Panasonic SA-AK240E / SA-AK240EB / SA-AK240EG Service Manual ▷ View online
16 Block Diagram
CD SIGNAL
RCH
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
M7302
SPINDLE
MOTOR
M7301
TRAVERSE
MOTOR
M
M
T-
T+
F+
F-
PHOTO DETECTOR
OPTICAL PICKUP
SEMICONDUCTOR
LASER
Q7601
LASER
POWER DRIVE
FOCUS COIL
TRACKING
COIL
B
B
B
B
E
F
B
A
LPD
LD
C
D
B
A
B
F
E
MN6627954MA
SERVO PROCESSOR/
DIGITAL SIGNAL
PROCESSOR/
DIGITAL FILTER
D/A CONVERTER
IC7001
A, B, C, D, E, F
TO MAIN BLOCK
A
X7201
IC7002
BA5948FPE2
IN4
27
TRP
IN3
28
FOP
IN2
1
TRVP
IN1
3
SPOUT
PC2
2
VREF
26
D4-
18
D4+
17
D3-
16
D3+
15
D2+
14
D2-
13
D1+
12
D1-
11
PC1
4
PC
MUTE
[CH1]
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
[CH3]
[CH4]
[CH2]
[CH1]
MUTE
[CH2]
4 CH DRIVE
TRV+
TRV-
SP-
SP+
79
81
80
70
69
67 68
51 53 52
54
55
82
61
72
47
35~40
31
42
41
49
48
45
43
33
32
34
44
22
21
24
25
23
29
30
66
57
AVSS1
TX
SRVMON1
SRVMON0
NTEST
NRST
AVDD2
AVSS2
ARFFB
ARFF
LD
/RST
LPD
ARFF
PC
SPOUT
TRVP
TRP
FOP
ARFOUT
ARFDC
RFOUT
RFIN
CENV
CTRCRS
OSCIN
VREF
RFENV
PC
SPOUT
TRVP
TRP
FOP
LD
PD
A,B,C,D,E,F
NSRVMONON
NTEST2
MDATA
ARFIN
ARFF
BLKCK
IREF
DSLF
PLLF
PLLFO
TXTCK
(SBCK)
PRAMVDD33
PRAMVSS33
D0~D15
A0~A11
BA0,BA1
TXTD
DQSY
(SUBC)
(TXNCLDCK)
BLKCK
FLAG
65
71
20
18
83~92,94~99
1~7,11~15
16,17
NWE,NCAS
8,9
63
64
64
62
NRAS,SDRCK
(LRCK)
(BCLK)
(SRDATA)
EXT0
EXT2
EXT1
10,100
(DVDD2)
76
MCLK
MLD
STAT
(PMCK)
(SMCK)
X2
X1
AVDD1
OUTR
OUTL
58
IOVDD1
77
IOVDD2
27
DRVDD
93
DVDD1
28
DVDD2
76
DVSS1
26
DVSS2
78
DVSS3
60
59 56
46
50
CMOS
RF
AMPLIFIER
TIMING
GENERATOR
[GEN]
SUBCODE
INTERFACE
[DEMECC]
1Mbit
DRAM
REGULATOR
EFM DEMODUALTION
SYNC INTERPOLATION
CIRC ECC
CDROM ECC
[DEMECC]
MICRO COMPUTER
INTERFACE
[MCIF]
DSL/PLL/VCO
[DSLPLL]
SPINDLE
CPU
[DSV]
SERVO
CPU
[DSV]
CIRC RAM
BUS CONTROL UNIT
[BCU]
MP3/WMA
DECORDER
FS
CONVERTER
[FSC]
SERIAL OUTPUT
INTERFACE
[DAO]
DIGITAL FILTER
1bitDAC
PWM LOGIC
[DF, MASH]
ANALOG
LOWPASS
FILTER
DIGITAL
OUT
OUTPUT
PORT
A/D
CONVERTER
MLD
MCLK
MDATA
STAT
