Page 1
SERVICE MANUAL
POWER AMPLIFIER
ACA-2624
Page 2
Circuitry Frame
ACA-2664
ACA-2624
FL-OUT
AMP
POWER
SW101B
LPF
HPF
5 7
VR103C
FR-OUT
AMP
T151-T157
T158-T161
OFF
POWER
T162-T165
SW101A
HPF
5 7
T251-T257
T258-T261
T262-T265
LPF
OFF
RL-OUT
AMP
POWER
SW301B
LPF
HPF
3 1
VR303C
RR-OUT
AMP
T351-T357
T358-T361
OFF
POWER
T362-T365
SW301A
HPF
3 1
T451-T457
T458-T461
T462-T465
LPF
OFF
PTOTECT
T166,T167
T266,T267
T366,T367
T466,T467
CONTROL
MUTE
VEE
VCC
+/-15
T100,T200
T300,T400
T17
T01
IC02
IC03
TRANS & REGULATOR
CROSSOVER
T09,T10
30Hz-5KHz 12dB/OCT VARIABLE
13
13
75
75
POWER
T11-T16
REGULAT OR
T01-04
T22,T23
IC103A IC103B
VR103D
IC102A
3 1
IC203A IC203B
VR103A VR103B
IC102B
IC303B IC303A
VR303D
IC302B
5 7
IC403B IC403A
VR303B VR303A
IC302A
POWER
CONTROL
IC01
T07
T08
@ 50Hz
BOOST 0-12dB
INPUT
VR102B
AMP
IC101A
2 1
VR101A
L-IN
VR102A
IC101B
5 7 5 7
VR101B
R-IN
VR302A
IC301A
2 1
VR301A
RL-IN
VR302B
IC301B
5 7 3 1
VR301B
F01
RR-IN
REM
D.C.
+12V
Page 3
D
C
B
A
FL
4.7uF/50V
AV4-8.4-13
B
4.7uF/50V
FR
AV4-8.4-13
B
RL
4.7uF/50V
AV4-8.4-13
B
4.7uF/50V
RR
AV4-8.4-13
IC102A
1/2 4558
C101
R101
1K
C102
102(C)
A
C201
R201
1K
C202
102(C)
A
L101
SHORT
R116
SHORT
C301
R301
1K
C302
102(C)
A
C401
R401
1K
C402
102(C)
A A
C111
OPEN
OPEN
OPEN
OPEN
Z102
OPEN
Z202
OPEN
OPEN
Z302
OPEN
Z402
Z101
Z201
Z301
Z401
OPEN
R103
1K
R203
1K
C112
OPEN
R303
1K
R403
1K
VR101B
B20K
A
VR301B
B20K
VR301A
R104
10K
VR101A
B20K
R204
10K
R304
10K
B20K
R404
10K
5
6
3
2
R206
10K2
R406
10K2
2
3
R106
10K
IC101B
1/2 4558
R205
6
5
R306
10K
IC301A
1/2 4558
R405
R105
47K
R305
56K
47K
56K
IC101A
1/2 4558
VR102B
500KB
7
VR102A
500KB
IC301B
1/2 4558
VR302A
500KB
1
VR302B
500KB
1
7
R107
1K
3
2
R108
56K
R111
1K
R207
IC102B
1K
1/2 4558
5
6
C203
563(M)
R208
56K
R211
1K
R307
1K
5
6
C303 563(M)
R308
56K
R311
1K
IC302A
1/2 4558
R407
1K
3
2
C403
563(M)
R408
56K
R411
1K
C103
563(M)
7
IC302B
1/2 4558
R310
56K
A
R410
56K
1
C104
563(M)
1
A
C204
563(M)
R210
56K
A
563(M)
7
VR303A
C404
563(M)
R110
56K
C304
C100K
R409
68K
A
R109
68K
VR103A
C100K
R209
68K
C205
563(M)
VR303B
C100K
R309
68K
C305
563(M)
C408
563(M)
R412
10K
C405
563(M)
C108 563(M)
VR103B
C100K
R112
10K
VR103D
C100K
C105
563(M)
C208
563(M)
R212
10K
VR103C
C100K
C308
563(M)
R312
10K
VR303C
C100K
C409
104(M)
R415 1K
VR303D
C100K
R214 22K
R215 1K
A
C309
104(M)
R315 1K
A
R414
C406
104(M)
R413
10K
C109
R115 1K
C106
104(M)
R113
10K
A
C209
104(M)
C206
104(M)
R213
10K
C207
563(M)
R314
22K
C306
104(M)
R313
10K
C307
563(M)
22K
C407
563(M)
R114
104(M)
C107
563(M)
3
2
22K
3
2
5
6
5
6
3
2
5
6
3
2
IC303A
1/2 4558
IC303B
1/2 4558
5
6
IC403A
1/2 4558
IC403B
1/2 4558
7654321
R171
T161
OPEN
T260
OPEN
R270
R271
T261
OPEN
R170
T162
KTD718
R172
OPEN
R173
OPEN
T163
TKB688
T165
OPEN
T264
OPEN
T262
KTD718
R272
OPEN
R273
OPEN
T263
TKB688
T265
OPEN
VCC
VEE
VCC
VEE
T164
OPEN
R174
1K5
R274
1K5
R275
R175
30K
T166
2N5551
R176
56K
C164
100uF/16V
T266
2N5551
30K
C162
151(C)
1N4148
D151
T167
9014
PROTECTION
C262
151(C)
D251
680/2W
1N4148
O/P
PROTECTION
O/P
PROTECTION
R177
