Akai ACA-2664 User manual

SERVICE MANUAL
ACA-2664
POWER AMPLIFIER

Circuitry Frame ACA-2664
ACA-2624
IC302B IC303B IC303A POWER
AMP
SW301B
RL-OUT RR-OUT
57
LPF
HPF
OFF
31
75
VR302A VR303D VR303C
IC302A IC403B IC403A SW301A
5731
LPF
HPF
OFF
31
75
VR302B VR303B VR303A
+12V
D.C.
REM
F01
T07
T08
T01-04
T09,T10
T11-T16
T100,T200
T300,T400
T01
IC02
IC03
VEE
VCC
+/-15
T17 T166,T167
T266,T267
T366,T367
T466,T467
PTOTECT
MUTE
CONTROL
TRANS & REGULATOR
POWER
REGULATOR
IC01
POWER
CONTROL
RL-IN
RR-IN VR301B
VR301A IC301A
IC301B
21
POWER
AMP
T451-T457
T458-T461
T462-T465
IC102A IC103A IC103B POWER
AMP
SW101B
FL-OUT FR-OUT
31
LPF
HPF
OFF
57
13
VR102B VR103D VR103C
IC102B IC203A IC203B SW101A
5757
LPF
HPF
OFF
57
13
VR102A VR103A VR103B
CROSSOVER
@ 50Hz
L-IN
R-IN VR101B
VR101A IC101A
INPUT
AMP
IC101B
21
BOOST0-12dB
30Hz-5KHz 12dB/OCT VARIABLE
T151-T157
T158-T161
T162-T165
POWER
AMP
T351-T357
T358-T361
T362-T365
T251-T257
T258-T261
T262-T265
T22,T23

12345678
A
B
C
D
8
7654321
D
C
B
A
FL-AMP
D151
1N4148
R174
1K5
R160
100
R159
100
R158
100
R157
100
R151
22K
C155
15(C)
C156
100uF/25V
R163
560
C158
47(C)
C157
47(C)
R150
5.6K
C152
102(C)
R161
1K
R156
1K
R167
100
R164
100
T154
5401
T153
5401
T151
5551 T152
5551
T156
5551
T155
5401
C161
47(C)
C159
47(C)
R166
1K8
R165
4K7
T157
2N5551
T159
2SA1013
T158
2SC2383
R168
220
R170
0.12/3W
T161
2SA1013
T162
KTD718
R171
0.12/3W
R169
220
T166
2N5551
R152
1K
R155
1K
C162
151(C)
C151
4.7uF/50V
R172
0.12/3W
R162
15K
I/P
*
POWER-AMP[FL]
O/P
T100
OPEN
T200
OPEN
R100
OPEN
R200
OPEN
MUTE
T163
TKB688
T165
TKB688
R173
0.12/3W
R175
30K
T160
2SC2383 T164
KTD718
C150
4.7uF/50V
R153
9K1
R154
9K1
C154
10uF/25V
C153
10uF/25V
-15V
+15V
T167
9014 T267 9014
R178
4.7/0.5W
R176
56K
R177
680/2W
C163
104(M)
D251
1N4148
R274
1K5
R260
100
R259
100
R258
100
R257
100
R251
22K
C255
15(C)
C256
100uF/25V
R263
560
C258
47(C)
C257
47(C)
R250
5.6K
C252
102(C)
R261
1K
R256
1K
R267
100
R264
100
T254
5401
T253
5401
T251
5551 T252
5551
T256
5551
T255
5401
C261
47(C)
C259
47(C)
R266
1K8
R265
4K7
T257
2N5551
T259
2SA1013
T258
2SC2383
R268
220 R270 0.12/3W
T261
2SA1013
T262
KTD718
R271
0.12/3W
R269
220
T266
2N5551
R252
1K
