Page 1
PSG0909010SE
CD Stereo System
Model No. SA-AK180PN
SA-AK180PU
SA-AK280EB
SA-AK280EG
SA-AK280EP
SA-AK280EE
SA-AK280GN
SA-AK280PH
SA-AK280PN
SA-AK280PR
Product Color: (K)...Black Type
Subject : Block Diagram / Schematic Diagram / Printed Circuit Board / Replace-
ment Parts List (Updates)
Please file and use this supplement manual together with the service manual for
Model No. SA-AK180PN/PU-K Order No. PSG0905023CE
Model No. SA-AK280EB/EG/EP-K Order No. PSG0903007CE
Model No. SA-AK280EE-K Order No. PSG0904014CE
Model No. SA-AK280GN-K Order No. PSG0904010CE
Model No. SA-AK280PH/PN-K Order No. PSG0902011CE
Model No. SA-AK280PR-K Order No. PSG0904001CE
TABLE OF CONTENTS
1Notes----------------------------------------------------------------- 3
2 Block Diagram ----------------------------------------------------- 4
2.1. D-AMP for (SA-AK280EB/EG/EP) -------------------- 4
2.2. D-AMP for (SA-AK280EE) ------------------------------ 5
PAG E PAG E
2.3. D-AMP for (SA-AK280GN) ------------------------------6
2.4. D-AMP for (SA-AK280PH/PN) -------------------------7
2.5. D-AMP for (SA-AK280PR) ------------------------------8
3 Schematic Diagram ----------------------------------------------9
© Panasonic Corporation 2009. All rights reserved.
Unauthorized copying and distribution is a violation of
law.
Page 2
3.1. D-AMP Circuit for (SA-AK180PN/PU) ----------------9
3.2. D-AMP Circuit for (SA-AK280EB/EG/EP) --------- 10
3.3. SMPS Circuit for (SA-AK280EB/EG/EP) ---------- 11
3.4. D-AMP Circuit for (SA-AK280EE) ------------------- 12
3.5. SMPS Circuit for (SA-AK280EE) -------------------- 13
3.6. D-AMP Circuit for (SA-AK280GN) ------------------ 14
3.7. SMPS Circuit for (SA-AK280GN) ------------------- 15
3.8. D-AMP Circuit for (SA-AK280PH/PN) --------------16
3.9. D-AMP Circuit for (SA-AK280PR) -------------------17
4 Printed Circuit Board ------------------------------------------ 18
4.1. D-Amp P.C.B. for (SA-AK180PN/PU) -------------- 18
4.2. D-Amp P.C.B. for (SA-AK280EB/EG/EP) --------- 19
4.3. D-Amp P.C.B. for (SA-AK280EE) ------------------- 20
4.4. D-Amp P.C.B. for (SA-AK280GN) -------------------21
4.5. D-Amp P.C.B. for (SA-AK280PH/PN) -------------- 22
4.6. D-Amp P.C.B. for (SA-AK280PR) ------------------- 23
5 Replacement Parts List --------------------------------------- 24
5.1. Electrical Replacement Parts List -------------------- 24
2
Page 3
1Notes
Background:
• For improvement of quality and performance.
This supplement includes additional and revised contents to the original service manual for below sections:-
1. Update to Block Diagram (D-AMP Circuit)
2. Update to Schematic Diagram (D-AMP Circuit and SMPS Circuit)
3. Update to Printed Circuit Board (D-AMP P.C.B.)
4. Update to Electrical Replacement Parts List
3
Page 4
2 Block Diagram
2.1. D-AMP for (SA-AK280EB/EG/EP)
With reference to original service manual (section 15.4) on page 86 for Model No. SA-AK280EB/EG/EP-K
: AUDIO OUTPUT SIGNAL LINE
FRONT R
CN5050
CN2341A
FROM MAIN (2/2)
FROM
MAIN (1/2)
FROM MAIN (2/2)
315
CN5050
CN2341A
17 1
CN5050
CN2341A
13 5
CN5050
CN2341A
117
MOD DA
MUTE F SW
FRONT L
Q5604
SWITCH
Q5603
SWITCH
Q5601
SWITCH
TH5001
CHANGE
IC5000
C1BA00000492
C1BA00000487
AUDIO DIGITAL POWER AMP
IN1M
3
INPUT
IN1P
STAGE
2
MUTE
SGND1
5
OSC
1
MODE
INPUT
STAGE
OSCILLATOR
MUTE
MODE
23
SGND2
19
IN2P
22
IN2M
21
- 30V SENSE
PWM
MODULATOR
MANAGER
PWM
MODULATOR
12 7
STABI
STABI
PROT
RELEASE1
SWITCH1
CONTROL
ENABLE1
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
AND
HANDSHAKE
ENABLE2
CONTROL
SWITCH2
RELEASE2
AND
HANDSHAKE
+ 30V SENSE
DRIVER
HIGH
DRIVER
LOW
DRIVER
HIGH
DRIVER
LOW
- 30V SENSE
VDDP2
VSSP1
11
816
VDDP1
VSSP2
13
BOOT1
OUT1
BOOT2
OUT2
9
FR +
10
15
FL +
14
SPEAKERS
FRONT R
JK5001
1
JK5001
2
FRONT L
JK5001
3
JK5001
4
+
-
+
-
FROM/TO
MAIN (1/2)
CN2341A
14 4
CN2341A
16 2
CN5050
CN5050
FHOP
DC DET
IC5500
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
D5501
2
1
D5502
4
3
10
11
6
5
X5500X5501
8
9
14
FAN DC
DELETE
(IC5501)
Q5101,Q5102
DC DETECT
SA-AK280EB/EG/EP D-AMP BLOCK DIAGRAM
4
Page 5
2.2. D-AMP for (SA-AK280EE)
With reference to original service manual (section 15.4) on page 86 for Model No. SA-AK280EE-K
: AUDIO OUTPUT SIGNAL LINE
FRONT R
CN5050
CN2341A
FROM MAIN (2/2)
FROM
MAIN (1/2)
FROM MAIN (2/2)
315
CN5050
CN2341A
17 1
CN5050
CN2341A
13 5
CN5050
CN2341A
117
MOD DA
MUTE F SW
FRONT L
Q5604
SWITCH
Q5603
SWITCH
Q5601
SWITCH
TH5001
CHANGE
IC5000
C1BA00000492
C1BA00000487
AUDIO DIGITAL POWER AMP
IN1M
3
INPUT
IN1P
STAGE
2
MUTE
SGND1
5
OSC
1
MODE
INPUT
STAGE
OSCILLATOR
MUTE
MODE
23
SGND2
19
IN2P
22
IN2M
21
- 30V SENSE
PWM
MODULATOR
MANAGER
PWM
MODULATOR
12 7
STABI
STABI
PROT
RELEASE1
SWITCH1
CONTROL
ENABLE1
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
AND
HANDSHAKE
ENABLE2
CONTROL
SWITCH2
RELEASE2
AND
HANDSHAKE
+ 30V SENSE
DRIVER
HIGH
DRIVER
LOW
DRIVER
HIGH
DRIVER
LOW
- 30V SENSE
VDDP2
VSSP1
11
816
VDDP1
VSSP2
13
BOOT1
OUT1
BOOT2
OUT2
9
SPEAKERS
FRONT R
FR +
10
15
JK5001
1
JK5001
2
+
-
FRONT L
FL +
14
JK5001
3
JK5001
4
+
-
FROM/TO
MAIN (1/2)
CN2341A
14 4
CN2341A
16 2
CN5050
CN5050
FHOP
DC DET
IC5500
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
D5501
2
1
4
3
D5502
10
11
6
5
X5500X5501
8
9
14
FAN DC
DELETE
(IC5501)
Q5101,Q5102
DC DETECT
SA-AK280EE D-AMP BLOCK DIAGRAM
5
Page 6
2.3. D-AMP for (SA-AK280GN)
With reference to original service manual (section 15.4) on page 86 for Model No. SA-AK280GN-K
: AUDIO OUTPUT SIGNAL LINE
FRONT R
CN5050
CN2341A
FROM MAIN (2/2)
FROM
MAIN (1/2)
FROM MAIN (2/2)
315
CN5050
CN2341A
17 1
CN5050
CN2341A
13 5
CN5050
CN2341A
117
MOD DA
MUTE F SW
FRONT L
Q5604
SWITCH
Q5603
SWITCH
Q5601
SWITCH
TH5001
CHANGE
IC5000
C1BA00000487 C1BA00000492
AUDIO DIGITAL POWER AMP
IN1M
3
INPUT
IN1P
STAGE
2
MUTE
SGND1
5
OSC
1
MODE
INPUT
STAGE
OSCILLATOR
MUTE
MODE
23
SGND2
19
IN2P
22
IN2M
21
- 30V SENSE
PWM
MODULATOR
MANAGER
PWM
MODULATOR
12 7
STABI
STABI
PROT
RELEASE1
SWITCH1
CONTROL
ENABLE1
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
AND
HANDSHAKE
ENABLE2