680/2W
C163
104(M)
R277
T267
9014
+15V
C249
104(C)
7
FL-AMP
HI
7
OFF
1
7
HI
LO
1
IC203B
1/2 4558
HI
LO
IC203A
1/2 4558
RL-AMP
SW301A
HI
LO
RR-AMP
SW301B
OFF
LO
FR-AMP
SW101A
SW101B
C149
104(C)
I/P
MUTE
C150
4.7uF/50V
R100
OPEN
R200
OPEN
C250
4.7uF/50V
IC103B
2/24558
IC103A
1/24558
-15V
1
OFF
1
OFF
7
R150
5.6K
2(G)
R250
5.6K
2(G)
T100
OPEN
T200
OPEN
4.7uF/50V
10uF/25V
C151
4.7uF/50V
10uF/25V
C251
C254
10uF/25V
C153
R151
22K
C154
3 (S)
1(D)
1(D)
3(S)
C253
10uF/25V
R251
22K
C152
102(C)
R252
C252
102(C)
R152
1K
+15V
1K
-15V
+15V
-15V
POWER-AMP[FL]
R156
1K
T151
5551
*
7K5
R154
7K5
1K
R153
*
5401
R155
T153
R157
100
R159
100
R161
1K
T154
5401
C155
15(C)
R158
100
R160
100
POWER-AMP[FR]
R256
1K
T251
5551
*
R253
7K5
*
R254
7K5
R255
1K
R257
100
R259
100
T253
5401
C255
R261
15(C)
1K
POWER-AMP(RL]
[SAME AS FL-CH]
POWER-AMP(RR]
[SAME AS FR-CH]
R258
100
R260
100
T254
5401
T152
5551
T252
5551
R162
15K
R262
15K
C157
47(C)
C257
47(C)
R164
100
R163
560
C156
100uF/25V
C158
47(C)
R167
100
R264
100
R263
560
C256
100uF/25V
C258
47(C)
R267
100
T155
5401
*
R165
4K7
2N5551
R166
1K8
T156
5551
T255
5401
*
R265
4K7
2N5551
R266
1K8
T256
5551
T157
T257
C159
47(C)
T158
2SC2383
T159
2SA1013
C161
47(C)
C259
47(C)
T258
2SC2383
T259
2SA1013
C261
47(C)
C160
C260
473(M)
473(M)
R168
220
R268
220
R169
OPEN
R269
OPEN
T160
OPEN
0.12/3W
0.12/3W
0.12/3W
0.12/3W
R178
4.7/0.5W
R276
56K
R278
4.7/0.5W
C263
104(M)
O/P
O/P
GND
GND
8
PROTECTION
C97
OPEN
C99
OPEN
SPK01
FRONT OUT
SPK02
REAR OUT
FLFL+
FRFL+
RLRL+
RRRR+
D
C
B
A
ACA-2624-AMP-PA4-4.SCH
1 2 3 4 5 6 78
Page 4
7654321
8
T07 2SA1013
R15
130KF
D
R44
C50
10K
104(C)
104(C)
C
R01
4K7
R02
4K7
B
T23
9014C
T01
9015C
C01
100U/16V
T22
9015C
47U/16V
C52
C51
C03
C02
100U/16V
R06
10K
T03
9014C
104(C)
T02
C08
104(C)
R03
10K
9015C
1N4148
R07
1K
C11
R16
104(C)
51KF
16
14
15
Ref
2IN-
2IN+
1IN-21IN+
3
1
R05
10
C04
100U/16V
TH01
R04
68K
50KTH
t
D01
R12
1K
JP3
OPEN
R48
56K
C06
100U/16V
C09
10U/25V
R13
27K
C05
102(M)
R08
22K
12
OUT13VCC
C12
10U/25V
T05
9014C
C211E210E1
R14
15K
R09
33K
R25
10K
9
C18GND7RT6CT5DTC4Fback
R19
4K7
R21
4K7
R23
R24
1K2
IC01
KIA494AP
T04
5401
T08
9014C
C13
51K
LED01
SAM3270
R10
15K
R17
10 1/2W
R18
4K7
R22
1K2
C07
100U/25V
473(C)
C10
47U/50V
R11
15K
F01
D17
1N5404
D08 FR154
D07 FR154
D06 FR154
D05 FR154
D13
C25-02C
R38
OPEN
C26
OPEN
D12
C25-02N
15A
15A
L03
SHORT
R41
OPEN
R42
OPEN
R43
OPEN
OPEN
OPEN
R36
*150 2W
C20
4U7/50V
C21
4U7/50V
R37
*150 2W
C27
C28
L01
SHORT
C33
OPEN
C35
OPEN
C36
OPEN
C37
OPEN
G
2
JUMPER
IC02
OPEN
1
I
G
Z1
1N4744
2
1
Z2
1N4744
G
2
I
IC03
OPEN
JUMPER
C29
3300U/50V
C31
104(C)
C32
104(C)
C30
3300U/50V
S
3
T17
OPEN
D
1
C34
OPEN
L02
CL-310 8T 1.8uH
R20
10K
C14
104(C)
D02
1N4148
T09
9015C
R26
220
R27
220
D03
1N4148
PROTECTION
9015C
D04
1N4004
T06
9014C
T15
OPEN
R45
OPEN
T13
T14
FQP50N06
C15
2200U/25V"RX"
C16
2200U/25V"RX"
C17
104(C)
FQP50N06
T16
FQP50N06
C18
OPEN
R30
47
R31
47
T11
R28
FQP50N06
1K
R29
1K
R32
OPEN
T10
T12
OPEN
R33
47
R46
47
C19
OPEN
R34
OPEN
TR01
362315-40554
R35
OPEN
D15
OPEN