R255
1K
C262
151(C)
C250
4.7uF/50V
R272
0.12/3W
R262
15K
*
POWER-AMP[FR]
O/P
T263
TKB688
T265
TKB688
R273
0.1/3W
R275
30K
T260
2SC2383 T264
KTD718
R253
9K1
R254
9K1
C254
10uF/25V
C253
10uF/25V
-15V
+15V
R278
4.7/0.5W
R277
680/2W
C263
104(M)
PROTECTION
C251
4.7uF/50V
POWER-AMP(RL]
POWER-AMP(RR]
[SAME AS FL-CH]
[SAME AS FR-CH]
O/P
O/P
PROTECTION
PROTECTION
R276
56K
C160
473(M)
C260 473(M)
C164
100uF/16V
SW101B
PROTECTION
SPK01
FRONT OUT
SPK02
REAR OUT
FL-
FL+
FR-
FL+
RL-
RL+
RR-
RR+
C97
OPEN
C99
OPEN
GND
GND
2(G) 3 (S)
1(D)
2(G) 3(S)
1(D)
*
*
*
*
VCC
VCC
VEE
VEE
ACA-2664-AMP-PA4-4.SCH
R108
56K
R105
56K
IC101A
1/2 4558
IC102A
1/2 4558
R101
1K
R103
1K
R106
10K
C102
102(C)
C103
563(M)
R104
10K
R110
56K
C106
104(M)
C107
563(M)
VR103B
C100K
VR101B
B20K
R107
1K
C105
563(M)
C101
4.7uF/50V
R112
10K
R113
10K
R111
1K
R109
68K
R115 1K
R11422K
C109
104(M)
C108 563(M)
C104
563(M)
VR102B
500KB
VR103D
C100K
HI
OFF
LO
FL
AV4-8.4-13
R208
56K
R205
47K IC203A
1/2 4558
IC101B
1/2 4558
IC102B
1/2 4558
R201
1K
R203
1K
R206
10K2
C202
102(C)
C203
563(M)
R204
10K R210
56K
C206
104(M)
C207
563(M)
VR103A
C100K
VR101A
B20K
R207
1K
C205
563(M)
C201
4.7uF/50V
R212
10K
R213
10K
R211
1K
R209
68K
R215 1K
R214 22K
C209
104(M)
C208
563(M)
C204
563(M)
VR102A
500KB
VR103C
C100K
IC203B
1/2 4558
HI
OFF
LO
FR
AV4-8.4-13
R308
56K
R305
56K
IC303B
1/2 4558
IC301B
1/2 4558
IC302B
1/2 4558
R301
1K
R303
1K
R306
10K
C302
102(C)
C303 563(M)
R304
10K
R310
56K
C306
104(M)
C307
563(M)
VR303B
C100K
VR301B
B20K
R307
1K
C305
563(M)
C301
4.7uF/50V
R312
10K
R313
10K
R311
1K
R309
68K
R315 1K
R314
22K
C309
104(M)
C308
563(M)
C304
563(M)
VR302A
500KB
VR303C
C100K
IC303A
1/2 4558
HI
OFF
LO
RL
AV4-8.4-13
R408
56K
R405
47K
IC403B
1/2 4558
IC301A
1/2 4558
IC302A
1/2 4558
R401
1K
R403
1K
R406
10K2
C402
102(C)
C403
563(M)
R404
10K
R410
56K
C406
104(M)
C407
563(M)
VR303A
C100K
VR301A
B20K
R407
1K
C405
563(M)
C401
4.7uF/50V
R412
10K
R413
10K
R411
1K
R409
68K
R415 1K
R414
22K
C409
104(M)
C408
563(M)
C404
563(M)
VR302B
500KB
VR303D
C100K
IC403A
1/2 4558
HI
OFF
LO
RR-AMP
RR
AV4-8.4-13
RL-AMP
SW101A
SW301A
SW301B
IC103B
2/24558
-15V
+15V
C149
104(C)
C249
104(C)
IC103A
1/24558