CONTROL
SWITCH2
RELEASE2
AND
HANDSHAKE
+ 30V SENSE
DRIVER
HIGH
DRIVER
LOW
DRIVER
HIGH
DRIVER
LOW
- 30V SENSE
VDDP2
VSSP1
11
816
VDDP1
VSSP2
13
BOOT1
OUT1
BOOT2
OUT2
9
SPEAKERS
FRONT R
FR +
10
15
JK5001
1
JK5001
2
+
-
FRONT L
FL +
14
JK5001
3
JK5001
4
+
-
FROM/TO
MAIN (1/2)
CN2341A
14 4
CN2341A
16 2
CN5050
CN5050
FHOP
DC DET
IC5500
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
D5501
2
1
4
3
D5502
10
11
6
5
X5500X5501
8
9
14
FAN DC
DELETE
(IC5501)
Q5101,Q5102
DC DETECT
SA-AK280GN D-AMP BLOCK DIAGRAM
6
Page 7
2.4. D-AMP for (SA-AK280PH/PN)
With reference to original service manual (section 15.4) on page 88 for Model No. SA-AK280PH/PN-K
: AUDIO OUTPUT SIGNAL LINE
FRONT R
CN5050
CN2341A
FROM MAIN (2/2)
FROM
MAIN (1/2)
FROM MAIN (2/2)
315
CN5050
CN2341A
17 1
CN5050
CN2341A
13 5
CN5050
CN2341A
117
MOD DA
MUTE F SW
FRONT L
Q5604
SWITCH
Q5603
SWITCH
Q5601
SWITCH
TH5001
CHANGE
IC5000
C1BA00000492
C1BA00000487
AUDIO DIGITAL POWER AMP
IN1M
3
INPUT
IN1P
STAGE
2
MUTE
SGND1
5
OSC
1
MODE
INPUT
STAGE
OSCILLATOR
MUTE
MODE
23
SGND2
19
IN2P
22
IN2M
21
- 30V SENSE
PWM
MODULATOR
MANAGER
PWM
MODULATOR
12 7
STABI
STABI
PROT
RELEASE1
SWITCH1
CONTROL
ENABLE1
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
AND
HANDSHAKE
ENABLE2
CONTROL
SWITCH2
RELEASE2
AND
HANDSHAKE
+ 30V SENSE
DRIVER
HIGH
DRIVER
LOW
DRIVER
HIGH
DRIVER
LOW
- 30V SENSE
VDDP2
VSSP1
11
816
VDDP1
VSSP2
13
BOOT1
OUT1
BOOT2
OUT2
9
SPEAKERS
FRONT R
FR +
10
15
JK5001
1
JK5001
2
+
-
FRONT L
FL +
14
JK5001
3
JK5001
4
+
-
FROM/TO
MAIN (1/2)
CN2341A
14 4
CN2341A
16 2
CN5050
CN5050
FHOP
DC DET
IC5500
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
D5501
2
1
4
3
D5502
10
11
6
5
X5500X5501
8
9
14
FAN DC
DELETE
(IC5501)
Q5101,Q5102
DC DETECT
SA-AK280PH/PN D-AMP BLOCK DIAGRAM
7
Page 8
2.5. D-AMP for (SA-AK280PR)
With reference to original service manual (section 15.4) on page 88 for Model No. SA-AK280PR-K
: AUDIO OUTPUT SIGNAL LINE
FRONT R
CN5050
CN2341A
FROM MAIN (2/2)
FROM
MAIN (1/2)
FROM MAIN (2/2)
315
CN5050
CN2341A
17 1
CN5050
CN2341A
13 5
CN5050
CN2341A
117
MOD DA
MUTE F SW
FRONT L
Q5604
SWITCH
Q5603
SWITCH
Q5601
SWITCH
TH5001
CHANGE
IC5000
C1BA00000492
C1BA00000487
AUDIO DIGITAL POWER AMP
IN1M
3
INPUT
IN1P
STAGE
2
MUTE
SGND1
5
OSC
1
MODE
INPUT
STAGE
OSCILLATOR
MUTE
MODE
23
SGND2
19
IN2P
22
IN2M
21
- 30V SENSE
PWM
MODULATOR
MANAGER
PWM
MODULATOR
12 7
STABI
STABI
PROT
RELEASE1
SWITCH1
CONTROL
ENABLE1
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
AND
HANDSHAKE
ENABLE2
CONTROL
SWITCH2
RELEASE2
AND
HANDSHAKE
+ 30V SENSE
DRIVER
HIGH
DRIVER
LOW
DRIVER
HIGH
DRIVER
LOW
- 30V SENSE
VDDP2
VSSP1
11
816
VDDP1
VSSP2
13
BOOT1
OUT1
BOOT2
OUT2
9
SPEAKERS
FRONT R
FR +
10
15
JK5001
1
JK5001
2
+
-
FRONT L
FL +
14
JK5001
3
JK5001
4
+
-
FROM/TO
MAIN (1/2)
CN2341A
14 4
CN2341A
16 2
CN5050
CN5050
FHOP
DC DET
IC5500
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
D5501
2
1
4
3
D5502
10
11
6
5
X5500X5501
8
9
14
FAN DC
DELETE
(IC5501)
Q5101,Q5102
DC DETECT
SA-AK280PR D-AMP BLOCK DIAGRAM
8
Page 9
3 Schematic Diagram
B
G
F
3.1. D-AMP Circuit for (SA-AK180PN/PU)
With reference to original service manual (section 16.5) on page 80 for Model No. SA-AK180PN/PU-K
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
B
C
D
E
F
G
SCHEMATIC DIAGRAM - 8
D-AMP CIRCUIT
TO
SPEAKERS
TO
SMPS CIRCUIT
(H5801*)
IN SCHEMATIC
DIAGRAM - 9
TO
MAIN CIRCUIT
(CN2341A)
IN SCHEMATIC
DIAGRAM - 3
1
17
JK5001
CN5500
CN5050
REAR R/SUBWOOFER
MUTE S_C (MODE 1)
MUTE F_SW (MODE 2)
FAN GND
FAN DC
FRONTL
SIGNAL A_GND
FRONT R
AGND
AGND
SURROUND L
AGND
SURROUND R
REAR L/AGND
CENTER
FHOP
ECO/FAN
DC_DET
MOD_DA
K5251
0
K5256
0
VDD
VDD
GND
GND
VSS
VSS
FL-
FL+
FR-
FR+
A
: +B SIGNAL LINE : -B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
IC5000
C1BA00000492
AUDIO DIGITAL POWER AMP
OUT1
VSSP1
BOOT1
C5008
0.015
R5004
10
0.1
C5012
C5020
220P
0.47
C5031
STABI
VSSP2
C5022
0.1
OUT2
C5009
0.015
R5005
C5013
220P
BOOT2
VSSD
VSSA2
VDDP2
C5011
0.1C5021
220P
10
0.1C5023
C5027
0.1
SGND2
19 21 23222010213 789456 12 1514 17 18161311
C5028
0.1
VDDA2
R5001
C5003
5.6K
0.47
IN2-
C5007
C5000
1000P
IN2+
MODE
330P
5.6K
R5003
0.47
C5005
1
G0A150L00003
Q5603
B1ADCE000012
SWITCH
10K
R5608
R5008
100
TH5001
D4CC11040013
2
43
L5000
D5002
D5004
D5001
D5003
C5032
0.68
C5015
0.68
C5014
B0HCSP000001
B0HCSP000001
B0HCSP000001
B0HCSP000001
R5611
2.7K
1000P
C5601
22
R5007
0.1
C5017
0.1
C5016
22
R5006
16V10
MODE
5.6K
R5030
5.6K
R5031
CHANGE
ADD
(K5781, K5782)
(C5450)
DC_DET
G0B9R5K00003
1
1
G0B9R5K00004
C5450
0.1
0
ZJ5400
L5001
L5002
C5445
0.1
2
43
43
2
321
K5782
K5781
0
0
1000P
C5051
1000P
C5052
1000P
C5053
1000P
C5050
321
MODE
FR_+
FR+
FR-
FL-
FL+
FL_+
ZJ5410
B
C
D
E
F
Q5102
B1ABCF000176
DC DETECT
6.8K
R5110
C5133
6.3V100
R5019
0.1
C5033
1.2K
R5022
1.2K
R5023
R5671
FR_+
0
FL_+
G
68KR5020
68K
MOD_DA
MUTE F_SW
R5602
10K
R5609
10K
10K
R5603
Q5604
B1ABCF000176
SWITCH
2.7K
R5604
Q5101
B1ABCF000176
DC DETECT
Q5601
B1ABCF000176
SWITCH
FAN_DC
IN+_FR
MUTE F_SW
DC_DET
MOD_DA
FL-
FL+
FR-
FR+
OSC
IN+_FR
1000P
C5001
R5010
10
VDDA0
0.1
C5520
C5511
35V470
0.1
C5521
C5510
35V470
VSSA0
R5011
10
R5504
22
0.01C5550
0.01C5556
100PC5557
390PC5551
100PC5553
390PC5552
D5502
MA2J1110GL
X5501
H2A7003A0011
X5500
H2A6023A0011
47P
C5558
D5501
MA2J1110GL
R5506
1M
R5507
1M
47P
C5559
OSC
R5000
C5002
5.6K
0.47
R5002
C5004
5.6K
0.47
K5001
0
IC5500
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
1
1A
VCC
2
1Y
3
2A
4
2Y
5
6
3Y
7
GND
IN1+
C5006
330P
C5040
100V22
6A
6Y
5A
5Y3A
4A
4Y
14
13
12
11
10
SGND1
PROT
VDDP1
VDDA1
C5024
R5514
VSSA1
C5025
C5030
0.1
0.1
33P
C5010
0.1C5019
0.1C5018
220P
R5510
470
FAN_DC
10
0.1
1M
R5508
D5503
MAZ8051GML
C5555
C5554
22
R5512
OSC
IN1-
9
R5505
100
8
4
3
2
1
8
0.1
C5518
7
6
5
0.1
4
C5519
3
2
1
3300P
C5150
K5302
C5151
0
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
3300P
C5515
C5514
0.1
0.1
H
SA-AK180PN/PU D-AMP CIRCUIT
H
1 2 3 4 5 6 7 8 9 10 11 12 13 14
9
Page 10
3.2. D-AMP Circuit for (SA-AK280EB/EG/EP)
B
I
H
With reference to original service manual (section 18.6) on page 101 for Model No. SA-AK280EB/EG/EP-K