D16
OPEN
O
O
JSZ3-06C
+12V
REM
GND
3
3
R39
10K/0.5W
R40
10K/0.5W
MUTE
P01
C22
220U/25V
C23
220U/25V
C24
104(C)
C25
104(C)
+15V
-15V
VCC
VEE
D
C
B
A
A
ACA-2624-POWER-P A 4-4.SC H
1 2 3 4 5 6 78
Page 5
PA4-4.PCB X060210
Page 6
Page 7
Page 8
Page 9
ACA-2624
Electrical parts list（MAIN PCB）
! Item
C01 ELE 100U/16V CAPACITOR C249 CER 0.1U/50V CAPACITOR
C02 ELE 47U/16V CAPACITOR C25 CER 0.1U/50V CAPACITOR
C03 ELE 100U/16V CAPACITOR C250 ELE 4.7U/50V CAPACITOR
C04 ELE 100U/16V CAPACITOR C251 ELE 4.7U/50V CAPACITOR
C05 MAL 0.001U/100V CAPACITOR C252 CER 1000P/100V CAPACITOR
C06 ELE 100U/16V CAPACITOR C253 ELE 10U/25V CAPACITOR
C07 ELE 100U/25V CAPACITOR C254 ELE 10U/25V CAPACITOR
C08 CER 0.1U/50V CAPACITOR C255 CER 15P/500V CAPACITOR
C09 ELE 10U/25V CAPACITOR C256 ELE 100U/25V CAPACITOR
C10 ELE 47U/50V CAPACITOR C257 CER 47P/500V CAPACITOR
C101 ELE 4.7U/50V CAPACITOR C258 CER 47P/500V CAPACITOR
C102 CER 1000P/100V CAPACITOR C259 CER 47P/500V CAPACITOR
C103 MAL 0.056U/100V CAPACITOR C260 MAL 0.047U/100V CAPACITOR
C104 MAL 0.056U/100V CAPACITOR C261 CER 47P/500V CAPACITOR
C105 MAL 0.056U/100V CAPACITOR C262 CER 150P/100V CAPACITOR
C106 MAL 0.1U/100V CAPACITOR C263 MAL 0.1U/100V CAPACITOR
C107 MAL 0.056U/100V CAPACITOR C29 ELE 3300U/50V CAPACITOR
C108 MAL 0.056U/100V CAPACITOR C30 ELE 3300U/50V CAPACITOR
C109 MAL 0.1U/100V CAPACITOR C301 ELE 4.7U/50V CAPACITOR
C11 CER 0.1U/50V CAPACITOR C302 CER 1000P/100V CAPACITOR
C12 ELE 10U/25V CAPACITOR C303 MAL 0.056U/100V CAPACITOR
C13 CER 0.047U/50V CAPACITOR C304 MAL 0.056U/100V CAPACITOR
C14 CER 0.1U/50V CAPACITOR C305 MAL 0.056U/100V CAPACITOR
C149 CER 0.1U/50V CAPACITOR C306 MAL 0.1U/100V CAPACITOR
C15 ELE 2200U/25V "RX" CAPACITOR
C150 ELE 4.7U/50V CAPACITOR C308 MAL 0.056U/100V CAPACITOR
C151 ELE 4.7U/50V CAPACITOR C309 MAL 0.1U/100V CAPACITOR
C152 CER 1000P/100V CAPACITOR C31 CER 0.1U/50V CAPACITOR
C153 ELE 10U/25V CAPACITOR C32 CER 0.1U/50V CAPACITOR
C154 ELE 10U/25V CAPACITOR C350 ELE 4.7U/50V CAPACITOR
C155 CER 15P/500V CAPACITOR C351 ELE 4.7U/50V CAPACITOR
C156 ELE 100U/25V CAPACITOR C352 CER 1000P/100V CAPACITOR
C157 CER 47P/500V CAPACITOR C353 ELE 10U/25V CAPACITOR
C158 CER 47P/500V CAPACITOR C354 ELE 10U/25V CAPACITOR
C159 CER 47P/500V CAPACITOR C355 CER 15P/500V CAPACITOR
C16 ELE 2200U/25V "RX" CAPACITOR
C160 MAL 0.047U/100V CAPACITOR C357 CER 47P/500V CAPACITOR
C161 CER 47P/500V CAPACITOR C358 CER 47P/500V CAPACITOR
C162 CER 150P/100V CAPACITOR C359 CER 47P/500V CAPACITOR
C163 MAL 0.1U/100V CAPACITOR C360 MAL 0.047U/100V CAPACITOR
C164 ELE 100U/16V CAPACITOR C361 CER 47P/500V CAPACITOR
C17 CER 0.1U/50V CAPACITOR C362 CER 150P/100V CAPACITOR
C20 ELE 4.7U/50V CAPACITOR C363 MAL 0.1U/100V CAPACITOR
C201 ELE 4.7U/50V CAPACITOR C364 ELE 100U/16V CAPACITOR
C202 CER 1000P/100V CAPACITOR C401 ELE 4.7U/50V CAPACITOR
C203 MAL 0.056U/100V CAPACITOR C402 CER 1000P/100V CAPACITOR
C204 MAL 0.056U/100V CAPACITOR C403 MAL 0.056U/100V CAPACITOR
C205 MAL 0.056U/100V CAPACITOR C404 MAL 0.056U/100V CAPACITOR