L101
SHORT
R116
SHORT C112 OPEN
A
A
A
A
A
A
A
A
A
A
A A
A
B
B
B
C111
OPEN
Z101
OPEN
Z102
OPEN
Z201
OPEN
Z202
OPEN
Z301
OPEN
Z302
OPEN
Z401
OPEN
Z402
OPEN
2
31
5
67
1
2
3
5
67
5
67
3
21
5
67
1
2
3
5
67
1
2
3
5
67
1
2
3
1
2
3
5
67
1
2
3
5
67
FR-AMP

12345678
A
B
C
D
8
7654321
D
C
B
A
C17
104(C)
C05
102(M)
D01
1N4148
C07
100U/25V
C04
100U/16V
C06
100U/16V T17
OPEN
LED01
SAM3270
T01
9015C T02
9015C
R13
27K
R04
68K
R02
4K7
t
TH01
50KTH
T05
9014C
25A
F01
T11
FQP50N06
T12
FQP50N06
TR01
362315-41004
2IN+ 16
2IN- 15
Ref 14
OUT 13 VCC 12
C2 11 E2 10 E1 9
C1
8
GND
7
RT
6
CT
5
DTC
4
Fback
3
1IN-
2
1IN+
1
IC01
KIA494AP
R12
1K
R14
15K
C02
47U/16V
C01
100U/16V
R06
10K
R01
4K7
T07 2SA1013
T09 9015C
T10
9015C
R05
10
R03
10K
C12
10U/25V
R39
10K/0.5W
C03
100U/16V
R42
OPEN
C33
OPEN
R25
10K
C34
OPEN
R40
10K/0.5W
R26
220 C16
2200U/25V"LE"
R27
220 C26
OPEN
R30
47
C15
2200U/25V"LE"
R33
47
D03
1N4148
D02
1N4148
T14
FQP50N06
T13
FQP50N06
C11
104(C)
R41
OPEN
C30
3300U/50V
R43
OPEN
R28
1K
C29
3300U/50V
R29
1K
R38
OPEN
R32
47
R24
1K2
R31
47
C28
OPEN
C32
104(C)
C27
OPEN
C31
104(C)
C14
104(C)
L01
SHORT
D15
OPEN
D16
OPEN
MUTE
VCC
VEE
D06 FR154
D05 FR154
D07 FR154
D08 FR154
R15
130KF
R17
10 1/2W
R23 51K
R22
1K2
C13
473(C)
T06
9014C
T08
9014C
R21
4K7
R19
4K7
R44
10K R16
51KF
R18
4K7
R20
10K D04
1N4004
L02
CL-310 8T 1.8uH
C35
OPEN
C52
104(C)
C51
104(C)
C50
104(C)
D17
1N5404
+12V
REM
GND
P01
JSZ3-6C
25A
T15
FQP50N06
T16
FQP50N06
R46
47
R45
47
G
S
D
3
1
2
C22
220uF/25V
C23
220uF/25V
C25
104(C)
R36
*270 2W
R37
*270 2W
C24
104(C)
+15V
-15V
C20
4U7/50V
G
2
O3 I
1
IC02
OPEN
G1
O3 I
2
IC03
OPEN
C21
4U7/50V
C36
OPEN
C37
OPEN
R35
OPEN
R34
OPEN
C18
OPEN
C19
OPEN
L03
SHORT
Z1
15V 1W
Z2
15V 1W
JUMPER
JUMPER
ACA-2664-POWER-PA4-4.SCH
D13
C25-02C
D12
C25-02N
C08
104(C)
R07
1K
R11
15K
C09
10U/25V C10
47U/50V
R10
15K
R08
22K T04
5401
PROTECTION
R09
33K
T03
9014C
T22
9015C
T23
9014C
JP3
OPEN
R48
56K

PA4-4.PCB X060210

Block No. 01
! Item Parts number Parts name Remarks ! Item Parts number Parts name Remarks
C01 ELE 100U/16V CAPACITOR C251 ELE 4.7U/50V CAPACITOR
C02 ELE 47U/16V CAPACITOR C252 CAR 1000P/100V CAPACITOR
C03 ELE 100U/16V CAPACITOR C253 ELE 10U/25V CAPACITOR