SA-AK240E / SA-AK240EB / SA-AK240EG
53
RCH
B
B
B
B
B
B
B
IC2601
C1BB00000962
FM/AM IF AMP,
DET/AM OSC,
MIX/FM MPX
SD
ST
SHIFT REGISTER LATCH
1
2
SWALLOW COUNTER
1/6,1/17,4 BITS
12 BITS PROGRAMMABLE
DIVIDER
REFERENCE
DIVIDER
C2B
I/F
PLLCLK
PLLDA
ST/DO
CE
X2603
ST/DO
SD
S-CURVE
REG
FM
IF
FM
DET
AM
OSC
LEVEL
DET
BUFFER
ALC
DECODER
STEREO
SWITCH
AM
DET
AM
IF
TUNING
DRIVE
AM/FM
IF
BUFFER
COMP
REG
VCO
AM
MIX
AM
RMAMP
AGC
PHASE
DET
PILOT
DET
FF
FF
FF
PILOT
CANCEL
(FM)
TUNER
15V
SUPPLY
SWITCH
Q2606
POWER ON
RESET
UNIVERSAL
COUNTER
UNLOCK
DETECTOR
PHASE DETECTOR
CHARGE PUMP
TO
CD DRIVE
BLOCK
PLL FREQUENCY
SYNTHESIZER
C1CB00001937
IC2602
X2602
11
15
18
17
16
19
10
7
6
9
8
4
CL
3
DI
2
CE
5
DO
13
12
14
20
1
L2602
D2602
L2601
23
24
22
21
20
19
18
17
16
14
15
13
1
2
3
4
6
5
7
8
9
10
11
12
FM
IF AMP
Q2601
A
CF2601
CF2602
FMANT
Z2620
8
(FM)
MIXER
OSC
BUFFER
Q1 (RFAMP)
6
5
1
7
Q2
Q3
Q4
AM
IFT
Z2602
AMANT
AN734
P.B E
ALC/T
IC100
C1AA00000612
ANALOG SWITCH
IC1004
Q1003
SWITCHING
(BEAT PROOF/
RECH)
L1002
IC951
PHOTO
INTERRUPTER
CNB13030R2AU
IC
P
IN
C
97
PHOT0_1
6
19
15
12
21(4)
22(3)
17(8)
1(2)
24(23)
3
5
2
4
Q2980
DECK
MOTOR
SWITCH
M1002
S951
MODE
52
HALF_1
53
MODE_1
5
4
RDS_DA
RDS_CLK
S952
HALF
Z971
INTERFACE
91
DECK2
S972
HALF
S975
RECINH_F
S971
MODE
(DECK 2)
R/P HEAD
LCH
Q1017
MOTOR
SWITCH
M
(DECK 2)
ERASE HEAD
(DECK 1)
P.B. HEAD
LCH
C0ABA000009
RDS IC
IC2809
14
15
MLD
MCLK
CE
MDATA
SD
BLKCK
PLLCLK
ST/DO
/RST
STAT
B
CD_RST
JOG VOL
VR6491
IC2801
C2CBYY000053
MICROPROCESSOR
TO
CD LOADING CIRCUIT
S7201
RESET
SWITCH
QR6457
LED
DRIVE
VOL_LED
66
70
FL_CS
71
FL_DOUT
74
72
FL_CLK
D6457,
D6462
MLD
76
77
78
3
MDATA
MCLK
22
SD
21
ST/DO
78
STATUS
84
CHG_CW
85
CHG_CCW
80
HOME_SW
86
ST_SW
83
OPEN_SW
82
CLOSE_SW
87
PLAY_SW
90
UP_SENSOR
89
BOTTOM_SW
81
SPEED
PLLCE
5
PLLCK
X_OUT
13
X_IN
15
V_JOG_A
67
V_JOG_B
68
/RESTSW
82
X2802
XC_IN
10
XC_OUT
11
X2801
19
BLKCK
25~40
5~16,24
FL10
C0HBB0000057
FL DRIVER
IC6601
STB
DIN
CLK
9
7
8
FL40
FL25
FL24
FROM POWER
TRANSFORMER