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
B
C
D
E
F
G
SCHEMATIC DIAGRAM - 9
D-AMP CIRCUIT
TO
SPEAKERS
TO
SMPS CIRCUIT
(H5801*)
IN SCHEMATIC
DIAGRAM - 10
TO
MAIN CIRCUIT
(CN2341A)
IN SCHEMATIC
DIAGRAM - 3
1
17
JK5001
CN5500
CN5050
REAR R/SUBWOOFER
MUTE S_C (MODE 1)
MUTE F_SW (MODE 2)
K5256
FAN GND
FAN DC
FRONTL
SIGNAL A_GND
FRONT R
AGND
AGND
SURROUND L
AGND
SURROUND R
REAR L/AGND
CENTER
FHOP
ECO/FAN
DC_DET
MOD_DA
K5251
0
0
(K5256)
FL-
FL+
FR-
FR+
VDD
VDD
GND
GND
VSS
VSS
ADD
: +B SIGNAL LINE : -B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
IC5000
C1BA00000487
C1BA00000492
AUDIO DIGITAL POWER AMP
OUT1
VSSP1
BOOT1
C5008
0.015
R5004
10
0.1
C5012
C5020
CHANGE
220P
0.22
C5031
STABI
OUT2
BOOT2
VSSP2
C5009
0.47
0.015
C5011
R5005
10
0.1
C5022
C5013
220P
FAN_DC
IN+_FR
MUTE F_SW
DC_DET
MOD_DA
FL-
FL+
FR-
FR+
OSC
IN+_FR
1000P
C5001
R5010
10
VDDA0
0.1
C5520
C5511
35V470
0.1
C5521
C5510
35V470
VSSA0
R5011
10
R5504
22
0.01C5550
0.01C5556
100PC5557
390PC5551
100PC5553
390PC5552
D5502
MA2J11100L
X5501
H2A7003A0011
X5500
H2A6023A0011
47P
C5558
D5501
MA2J11100L
R5506
1M
R5507
1M
47P
C5559
OSC
R5000
C5002
5.6K
0.47
R5002
C5004
5.6K
0.47
K5001
0
IC5500
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
1
1A
2
1Y
3
2A
4
2Y
5
6
3Y
7
GND
IN1+
C5006
330P
CHANGE
C5040
100V22
VCC
14
6A
13
6Y
12
5A
11
10
5Y3A
9
4A
8
4Y
SGND1
PROT
VDDP1
R5514
100
VDDA1
C5024
0.1
1M
R5508
C5025
0.1
D5503
VSSA1
C5030
220P
33P
0.1C5018
R5510
470
10
MAZ80510ML
C5555
R5512
0
0.1C5019
0.1
C5554
C5010
FAN_DC
OSC
ADD
(R5512)
220P
IN1-
R5505
4
3
2
1
8
0.1
C5518
7
6
5
0.1
4
C5519
3
2
1
3300P
C5150
K5302
C5151
0
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
3300P
0.1
C5515
0.1
C5514
CHANGE
VSSD
VSSA2
VDDP2
C5027
0.1C5023
0.1C5021
220P
MOD_DA
MUTE F_SW
DELETE
(IC5501,C5560,C5561,K5780,R5511)
IN2+
IN2-
C5007
330P
5.6K
R5003
0.47
C5005
C5000
1000P
1
G0A150L00003
Q5603
B1ADCE000012
10K
R5608
R5602
10K
R5609
10K
MODE
R5008
100
TH5001
D4CC11040013
2
43
L5000
D5002
D5004
D5001
D5003
SWITCH
10K
R5603
B1ABCF000176
R5611
2.7K
Q5604
SWITCH
1000P
C5601
C5032
22
R5007
0.68
C5015
0.1
C5017
0.1
C5016
0.68
C5014
22
R5006
B0HCSP000001
B0HCSP000001
B0HCSP000001
B0HCSP000001
16V10
5.6K
R5030
5.6K
R5031
MODE
2.7K
R5604
B1ABCF000176
DC DETECT
B1ABCF000176
CHANGE
ADD
Q5101
Q5601
SWITCH
(C5450)
(K5781, K5782)
DC_DET
G0B9R5K00003
G0B9R5K00004
C5450
0.1
0
Q5102
B1ABCF000176
DC DETECT
6.8K
R5110
1
1
ZJ5400
L5001
L5002
C5445
0.1
C5133
321
6.3V100
2
1000P
C5050
43
1000P
C5051
43
1000P
C5052
2
1000P
C5053
K5782
0
K5781
0
321
ZJ5410
DELETE
(C5446,C5447,C5448,C5449)
68KR5020
68K
R5019
1.2K
R5022
0.1
1.2K
R5023
C5033
R5671
MODE
FR_+
FR+
FR-
FL-
FL+
FL_+
FR_+
FL_+
0
SGND2
VDDA2
19 21 23222010213 789456 12 1514 17 18161311
C5028
0.1
0.1
5.6K
R5001
ADD
0.47
C5003
(C5027)
A
B
C
D
E
F
G
H
SA-AK280EB/EG/EP D-AMP CIRCUIT
H
1 2 3 4 5 6 7 8 9 10 11 12 13 14
10
Page 11
3.3. SMPS Circuit for (SA-AK280EB/EG/EP)
H
B
I
With reference to original service manual (section 18.7) on page 102 for Model No. SA-AK280EB/EG/EP-K
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
SCHEMATIC DIAGRAM - 10
SMPS CIRCUIT
: +B SIGNAL LINE : -B SIGNAL LINE
P1
1
B
D5809
MA2J11100L
FAN_18V
AM_BP
PCONT
DC_18V
-13V
DCDET
SYS6V
SYNC
DCDET
FAN_18V
-30V_SENSE
+30V_SENSE
DCDET
DC_18V
AM_BP
R5825
1K
Q5803
2SC3940ARA
SWITCHING
-13V
FAN_18V
+30V_SENSE
-30V_SENSE
SYS6V
PCONT
R5822
R5821
R5820
R5824
R5823
91
91
91
91
91
2SA207700L
C5817
100V0.22
8.2K
R5814
Q5860
TRANSFORMER
TEMP DETECT
R5800
R5801
10K
QR5801
UNR221400L
DC DETECT
2.7K
R5802
0
R5803
R5806
47K
R5804
C5818
2.2K
R5805
12K
D5807
MA2J11100L
QR5802
B1GDCFGA0018
DC DETECT
0.1
C5810
IC5801
C0DABFC00002
SHUNT REGULATOR
15K
0.1
TO
D-AMP CIRCUIT
(CN5500)
IN SCHEMATIC
DIAGRAM - 9
C
D
E
F
TO
MAIN CIRCUIT
(CN2701*)
IN SCHEMATIC
DIAGRAM - 3
H5801*
+30V_SENSE
+30V_SENSE
-30V_SENSE
-30V_SENSE
CN5802
+18V.-12V_GND
+18V.-12V_GND
GND
GND
FAN_GND
FAN_18V
AM_BP
PCONT
DC18V
DC18V
-13V
DCDET
SYS_GND
SYS6V
SYNC
K1 0
K2
K4
C5896
0.1
0
0
+30V_SENSE
0.1
C5831
0.1
C5832
C5823
0.1
C5812
0.1
C5815
0.1
-30V_SENSE
8
7
6
5
4
3
2
1
11
10
9
8
7
6
5
4
3
2
1
G
H
Q5861 - Q5862
B1ABCF000176
TRANSFORMER TEMP DETECT
10K3K
R5862
Q5861
10K
R5861
R5860
C5870
10K
R5864
0.1
120K
R5841
R5840
82K
C
1
3
A
2
R
R5863
C5869
C5800
0.01
0.1
C5826
10K
0.01
0
0
1.5K
R5811
1.5K
R5816
0.1
C5825
Q5862
2.2K
R5832
2.2K
R5834
1
2
3
ZJ5801
CHANGE
2.7K
R5815
B1ABCF000176
FEED BACK CONTROL
D5806
MAZ80750ML
C5804
0.01
Q5802
D5801
B0HBSM000043
0.01
C5802
312
D5802
B0HBSM000043
C5816
25V470
R5809
330
C5803
0.01
24K
R5813
8.2K
R5812
TH5860
C5820 0.01
C5822 0.01
D5803
B0HFRJ000012
PC5720
B3PBA0000402
1
2
FEED BACK
PC5701
B3PBA0000402
1
2
FEED BACK
QR5810
INVERTER
D4CC11040013
D5804
B0EAMM000057
4
3
4
3
T5701
ETS42BN1A6AD
MAIN TRANSFORMER
10
-30V
11
AMPGND
12
13
14
+30V
15
+FAN 18V
GND
16
+18V
17
18
-12V
R5730
DRAIN
2SC3940ARA
LIMITING SWITCH
B1ABCF000176
LIMITING SWITCH
1K
D5725
B0BC6R100010
VIN
VCC
9
8
7
6
5
4
3
2
1
Q5720
CURRENT
Q5722
CURRENT
R5720
22
R5703
100K
D5731
B0EAMM000057
D5721
MAZ81800ML
R5721
10K
C5720
0.1
D5722
B0BC019A0007
D5723
MA2J11100L
Q5720
MA2J11100L
R5702
100K
D5702
B0ZAZ0000052
120
R5724
1K
R5723
D5728
Q5722
C5728
1000P
100K
R5728
C5713
3
21
Q5721
2SA207700L
SWITCHING
B0EAMM000057
MA2J11100L
220P
C5721
10K
R5729
0.01
D5726
B0EAKM000117
D5729
R5722
1K
D5724
R5725
C5700
F1BAF1020020
1000P
0
1000P
C5722
32 1
ZJ5803
D5727
MA2J11100L
TO SMPS
SECTION (2/2)
R5732
100
IC5701
C5HACYY00003
SWITCHING REGULATOR
OCP/BD
7
6
FB
5
0.1
470P
C5723
C5725
0
D5732
50V56
C5724
B0BC035A0007
C5737
R5750
0
2/21/2
SA-AK280EB/EG/EP SMPS CIRCUIT
R5731
470P
47K
R5733
C5730
50V1
C5726
0.1
OLP/SS
4
VCC
GND
3
S
2
1
D
R5726 82
2
3
6
312
0.01
C5801
C5805
35V2200
C5821 0.01
C5808
35V2200
C5819 0.01
C5813
35V470
D5805
B0EAMM000057
C5824
25V470
R5807
330
2.2K
R5808
330
R5810
330
R5817
B1GBCFLL0037
1 2 3 4 5 6 7 8 9 10 11 12 13 14
11
Page 12
3.4. D-AMP Circuit for (SA-AK280EE)
B
I
H
With reference to original service manual (section 18.6) on page 101 for Model No. SA-AK280EE-K