C04 ELE 100U/16V CAPACITOR C254 ELE 10U/25V CAPACITOR
C05 MAL 0.001U/100V CAPACITOR C255 CAR 15P/500V CAPACITOR
C06 ELE 100U/16V CAPACITOR C256 ELE 100U/25V CAPACITOR
C07 ELE 100U/25V CAPACITOR C257 CAR 47P/500V CAPACITOR
C08 CAR 0.1U/50V CAPACITOR C258 CAR 47P/500V CAPACITOR
C09 ELE 10U/25V CAPACITOR C259 CAR 47P/500V CAPACITOR
C10 ELE 47U/50V CAPACITOR C260 MAL 0.047U/100V CAPACITOR
C101 ELE 4.7U/50V CAPACITOR C261 CAR 47P/500V CAPACITOR
C102 CAR 1000P/100V CAPACITOR C262 CAR 150P/100V CAPACITOR
C103 MAL 0.056U/100V CAPACITOR C263 MAL 0.1U/100V CAPACITOR
C104 MAL 0.056U/100V CAPACITOR C29 ELE 3300U/50V CAPACITOR h<26mm
C105 MAL 0.056U/100V CAPACITOR C30 ELE 3300U/50V CAPACITOR h<26mm
C106 MAL 0.1U/100V CAPACITOR C301 ELE 4.7U/50V CAPACITOR
C107 MAL 0.056U/100V CAPACITOR C302 CAR 1000P/100V CAPACITOR
C108 MAL 0.056U/100V CAPACITOR C303 MAL 0.056U/100V CAPACITOR
C109 MAL 0.1U/100V CAPACITOR C304 MAL 0.056U/100V CAPACITOR
C11 CAR 0.1U/50V CAPACITOR C305 MAL 0.056U/100V CAPACITOR
C12 ELE 10U/25V CAPACITOR C306 MAL 0.1U/100V CAPACITOR
C13 CAR 0.047U/50V CAPACITOR C307 MAL 0.056U/100V CAPACITOR
C14 CAR 0.1U/50V CAPACITOR C308 MAL 0.056U/100V CAPACITOR
C149 CAR 0.1U/50V CAPACITOR C309 MAL 0.1U/100V CAPACITOR
C15 ELE 2200U/25V "RX" CAPACITOR h<26mm C31 CAR 0.1U/50V CAPACITOR
C150 ELE 4.7U/50V CAPACITOR C32 CAR 0.1U/50V CAPACITOR
C151 ELE 4.7U/50V CAPACITOR C350 ELE 4.7U/50V CAPACITOR
C152 CAR 1000P/100V CAPACITOR C351 ELE 4.7U/50V CAPACITOR
C153 ELE 10U/25V CAPACITOR C352 CAR 1000P/100V CAPACITOR
C154 ELE 10U/25V CAPACITOR C353 ELE 10U/25V CAPACITOR
C155 CAR 15P/500V CAPACITOR C354 ELE 10U/25V CAPACITOR
C156 ELE 100U/25V CAPACITOR C355 CAR 15P/500V CAPACITOR
C157 CAR 47P/500V CAPACITOR C356 ELE 100U/25V CAPACITOR
C158 CAR 47P/500V CAPACITOR C357 CAR 47P/500V CAPACITOR
C159 CAR 47P/500V CAPACITOR C358 CAR 47P/500V CAPACITOR
C16 ELE 2200U/25V "RX" CAPACITOR h<26mm C359 CAR 47P/500V CAPACITOR
C160 MAL 0.047U/100V CAPACITOR C360 MAL 0.047U/100V CAPACITOR
C161 CAR 47P/500V CAPACITOR C361 CAR 47P/500V CAPACITOR
C162 CAR 150P/100V CAPACITOR C362 CAR 150P/100V CAPACITOR
C163 MAL 0.1U/100V CAPACITOR C363 MAL 0.1U/100V CAPACITOR
