689 7 5 3 1
/CD
MUTE_A
MUTE_H
/CD
MUTE_A
MUTE_H
R474
1.5K
LHPF
R274
1.5K
RHPF
Q211
RHP FILTER
(HEADPHONE)
Q411
LHP FILTER
(HEADPHONE)
R454
220
Q308
KTA12710YTA
CURRENT CONTROL
SWITCH
Q309
KTC3199GRTA
VOLTAGE STABILISER
CD3.3V
Q310
KRA110MTA
CD ON/OFF
SUPPLY SWITCH
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