Panasoic SC AK320LB S Service Manual
ORDEM DCS - JUN2004 - 002 - MS
Manual de Serviço
CD Stereo System
SC-AK320LB-S
Tape:
RD-JMD051-Z
CD:
RD-DAC024-Z (Mecanismo s/ Unid. Óptica)
RD-DAU061-PM (Unid. Óptica montada c/ PCI do Servo)
RAF0152A-S (somente Unid. Óptica)
Especificações Técnicas
n AMPLIFICADOR
Potência de saída:
RMS (THD 10%, ) ...................................................... BI-AMP Total 300 W
High (10 kHz) 75Wx2/6Ω
Low (1 kHz) 75Wx2/6Ω
PMPO ............................................................................................... 3.300 W
Entrada AUX (tomada RCA) ........................ Sensibilidade 250mV , 13,3 kΩ
Entrada MIC (tomada fone) .................................. Sensibilidade 0,7mV , 680Ω
n RÁDIO
Faixa de freqüência .................................................... FM - 87,5 a 108,0 MHz
AM - 520 a 1710 kHz
T erminal de antena ............................................................................ FM - 75Ω
AM - Antena LOOP
Relógio ................................................................................... AM/PM - 12 h
n TOCA FITAS
Mecanismo .................................................................................Unidirecional
Sistema de trilhas ................................................... 4 pistas, 2 canais estéreo
Motor ...................................................................................... Servo motor DC
Sistema de gravação ............................................................ AC bias 100 kHz
Sistema de apagamento ..................................................... AC erase 100 kHz
Velocidade da Fita ........................................................................ 4,8 cm/s
Resposta em freqüência .................................... 35 Hz a 14 kHz (+3, -6dB)
Relação sinal/ruído ...................................................... 50dB (balanceado)
Wow & Flutter ........................................................................ 0,18% (WRMS)
n CAIXAS ACÚSTICAS
• SB-AK320 (frontal)
Tipo ................................................... BASS REFLEX - 3 vias - 3 alto-falantes
Woofer .................................................................................. 16 cm tipo cone
Tweeter ................................................................................. 6 cm tipo cone
Super Tweeter ............................................................ 2,5 cm - tipo piezo
Impedância (High / Low) ......................................................................... 6Ω
Freqüência de Cross Over ................................................ 2,6 kHz / 10 kHz
Dimensões (L x A x P) ................................................ 241 x 360 x 239 mm
Peso ................................................................................................... 3,8 Kg
(SB-AK320 - Veja o Manual de Serviço na parte final deste manual)
n GERAL
Alimentação ........................................................... CA 127V / 220V, 60 Hz
Consumo..............................................................................................225W
Modo Stand by ...................................................................................... 0,85W
Dimensões(LxAxC).......................................................250 x 330 x 366 mm
Peso.....................................................................................................7,5 kg
Cor........................................................................................................... Prata
n CD
Freqüência de Amostragem ........................................................... 44,1 kHz
Decodificação ......................................................................... 16 bit linear
Laser ......................................................................... Semicondutor 780 nm
Resposta em freqüência ................................... 20 Hz a 20 kHz, (+1, -2dB)
Wow & Flutter ..................................................... abaixo do limite mensurável
Conversor D/A .................................................................. MASH (1 bit DAC)
Frequência de amostragem (MP3)........................32 kHz, 44.1 kHz, 48 kHz
As especificações estão sujeitas a alterações sem prévio aviso.
Peso e dimensões são aproximadas.
© 2004 Panasonic da Amazônia S.A.