C164 ELE 100U/16V CAPACITOR C364 ELE 100U/16V CAPACITOR
C17 CAR 0.1U/50V CAPACITOR C401 ELE 4.7U/50V CAPACITOR
C20 ELE 4.7U/50V CAPACITOR C402 CAR 1000P/100V CAPACITOR
C201 ELE 4.7U/50V CAPACITOR C403 MAL 0.056U/100V CAPACITOR
C202 CAR 1000P/100V CAPACITOR C404 MAL 0.056U/100V CAPACITOR
C203 MAL 0.056U/100V CAPACITOR C405 MAL 0.056U/100V CAPACITOR
C204 MAL 0.056U/100V CAPACITOR C406 MAL 0.1U/100V CAPACITOR
C205 MAL 0.056U/100V CAPACITOR C407 MAL 0.056U/100V CAPACITOR
C206 MAL 0.1U/100V CAPACITOR C408 MAL 0.056U/100V CAPACITOR
C207 MAL 0.056U/100V CAPACITOR C409 MAL 0.1U/100V CAPACITOR
C208 MAL 0.056U/100V CAPACITOR C450 ELE 4.7U/50V CAPACITOR
C209 MAL 0.1U/100V CAPACITOR C451 ELE 4.7U/50V CAPACITOR
C21 ELE 4.7U/50V CAPACITOR C452 CAR 1000P/100V CAPACITOR
C22 ELE 220U/25V CAPACITOR C453 ELE 10U/25V CAPACITOR
C23 ELE 220U/25V CAPACITOR C454 ELE 10U/25V CAPACITOR
C24 CAR 0.1U/50V CAPACITOR C455 CAR 15P/500V CAPACITOR
C249 CAR 0.1U/50V CAPACITOR C456 ELE 100U/25V CAPACITOR
C25 CAR 0.1U/50V CAPACITOR C457 CAR 47P/500V CAPACITOR
C250 ELE 4.7U/50V CAPACITOR C458 CAR 47P/500V CAPACITOR
ACA-2664
Electrical parts list（MAIN PCB）
Electrical parts list / ACA-2664

Block No. 02
! Item Parts number Parts name Remarks ! Item Parts number Parts name Remarks
C459 CAR 47P/500V CAPACITOR R113 10KΩ1/4W RESISTOR
C460 MAL 0.047U/100V CAPACITOR R114 22KΩ1/4W RESISTOR
C461 CAR 47P/500V CAPACITOR R115 1KΩ1/4W RESISTOR
C462 CAR 150P/100V CAPACITOR R12 1KΩ1/4W RESISTOR
C463 MAL 0.1U/100V CAPACITOR R13 27KΩ1/4W RESISTOR
C50 CAR 0.1U/50V CAPACITOR R14 15KΩ1/4W RESISTOR
C51 CAR 0.1U/50V CAPACITOR R15 130KF1/4W±1% RESISTOR
C52 CAR 0.1U/50V CAPACITOR R150 5.6KΩ1/4W RESISTOR
D01 1N4148 GE DIODE R151 22KΩ1/4W RESISTOR
D02 1N4148 GE DIODE R152 1KΩ1/4W RESISTOR
D03 1N4148 GE DIODE R153 9.1KΩ1/4W RESISTOR
D04 1N4004 DIODE R154 9.1KΩ1/4W RESISTOR
D05 FR154 DIODE R155 1KΩ1/4W RESISTOR
D06 FR154 DIODE R156 1KΩ1/4W RESISTOR
D07 FR154 DIODE R157 100Ω1/4W RESISTOR
D08 FR154 DIODE R158 100Ω1/4W RESISTOR
D12 02N DIODE FAST RECOVERY R159 100Ω1/4W RESISTOR
D13 02C DIODE FAST RECOVERY R16 51KΩ1/4W±1% RESISTOR