GR1
GR12
31~42
14~22,
23~29
SG1
SG16
FL6602
FL DISPLAY
B
CD STATUS
INTERFACE
BLKCK
INTERFACE
SWITCH
Q2907
Q2906
SA-AK240E / SA-AK240EB / SA-AK240EG
54
CD SIGNAL
RCH
B
B
B
B
B
AN7348S-E1
P.B EQ/REC AMP/
ALC/TPS AMP
IC1001
C1AA00000612
ANALOG SWITCH
IC1004
Q1003
SWITCHING
(BEAT PROOF/
RECH)
L1002
BIAS OSC
CONTROL
Q1004, Q1005,
Q1007
NOR/CrO &
HI/LO LOGIC
LOGIC
REC/PB
RIPPLE
REJECTION
LOGIC L/H
ALC
Q2978
D951
CONTROL
SWITCH
PLUNGER
SUPPLY SWITCH/
PLUNGER:ON/OFF
SWITCH
PLUNGER
SUPPLY SWITCH/
PLUNGER:ON/OFF
SWITCH
95
PHOTO_2
IC951
PHOTO
INTERRUPTER
CNB13030R2AU
IC971
PHOTO
INTERRUPTER
CNB13030R2AU
97
PHOT0_1
56
PLG1
Q2957,Q2958
Q2959,Q2960
57
PLG2
60
DECK1_H
10
16
14
13
11
6
19
15
12
21(4)
22(3)
17(8)
1(2)
24(23)
18(7)
9
3
5
2
4
59
REC
Q2980
DECK
MOTOR
SWITCH
58
MTR
20(5)
M1002
S951
MODE
52
HALF_1
53
MODE_1
S952
HALF
Z971
INTERFACE
91
DECK2
S972
HALF
S975
RECINH_F
S971
MODE
IC2801
MICROPROCESSOR
D971
(DECK 2)
R/P HEAD
LCH
B
Q1017
MOTOR
SWITCH
M
(DECK 2)
ERASE HEAD
(DECK 1)
P.B. HEAD
LCH
IC2803
C1BB00001121
AUDIO SOUND PROCESSOR
JK2801
AUX
S6101~S6108,
S6201~S6207,
S6302~S6307
Q2317 (Q
METER
CONTROL
SWITCH
MUTING
CONTROL
MUTING
CONTROL
MUTIN
CONTR
AGC
CONTROL
SWITCH
Q2511
Q2411(Q2311)
Q2142(Q2242)
DATA
40
CLK
39
26
ASP_DAT
27
ASP_CLK
47
DCDET
IN-L1(R1)
IN-L3(R3)
IN-L2(R2)
1(2)
3(4)
REC-L(R)
53(17)
GV-OUT-L(R)
54(16)
IN_L4(R4)
7(8)
IN-L5(R5)
9(10)
5(6)
42(37)
L-OUT(R-OUT)
D2503
20
SYNC
7
F_HOP
6
STANDBY
ST
46
PCONT/EFP_/CE
PCONT/E
KEY3
92 ~ 94
KEY1
D2811
40
MUTE_A
IC2801
MICROPROCESSOR
39
MUTE_DA
IC2804
C0AABB000125
OP-AMP
D2813
Q2948,Q2949
1
LM_1
(NOT SUPPLIED)
E-EPROM
IC2871
5
4
3
43
EE_DAT
42
EE_CLK
41
EE_CS
6
Q2942,Q2943
FAN
MOTOR
DRIVE
DC DETECT
SWITCH
M
FILTER
2(6)
1(7)
3(5)
D
H
P
JK6751
MUSIC PORT INPUT
MUTE_
B
Z6481
REMOTE SENSOR
QR6457
LED
DRIVE
VOL_LED
66
RMT
18
D6457,
D6462
FROM POWER
TRANSFORMER
Q2501
FILTER
C2CBYY000053
C2CBYY000053
SA-AK240E / SA-AK240EB / SA-AK240EG
55
RCH
B
B
B
B
B
B
B
B
B
S6101~S6108,
S6201~S6207,