Divisão CS
Setor de Apoio Técnico
SA-AK320LB-S
17.1. (A) CIRCUITO SERVO DO CD
DIAGRAMA ESQUEMÁTICO - 1
CIRCUITO DA
LEITURA ÓTICA
: +B SIGNAL LINE
CIRCUITO SERVO DO CD
: CD-DA SIGNAL LINE
C3 0.22
VR1
R701
Q701
R750
5.6
4.7
C701
6.3V33
C714
6.3V100
1234
LPD
A
28
1
1
VCC
2
2
F
3
3
E
4
4
12
E
11
VREF
10
A
9
NC
8
LPD
7
GND
GND
VCC
LDG
1
C2 0.22
2
F
C1
3
B
LD
0.47
4
5
6
5
6
7
8
9
10
11
12
13
14
15
16
CN701
10
11
12
13
14
15
16
5
6
7
8
9
LD
LD GND
GND
B
GND
A
VREF
LPD
GND
T-
T+
F-
F+
C751
0.1
C713
C750
0.1
0.1
C770
LD
VCC
3132
C712
0.1
R738
6.8K
C711
0.1
R737
6.8K
Q701
0.1
B1ADCF000001
LASER POWER DRIVE
29
52662572482392210211120121913 14
EQSW
RFOUT
AN22004A-NF
F
DCB
RF VOLT
C702 0.47
C705 0.1
RFIN
CAGC
IC701
SERVO AMP
TBAL
E
27282930
41
30
R742 10K R743 4.7K
C706 10
C707 0.039
CEA
ARF
FBAL
39
GCTL
C747
470P
R744
39K
34
R706
R708 0
(ENV) 3TOUT
FEOUT
1K
R707 0
DCDET
FEN
R729 1.5K
C703 6.3V100
C704 0.1K
C716 680P
BDO
OFTR
OFTCONT
VREF
TEN
TEOUT
C710
470P
R702
R705
4.7K
39K
C749
3900P
32
R704
42
1K
15 16
/RFDET
EQ8ST
18 17
C742
0.047
40
LDON
GND
33
R728 18K
C735
0.1
C734
10V220
R727
1.5K
21
NC
VCC
22
VREF
23
IN4
24 25 26
IN3
RSTIN
NC
D3+
171615
D4-
NC
D4+
PGND2
GND
PVCC2
14
D3-
R749
18K
IC703
R736
D1+
D1-
920101911181213
SP MOTOR
TRV MOTOR
NC
35
M702
38
M701
IN1NCPC2NCIN2
7
8
NC
R735
100
D2+
D2-
C737 0.1
36
M
C736 0.1
37
M
GND
PGND1
PVCC1
/RST
12
3456
C738
0.047
R725
R723
560
5.6K
10
C715
0.22
C752
0.01
R731
22K
R739
C739
1K
0.01
IC703
AN8739SBTE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVE
R715
2.7K
50
DIAGRAMA ESQUEMÁTICO - 2
: +B SIGNAL LINE : CD SIGNAL LINE
CIRCUITO SERVO DO CD
SA-AK320LB-S
: CD-DA SIGNAL LINE
R711
82K
C729 0.1
C717
0.1
R709
100K
C757
6.3V100
C758
0.1
C755
0.1
40
IREF
39
ARF
38
LDON
37
BDO
36
NRFDET
OFT
35
34
RFENV
TE
33
FE
32
31
FBAL
30
TBAL
29
IOVDD1
FOM
28
27
FOP
26
TRM
25
TRP
24
TRVM(PC)
23
TRVP
22
SPOUT
21
DVDD2
R721
100
C744
C741
1000P
C718
0.015
0.082
R712
820
41
43
444546
42
DSLF
ADPVCC
(DRF)RFSW
181920
A3A2A1A0A9A4A5A6A7A8CASD3D2
48
49
47
PLLF
OUTL
AVSS 2
PLLFO
AVDD2
MN6627934CH
SERVO PROCESSOR
DIGITAL SIGNAL PROCESSOR/
DIGITAL FILTER/
D/A CONVERTER
14
1213
15
16
17
50
AVSS 1
11
C740
52
51
OUTR
AVDD1
IC702
A8A7A6A5A4A9A0A1A2A3DVSS2
10
0.1
DVSS3
(NCAS1)
A10
9
C730
53
DVDD3
NCAS0
8
A10
0.1
54
7
25
55
FLAG
TMOD2
D3
D2
6
R717
1K
R718
1K
C731
6.3V220
R761 10K
R762 10K
R763 10K
56
57
58
EXT0
EXT2
EXT1
NRAS
4
3
5
RASWED1
59
2
C723
6.3V220
C724
0.1
60
TX
IOVDD2
DRVDD
D0D1NEW
1
D0
MCLK
MDATA
MLD
BLKCK
PWMSEL
SMCK
SBCK
STAT
NRST
SPPOL
PMCK
DQSY
TXTD