D151 1N4148 GE DIODE R160 100Ω1/4W RESISTOR
D17 1N5404 DIODE 400V/3A R161 1KΩ1/4W RESISTOR
D251 1N4148 GE DIODE R162 15KΩ1/4W RESISTOR
D351 1N4148 GE DIODE R163 560Ω1/4W RESISTOR
D451 1N4148 GE DIODE R164 100Ω1/4W RESISTOR
F01 BXS-03A FUSE HOLDER GOLD PLATED R165 4.7KΩ1/4W RESISTOR
FUSE01 ZH270-25A AUTO FUSE R166 1.8KΩ1/4W RESISTOR
IC01 KIA494AP I.C R167 100Ω1/4W RESISTOR
IC101 JRC4558 I.C R168 220Ω1/4W RESISTOR
IC102 JRC4558 I.C R169 220Ω1/4W RESISTOR
IC103 JRC4558 I.C R17 10Ω1/2W RESISTOR
IC203 JRC4558 I.C R170 0.12Ω3W RESISTOR
IC301 JRC4558 I.C R171 0.12Ω3W RESISTOR
IC302 JRC4558 I.C R172 0.12Ω3W RESISTOR
IC303 JRC4558 I.C R173 0.12Ω3W RESISTOR
IC403 JRC4558 I.C R174 1.5KΩ1/4W RESISTOR
L02 CL-310,1.8uH INDUCTOR 8T R175 30KΩ1/4W RESISTOR
LED01 SAM3270∮3LED R176 56KΩ1/4W RESISTOR
P01 JSZ3-06C POWER INPUT JACK GOLD PLATED R177 680Ω2W RESISTOR
R01 4.7KΩ1/4W RESISTOR R178 4.7Ω1/2W RESISTOR
R02 4.7KΩ1/4W RESISTOR R18 4.7KΩ1/4W RESISTOR
R03 10KΩ1/4W RESISTOR R19 4.7KΩ1/4W RESISTOR
R04 68KΩ1/4W RESISTOR R20 10KΩ1/4W RESISTOR
R05 10Ω1/4W RESISTOR R201 1KΩ1/4W RESISTOR
R06 10KΩ1/4W RESISTOR R203 1KΩ1/4W RESISTOR
R07 1KΩ1/4W RESISTOR R204 10KΩ1/4W RESISTOR
R08 22KΩ1/4W RESISTOR R205 47KΩ1/4W RESISTOR
R09 33KΩ1/4W RESISTOR R206 10.2KΩ1/4W±1% RESISTOR
R10 15KΩ1/4W RESISTOR R207 1KΩ1/4W RESISTOR
R101 1KΩ1/4W RESISTOR R208 56KΩ1/4W RESISTOR
R103 1KΩ1/4W RESISTOR R209 68KΩ1/4W RESISTOR
R104 10KΩ1/4W RESISTOR R21 4.7KΩ1/4W RESISTOR
R105 56KΩ1/4W RESISTOR R210 56KΩ1/4W RESISTOR
R106 10KΩ1/4W RESISTOR R211 1KΩ1/4W RESISTOR
R107 1KΩ1/4W RESISTOR R212 10KΩ1/4W RESISTOR
R108 56KΩ1/4W RESISTOR R213 10KΩ1/4W RESISTOR
R109 68KΩ1/4W RESISTOR R214 22KΩ1/4W RESISTOR
R11 15KΩ1/4W RESISTOR R215 1KΩ1/4W RESISTOR
R110 56KΩ1/4W RESISTOR R22 1.2KΩ1/4W RESISTOR
R111 1KΩ1/4W RESISTOR R23 51KΩ1/4W RESISTOR
R112 10KΩ1/4W RESISTOR R24 1.2KΩ1/4W RESISTOR
ACA-2664
Electrical parts list（MAIN PCB）
Electrical parts list / ACA-2664

Block No. 03
! Item Parts number Parts name Remarks ! Item Parts number Parts name Remarks
R25 10KΩ1/4W RESISTOR R358 100Ω1/4W RESISTOR
R250 5.6KΩ1/4W RESISTOR R359 100Ω1/4W RESISTOR
R251 22KΩ1/4W RESISTOR R36 270Ω2W RESISTOR
