DOWNLOAD Panasonic SA-AK270EB / SA-AK270EG Service Manual ↓ Size: 14.36 MB | Pages: 120 in PDF or view online for FREE

Model
SA-AK270EB SA-AK270EG
Pages
120
Size
14.36 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / CD STEREO SYSTEM
File
sa-ak270eb-sa-ak270eg.pdf
Date
PREV: Panasonic SA-AK27 (serv.man2) Service Manual

Panasonic SA-AK270EB / SA-AK270EG Service Manual ▷ View online

19.6. (K) SMPS P.C.B.
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
10
11
12
13
 SMPS P.C.B. (REPX0622J)
K
SA-AK270EB/EG
SMPS P.C.B.
CAUTION
RISK OF ELECTRIC SHOCK
AC VOLTAGE LINE.
PLEASE DO NOT TOUCH THIS P.C.B
PbF
B
C
E
1
3
2
1
3
2
B
C
E
B
C
E
B
C
E
A
CA
A
A
CA
A
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
A
CA
NC
B
C
E
PRI
SEC
PRI
SEC
PC5702
R5705
R5704
C5721
C5722
C5726
TH5860
W5801
R5732
C5723
C5725
R5731
D5727
R5733
C5795
R5724
C5822
C5796
C5820
C5821
C5819
R5895
R5893 R5892
C5823
C5898
R5891
R5787
R5798
R5786
R5797
D5732
R5725
D5724
R5722
PC5720
PC5701
(MAIN TRANSFORMER)
D5721
D5722
D5723
D5725
D5728
C5720
R5817
R5810
R5809
R5808
R5807
R5730
R5729
R5728
R5721
QR5810
Q5722
R5720
C5728
C5896
Q5860
R5864
R5860
R5862
R5863
Q5862
Q5861
C5869
R5894
R5861
Q5721
R5723
PC5799
R5795
D5730
D5797
C5897
Q5898
R5896
R5897
R5890
R5806
C5818
R5802
R5803
R5804
R5805
C5810
R5814
R5813
R5815
R5816
R5812
R5811
D5806
C5825
QR5801
C5826
Q5802
R5801
D5807
R5800
R5825
C5831
C5832
C5812
C5800
C5815
R5702
R5834
R5832
R5703
C5790
C5794
D5809
W5803
W5804
W5805
W5806
C5805
C5808
C5824
CN5802
T5751
IC5701
C5713
D5702
D5701
D5801
D5802
D5803
C5813
W5725
T5701
C5730
D5805
D5896
C5791
D5798
D5793
C5816
C5899
(BACKUP TRANSFORMER)
C5703
W5729
K571
1
C5797
C5798
IC5799
W5734
C5700
ZJ5803
R5726
C5724
D5729
D5726
Q5720
R5824
R5822
R5821
R5820
D5804
Q5803
W5727
D5731
W5726
W5728
W5710
W571
1
W5724
W5715
W5712
W5706
W5707
W5735
W5731
IC5801
HEATSINK
W5714
W5701
W5704
R5823
W5708
C5817
W5730
W5702
W5705
H5801*
W5713
W5717
W5718
W5719
W5720
W5721
W5722
K5577
TH5701
ZJ5801
W5703
R5796
IC5899
C5712
HEATSINK
K1
R5752
C5737
R5750
R5841
R5840
W5807
QR5802
K2
C5814
C581
1
C5827
C5801
C5802
C5803
C5804
0562B-2
0562B-2
* FOR INDICATION ONLY
RED
BLK
1
2
3
4
5
6
7
8
9
10
11
10
7
8
9
6
1
2
3
4
5
7
6
5
4
3
2
1
+1
-4
~3
~2
1
2
9
10
18
17
16
15
14
13
12
11
4
5
6
7
8
1
4
5
8
3
1
2
1
8
3
1
2
7
6
5
4
3
2
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
B
C
E
SA-AK270EB / SA-AK270EG
101
SA-AK270EB / SA-AK270EG
102