TXTCK
NTEST
OUT X2
IN X1
DVSS1
DVDD1
MON
C725
1000P
C726
1000P
24
22
C727
50V1
C728
50V1
23
R760
11 10 9
12
61
62
63
64
65
66
67
R753 10
68
69
70
71
72
73
74
75
76
77
78
79
80
100
8
7
C722
12P
R720
1M
X701
R714
C721
220
12P
C753
470P
C780
0.1
RSXB16M9J02T
16
LCH OUT
19
A.GND
18
RCH OUT
17
+3.3V
16
D.GND
15
LD SW
14
TX
13
+7.5V
P.GND
MCLK
MDATA
MLD
BLKCK
STAT
/RST
REST SW
12
TO
11
MAIN
10
CIRCUIT
(CN310) ON
9
SCHEMA
8
NC
7
6
NC
5
NC
4
3
2
1
CN702
13
TIC
DIAGRAM-5
C743
0.1
C733
0.1
D2
D3
242526
D3
D2
VSS
VCC
1234
/CAS
WE
D1
D0
D1
D0
A9
CAS
21
2223
20
A9
NC
/OE
IC704
C3ABMB000027
16M DRAM
NC
NC
RAS
6197
5
RAS
WE
A8
A7
18
A8
A7
A0
A10
81791610
A10
A0
A1
A6
A6
A1
A5
A5
A2
111412
A2
A4
15
A4
VSS
A3
VCC
13
C781
0.1
A3
C748
0.1
C746
0.1
C782
0.1
REST SW
15
S701
1
51
SA-AK320LB-S
17.2. (B) CIRCUITO PRINCIPAL/TUNER
FM EXT
ANT
75 OHM
GND
AM LOOP ANT
AM EXT
ANT
JK101
DIAGRAMA ESQUEMÁTICO - 3
CIRCUITO PRINCIPAL/TUNER
TUNER PACK CIRCUIT
C108
R113
10K
C111
50V4.7
4.7P
8P
220
R115
560
R116
1K
100K
2.2P
4
5
6
R111
C125
16V22
1.2U
180P
390
1
2
3
4
1
2
3
4
5
AM ANT COIL
2
1
Z101
RLA2Z007-T
R110
1K
D101
B0BC5R000009
R114
5.6K
C133
27P
5.6P 2SK544
1000P
100K
100K
2.7K
2.2P
3
AM OSC COIL
8
7
9
R112
100K
C107
0.047
IC101
LA1833NMNTLM
FM/AM IF AMP
DET/AM OSC MIX/
FM MPX
C130
C132
6.3V100
1000P
C112
0.01
560K
R151
2SC2786M
680K
C113
82
18P
3.3P
390
2SC1675l1l2
2.2P
2SC2787FL1TA
C136
1000P
1000P
: +B SIGNAL LINE
: FM/AM SIGNAL LINE
0.47U
390
1000P
390
5.6P
680K
R119
R118
3.3K
3.3K
C127
16V22
2
1
Z102
G2BAE0000003
R117
R129
47K
27K
C124
100P
C114
50V3.3
7
6
8
C126
1
CF201
RLFFETWND01M
1
2
C101
0.01
C109
1000P
2324
OSC
OSC OUT
AM MIX OUT
FM IF IN
1234
C106
0.01
3
5
6
R128
82
: FM SIGNAL LINE
: FM OSC SIGNAL LINE
3
C104
1000P
R105
470
R103
C102
270
16V10
C119
680P
R120
47K
C115
2122
AFC
AGC
AM RF IN
IC101
REG
GND
AM IF IN
5206197188179
C147
1000P
C148
0.01
4
C129
6.3V100
C103
0.01
R106
470K
50V4.7
C116
0.033
AM OUT
SD
1K
R126
R107
330
RLFFETWND01M
R101
0
Q101
2SC2058SPTA
R121
22K
R143
22K
C139
50V4.7
R102
150P
C131
PILOT IN
DET OUT
FM DET
ST
470
R125
R124
X102
C149
0.1
R104
1K
CF202
1
3
2
Q101
FM IF AMP
C120
16V10
C138
0.01
0.01
C118
68K
4.7K
R123
C137
3300P
16101511141213
RCH
MPX IN
PILOT OUT
STRQ
FM/AM
VCC
R127
R132
10K
C122
470
R122
33
RLFDFT22DD
: AM SIGNAL LINE
: AM OSC SIGNAL LINE
Q106
Q106
KRA102MTA
TUNER 15V
SUPPLY SWITCH
R146
100K
C121
1K
R142
6.8K
R141
6.8K
R145
100K
6800P
R144
R131
C143
120
120
C123
50V1
C144
6800P
LCH
MONO
50V1
2.7K
C117
0.01
C142
50V1
C141
50V1
50V0.47
R133
C110
0.01