R252 1KΩ1/4W RESISTOR R360 100Ω1/4W RESISTOR
R253 9.1KΩ1/4W RESISTOR R361 1KΩ1/4W RESISTOR
R254 9.1KΩ1/4W RESISTOR R362 15KΩ1/4W RESISTOR
R255 1KΩ1/4W RESISTOR R363 560Ω1/4W RESISTOR
R256 1KΩ1/4W RESISTOR R364 100Ω1/4W RESISTOR
R257 100Ω1/4W RESISTOR R365 4.7KΩ1/4W RESISTOR
R258 100Ω1/4W RESISTOR R366 1.8KΩ1/4W RESISTOR
R259 100Ω1/4W RESISTOR R367 100Ω1/4W RESISTOR
R26 220Ω1/4W RESISTOR R368 220Ω1/4W RESISTOR
R260 100Ω1/4W RESISTOR R369 220Ω1/4W RESISTOR
R261 1KΩ1/4W RESISTOR R37 270Ω2W RESISTOR
R262 15KΩ1/4W RESISTOR R370 0.12Ω3W RESISTOR
R263 560Ω1/4W RESISTOR R371 0.12Ω3W RESISTOR
R264 100Ω1/4W RESISTOR R372 0.12Ω3W RESISTOR
R265 4.7KΩ1/4W RESISTOR R373 0.12Ω3W RESISTOR
R266 1.8KΩ1/4W RESISTOR R374 1.5KΩ1/4W RESISTOR
R267 100Ω1/4W RESISTOR R375 30KΩ1/4W RESISTOR
R268 220Ω1/4W RESISTOR R376 56KΩ1/4W RESISTOR
R269 220Ω1/4W RESISTOR R377 680Ω2W RESISTOR
R27 220Ω1/4W RESISTOR R378 4.7Ω1/2W RESISTOR
R270 0.12Ω3W RESISTOR R39 10KΩ1/2W RESISTOR
R271 0.12Ω3W RESISTOR R40 10KΩ1/2W RESISTOR
R272 0.12Ω3W RESISTOR R401 1KΩ1/4W RESISTOR
R273 0.12Ω3W RESISTOR R403 1KΩ1/4W RESISTOR
R274 1.5KΩ1/4W RESISTOR R404 10KΩ1/4W RESISTOR
R275 30KΩ1/4W RESISTOR R405 47KΩ1/4W RESISTOR
R276 56KΩ1/4W RESISTOR R406 10.2KΩ1/4W±1% RESISTOR
R277 680Ω2W RESISTOR R407 1KΩ1/4W RESISTOR
R278 4.7Ω1/2W RESISTOR R408 56KΩ1/4W RESISTOR
R28 1KΩ1/4W RESISTOR R409 68KΩ1/4W RESISTOR
R29 1KΩ1/4W RESISTOR R410 56KΩ1/4W RESISTOR
R30 47Ω1/4W RESISTOR R411 1KΩ1/4W RESISTOR
R301 1KΩ1/4W RESISTOR R412 10KΩ1/4W RESISTOR
R303 1KΩ1/4W RESISTOR R413 10KΩ1/4W RESISTOR
R304 10KΩ1/4W RESISTOR R414 22KΩ1/4W RESISTOR
R305 56KΩ1/4W RESISTOR R415 1KΩ1/4W RESISTOR
R306 10KΩ1/4W RESISTOR R44 10KΩ1/4W RESISTOR
R307 1KΩ1/4W RESISTOR R45 47Ω1/4W RESISTOR
R308 56KΩ1/4W RESISTOR R450 5.6KΩ1/4W RESISTOR
R309 68KΩ1/4W RESISTOR R451 22KΩ1/4W RESISTOR
R31 47Ω1/4W RESISTOR R452 1KΩ1/4W RESISTOR
R310 56KΩ1/4W RESISTOR R453 9.1KΩ1/4W RESISTOR
R311 1KΩ1/4W RESISTOR R454 9.1KΩ1/4W RESISTOR
R312 10KΩ1/4W RESISTOR R454 9.1KΩ1/4W RESISTOR
R313 10KΩ1/4W RESISTOR R455 1KΩ1/4W RESISTOR
R314 22KΩ1/4W RESISTOR R456 1KΩ1/4W RESISTOR
R315 1KΩ1/4W RESISTOR R457 100Ω1/4W RESISTOR