C206 MAL 0.1U/100V CAPACITOR C405 MAL 0.056U/100V CAPACITOR
C207 MAL 0.056U/100V CAPACITOR C406 MAL 0.1U/100V CAPACITOR
C208 MAL 0.056U/100V CAPACITOR C407 MAL 0.056U/100V CAPACITOR
C209 MAL 0.1U/100V CAPACITOR C408 MAL 0.056U/100V CAPACITOR
C21 ELE 4.7U/50V CAPACITOR C409 MAL 0.1U/100V CAPACITOR
C22 ELE 220U/25V CAPACITOR C450 ELE 4.7U/50V CAPACITOR
C23 ELE 220U/25V CAPACITOR C451 ELE 4.7U/50V CAPACITOR
C24 CER 0.1U/50V CAPACITOR C452 CER 1000P/100V CAPACITOR
Parts number
Parts name
Remarks
h<26mm
h<26mm
! Item
C307 MAL 0.056U/100V CAPACITOR
C356 ELE 100U/25V CAPACITOR
Parts number
Parts name
Block No. 01
Remarks
h<26mm
h<26mm
Electrical parts list / ACA-2624
Page 10
ACA-2624
Electrical parts list（MAIN PCB）
! Item
C453 ELE 10U/25V CAPACITOR R105 CAR 56KΩ1/4W RESISTOR
C454 ELE 10U/25V CAPACITOR R106 CAR 10KΩ1/4W RESISTOR
C455 CER 15P/500V CAPACITOR R107 CAR 1KΩ1/4W RESISTOR
C456 ELE 100U/25V CAPACITOR R108 CAR 56KΩ1/4W RESISTOR
C457 CER 47P/500V CAPACITOR R109 CAR 68KΩ1/4W RESISTOR
C458 CER 47P/500V CAPACITOR R11 CAR 15KΩ1/4W RESISTOR
C459 CER 47P/500V CAPACITOR R110 CAR 56KΩ1/4W RESISTOR
C460 MAL 0.047U/100V CAPACITOR R111 CAR 1KΩ1/4W RESISTOR
C461 CER 47P/500V CAPACITOR R112 CAR 10KΩ1/4W RESISTOR
C462 CER 150P/100V CAPACITOR R113 CAR 10KΩ1/4W RESISTOR
C463 MAL 0.1U/100V CAPACITOR R114 CAR 22KΩ1/4W RESISTOR
C50 CER 0.1U/50V CAPACITOR R115 CAR 1KΩ1/4W RESISTOR
C51 CER 0.1U/50V CAPACITOR R12 CAR 1KΩ1/4W RESISTOR
C52 CER 0.1U/50V CAPACITOR R13 CAR 27KΩ1/4W RESISTOR
D01 1N4148 GE DIODE R14 CAR 15KΩ1/4W RESISTOR
D02 1N4148 GE DIODE R15 CAR 130KF1/4W±1% RESISTOR
D03 1N4148 GE DIODE R150 CAR 5.6KΩ1/4W RESISTOR
D04 1N4004 DIODE R151 CAR 22KΩ1/4W RESISTOR
D05 FR154 DIODE R152 CAR 1KΩ1/4W RESISTOR
D06 FR154 DIODE R153 CAR 7.5KΩ1/4W RESISTOR
D07 FR154 DIODE R154 CAR 7.5KΩ1/4W RESISTOR
D08 FR154 DIODE R155 CAR 1KΩ1/4W RESISTOR
D12 02N DIODE
D13 02C DIODE
D151 1N4148 GE DIODE R158 CAR 100Ω1/4W RESISTOR
D17 1N5404 DIODE 400V/3A R159 CAR 100Ω1/4W RESISTOR
D251 1N4148 GE DIODE R16 CAR 51KΩ1/4W±1% RESISTOR
D351 1N4148 GE DIODE R160 CAR 100Ω1/4W RESISTOR
D451 1N4148 GE DIODE R161 CAR 1KΩ1/4W RESISTOR
F01 BXS-03A FUSE HOLDER
FUSE01 ZH270-15A AUTO FUSE R163 CAR 560Ω1/4W RESISTOR
IC01 KIA494AP I.C R164 CAR 100Ω1/4W RESISTOR
IC101 JRC4558 I.C R165 CAR 4.7KΩ1/4W RESISTOR
IC102 JRC4558 I.C R166 CAR 1.8KΩ1/4W RESISTOR
IC103 JRC4558 I.C R167 CAR 100Ω1/4W RESISTOR
IC203 JRC4558 I.C R168 CAR 220Ω1/4W RESISTOR
IC301 JRC4558 I.C R17 CAR 10Ω1/2W RESISTOR
IC302 JRC4558 I.C R170 CAR 0.12Ω3W RESISTOR
IC303 JRC4558 I.C R171 CAR 0.12Ω3W RESISTOR
IC403 JRC4558 I.C R174 CAR 1.5KΩ1/4W RESISTOR
L02 CL-310,1.8uH INDUCTOR
LED01
P01 JSZ3-06C
R01 CAR 4.7KΩ1/4W RESISTOR R178 CAR 4.7Ω1/2W RESISTOR
R02 CAR 4.7KΩ1/4W RESISTOR R18 CAR 4.7KΩ1/4W RESISTOR
R03 CAR 10KΩ1/4W RESISTOR R19 CAR 4.7KΩ1/4W RESISTOR
R04 CAR 68KΩ1/4W RESISTOR R20 CAR 10KΩ1/4W RESISTOR
R05 CAR 10Ω1/4W RESISTOR R201 CAR 1KΩ1/4W RESISTOR
R06 CAR 10KΩ1/4W RESISTOR R203 CAR 1KΩ1/4W RESISTOR