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
SCHEMATIC DIAGRAM - 9
D-AMP CIRCUIT
A
: +B SIGNAL LINE : -B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
CHANGE
IC5000
C1BA00000487
C1BA00000492
JK5001
B
TO
SPEAKERS
4
FL-
3
FL+
2
FR-
1
FR+
C
TO
SMPS CIRCUIT
(H5801*)
IN SCHEMATIC
DIAGRAM - 10
CN5500
VDD
VDD
GND
GND
VSS
VSS
FAN GND
FAN DC
8
0.1
C5518
7
6
5
0.1
4
C5519
3
2
1
0.1
C5515
0.1
C5514
D
CN5050
1
E
F
TO
MAIN CIRCUIT
(CN2341A)
IN SCHEMATIC
DIAGRAM - 3
17
FRONTL
SIGNAL A_GND
FRONT R
REAR R/SUBWOOFER
MUTE F_SW (MODE 2)
AGND
AGND
SURROUND L
AGND
SURROUND R
REAR L/AGND
CENTER
MUTE S_C (MODE 1)
FHOP
ECO/FAN
DC_DET
MOD_DA
K5251
0
K5256
0
ADD
(K5256)
3300P
3300P
C5150
K5302
C5151
0
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
G
FAN_DC
IN+_FR
MUTE F_SW
DC_DET
MOD_DA
FL-
FL+
FR-
FR+
OSC
IN+_FR
1000P
C5001
R5010
10
VDDA0
0.1
C5520
C5511
35V470
0.1
C5521
C5510
35V470
VSSA0
R5011
10
R5504
22
0.01C5550
0.01C5556
100PC5557
390PC5551
100PC5553
390PC5552
D5502
MA2J11100L
X5501
H2A7003A0011
X5500
H2A6023A0011
47P
C5558
D5501
MA2J11100L
R5506
1M
R5507
1M
47P
C5559
OSC
R5000
C5002
5.6K
0.47
R5002
C5004
5.6K
0.47
K5001
0
IC5500
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
1
1A
2
1Y
3
2A
4
2Y
5
6
3Y
7
GND
IN1+
C5006
330P
CHANGE
C5040
100V22
VCC
6A
6Y
5A
5Y3A
4A
4Y
14
13
12
11
10
9
8
SGND1
PROT
VDDP1
R5514
100
VDDA1
C5024
0.1
1M
R5508
C5025
0.1
D5503
VSSA1
C5030
220P
33P
0.1C5018
R5510
470
10
MAZ80510ML
C5555
R5512
0
0.1C5019
0.1
C5554
C5010
220P
FAN_DC
OSC
ADD
(R5512)
IN1-
R5505
AUDIO DIGITAL POWER AMP
OUT1
VSSP1
BOOT1
C5008
0.015
R5004
10
0.1
C5012
C5020
CHANGE
220P
0.22
C5031
STABI
OUT2
BOOT2
VSSP2
C5009
0.47
0.015
R5005
10
0.1
C5022
C5013
220P
C5011
220P
VDDP2
0.1C5021
VSSD
0.1C5023
VSSA2
C5027
0.1
SGND2
19 21 23222010213 789456 12 1514 17 18161311
C5028
ADD
(C5027)
IN2+
MODE
IN2-
VDDA2
R5008
C5007
330P
0.1
5.6K
R5001
0.47
C5003
C5000
1000P
100
5.6K
R5003
C5005
TH5001
D4CC11040013
0.47
1
L5000
G0A150L00003
Q5603
B1ADCE000012
SWITCH
10K
R5608
2
43
D5002
D5004
D5001
D5003
C5032
0.68
C5015
0.68
C5014
B0HCSP000001
B0HCSP000001
B0HCSP000001
B0HCSP000001
R5611
2.7K
1000P
C5601
22
R5007
0.1
C5017
0.1
C5016
22
R5006
16V10
MODE
5.6K
R5030
5.6K
R5031
CHANGE
ADD
(K5781, K5782)
(C5450)
DC_DET
G0B9R5K00003
G0B9R5K00004
C5450
0.1
0
L5001
1
1
L5002
C5445
0.1
32 1
2
1000P
C5050
43
1000P
C5051
43
1000P
C5052
2
1000P
C5053
K5782
0
K5781
0
321
ZJ5400
DELETE
(C5446,C5447,C5448,C5449)
ZJ5410
MODE
FR_+
FR+
FR-
FL-
FL+
FL_+
B
C
D
E
F
Q5102
B1ABCF000176
DC DETECT
6.8K
R5110
C5133
6.3V100
R5019
0.1
C5033
R5022
R5023
1.2K
1.2K
R5671
FR_+
0
FL_+
G
68KR5020
68K
MOD_DA
MUTE F_SW
DELETE
(IC5501,C5560,C5561,K5780,R5511)
R5602
R5609
10K
R5603
10K
10K
Q5604
B1ABCF000176
SWITCH
2.7K
R5604
Q5101
B1ABCF000176
DC DETECT
Q5601
B1ABCF000176
SWITCH
H
SA-AK280EE D-AMP CIRCUIT
H
1 2 3 4 5 6 7 8 9 10 11 12 13 14
12
Page 13
3.5. SMPS Circuit for (SA-AK280EE)
H
B
I
With reference to original service manual (section 18.7) on page 102 for Model No. SA-AK280EE-K
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
SCHEMATIC DIAGRAM - 10
SMPS CIRCUIT
: +B SIGNAL LINE : -B SIGNAL LINE
P1
1
B
D5809
MA2J11100L
FAN_18V
AM_BP
PCONT
DC_18V
-13V
DCDET
SYS6V
SYNC
DCDET
FAN_18V
-30V_SENSE
+30V_SENSE
DCDET
DC_18V
AM_BP
R5825
1K
Q5803
2SC3940ARA
SWITCHING
-13V
FAN_18V
+30V_SENSE
-30V_SENSE
SYS6V
PCONT
R5822
R5821
R5820
R5824
R5823
91
91
91
91
91
2SA207700L
C5817
100V0.22
8.2K
R5814
Q5860
TRANSFORMER
TEMP DETECT
R5800
R5801
10K
QR5801
UNR221400L
DC DETECT
2.7K
R5802
0
R5803
R5806
47K
R5804
C5818
2.2K
R5805
12K
D5807
MA2J11100L
QR5802
B1GDCFGA0018
DC DETECT
0.1
C5810
IC5801
C0DABFC00002
SHUNT REGULATOR
15K
0.1
TO
D-AMP CIRCUIT
(CN5500)
IN SCHEMATIC
DIAGRAM - 9
C
D
E
F
TO
MAIN CIRCUIT
(CN2701*)
IN SCHEMATIC
DIAGRAM - 3
H5801*
+30V_SENSE
+30V_SENSE
-30V_SENSE
-30V_SENSE
CN5802
+18V.-12V_GND
+18V.-12V_GND
GND
GND
FAN_GND
FAN_18V
AM_BP
PCONT
DC18V
DC18V
-13V
DCDET
SYS_GND
SYS6V
SYNC
K1 0
K2
K4
C5896
0.1
0
0
+30V_SENSE
0.1
C5831
0.1
C5832
C5823
0.1
C5812
0.1
C5815
0.1
-30V_SENSE
8
7
6
5
4
3
2
1
11
10
9
8
7
6
5
4
3
2
1
G
H
Q5861 - Q5862
B1ABCF000176
TRANSFORMER TEMP DETECT
10K3K
R5862
Q5861
10K
R5861
R5860
C5870
10K
R5864
0.1
120K
R5841
R5840
82K
C
1
3
A
2
R
R5863
C5869
0.1
C5800
0.01
10K
0
C5826
0.01
R5811
R5816
C5825
0
1.5K
1.5K
0.1
Q5862
2.2K
R5832
2.2K
R5834
1
2
3
ZJ5801
CHANGE
2.7K
R5815
B1ABCF000176
FEED BACK CONTROL
D5806
MAZ80750ML
C5804
0.01
Q5802
D5801
B0HBSM000043
0.01
C5802
312
D5802
B0HBSM000043
C5816
25V470
R5809
330
C5803
0.01
24K
R5813
8.2K
R5812
TH5860
C5820 0.01
C5822 0.01
D5803
B0HFRJ000012
PC5720
B3PBA0000402
1
2
FEED BACK
PC5701
B3PBA0000402
1
2
FEED BACK
QR5810
INVERTER
D4CC11040013
D5804
B0EAMM000057
4
3
4
3
T5701
ETS42BN1A6AD
MAIN TRANSFORMER
10
-30V
11
AMPGND
12
13
14
+30V
15
+FAN 18V
GND
16
+18V
17
18
-12V
R5730
DRAIN
2SC3940ARA
LIMITING SWITCH
B1ABCF000176
LIMITING SWITCH
1K
D5725
B0BC6R100010
VIN
VCC
9
8
7
6
5
4
3
2
1
Q5720
CURRENT
Q5722
CURRENT
R5720
22
R5703
100K
D5731
B0EAMM000057
D5721
MAZ81800ML
R5721
10K
C5720
0.1
D5722
B0BC019A0007
D5723
MA2J11100L
Q5720
MA2J11100L
R5702
100K
D5702
B0ZAZ0000052
120
R5724
1K
R5723
D5728
Q5722
C5728
1000P
100K
R5728
C5713
3
21
Q5721
2SA207700L
SWITCHING
B0EAMM000057
MA2J11100L
220P
C5721
10K
R5729
0.01
D5726
B0EAKM000117
D5729
R5722
1K
D5724
R5725
C5700
F1BAF1020020
1000P
0
1000P
C5722
32 1
ZJ5803
D5727
MA2J11100L
TO SMPS
SECTION (2/2)
C5HACYY00003
SWITCHING REGULATOR
0.1
470P
C5730
C5723
C5725
D5732
B0BC035A0007
R5750
0
0
50V56
C5724
R5731
C5737
470P
2/21/2
SA-AK280EE SMPS CIRCUIT
47K
R5733
50V1
C5726
R5732
100
0.1
R5726 82
IC5701
OCP/BD
7
6
FB
5
OLP/SS
4
VCC
GND
3
S
2
1
D
2
3
6
312
0.01
C5801
C5805
35V2200
C5821 0.01
C5808
35V2200
C5819 0.01
C5813
35V470
D5805
B0EAMM000057
C5824
25V470
R5807
330
2.2K
R5808
330
R5810
330
R5817
B1GBCFLL0037
1 2 3 4 5 6 7 8 9 10 11 12 13 14
13
Page 14
3.6. D-AMP Circuit for (SA-AK280GN)
B
I
H
With reference to original service manual (section 18.6) on page 101 for Model No. SA-AK280GN-K