20 Illustration of ICs, Transistors and Diodes
B1BACG000023
B1BCCG000002
E
C
B
B1ABGC000005
B1GBCFJJ0051
B1ABCF000176
B1ADCF000001
B1ADCE000012
B1GBCFJN0033
B1GBCFGH0001
C0DAAYY00042 (5P)
B1GBCFLL0037
B1GDCFGA0018
B1ABCF000011
B1GDCFGH0002
2SA207700L
UNR221400L
C5HACYY00003 (7P)
C1AA00000612 (5P)
1
5
C1BA00000487 (23P)
B0ACCK000005
Cathode
Anode
Ca
A
B0ADCJ000020
Cathode
Cathode
Anode
MN6627954MA (100P)
C0HBB0000057 (44P)
MNZSFB5KJM2 (64P)
C1AB00002885 (52P)
RFKWAK270PL (100P)
1
1
28
15
14
7
21
22
8
BA5948FPE2
C0CAAKG00046
A
C a
MAZ80560ML
MAZ80510ML
MAZ80750ML
MAZ80820HL
MAZ810000L
MAZ81800ML
MAZ82400HL
1
4
8
5
C0AABB000125 (8P)
2SC3940A0A
B1AAJC000019
B1BABK000001
B1BACD000018
AN7326K (22P)
1
B
C
E
2SD09650RA
B1ACKD000006
B1AAGC000006
B
C E
C0DBZGC00067 (5P)
1
3
4
5
2
A
Ca
Cathode
Anode
A
Ca
Cathode
Anode
A
Ca
B0EAKM000117
B0JAME000114
B0EAMM000057
B0HAMP000094
B0BC019A0007
B0BC035A0007
B0BC2R4A0006
B0BC6R100010
23
1
C0JBAB000902 (14P)
C0JBAF000716 (14P)
C1BB00001137 (16P)
C0DABFC00002 (3P)
C0DAEMZ00001 (3P)
C0DBZYE00002
1
2
3
MIP4110MSSCF
B0JCPD000025
Cathode
Ca
A
Anode
Anode
Anode
Cathode
B0HBSM000043
MA2C16500E
B0HCMM000019
B0HFRJ000012
Anode
Cathode
Anode
Cathode
(NC)
B0ZAZ0000052
B3AAA0000803
B3AAA0000884
MA2J11100L
MA2J72800L
Cathode
Anode
Cathode
Anode
A
C a
Cathode
Anode
E
C B
B0FBAR000041
+ ~ ~
-
3
1
1 2
4
3
2
4
CNB13030R2AU
E
C B
E
C B
2315476
C0GAG0000007
103
SA-AK270EB / SA-AK270EG
21.1. IC2801 (RFKWAK270PL)
System Microprocessor
Pin No.
Mark
I/O
Function
1
Lvl Meter
O
Level Meter
2
NC
-
NC
3
NC
-
NC
4
RDS_Dat
I
RDS Data Input
5
RDS_CLK
I
RDS CLK Input
6
NC
-
NC
7
F_HOP
O
F_Hop for Digital Amp
8
BYTE
-
External Data Bus Width Select
Input (Connect to Ground)
9
EFP_CNVSS
-
Flash Mode Terminal
10
Xcin
-
32.768 kHz Sub Clock
11
Xcout
-
32.768 kHz Sub Clock
12
EFP_RESET
-
/RESET Input (Active L)
13
Xout
-
10 MHz Main Clock
14
Vss
-
Ground (0V)
15
Xin
-
10 MHz Main Clock
16
VCC
-
Power Supply (+3.3V)
17
/NMI
-
Connected to vcc (+3.3V)
18
RMT
I
Remote Control Input
19
BLKCK
I
CD Block Clock Input
20
SYNC
I
AC Failure Detect Input
21
Tuner OUT/ST
O
Serial Output Data
22
Tuner IN
I
Serial Input Data
23
PLL_CLK
I/O
Tuner PLL CLK
24
SW_LVL1
-
NC
25
SW_LVL2
-
NC
26
PLL_SD
I
Tuner CE
27
MUTE_F
O
DAMP MUTE_F
28
MUTE_S
O
DAMP MUTE_S
29
USB SCL
I/O
USB I2C clock line
30
USB_SDA
I/O
USB I21C data line
31
IPOD_TXD
-
NC
32
IPOD RXD
-
NC
33
USB_RST (CLK)
O
USB reset pin. (Flash Clock for