R07 CAR 1KΩ1/4W RESISTOR R204 CAR 10KΩ1/4W RESISTOR
R08 CAR 22KΩ1/4W RESISTOR R205 CAR 47KΩ1/4W RESISTOR
R09 CAR 33KΩ1/4W RESISTOR R206 CAR 10.2KΩ1/4W±1% RESISTOR
R10 CAR 15KΩ1/4W RESISTOR R207 CAR 1KΩ1/4W RESISTOR
R101 CAR 1KΩ1/4W RESISTOR R208 CAR 56KΩ1/4W RESISTOR
R103 CAR 1KΩ1/4W RESISTOR R209 CAR 68KΩ1/4W RESISTOR
R104 CAR 10KΩ1/4W RESISTOR R21 CAR 4.7KΩ1/4W RESISTOR
Parts number
SAM3270∮3
Parts name
LED R176 CAR 56KΩ1/4W RESISTOR
POWER INPUT JACK
Remarks
FAST RECOVERY
FAST RECOVERY
GOLD PLATED
8T
GOLD PLATED
! Item
R156 CAR 1KΩ1/4W RESISTOR
R157 CAR 100Ω1/4W RESISTOR
R162 CAR 15KΩ1/4W RESISTOR
R175 CAR 30KΩ1/4W RESISTOR
R177 CAR 680Ω2W RESISTOR
Parts number
Parts name
Block No. 02
Remarks
Electrical parts list / ACA-2624
Page 11
ACA-2624
Electrical parts list（MAIN PCB）
! Item
R210 CAR 56KΩ1/4W RESISTOR R33 CAR 47Ω1/4W RESISTOR
R211 CAR 1KΩ1/4W RESISTOR R350 CAR 5.6KΩ1/4W RESISTOR
R212 CAR 10KΩ1/4W RESISTOR R351 CAR 22KΩ1/4W RESISTOR
R213 CAR 10KΩ1/4W RESISTOR R352 CAR 1KΩ1/4W RESISTOR
R214 CAR 22KΩ1/4W RESISTOR R353 CAR 7.5KΩ1/4W RESISTOR
R215 CAR 1KΩ1/4W RESISTOR R354 CAR 7.5KΩ1/4W RESISTOR
R22 CAR 1.2KΩ1/4W RESISTOR R355 CAR 1KΩ1/4W RESISTOR
R23 CAR 51KΩ1/4W RESISTOR R356 CAR 1KΩ1/4W RESISTOR
R24 CAR 1.2KΩ1/4W RESISTOR R357 CAR 100Ω1/4W RESISTOR
R25 CAR 10KΩ1/4W RESISTOR R358 CAR 100Ω1/4W RESISTOR
R250 CAR 5.6KΩ1/4W RESISTOR R359 CAR 100Ω1/4W RESISTOR
R251 CAR 22KΩ1/4W RESISTOR R36 CAR 150Ω2W RESISTOR
R252 CAR 1KΩ1/4W RESISTOR R360 CAR 100Ω1/4W RESISTOR
R253 CAR 7.5KΩ1/4W RESISTOR R361 CAR 1KΩ1/4W RESISTOR
R254 CAR 7.5KΩ1/4W RESISTOR R362. CAR 15KΩ1/4W RESISTOR
R255 CAR 1KΩ1/4W RESISTOR R363 CAR 560Ω1/4W RESISTOR
R256 CAR 1KΩ1/4W RESISTOR R364 CAR 100Ω1/4W RESISTOR
R257 CAR 100Ω1/4W RESISTOR R365 CAR 4.7KΩ1/4W RESISTOR
R258 CAR 100Ω1/4W RESISTOR R366 CAR 1.8K
R259 CAR 100Ω1/4W RESISTOR R367 CAR 100Ω1/4W RESISTOR
R26 CAR 220Ω1/4W RESISTOR R368 CAR 220Ω1/4W RESISTOR
R260 CAR 100Ω1/4W RESISTOR R37 CAR 150Ω2W RESISTOR
R261 CAR 1KΩ1/4W RESISTOR R370 CAR 0.12Ω3W RESISTOR
R262 CAR 15KΩ1/4W RESISTOR R371 CAR 0.12Ω3W RESISTOR
R263 CAR 560Ω1/4W RESISTOR R374 CAR 1.5KΩ1/4W RESISTOR
R264 CAR 100Ω1/4W RESISTOR R375 CAR 30KΩ1/4W RESISTOR
R265 CAR 4.7KΩ1/4W RESISTOR R376 CAR 56KΩ1/4W RESISTOR
R266 CAR 1.8KΩ1/4W RESISTOR R377 CAR 680Ω2W RESISTOR
R267 CAR 100Ω1/4W RESISTOR R378 CAR 4.7Ω1/2W RESISTOR
R268 CAR 220Ω1/4W RESISTOR R39 CAR 10KΩ1/2W RESISTOR
R27 CAR 220Ω1/4W RESISTOR R40 CAR 10KΩ1/2W RESISTOR
R270 CAR 0.12Ω3W RESISTOR R401 CAR 1KΩ1/4W RESISTOR
R271 CAR 0.12Ω3W RESISTOR R403 CAR 1KΩ1/4W RESISTOR
R274 CAR 1.5KΩ1/4W RESISTOR R404 CAR 10KΩ1/4W RESISTOR
R275 CAR 30KΩ1/4W RESISTOR R405 CAR 47KΩ1/4W RESISTOR
R276 CAR 56KΩ1/4W RESISTOR R406 CAR 10.2KΩ1/4W±1% RESISTOR
R277 CAR 680Ω2W RESISTOR R407 CAR 1KΩ1/4W RESISTOR
R278 CAR 4.7Ω1/2W RESISTOR R408 CAR 56KΩ1/4W RESISTOR
R28 CAR 1KΩ1/4W RESISTOR R409 CAR 68KΩ
R29 CAR 1KΩ1/4W RESISTOR R410 CAR 56KΩ1/4W RESISTOR
R30 CAR 47Ω1/4W RESISTOR R411 CAR 1KΩ1/4W RESISTOR