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
SCHEMATIC DIAGRAM - 9
D-AMP CIRCUIT
A
: +B SIGNAL LINE : -B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
CHANGE
IC5000
C1BA00000487
C1BA00000492
JK5001
B
TO
SPEAKERS
4
FL-
3
FL+
2
FR-
1
FR+
C
TO
SMPS CIRCUIT
(H5801*)
IN SCHEMATIC
DIAGRAM - 10
CN5500
VDD
VDD
GND
GND
VSS
VSS
FAN GND
FAN DC
8
0.1
C5518
7
6
5
0.1
4
C5519
3
2
1
0.1
C5515
0.1
C5514
D
CN5050
1
E
F
TO
MAIN CIRCUIT
(CN2341A)
IN SCHEMATIC
DIAGRAM - 3
17
FRONTL
SIGNAL A_GND
FRONT R
REAR R/SUBWOOFER
MUTE F_SW (MODE 2)
AGND
AGND
SURROUND L
AGND
SURROUND R
REAR L/AGND
CENTER
MUTE S_C (MODE 1)
FHOP
ECO/FAN
DC_DET
MOD_DA
K5251
0
K5256
0
ADD
(K5256)
3300P
3300P
C5150
K5302
C5151
0
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
G
FAN_DC
IN+_FR
MUTE F_SW
DC_DET
MOD_DA
FL-
FL+
FR-
FR+
OSC
IN+_FR
1000P
C5001
R5010
10
VDDA0
0.1
C5520
C5511
35V470
0.1
C5521
C5510
35V470
VSSA0
R5011
10
R5504
22
0.01C5550
0.01C5556
100PC5557
390PC5551
100PC5553
390PC5552
D5502
MA2J11100L
X5501
H2A7003A0011
X5500
H2A6023A0011
47P
C5558
D5501
MA2J11100L
R5506
1M
R5507
1M
47P
C5559
OSC
R5000
C5002
5.6K
0.47
R5002
C5004
5.6K
0.47
K5001
0
IC5500
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
1
1A
2
1Y
3
2A
4
2Y
5
6
3Y
7
GND
IN1+
C5006
C5040
VCC
330P
100V22
6A
6Y
5A
5Y3A
4A
4Y
CHANGE
14
13
12
11
10
9
8
SGND1
PROT
VDDP1
R5514
100
VDDA1
C5024
0.1
1M
R5508
C5025
0.1
D5503
VSSA1
C5030
220P
33P
0.1C5018
R5510
470
10
MAZ80510ML
C5555
R5512
0
0.1C5019
0.1
C5554
C5010
220P
FAN_DC
OSC
ADD
(R5512)
IN1-
R5505
AUDIO DIGITAL POWER AMP
OUT1
VSSP1
BOOT1
C5008
0.015
R5004
10
0.1
C5012
C5020
CHANGE
220P
0.22
C5031
STABI
OUT2
BOOT2
VSSP2
C5009
0.47
0.015
R5005
10
0.1
C5022
C5013
220P
C5011
220P
VDDP2
0.1C5021
VSSD
0.1C5023
VSSA2
C5027
0.1
SGND2
19 21 23222010213 789456 12 1514 17 18161311
C5028
ADD
(C5027)
IN2+
MODE
IN2-
VDDA2
R5008
C5007
330P
0.1
5.6K
R5001
0.47
C5003
C5000
1000P
100
5.6K
R5003
C5005
TH5001
D4CC11040013
0.47
1
L5000
G0A150L00003
Q5603
B1ADCE000012
SWITCH
10K
R5608
2
43
D5002
D5004
D5001
D5003
C5032
0.68
C5015
0.68
C5014
B0HCSP000001
B0HCSP000001
B0HCSP000001
B0HCSP000001
R5611
2.7K
1000P
C5601
22
R5007
0.1
C5017
0.1
C5016
22
R5006
16V10
MODE
5.6K
R5030
5.6K
R5031
CHANGE
ADD
(K5781, K5782)
(C5450)
DC_DET
G0B9R5K00003
G0B9R5K00004
C5450
0.1
0
L5001
1
1
L5002
C5445
0.1
321
2
1000P
C5050
43
1000P
C5051
43
1000P
C5052
2
1000P
C5053
K5782
0
K5781
0
321
ZJ5400
DELETE
(C5446,C5447,C5448,C5449)
ZJ5410
MODE
FR_+
FR+
FR-
FL-
FL+
FL_+
B
C
D
E
F
Q5102
B1ABCF000176
DC DETECT
6.8K
R5110
C5133
6.3V100
R5019
0.1
C5033
R5022
R5023
1.2K
1.2K
R5671
FR_+
0
FL_+
G
68KR5020
68K
R5602
MOD_DA
MUTE F_SW
DELETE
(IC5501,C5560,C5561,K5780,R5511)
10K
R5609
10K
10K
R5603
Q5604
B1ABCF000176
SWITCH
2.7K
R5604
Q5101
B1ABCF000176
DC DETECT
Q5601
B1ABCF000176
SWITCH
H
SA-AK280GN D-AMP CIRCUIT
H
1 2 3 4 5 6 7 8 9 10 11 12 13 14
14
Page 15
3.7. SMPS Circuit for (SA-AK280GN)
H
B
I
With reference to original service manual (section 18.7) on page 102 for Model No. SA-AK280GN-K
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
SCHEMATIC DIAGRAM - 10
SMPS CIRCUIT
: +B SIGNAL LINE : -B SIGNAL LINE
P1
1
B
D5809
MA2J11100L
FAN_18V
AM_BP
PCONT
DC_18V
-13V
DCDET
SYS6V
SYNC
DCDET
FAN_18V
-30V_SENSE
+30V_SENSE
DCDET
DC_18V
AM_BP
R5825
1K
Q5803
2SC3940ARA
SWITCHING
-13V
FAN_18V
+30V_SENSE
-30V_SENSE
SYS6V
PCONT
R5822
R5821
R5820
R5824
R5823
91
91
91
91
91
2SA207700L
C5817
100V0.22
8.2K
R5814
Q5860
TRANSFORMER
TEMP DETECT
R5800
R5801
10K
QR5801
UNR221400L
DC DETECT
2.7K
R5802
0
R5803
R5806
47K
R5804
C5818
2.2K
R5805
12K
D5807
MA2J11100L
QR5802
B1GDCFGA0018
DC DETECT
0.1
C5810
IC5801
C0DABFC00002
SHUNT REGULATOR
15K
0.1
TO
D-AMP CIRCUIT
(CN5500)
IN SCHEMATIC
DIAGRAM - 9
C
D
E
F
TO
MAIN CIRCUIT
(CN2701*)
IN SCHEMATIC
DIAGRAM - 3
H5801*
+30V_SENSE
+30V_SENSE
-30V_SENSE
-30V_SENSE
CN5802
+18V.-12V_GND
+18V.-12V_GND
GND
GND
FAN_GND
FAN_18V
AM_BP
PCONT
DC18V
DC18V
-13V
DCDET
SYS_GND
SYS6V
SYNC
K1 0
K2
K4
C5896
0.1
0
0
+30V_SENSE
0.1
C5831
0.1
C5832
C5823
0.1
C5812
0.1
C5815
0.1
-30V_SENSE
8
7
6
5
4
3
2
1
11
10
9
8
7
6
5
4
3
2
1
G
H
Q5861 - Q5862
B1ABCF000176
TRANSFORMER TEMP DETECT
10K3K
R5862
Q5861
10K
R5861
R5860
C5870
10K
R5864
0.1
120K
R5841
R5840
82K
C
1
3
A
2
R
R5863
C5869
C5800
0.01
0.1
0
10K
0.01
C5826
0
1.5K
R5811
1.5K
R5816
0.1
C5825
Q5862
2.2K
R5832
2.2K
R5834
1
2
3
ZJ5801
CHANGE
2.7K
R5815
B1ABCF000176
FEED BACK CONTROL
D5806
MAZ80750ML
C5804
0.01
Q5802
D5801
B0HBSM000043
0.01
C5802
312
D5802
B0HBSM000043
C5816
25V470
R5809
330
C5803
0.01
24K
R5813
8.2K
R5812
TH5860
C5820 0.01
C5822 0.01
D5803
B0HFRJ000012
PC5720
B3PBA0000402
1
2
FEED BACK
PC5701
B3PBA0000402
1
2
FEED BACK
QR5810
INVERTER
D4CC11040013
D5804
B0EAMM000057
4
3
4
3
T5701
ETS42BN1A6AD
MAIN TRANSFORMER
10
-30V
11
AMPGND
12
13
14
+30V
15
+FAN 18V
GND
16
+18V
17
18
-12V
R5730
DRAIN
2SC3940ARA
LIMITING SWITCH
B1ABCF000176
LIMITING SWITCH
1K
D5725
B0BC6R100010
VIN
VCC
9
8
7
6
5
4
3
2
1
Q5720
CURRENT
Q5722
CURRENT
R5720
22
R5703
100K
D5731
B0EAMM000057
D5721
MAZ81800ML
R5721
10K
C5720
0.1
D5722
B0BC019A0007
D5723
MA2J11100L
Q5720
MA2J11100L
R5702
100K
D5702
B0ZAZ0000052
120
R5724
1K
R5723
D5728
Q5722
C5728
1000P
100K
R5728
C5713
3
21
Q5721
2SA207700L
SWITCHING
B0EAMM000057
MA2J11100L
220P
C5721
10K
R5729
0.01
D5726
B0EAKM000117
D5729
R5722
1K
D5724
R5725
C5700
F1BAF1020020
1000P
0
1000P
C5722
32 1
ZJ5803
D5727
MA2J11100L
TO SMPS
SECTION (2/2)
C5HACYY00003
SWITCHING REGULATOR
0.1
470P
C5730
C5723
C5725
D5732
B0BC035A0007
R5750
0
0
50V56
C5724
R5731
C5737
470P
2/21/2
SA-AK280GN SMPS CIRCUIT
47K
R5733
50V1
C5726
0.1
R5732
100
IC5701
OCP/BD
7
6
FB
5
OLP/SS
4
VCC
GND
3
S
2
1
D
R5726 82
2
3
6
312
0.01
C5801
C5805
35V2200
C5821 0.01
C5808
35V2200
C5819 0.01
C5813
35V470
D5805
B0EAMM000057
C5824
25V470
R5807
330
2.2K
R5808
330
R5810
330
R5817
B1GBCFLL0037
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15
Page 16
3.8. D-AMP Circuit for (SA-AK280PH/PN)
B
I
H
With reference to original service manual (section 18.6) on page 103 for Model No. SA-AK280PH/PN-K