on board writer)
34
BUSY
I
Flash Busy for On board writer
35
ASP_DAT
I/O
ASP DATA
36
ASP_CLK
I/O
ASP_CLK
37
HP_SW
I
Headphone SW
38
PA_SW
I
Music Port SW
39
MUTE_DA
O
For Digital Amp Mute
40
MUTE_A
O
Audio Mute
41
EE_CS/EFP/EPM
O
EEPROM chip select (Flash
EPM for On board writer)
42
EE_CLK
O
EEPROM clock
43
EE_DAT
I/O
EEPROM data
44
DCDET
I
DC detect input
45
SMPS_BP
O
SMPS Beat Proof
46
SMPS_PCONT
O
Main transformer control output
47
DC DET 1
I
DC detect input 1
48
Deck Photo
I
Deck Photo
49
Deck Motor
I/O
Deck Motor, L=OFF
50
Deck Plunger
O
Deck Plunger
51
DMT
O
Deck Mute L= Mute Off, H=
Mute On
52
DECK REC
I/O
H when record circuit is
operating
53
VOL_LED
O
Volume LED
54
FL_CLK
O
Serial Clock to FL driver
55
FL_DOUT
O
Serial Data to FL driver
56
FL_CS
O
FL driver CS
57
BASS_JOG1
I
Bass Jog 1
Pin No.
Mark
I/O
Function
58
BASS_JOG2
I
Bass Jog 2
59
VERR
I/O
verify error for USB version up
using CD
60
MMOD0
I/O
Micon mode switching for USB
version up
61
TERR
I/O
Time Out Error for USB
62
VCC
-
Power Supply (+3.3V)
63
DBASS LED
-
NC
64
VSS
-
Ground (0V)
65
CCW
O
CRS1 CCW
66
CW
O
CRS1 CW
67
ST SW
I
CRS1 ST SW
68
OPEN SW
I
CRS1 Open SW
69
CLOSE SW
I
CRS1 Close SW
70
PLAY SW
I
CRS1 Play SW
71
PLUNGER
O
CRS1 PLUNGER
72
UD SENSOR
I
CRS1 UD Sensor
73
Bottom SW
I
CRS1 Bottom SW
74
USB_REQ
I
USB request
WR Start
I/O
Write start flag for USB version
up.
75
STATUS
I
CD Servo LSI status input
76
MLD
O
CD Command load output
77
MDATA_Out
O
CD Command data output
78
MCLK
O
CD Command CLK output
79
/Reset_SW
I
CD limit SW Input for the most
inner point (activeLow)
80
HOME_SW
I
Home SW for CRS1
81
CD RST
I/O
CD reset Output
82
NC
I
NC
83
NC
-
NC
84
NC
-
NC
85
DECK_EJECT
I
Deck Eject button
86
CS
I
Chip Select pin
87
NC
-
NC
88
NC
-
NC
89
REG
I
Region Setting
90
VOL_JOG
AD
Volume Jog
91
NC
-
NC
92
Key 3
I
Key 3 Input
93
Key 2
I
Key 2 Input
94
Key 1
I
Key 1 Input
95
DECK_AD1
I
Deck AD Input 1
96
AVSS
-
Analog power supply input
(Connect to GND)
97
DECK_AD2
I
Deck AD Input 2
98
Vref
-
Reference for AD (3.3V)
99
Avcc
-
Analog power supply input
100
DEMO_SEL
I
(H= default demo ON, L= default
demo OFF)
21.2. IC6601 (C0HBB0000057) FL
DISPLAY
Pin No.
Mark
I/O
Function
1
P0
-
NC
2
P1
-
NC
3
P2
-
NC
4
P3
-
NC
5
OSC
I
Oscillator Input
6
NC
-
NC
7
DIN
I
Data Input
8
CLK
I
Clock Input
9
STB
I
Serial Interface Strobe
21 Terminal Function of Integrated Circuits
104
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