R301 CAR 1KΩ1/4W RESISTOR R412 CAR 10KΩ1/4W RESISTOR
R303 CAR 1KΩ1/4W RESISTOR R413 CAR 10KΩ1/4W RESISTOR
R304 CAR 10KΩ1/4W RESISTOR R414 CAR 22KΩ1/4W RESISTOR
R305 CAR 56KΩ1/4W RESISTOR R415 CAR 1KΩ1/4W RESISTOR
R306 CAR 10KΩ1/4W RESISTOR R44 CAR 10KΩ1/4W RESISTOR
R307 CAR 1KΩ1/4W RESISTOR R450 CAR 5.6KΩ1/4W RESISTOR
R308 CAR 56KΩ1/4W RESISTOR R451 CAR 22KΩ1/4W RESISTOR
R309 CAR 68KΩ1/4W RESISTOR R452 CAR 1KΩ1/4W RESISTOR
R31 CAR 47Ω1/4W RESISTOR R453 CAR 7.5KΩ1/4W RESISTOR
R310 CAR 56KΩ1/4W RESISTOR R454 CAR 7.5KΩ1/4W RESISTOR
R311 CAR 1KΩ1/4W RESISTOR R455 CAR 1KΩ1/4W RESISTOR
R312 CAR 10KΩ1/4W RESISTOR R456 CAR 1KΩ1/4W RESISTOR
R313 CAR 10KΩ1/4W RESISTOR R457 CAR 100Ω1/4W RESISTOR
R314 CAR 22KΩ1/4W RESISTOR R458 CAR 100Ω1/4W RESISTOR
R315 CAR 1KΩ1/4W RESISTOR R459 CAR 100Ω1/4W RESISTOR
Parts number
Parts name
Remarks
! Item
Parts number
Ω1/4W RESISTOR
1/4W RESISTOR
Parts name
Block No. 03
Remarks
Electrical parts list / ACA-2624
Page 12
ACA-2624
Electrical parts list（MAIN PCB）
! Item
R46 CAR 47Ω1/4W RESISTOR T255 2N5401 TRANSISTOR
R460 CAR 100Ω1/4W RESISTOR T256 2N5551 TRANSISTOR
R461 CAR 1KΩ1/4W RESISTOR T257 2N5551 TRANSISTOR
R462 CAR 15KΩ1/4W RESISTOR T258 2SC2383 TRANSISTOR
R463 CAR 560Ω1/4W RESISTOR T259 2SA1013 TRANSISTOR
R464 CAR 100Ω1/4W RESISTOR T262 KTD718 TRANSISTOR
R465 CAR 4.7KΩ1/4W RESISTOR T263 KTB688 TRANSISTOR
R466 CAR 1.8KΩ1/4W RESISTOR T266 2N5551 TRANSISTOR
R467 CAR 100Ω1/4W RESISTOR T267 9014C TRANSISTOR
R468 CAR 220Ω1/4W RESISTOR T351 2N5551 TRANSISTOR
R470 CAR 0.12Ω3W RESISTOR T352 2N5551 TRANSISTOR
R471 CAR 0.12Ω3W RESISTOR T353 2N5401 TRANSISTOR
R474 CAR 1.5KΩ1/4W RESISTOR T354 2N5401 TRANSISTOR
R475 CAR 30KΩ1/4W RESISTOR T355 2N5401 TRANSISTOR
R476 CAR 56KΩ1/4W RESISTOR T356 2N5551 TRANSISTOR
R477 CAR 680Ω2W RESISTOR T357 2N5551 TRANSISTOR
R478 CAR 4.7Ω1/2W RESISTOR T358 2SC2383 TRANSISTOR
R48 CAR 56KΩ1/4W RESISTOR T359 2SA1013 TRANSISTOR
RCA AV4-8.4-13 RCA JACK
SPK01 JSZ4-02
SPK02 JSZ4-02
SW101 KD2304-02G9
SW301 KD2304-02G9
T01 9015C TRANSISTOR
T02 9015C TRANSISTOR
T03 9014C TRANSISTOR
T04 2N5401 TRANSISTOR
T05 9014C TRANSISTOR
T06 9014C TRANSISTOR
T07 2SA1013 TRANSISTOR
T08 9014C TRANSISTOR
T09 9015C TRANSISTOR
T10 9015C TRANSISTOR
T11 FQP50N06 MOSFET
T13 FQP50N06 MOSFET
T14 FQP50N06 MOSFET
T151 2N5551 TRANSISTOR
T152 2N5551 TRANSISTOR
T153 2N5401 TRANSISTOR
T154 2N5401 TRANSISTOR
T155 2N5401 TRANSISTOR
T156 2N5551 TRANSISTOR
T157 2N5551 TRANSISTOR
T158 2SC2383 TRANSISTOR
T159 2SA1013 TRANSISTOR
T16 FQP50N06 MOSFET
T162 KTD718 TRANSISTOR
T163 KTB688 TRANSISTOR
T166 2N5551 TRANSISTOR
T167 9014C TRANSISTOR
T22 9015C TRANSISTOR
T23 9014C TRANSISTOR
T251 2N5551 TRANSISTOR
T252 2N5551 TRANSISTOR
T253 2N5401 TRANSISTOR
T254 2N5401 TRANSISTOR
Parts number
Parts name
SPEAKER OUT JACK
SPEAKER OUT JACK
CROSSOVER SWITCH
CROSSOVER SWITCH
Remarks
GOLD PLATED
GOLD PLATED
GOLD PLATED
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92L(E.C.B)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-220
TO-220
TO-220