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
SCHEMATIC DIAGRAM - 9
D-AMP CIRCUIT
: +B SIGNAL LINE : -B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
A
CHANGE
IC5000
C1BA00000487
C1BA00000492
JK5001
B
TO
SPEAKERS
4
FL-
3
FL+
2
FR-
1
FR+
C
TO
SMPS CIRCUIT
(H5801*)
IN SCHEMATIC
DIAGRAM - 10
CN5500
VDD
VDD
GND
GND
VSS
VSS
FAN GND
FAN DC
8
0.1
C5518
7
6
5
0.1
4
C5519
3
2
1
0.1
C5515
0.1
C5514
D
CN5050
1
E
F
TO
MAIN CIRCUIT
(CN2341A)
IN SCHEMATIC
DIAGRAM - 3
17
FRONTL
SIGNAL A_GND
FRONT R
REAR R/SUBWOOFER
MUTE F_SW (MODE 2)
AGND
AGND
SURROUND L
AGND
SURROUND R
REAR L/AGND
CENTER
MUTE S_C (MODE 1)
FHOP
ECO/FAN
DC_DET
MOD_DA
K5251
0
0
K5256
ADD
(K5256)
3300P
3300P
C5150
K5302
C5151
0
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
G
FAN_DC
IN+_FR
MUTE F_SW
DC_DET
MOD_DA
FL-
FL+
FR-
FR+
OSC
IN+_FR
1000P
C5001
R5010
10
VDDA0
0.1
C5520
C5511
35V470
0.1
C5521
C5510
35V470
VSSA0
R5011
10
R5504
22
0.01C5550
0.01C5556
100PC5557
390PC5551
100PC5553
390PC5552
D5502
MA2J11100L
X5501
H2A7003A0011
X5500
H2A6023A0011
47P
C5558
D5501
MA2J11100L
R5506
1M
R5507
1M
47P
C5559
OSC
R5000
C5002
5.6K
0.47
R5002
C5004
5.6K
0.47
K5001
0
IC5500
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
1
1A
2
1Y
3
2A
4
2Y
5
6
3Y
7
GND
IN1+
C5006
330P
CHANGE
C5040
100V22
VCC
6A
6Y
5A
5Y3A
4A
4Y
14
13
12
11
10
9
8
SGND1
PROT
VDDP1
R5514
100
VDDA1
C5024
0.1
1M
R5508
C5025
0.1
D5503
VSSA1
C5030
220P
33P
0.1C5018
R5510
470
10
MAZ80510ML
C5555
R5512
0
0.1C5019
0.1
C5554
C5010
220P
FAN_DC
OSC
ADD
(R5512)
IN1-
R5505
AUDIO DIGITAL POWER AMP
OUT1
VSSP1
BOOT1
C5008
0.015
R5004
10
0.1
C5012
C5020
CHANGE
220P
0.22
C5031
STABI
OUT2
BOOT2
VSSP2
C5009
0.47
0.015
R5005
10
0.1
C5022
C5013
220P
VSSD
VDDP2
C5011
0.1C5023
0.1C5021
220P
MOD_DA
MUTE F_SW
DELETE
(IC5501,C5560,C5561,K5780,R5511)
VSSA2
C5027
0.1
SGND2
19 21 23222010213 789456 12 1514 17 18161311
C5028
ADD
(C5027)
IN2+
MODE
IN2-
VDDA2
R5008
C5007
330P
0.1
5.6K
R5001
0.47
C5003
C5000
1000P
R5602
R5609
100
5.6K
R5003
D4CC11040013
0.47
C5005
1
L5000
G0A150L00003
Q5603
B1ADCE000012
SWITCH
10K
R5608
10K
R5603
10K
10K
TH5001
B1ABCF000176
2
43
D5002
D5004
D5001
D5003
R5611
2.7K
Q5604
SWITCH
C5032
0.68
C5015
0.68
C5014
B0HCSP000001
B0HCSP000001
B0HCSP000001
B0HCSP000001
1000P
C5601
22
R5007
0.1
C5017
0.1
C5016
22
R5006
16V10
5.6K
R5030
5.6K
R5031
MODE
2.7K
R5604
Q5101
B1ABCF000176
DC DETECT
Q5601
B1ABCF000176
SWITCH
CHANGE
ADD
(K5781, K5782)
(C5450)
DC_DET
6.8K
R5110
L5001
G0B9R5K00003
1
1
L5002
G0B9R5K00004
C5445
0.1
C5450
0.1
0
321
DELETE
(C5446,C5447,C5448,C5449)
Q5102
B1ABCF000176
DC DETECT
C5133
6.3V100
2
43
43
2
ZJ5400
R5019
K5782
0
K5781
C5033
0
0.1
C5051
C5052
C5053
68KR5020
68K
1000P
1000P
1000P
1000P
C5050
321
1.2K
R5022
1.2K
R5023
ZJ5410
R5671
MODE
FR_+
FR+
FR-
FL-
FL+
FL_+
FR_+
FL_+
0
B
C
D
E
F
G
H
SA-AK280PH/PN D-AMP CIRCUIT
H
1 2 3 4 5 6 7 8 9 10 11 12 13 14
16
Page 17
3.9. D-AMP Circuit for (SA-AK280PR)
B
I
H
With reference to original service manual (section 18.6) on page 103 for Model No. SA-AK280PR-K
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
SCHEMATIC DIAGRAM - 9
D-AMP CIRCUIT
A
: +B SIGNAL LINE : -B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
CHANGE
IC5000
C1BA00000487
C1BA00000492
JK5001
B
TO
SPEAKERS
4
FL-
3
FL+
2
FR-
1
FR+
C
TO
SMPS CIRCUIT
(H5801*)
IN SCHEMATIC
DIAGRAM - 10
CN5500
VDD
VDD
GND
GND
VSS
VSS
FAN GND
FAN DC
8
0.1
C5518
7
6
5
0.1
4
C5519
3
2
1
C5515
C5514
0.1
0.1
D
CN5050
1
E
F
TO
MAIN CIRCUIT
(CN2341A)
IN SCHEMATIC
DIAGRAM - 3
17
FRONTL
SIGNAL A_GND
FRONT R
REAR R/SUBWOOFER
MUTE F_SW (MODE 2)
AGND
AGND
SURROUND L
AGND
SURROUND R
REAR L/AGND
CENTER
MUTE S_C (MODE 1)
FHOP
ECO/FAN
DC_DET
MOD_DA
K5251
0
0
K5256
ADD
(K5256)
3300P
3300P
C5150
K5302
C5151
0
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
G
FAN_DC
IN+_FR
MUTE F_SW
DC_DET
MOD_DA
FL-
FL+
FR-
FR+
OSC
IN+_FR
1000P
C5001
R5010
10
VDDA0
0.1
C5520
C5511
35V470
0.1
C5521
C5510
35V470
VSSA0
R5011
10
R5504
22
0.01C5550
0.01C5556
100PC5557
390PC5551
100PC5553
390PC5552
D5502
MA2J11100L
X5501
H2A7003A0011
X5500
H2A6023A0011
47P
C5558
D5501
MA2J11100L
R5506
1M
R5507
1M
47P
C5559
OSC
R5000
C5002
5.6K
0.47
R5002
C5004
5.6K
0.47
K5001
0
IC5500
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
1
1A
VCC
2
1Y
3
2A
4
2Y
5
6
3Y
7
GND
IN1+
C5006
330P
CHANGE
C5040
100V22
14
6A
13
6Y
12
5A
11
10
5Y3A
4A
4Y
SGND1
PROT
VDDP1
VDDA1
C5024
R5514
VSSA1
C5030
C5025
220P
0.1
0.1
33P
C5010
0.1C5019
0.1C5018
220P
R5510
470
FAN_DC
OSC
10
0.1
D5503
MAZ80510ML
C5555
C5554
1M
R5508
R5512
0
ADD
(R5512)
IN1-
9
R5505
100
8
AUDIO DIGITAL POWER AMP
OUT1
VSSP1
BOOT1
C5008
0.015
R5004
10
0.1
C5012
C5020
CHANGE
220P
0.22
C5031
STABI
OUT2
BOOT2
VSSP2
C5009
0.47
0.015
R5005
10
0.1
C5022
C5013
220P
C5011
220P
VDDP2
0.1C5021
VSSD
0.1C5023
VSSA2
C5027
0.1
SGND2
19 21 23222010213 789456 12 1514 17 18161311
C5028
0.1
ADD
(C5027)
VDDA2
R5001
C5003
5.6K
0.47
IN2-
C5007
C5000
1000P
IN2+
MODE
330P
5.6K
R5003
0.47
C5005
1
G0A150L00003
Q5603
B1ADCE000012
SWITCH
10K
R5608
R5008
100
TH5001
D4CC11040013
2
43
L5000
D5002
D5004
D5001
D5003
C5032
0.68
C5015
0.68
C5014
B0HCSP000001
B0HCSP000001
B0HCSP000001
B0HCSP000001
R5611
2.7K
1000P
C5601
22
R5007
0.1
C5017
0.1
C5016
22
R5006
16V10
MODE
5.6K
R5030
5.6K
R5031
CHANGE
ADD
(K5781, K5782)
(C5450)
DC_DET
G0B9R5K00003
1
1
G0B9R5K00004
C5450
0.1
0
L5001
2
43
43
2
L5002
C5445
0.1
321
ZJ5400
DELETE
(C5446,C5447,C5448,C5449)
K5782
K5781
0
0
1000P
C5051
1000P
C5052
1000P
C5053
1000P
C5050
321
MODE
FR_+
FR+
FR-
FL-
FL+
FL_+
ZJ5410
B
C
D
E
F
Q5102
B1ABCF000176
DC DETECT
6.8K
R5110
C5133
6.3V100
R5019
0.1
C5033
1.2K
R5022
1.2K
R5023
R5671
FR_+
0
FL_+
G
68KR5020
68K
R5602
MOD_DA
MUTE F_SW
DELETE
(IC5501,C5560,C5561,K5780,R5511)
10K
R5609
10K
10K
R5603
Q5604
B1ABCF000176
SWITCH
2.7K
R5604
Q5101
B1ABCF000176
DC DETECT
Q5601
B1ABCF000176
SWITCH
H
SA-AK280PR D-AMP CIRCUIT
H
1 2 3 4 5 6 7 8 9 10 11 12 13 14
17
Page 18
4 Printed Circuit Board
4.1. D-Amp P.C.B. for (SA-AK180PN/PU)
With reference to original service manual (section 17.5) on page 88 for Model No. SA-AK180PN/PU-K.