R152
0
X103
RSXC7M20S05T
C134
27P
17181920
VSS
XOUT
AOUT
LC72131MDTRM
PLL FREQUENCY SYNTHESIZER
DI
CE
XIN
1234
R138
3.3K
R136 1K
R137 1K
R130
10K
PLLDA
CE
PD
AIN
VDD
FMIN
IC102
LW
DO
CL
AM
51661571481391210
R135 1K
R134 470
DO/ST
PLLCLK
AMIN
SDC
MONO
STRQ
11
IFIN
TGND
TO
15V
MAIN
FM
DO/ST
SD
DO/ST
+7.5V
RCH
LCH
PLLDA
DO/ST
PLLCLK
SD
CE
CIRCUIT
(2A) ON
SCHEMATIC
DIAGRAM-8
1A
TO
MAIN
CIRCUIT
(2B) ON
SCHEMATIC
DIAGRAM-8
1B
52
17.3. (B) CIRCUITO PRINCIPAL
SA-AK320LB-S
TO
DECK
CIRCUIT
(CN1001) ON
SCHEMATIC
DIAGRAM-14
AUX
TO
CD LOADING
CIRCUIT
(CN1) ON
SCHEMATIC
DIAGRAM-11
DIAGRAMA ESQUEMÁTICO - 4
: +B SIGNAL LINE
: -B SIGNAL LINE
CIRCUITO PRINCIPAL
CR02
1
MOTOR
2
BP1
3
DECK1_H
4
DMT
5
MOGND
6
MOT+B
7
REC_H
8
+15V
9
RECINR
10
RECINL
11
AFGND
12
PBR
13
PBL
14
CN304
C442
C410
0.22
RCH
LCH
JK300
CN309
CHG_CW
14
CHG_HALF
13
CD8V
12
CHG_CCW
11
CLAMP
10
OPEN
9
CD_SW1
8
PGND
7
CD_SW2
6
DGND
5
5V
4
POSITION
3
BOTTOMSW
2
PLUNGER
1
0.22
L305
J0JBC0000019
Q308
D307
D308
D307-D308
B0ACCK000005
B0ACCK000005
R329
R201
10K
C201
680
C401
680
R401
10K
R344 22K
R345 12K
C326
0.47
R348 220
R346 22K
R347 12K
D324
CD MOTOR SUPPLY SWITCH
Q324
Q324
KTA12710YTA
C321
0.01
Q309
C320
R328
10V22
330
2.2K
R325
R327
R324
10K
1K
C202
100P
C402
100P
12
R326
C306
R202
3.3K
R402
3.3K
R396
R340
47K
10K
Q323
R349
1K
R350
10K
SUPPLY CONTROL SWITCH
R323
15
100
Q310
: PLAYBACK SIGNAL LINE
: RECORD SIGNAL LINE
MOT10V
REC
+15V
REC_R
REC_L
50V1
R395
KRC102STA
PLUNGER MOTOR
B0EAKM000117
C443
47K
0.1
D309
Q323
AUXR
AUXL
VREF+
R343
10K
CHG_CW
CHG_HLF
CD8V
CHG_CCW
CHG_AD1
CHG_AD2
CHG_SW1
CHG_SW2
SW5V
CHG_PLR
MOT10V
CD3.3V
CD8V
PBR
PBL
+9.0V
-9.0V
LO_L
LO_R
HI_L
HI_R
: AUX SIGNAL LINE
: MAIN SIGNAL LINE
/BP1
/DMT
DECK1_H
MTR
Q404
R439
4.7K
R443
3K
C435
50V0.68
Q204
R239
4.7K
R243
3K
C235
50V0.68
Q405
R442
5.6K
R444
1.2K
C434
50V1
Q205
R242
5.6K
R244
1.2K
/CD
SW5V
C234
50V1
Q308
KTA12710YTA
CURRENT CONTROL
SWITCH
TO
PANEL CIRCUIT
(CP601) ON
SCHEMATIC DIAGRAM-10
9
8
7654321
KEY3KEY3
KEY1KEY1
KEY2KEY2
D_GND
R440
R441
R240
R241
12K
4.7K
12K
4.7K
R437
C430
0.015
R438
220K
C431
820P
R237
C230
0.015
R238
220K
C231
820P
C233
8200P
SW5V
SSEQ_LED
SW5V
SSEQ_LED
R436
18K
18K
KTC3875GRTA
LPF FREQ AMP
R236
18K
18K
C432
C433
8200P
8200P
Q205, Q405
KTC3875GRTA
HPF FREQ AMP
SWITCH
C232
8200P
Q309
KTC3199GRTA
VOLTAGE STABILISER
CD3.3V
10
FL_CLKFL_CLK
FL_DOUTFL_DOUT
Q204, Q404
SWITCH
FL_CSFL_CS
FL_RSTFL_RST
17
161514131211
DGND
LED9VLED9V
EXP_CLK
EXP_DAT
EXP_CLK
EXP_DAT
R445
220
Q310
KRA110MTA
CD ON/OFF
SUPPLY SWITCH
CN303
53
Loading...