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92L(E.C.B)
TO-92L(E.C.B)
TO-220
TO-3P(B.C.E)
TO-3P(B.C.E)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
! Item
T362 KTD718 TRANSISTOR
T363 KTB688 TRANSISTOR
T366 2N5551 TRANSISTOR
T367 9014C TRANSISTOR
T451 2N5551 TRANSISTOR
T452 2N5551 TRANSISTOR
T453 2N5401 TRANSISTOR
T454 2N5401 TRANSISTOR
T455 2N5401 TRANSISTOR
T456 2N5551 TRANSISTOR
T457 2N5551 TRANSISTOR
T458 2SC2383 TRANSISTOR
T459 2SA1013 TRANSISTOR
T462 KTD718 TRANSISTOR
T463 KTB688 TRANSISTOR
T466 2N5551 TRANSISTOR
T467 9014C TRANSISTOR
TH01 50KTH NTC RESISTOR
TR01 37PHI TRANSFORMER
VR101
VR102
VR103
VR301
VR302
VR303
Z1 1N4744 DIODE 15V/1W
Z2 1N4744 DIODE 15V/1W
Parts number
F-16KG B20K L10REA(M)
F-16KG B500K L10REA(M)
F-16KJ3 C100K L10REA(M)
F-16KG B20K L10REA(M)
F-16KG B500K L10REA(M)
F-16KJ3 C100K L10REA(M)
Parts name
RHEOSTAT
RHEOSTAT
RHEOSTAT
RHEOSTAT
RHEOSTAT
RHEOSTAT
Block No. 04
Remarks
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92L(E.C.B)
TO-92L(E.C.B)
TO-3P(B.C.E)
TO-3P(B.C.E)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92L(E.C.B)
TO-92L(E.C.B)
TO-3P(B.C.E)
TO-3P(B.C.E)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92(E.B.C)
TO-92L(E.C.B)
TO-92L(E.C.B)
TO-3P(B.C.E)
TO-3P(B.C.E)
TO-92(E.B.C)
TO-92(E.B.C)
362315-40554
90°
90°
90°
90°
90°
90°
Electrical parts list / ACA-2624
Page 13
Page 14
Car audio amplifier capability request
t
pen)
Client Name: AKAI Serial Number :
Model Name: ACA-2624 Accomplished Q'ty:
PO. Number:
NO
Item Unit
Condition Capability request
Accomplished Date:
Sample1：
Gain-frequency
1
2
3
response
Total harmonic
distortion and noise
Normal Output
power(4Ω)
Normal Output
power(2Ω)
Work normally
Work normally
10W,4Ω
Rated
Distortion: 0.7%
Rated
Distortion:10%
Max. output power
Rated
Distortion: 0.7%
Rated
Distortion: 10%
Front L/R CH2: +1/-3
dB
Rear L/R +1/- 3 (10Hz~20kHz) CH3: +1/-3 CH4: +1/-3
Front L/R
%
Rear L/R
Front L/R
Rear L/R
Front L/R
W Product specification
Rear L/R
Front L/R
Rear L/R
Front L/R
Rear L/R
Front L/R
W
Rear L/R
+1/- 3 (10Hz~20kHz) CH1: +1/-3
CH1: ＜ 0.07 CH2: ＜ 0.04
≤0.7%
CH3: ＜ 0.04 CH4: ＜ 0.05
CH1: ≥ 47.38 CH2: ≥ 47.71
CH3: ≥ 44.52
CH1: ≥ 66.80 CH2: ≥ 65.47
CH3: ≥ 65.52 CH4: ≥ 65.46
CH1: ≥ 89.45 CH2: ≥ 88.03
CH3: ≥ 89.00 CH4: ≥ 89.54
CH1: ≥ 31.20
CH3: ≥ 34.98 CH4: ≥ 35.78
CH1: ≥ 69.84 CH2: ≥ 65.87
Product specification
CH3: ≥ 66.01 CH4: ≥ 68.47
CH4: ≥ 44.26
CH2: ≥ 32.98
4 BTL Output power
Signal noise ratio
(Input Terminal
Short)
Signal noise ratio
5
(Input Terminal
Open)
output noise
6 Separation
Max. output power
Rated
Distortion: 0.7%
Rated
Distortion: 10%
Max. output power
Rated
1kHz
Distortion: 10%
Rated
1kHz
Distortion: 10%
No signal inpu
(Input Terminal
O
Work normally
Distortion:0.7%
Front L/R
Rear L/R
Front
Rear
Front
Rear
Front
Rear
Front L/R
Rear L/R
Front L/R
Rear L/R
Front L/R
Rear L/R
1 kHz
10 kHz
W
dB
dB
mV
dB
Product specification
≥71
Full range
≥71
Full range
A-Weighting
A-Weighting
≤3
≥ 40 CH1 & CH2:≥