F
D-AMP P.C.B. (REPX0727F)
H
G
F
E
D
C
B
HEATSINK
Q5603
E
R5608
C
K5256
R5005
3
K5062
1315
8
IC5500
C5011
15
C5023
D5002
W5051
C5514
J5500
R5506
X5501
C5009
W5043
C5031
W5039
R5031
D5501
17
14
R5512
R5004
C5013
C5012
IC5000
C5020
R5006
W5042
K5302
D5502
C5554
10
C5018
C5022
C5014
W5041
Q5101
C5556
C5555
C5008
C5025
R5030
E
W5785
W5070
R5504
C5557
C5550
C5010
C5017
C
21436587109121114
D5503
W5033
C5030
C5019
R5007
C5133
B
W5032
C5001
C5024
5
C5016
1
24
C5015
E
C
K5782
K5781
C5002
C5004
2
C5006
L5000
D5001
B
Q5102
W5035
R5000
1
D5003
W5021
R5110
C5445
R5002
W5023
W5019
R5023
C5033
W5075
W5016
W5014
321
W5012
W5024
W5017
W5036
W5007
W5022
W5076
W5071
W5037
W5077
W5009
W5038
W5020
D5004
W5031
W5030
W5029
ZJ5410
W5006
W5008
K5011
K5013
W5026
W5015
W5028
W5027
W5025
R5671
W5784
W5010
W5011
L5001
L5002
W5004
K5034
R5020
1
R5019
3
R5022
C5053
W5003
21
C5050
43
2
4
W5780
W5002
W5001
JK5001
1-FR+
C5051
C5052
3-FL+
2-FR-
4-FL-
SPEAKERS
W5048
C5553
C5558
C5003
C5007
R5008
TH5001
J5501
W5061
W5781
C5559
K5001
C5005
R5003
R5001
C5028
23
C5021
W5054
C5150
CN5050
W5060
R5011
C5515
C5151
X5500
20
W5056
W5052
17
R5507
R5505
R5508
R5514
C5027
R5010
W5058
W5034
16
W5049
C5601
W5783
W5782
W5047
W5063
W5064
CN5500
K5555
ZJ5400
8
7
6
5
4
3
2
1
W5069
31 2
Q5604
W5068
W5067
W5066
W5018
B
R5611
R5603
K5251
Q5601
C5450
W5045
W5044
W5055
E
C
C
B
W5053
C5519
B
E
R5604
R5602
W5046
R5510
R5609
W5059
C5518
W5050
C5521
C5520
C5551
K5005
C5510
C5552
C5000
C5032
C5040
C5511
A
PbF
0608B-1
0608B-1
ADD
(K5781, K5782)
SA-AK180PN/PU
D-AMP P.C.B.
1
2
3
4
5
6
7
8
9
10 1 12 13
1
18
Page 19
4.2. D-Amp P.C.B. for (SA-AK280EB/EG/EP)
With reference to original service manual (section 19.5) on page 109 for Model No. SA-AK280EB/EG/EP-K.
CHANGE TO
D-AMP P.C.B. (REPX0742A)
H
DELETE
(C5449)
(REPX0727F)
ADD
(R5512)
DELETE
(IC5501, C5560,
C5561, R5511)
DELETE
(C5448)
H
DELETE
(K5780)
DELETE
(C5447)
G
F
E
D
C
B
ADD
(C5027)
ADD
(K5256)
HEATSINK
Q5603
E
R5608
C
K5256
R5005
3
K5062
1315
8
IC5500
C5011
15
C5023
D5002
W5051
C5514
J5500
R5506
X5501
C5009
W5043
C5031
W5039
R5031
D5501
17
14
R5512
R5004
C5013
C5012
IC5000
C5020
R5006
W5042
K5302
D5502
C5554
10
C5018
C5022
C5014
W5041
Q5101
C5556
C5555
C5008
R5030
E
W5785
W5070
R5504
C5557
C5550
W5033
C5010
C5025
C5017
C5133
B
C
21436587109121114
D5503
C5030
C5019
R5007
W5032
C5001
C5024
5
C5016
E
1
24
C5015
C
K5782
K5781
C5002
C5004
2
C5006
L5000
D5001
B
Q5102
W5035
R5000
1
D5003
W5021
R5110
C5445
R5002
W5023
W5019
R5023
C5033
W5016
W5014
321
W5075
W5024
W5017
W5012
W5036
W5007
W5022
W5076
W5071
W5037
W5077
W5009
W5038
W5020
D5004
W5031
W5030
W5029
ZJ5410
W5006
W5008
K5011
K5013
W5027
W5026
W5015
W5028
W5025
R5671
W5784
W5010
W5011
L5001
L5002
W5004
K5034
W5005
W5013
R5020
R5019
W5780
W5002
W5001
W5003
21
C5050
43
R5022
1
3
2
C5053
4
JK5001
1-FR+
C5051
C5052
2-FR-
3-FL+
4-FL-
DELETE
(C5446)
SPEAKERS
W5048
C5553
C5003
C5007
R5008
TH5001
J5501
W5061
W5781
C5558
K5001
C5005
R5001
23
C5021
W5060
C5559
W5054
C5150
X5500
R5003
20
C5028
R5011
W5056
W5052
C5515
C5151
17
CN5050
R5507
R5505
R5508
R5514
C5027
R5010
W5058
W5034
16
W5049
C5601
W5783
W5782
W5047
W5063
W5064
CN5500
K5555
ZJ5400
8
7
6
5
4
3
2
1
W5069
31 2
Q5604
W5068
W5067
W5066
W5018
B
R5611
R5603
K5251
Q5601
C5450
W5045
W5044
W5055
E
C
C
E
B
W5053
C5519
B
R5604
R5602
W5046
W5059
C5518
R5510
R5609
W5050
C5521
C5520
K5005
C5510
C5551
C5032
C5511
C5552
C5000
C5040
A
PbF
0608B-1
0608B-1
ADD
(K5781, K5782)
SA-AK280EB/EG/EP
D-AMP P.C.B.
1
2
3
4
5
6
7
8
9
10 1 12 13
1
19
Page 20
4.3. D-Amp P.C.B. for (SA-AK280EE)
With reference to original service manual (section 19.5) on page 109 for Model No. SA-AK280EE-K.
CHANGE TO
D-AMP P.C.B. (REPX0742A)
H
DELETE
(C5449)
(REPX0727F)
ADD
(R5512)
DELETE
(IC5501, C5560,
C5561, R5511)
DELETE
(C5448)
H
DELETE
(K5780)
DELETE
(C5447)
G
F
E
D
C
B
ADD
(C5027)
ADD
(K5256)
HEATSINK
Q5603
E
R5608
C
K5256
R5005
3
K5062
1315
8
IC5500
C5011
15
C5023
D5002
W5051
C5514
J5500
R5506
X5501
C5009
W5043
C5031
W5039
R5031
D5501
17
14
R5512
R5004
C5013
C5012
IC5000
C5020
R5006
W5042
K5302
D5502
C5554
10
C5018
C5022
C5014
W5041
Q5101
C5556
C5555
C5008
C5025
R5030
E
W5785
W5070
R5504
C5557
C5550
C5010
C5017
C
21436587109121114
D5503
W5033
C5030
C5019
R5007
C5133
B
W5032
C5001
C5024
5
C5016
1
24
C5015
E
C
K5782
K5781
C5002
C5004
2
C5006
L5000
D5001
B
Q5102
W5035
R5000
1
D5003
W5021
R5110
C5445
R5002
W5023
W5019
R5023
C5033
W5075
W5016
W5014
321
W5012
W5024
W5017
W5036
W5007
W5022
W5076
W5071
W5037
W5077
W5009
W5038
W5020
D5004
W5031
W5030
W5029
ZJ5410
W5006
W5008
K5011
K5013
W5026
W5015
W5028
W5027
W5025
R5671
W5784
W5010
W5011
L5001
L5002
W5004
K5034
W5005
W5013
R5020
R5019
W5780
W5002
W5001
W5003
21
C5050
43
R5022
1
3
2
C5053
4
JK5001
1-FR+
C5051
C5052
2-FR-
3-FL+
4-FL-
DELETE
(C5446)
SPEAKERS
W5048
C5553
C5558
C5003
R5001
C5007
R5008
TH5001
J5501
W5061
W5781
C5559
K5001
C5005
R5003
C5028
23
C5021
R5011
W5054
C5150
CN5050
W5060
X5500
20
W5056
W5052
C5515
C5151
17
R5507
R5505
R5508
R5514
C5027
R5010
W5058
W5034
16
W5049
C5601
W5783
W5782
W5047
W5063
W5064
CN5500
K5555
ZJ5400
8
7
6
5
4
3
2
1
W5069
31 2
Q5604
W5068
W5067
W5066
W5018
B
R5611
R5603
K5251
Q5601
C5450
W5045
W5044
W5055
E
C
C
B
W5053
C5519
B
E
R5604
R5602
W5046
R5510
R5609
W5059
C5518
W5050
C5521
C5520
K5005
C5510
C5551
C5032
C5511
C5552
C5000
C5040
A
PbF
0608B-1
0608B-1
ADD
(K5781, K5782)
SA-AK280EE
D-AMP P.C.B.
1
2
3
4
5
6
7
8
9
10 1 12 13
1
20
Page 21
4.4. D-Amp P.C.B. for (SA-AK280GN)
With reference to original service manual (section 19.5) on page 109 for Model No. SA-AK280GN-K.
CHANGE TO
D-AMP P.C.B. (REPX0742A)
H
DELETE
(C5449)
(REPX0727F)
ADD
(R5512)
DELETE
(IC5501, C5560,
C5561, R5511)
DELETE
(C5448)
H
DELETE
(K5780)
DELETE
(C5447)
G
F
E
D
C
B
ADD
(C5027)
ADD
(K5256)
HEATSINK
Q5603
E
R5608
C
K5256
R5005
3
K5062
1315
8
IC5500
C5011
15
C5023
D5002
W5051
C5514
J5500
R5506
X5501
C5009
W5043
C5031
W5039
R5031
D5501
17
14
R5512
R5004
C5013
C5012
IC5000
C5020
R5006
W5042
K5302
D5502
C5554
10
C5018
C5022
C5014
W5041
Q5101
C5556
C5555
C5008
C5025
R5030
E
W5785
W5070
R5504
C5557
C5550
C5010
C5017
C
21436587109121114
D5503
W5033
C5030
C5019
R5007
C5133
B
W5032
C5001
C5024
5
C5016
E
1
24
C5015
C
K5782
K5781
C5002
C5004
2
C5006
L5000
D5001
B
Q5102
W5035
R5000
1
D5003
W5021
R5110
C5445
R5002
W5023
W5019
R5023
C5033
W5016
W5014
321
W5075
W5024
W5017
W5012
W5036
W5007
W5022
W5076
W5071
W5037
W5077
W5009
W5038
W5020
D5004
W5031
W5030
W5029
ZJ5410
W5006
W5008
K5011
K5013
W5027
W5026
W5015
W5028
W5025
R5671
W5784
W5010
W5011
L5001
L5002
W5004
K5034
W5005
W5013
R5020
R5019
W5780
W5002
W5001
W5003
21
C5050
43
R5022
1
3
2
C5053
4
JK5001
1-FR+
C5051
C5052
2-FR-
3-FL+
4-FL-
DELETE
(C5446)
SPEAKERS
W5048
C5553
C5003
C5007
R5008
TH5001
J5501
W5061
W5781
C5558
K5001
C5005
R5001
23
C5021
W5060
C5559
W5054
C5150
X5500
R5003
20
C5028
R5011
W5056
W5052
C5515
C5151
17
CN5050
R5507
R5505
R5508
R5514
C5027
R5010
W5058
W5034
16
W5049
C5601
W5783
W5782
W5047
W5063
W5064
CN5500
K5555
ZJ5400
8
7
6
5
4
3
2
1
W5069
31 2
Q5604
W5068
W5067
W5066
W5018
B
R5611
R5603
K5251
Q5601
C5450
W5045
W5044
W5055
E
C
C
E
B
W5053
C5519
B
R5604
R5602
W5046
W5059
C5518
R5510
R5609
W5050
C5521
C5520
K5005
C5510
C5551
C5032
C5511
C5552
C5000
C5040
A
PbF
0608B-1
0608B-1
ADD
(K5781, K5782)
SA-AK280GN
D-AMP P.C.B.