S6302~S6307
Q2317 (Q2417)
Q2341 (Q2441)
Q5153
Q5154
HP_L(R)
G
OL
MUTING
CONTROL
MUTING
CONTROL
HEADPHONE
MUTING
FAN
SWITCH
PCONT
SWITCH
MODE
SWITCH
SWITCH
AGC
CONTROL
SWITCH
Q2411(Q2311)
Q2142(Q2242)
47
DCDET
20
SYNC
7
F_HOP
F_HOP
6
STANDBY
STANDBY
F_HOP
SYNC
46
PCONT/EFP_/CE
PCONT/EFP_/CE
PCONT/EFP_/CE
KEY3
92 ~ 94
KEY1
D2811
MICROPROCESSOR
39
MUTE_DA
IC2804
C0AABB000125
OP-AMP
D2813
Q2948,Q2949
Q5201
Q5202
X5202
X5201
Q2942,Q2943
FAN
MOTOR
DRIVE
DC DETECT
SWITCH
HOPPING
SWITCH
HOPPING
SWITCH
M
FILTER
2(6)
1(7)
3(5)
T5950
Q5950
SYNC
DC_DET
DC_DET
FAN
FAN
HP_SW
HP_SW
HP_SW
PA_SW
PA_SW
JK6551
HEADPHONE
VOLTAGE
REGULATOR
(-VP)
CURRENT CONTROL SWITCH/
26V VOLTAGE REGULATOR
CURRENT CONTROL SWITCH/
SWITCH/
VOLTAGE REGULATOR
DECK CONTROL SWITCH/
SUPPLY CONTROL SWITCH/
PCONT CONTROL SWITCH
D5959
Q5951
POWER
TRANSFORMER
T5951
PCONT
CONTROL
F1
Q5953
D5961~D5964
D5961~D5964
Q5115
Q5952
SYSTEM 6V
VOLTAGE
REGULATOR
JK5950
AC INLET
L5950
LINE FILTER
D5950~D5953
FP5950
FP5940
SUB
TRANSFORMER
D5954~D5957
Q5112~Q5114
5.7V VOLTAGE
REGULATOR
15V VOLTAGE
REGULATOR
CURRENT STABLISER/
LIMITER SWITCH/
11V VOLTAGE REGULATOR
Q5101,Q5110
Q5111
FP5920
Q5102,Q5108,Q5109
Q2950~Q2952
C1BA00000407
2-CH DIGITAL AMP
IC5301
11(13)
VSSP1(2)
8(16)
VDDP1(2)
IN1+
IN1-
2
3
IN2-
21
IN2+
22
OSC
1
MODE
BOOT1(OUT1)
L5301
BOOT2(OUT2)
23
9(10)
15(16)
C0JBAB000011
LOGIC IC
IC5201
1
2
5
3(6)
10
SYNCHRONISING
SWITCH
MUTE_D_AMP
MUTE_D_AMP
Q5173
Q5103,Q5104
STANDBY
Z5950
: MAIN SIGNAL LINE
: FM OSC SIGNAL LINE
: FM SIGNAL LINE
: CD SIGNAL LINE
: AM OSC SIGNAL LINE
: AUX SIGNAL LINE
: AM SIGNAL LINE
: FM/AM SIGNAL LINE
: CD-DA (AUDIO/VIDEO) SIGNAL LINE
: PLAYBACK SIGNAL LINE
: RECORD SIGNAL LINE
RL5950
TO
FL DISPLAY
RIGHT CH
(6 W)
D5126
LCH
SIGNAL LINES
( ) Indicates the Pin No. of Right Channel.
NOTE : Signal Lines are applicable to the Left Channel only.
FILTER
FILTER
JK5101
SA-AK240E / SA-AK240EB / SA-AK240EG
56
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