≥ 30 CH1 & CH2:≥ 39/41 CH3 & CH4:≥ 44/42
≥76
≥76
CH1: ≥ 106.95 CH2: ≥ 95.48
CH3: ≥ 97.72 CH4: ≥ 101.65
CH1&CH2: ≥ 65.73 W/4Ω; W/2Ω
CH3&CH4: ≥ 70.50 W/4Ω; W/2Ω
CH1&CH2: ≥ 140.63 W/4Ω; W/2Ω
CH3&CH4: ≥ 137.15 W/4Ω; W/2Ω
CH1&CH2: ≥ 203.45 W/4Ω; W/2Ω
CH3&CH4: ≥ 196.28 W/4Ω; W/2Ω
CH1: ≥ 92.2/95.3
CH3: ≥ 92.1/94.4 CH4: ≥ 94.9/96.8
CH1: ≥ 94.3/98.6
CH3: ≥ 95.0/98.1 CH4: ≥ 94.1/96.3
46/46 CH3 & CH4:≥ 46/48
CH2: ≥ 95.0/97.4
CH2: ≥ 93.4/96.9
2.0/2.0
2.0/2.0
7 Be sensitive to input
Volume max
Distortion:10%
Capability Request / ACA-2624 1/2
High input
mV Product specification
Low input 170
---
Page 15
Car audio amplifier capability request
h
Client Name: AKAI Serial Number :
Model Name: ACA-2624 Accomplished Q'ty:
PO. Number:
NO
On-off power part
8
9
testing
Phase between channels
Item Unit
Work normally Frequency kHz
No signal input Amplifier: ±25.95 Preamp: +/- 16
Condition Capability request
Power
THD10% 2Ω Amplifier: ±23.12 Preamp: +/- 15
THD10% 4Ω Amplifier: ±23.75 Preamp: +/- 16
supply
voltage
V
Product specification
In-phaseWork normally ---
Accomplished Date:
Sample1：
37.02
Output in-phase
CH1&CH2 contra-phase / CH3&CH4 contra-phase
Gain difference
10
between channels
11 Stability Rated ---
12 Bass boost range dB Product specification
Low-Pass crossover
（Min.）
13
Low-Pass crossover
（Max.）
High-Pass crossover
（Min.）
14
High-Pass crossover
（Max.）
15 Power supply
16 Function testing
terminal short-circuit
17
Note:
Power supply voltage: 14.0V
testing
Volume output ( max~max
decrese 46dB )
1/2f 23 Hz
f 45 Hz
2f 90 Hz
1/2f
f
2f
1/2f
f
2f
1/2f
f
2f
1/2f
f
2f
(Rated)
Distortion:10%
Static /
Power on delay
Remote Switch OK
Short circuit Protection OK
no sound on/off OK
caraudio on/off OK
Amplifier on/off
Temperature testing 1/3 Max. Power 4hours testing OK
[Heat sink] with [power supply (+/-)
terminal]、[speaker (+/-) terminal]、
[VR crust] 、[RCA terminal]
[power supply (+) terminal] with
[speaker (+/-) terminal]、[VR crust]
、[RCA terminal]
[power supply (-) terminal] wit
[speaker (+/-) terminal]、[VR crust]
、[RCA terminal]
15 Hz
30 Hz
60 Hz
100 Hz
200 Hz
400 Hz
17 Hz
35 Hz
70 Hz
2.25 KHz
4.5 KHz
9 KHz
dB
Not self-excitation and
dB Product specification
dB Product specification
dB Product specification
dB Product specification
W Product specification
≤ 3 ≤1.5
parasitism
Product specificationDC offset Protection
No noise or spark
OK
CH1 & CH2: ≥ + 8 CH3 & CH4: ≥ +8
CH1 & CH2: ≥ + 12
CH1 & CH2: ≥ + 8 CH3 & CH4: ≥ +8
CH1 & CH2: - 0.5 CH3 & CH4: -0.5
CH1 & CH2: - 3
CH1 & CH2: - 8 CH3 & CH4: -8
CH1 & CH2: - 0.5 CH3 & CH4: -0.5
CH1 & CH2: - 3
CH1 & CH2: - 12 CH3 & CH4: -12
CH1 & CH2: - 16
CH1 & CH2: - 3 CH3 & CH4: -3
CH1 & CH2: + 1 CH3 & CH4: +1
CH1 & CH2: - 7
CH1 & CH2: - 3 CH3 & CH4: -3
CH1 & CH2: - 1 CH3 & CH4: -1
CH3 & CH4:≥+12
CH3 & CH4: -3
CH3 & CH4: -3
CH3 & CH4: -16
CH3 & CH4: -7
/
3s
OK
OK
OK
OK
OK
Operated by: Xiaoyulin Approved by: Zhaozhigang
Capability Request / ACA-2624 2/2
Date: 2006/03/01
Page 16
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