1
2
3
4
5
6
7
8
9
10 1 12 13
1
21
Page 22
4.5. D-Amp P.C.B. for (SA-AK280PH/PN)
With reference to original service manual (section 19.5) on page 111 for Model No. SA-AK280PH/PN-K.
CHANGE TO
D-AMP P.C.B. (REPX0742A)
H
DELETE
(C5449)
(REPX0727F)
ADD
(R5512)
DELETE
(IC5501, C5560,
C5561, R5511)
DELETE
(C5448)
H
DELETE
(K5780)
DELETE
(C5447)
G
F
E
D
C
B
ADD
(C5027)
ADD
(K5256)
HEATSINK
Q5603
E
R5608
C
K5256
R5005
3
K5062
1315
8
IC5500
C5011
15
C5023
D5002
W5051
C5514
J5500
R5506
X5501
C5009
W5043
C5031
W5039
R5031
D5501
17
14
R5512
R5004
C5013
C5012
IC5000
C5020
R5006
W5042
K5302
D5502
C5554
10
C5018
C5022
C5014
W5041
Q5101
C5556
C5555
C5008
C5025
R5030
E
W5785
W5070
R5504
C5557
C5550
C5010
C5017
C
21436587109121114
D5503
W5033
C5030
C5019
R5007
C5133
B
W5032
C5001
C5024
5
C5016
1
24
C5015
E
C
K5782
K5781
C5002
C5004
2
C5006
L5000
D5001
B
Q5102
W5035
R5000
1
D5003
W5021
R5110
C5445
R5002
W5023
W5019
R5023
C5033
W5075
W5016
W5014
321
W5012
W5024
W5017
W5036
W5007
W5022
W5076
W5071
W5037
W5077
W5009
W5038
W5020
D5004
W5031
W5030
W5029
ZJ5410
W5006
W5008
K5011
K5013
W5026
W5015
W5028
W5027
W5025
R5671
W5784
W5010
W5011
L5001
L5002
W5004
K5034
W5005
W5013
R5020
R5019
W5780
W5002
W5001
W5003
21
C5050
43
R5022
1
3
2
C5053
4
JK5001
1-FR+
C5051
C5052
2-FR-
3-FL+
4-FL-
DELETE
(C5446)
SPEAKERS
W5048
C5553
C5558
C5003
R5001
C5007
R5008
TH5001
J5501
W5061
W5781
C5559
K5001
C5005
R5003
C5028
23
C5021
R5011
W5054
C5150
CN5050
W5060
X5500
20
W5056
W5052
C5515
C5151
17
R5507
R5505
R5508
R5514
C5027
R5010
W5058
W5034
16
W5049
C5601
W5783
W5782
W5047
W5063
W5064
CN5500
K5555
ZJ5400
8
7
6
5
4
3
2
1
W5069
31 2
Q5604
W5068
W5067
W5066
W5018
B
R5611
R5603
K5251
Q5601
C5450
W5045
W5044
W5055
E
C
C
B
W5053
C5519
B
E
R5604
R5602
W5046
R5510
R5609
W5059
C5518
W5050
C5521
C5520
K5005
C5510
C5551
C5032
C5511
C5552
C5000
C5040
A
PbF
0608B-1
0608B-1
ADD
(K5781, K5782)
SA-AK280PH/PN
D-AMP P.C.B.
1
2
3
4
5
6
7
8
9
10 1 12 13
1
22
Page 23
4.6. D-Amp P.C.B. for (SA-AK280PR)
With reference to original service manual (section 19.5) on page 111 for Model No. SA-AK280PR-K.
CHANGE TO
D-AMP P.C.B. (REPX0742A)
H
DELETE
(C5449)
(REPX0727F)
ADD
(R5512)
DELETE
(IC5501, C5560,
C5561, R5511)
DELETE
(C5448)
H
DELETE
(K5780)
DELETE
(C5447)
G
F
E
D
C
B
ADD
(C5027)
ADD
(K5256)
HEATSINK
Q5603
E
R5608
C
K5256
R5005
3
K5062
1315
8
IC5500
C5011
15
C5023
D5002
W5051
C5514
J5500
R5506
X5501
C5009
W5043
C5031
W5039
R5031
D5501
17
14
R5512
R5004
C5013
C5012
IC5000
C5020
R5006
W5042
K5302
D5502
C5554
10
C5018
C5022
C5014
W5041
Q5101
C5556
C5555
C5008
C5025
R5030
E
W5785
W5070
R5504
C5557
C5550
C5010
C5017
C
21436587109121114
D5503
W5033
C5030
C5019
R5007
C5133
B
W5032
C5001
C5024
5
C5016
E
1
24
C5015
C
K5782
K5781
C5002
C5004
2
C5006
L5000
D5001
B
Q5102
W5035
R5000
1
D5003
W5021
R5110
C5445
R5002
W5023
W5019
R5023
C5033
W5016
W5014
321
W5075
W5024
W5017
W5012
W5036
W5007
W5022
W5076
W5071
W5037
W5077
W5009
W5038
W5020
D5004
W5031
W5030
W5029
ZJ5410
W5006
W5008
K5011
K5013
W5027
W5026
W5015
W5028
W5025
R5671
W5784
W5010
W5011
L5001
L5002
W5004
K5034
W5005
W5013
R5020
R5019
W5780
W5002
W5001
W5003
21
C5050
43
R5022
1
3
2
C5053
4
JK5001
1-FR+
C5051
C5052
2-FR-
3-FL+
4-FL-
DELETE
(C5446)
SPEAKERS
W5048
C5553
C5003
C5007
R5008
TH5001
J5501
W5061
W5781
C5558
K5001
C5005
R5001
23
C5021
W5060
C5559
W5054
C5150
X5500
R5003
20
C5028
R5011
W5056
W5052
C5515
C5151
17
CN5050
R5507
R5505
R5508
R5514
C5027
R5010
W5058
W5034
16
W5049
C5601
W5783
W5782
W5047
W5063
W5064
CN5500
K5555
ZJ5400
8
7
6
5
4
3
2
1
W5069
31 2
Q5604
W5068
W5067
W5066
W5018
B
R5611
R5603
K5251
Q5601
C5450
W5045
W5044
W5055
E
C
C
E
B
W5053
C5519
B
R5604
R5602
W5046
W5059
C5518
R5510
R5609
W5050
C5521
C5520
K5005
C5510
C5551
C5032
C5511
C5552
C5000
C5040
A
PbF
0608B-1
0608B-1
ADD
(K5781, K5782)
SA-AK280PR
D-AMP P.C.B.
1
2
3
4
5
6
7
8
9
10 1 12 13
1
23
Page 24
5 Replacement Parts List
Please revise the original parts list in the Service Manual to conform to the change(s) shown herein.
If new part numbers are shown, be sure to use them when ordering parts.
Please file and use this manual together with the original service manual.
5.1. Electrical Replacement Parts List
Model No. Ref. No. Original Part No. New Part No. Notes Original Part Name &
Descriptions
SA-AK180PN/PU-K C5450 F1H1H104A013 D0GBR00JA008 1/C 0.1uF 50V 0 1/16W CHANGE
K5781 - D0GBR00JA008 1/C - 0 1/16W ADD
K5782 - D0GBR00JA008 1/C - 0 1/16W ADD
SA-AK280EB/EE/
EG/EP/GN/PH/PN/
PR-K
SA-AK280EB/EE/
EG/EP/GN-K
C5030 F1H1H221A792 F1H1H330A230 1/C 220pF 50V 33pF 50V CHANGE
C5031 F1H1C224A068 ECJ1VB1C474K 1/C 0.22uF 16V 0.47uF 16V CHANGE
C5450 F1H1H104A013 D0GBR00JA008 1/C 0.1uF 50V 0 1/16W CHANGE
IC5000 C1BA00000487 C1BA00000492 1/C IC IC CHANGE
PCB4 REPX0742A REPX0727F 1/C D-AMP P.C.B D-AMP P.C.B CHANGE
C5027 - F1H1H104A013 1/C - 0.1uF 50V ADD
K5256 - D0GBR00JA008 1/C - 0 1/16W ADD
K5781 - D0GBR00JA008 1/C - 0 1/16W ADD
K5782 - D0GBR00JA008 1/C - 0 1/16W ADD
R5512 - D0GBR00JA008 1/C - 0 1/16W ADD
C5446 F1H1H104A013 - 1/C 0.1uF 50V - DELETE
C5447 F1H1H104A013 - 1/C 0.1uF 50V - DELETE
C5448 F1H1H104A013 - 1/C 0.1uF 50V - DELETE
C5449 F1H1H104A013 - 1/C 0.1uF 50V - DELETE
C5560 F1H1H104A013 - 1/C 0.1uF 50V - DELETE
C5561 F1H1H101A230 - 1/C 100pF 50V - DELETE
IC5501 C0JBAF000716 - 1/C IC - DELETE
K5780 D0GBR00JA008 - 1/C 0 1/16W - DELETE
R5511 D0GB220JA008 - 1/C 0 1/16W - DELETE
C5800 F1J2E1030004 ERJ6GEY0R00V 1/C 0.01uF 250V 0 1/8W CHANGE
C5826 F1J2E1030004 ERJ6GEY0R00V 1/C 0.01uF 250V 0 1/8W CHANGE
T.I No.ECO010754 (For Factory Reference only).
T.I No.ECO010714 (For Factory Reference only).
New Part Name &
Descriptions
Remarks
24
Page 25
T.I No.ECO010765 (For Factory Reference only).
FLE0909
25
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