R32 47Ω1/4W RESISTOR R458 100Ω1/4W RESISTOR
R33 47Ω1/4W RESISTOR R459 100Ω1/4W RESISTOR
R350 5.6KΩ1/4W RESISTOR R46 47Ω1/4W RESISTOR
R351 22KΩ1/4W RESISTOR R460 100Ω1/4W RESISTOR
R352 1KΩ1/4W RESISTOR R461 1KΩ1/4W RESISTOR
R353 9.1KΩ1/4W RESISTOR R462 15KΩ1/4W RESISTOR
R355 1KΩ1/4W RESISTOR R463 560Ω1/4W RESISTOR
R356 1KΩ1/4W RESISTOR R464 100Ω1/4W RESISTOR
R357 100Ω1/4W RESISTOR R465 4.7KΩ1/4W RESISTOR
ACA-2664
Electrical parts list（MAIN PCB）
Electrical parts list / ACA-2664

Block No. 04
! Item Parts number Parts name Remarks ! Item Parts number Parts name Remarks
R466 1.8KΩ1/4W RESISTOR T256 2N5551 TRANSISTOR TO-92(E.B.C)
R467 100Ω1/4W RESISTOR T257 2N5551 TRANSISTOR TO-92(E.B.C)
R468 220Ω1/4W RESISTOR T258 2SC2383 TRANSISTOR TO-92L(E.C.B)
R469 220Ω1/4W RESISTOR T259 2SA1013 TRANSISTOR TO-92L(E.C.B)
R470 0.12Ω3W RESISTOR T260 2SC2383 TRANSISTOR TO-92L(E.C.B)
R471 0.12Ω3W RESISTOR T261 2SA1013 TRANSISTOR TO-92L(E.C.B)
R472 0.12Ω3W RESISTOR T262 KTD718 TRANSISTOR TO-3P(B.C.E)
R473 0.12Ω3W RESISTOR T263 KTB688 TRANSISTOR TO-3P(B.C.E)
R474 1.5KΩ1/4W RESISTOR T264 KTD718 TRANSISTOR TO-3P(B.C.E)
R475 30KΩ1/4W RESISTOR T265 KTB688 TRANSISTOR TO-3P(B.C.E)
R476 56KΩ1/4W RESISTOR T266 2N5551 TRANSISTOR TO-92(E.B.C)
R477 680Ω2W RESISTOR T267 9014C TRANSISTOR TO-92(E.B.C)
R478 4.7Ω1/2W RESISTOR T351 2N5551 TRANSISTOR TO-92(E.B.C)
R48 56KΩ1/4W RESISTOR T352 2N5551 TRANSISTOR TO-92(E.B.C)
RCA AV4-8.4-13 RCA JACK GOLD PLATED T353 2N5401 TRANSISTOR TO-92(E.B.C)
SPK01 JSZ4-02 SPEAKER OUT JACK GOLD PLATED T354 2N5401 TRANSISTOR TO-92(E.B.C)
SPK02 JSZ4-02 SPEAKER OUT JACK GOLD PLATED T355 2N5401 TRANSISTOR TO-92(E.B.C)
SW101 KD2304-02G9 CROSSOVER SWITCH T356 2N5551 TRANSISTOR TO-92(E.B.C)
SW301 KD2304-02G9 CROSSOVER SWITCH T357 2N5551 TRANSISTOR TO-92(E.B.C)
T01 9015C TRANSISTOR TO-92(E.B.C) T358 2SC2383 TRANSISTOR TO-92L(E.C.B)
T02 9015C TRANSISTOR TO-92(E.B.C) T359 2SA1013 TRANSISTOR TO-92L(E.C.B)
T03 9014C TRANSISTOR TO-92(E.B.C) T360 2SC2383 TRANSISTOR TO-92L(E.C.B)
T04 2N5401 TRANSISTOR TO-92(E.B.C) T361 2SA1013 TRANSISTOR TO-92L(E.C.B)
T05 9014C TRANSISTOR TO-92(E.B.C) T362 KTD718 TRANSISTOR TO-3P(B.C.E)
T06 9014C TRANSISTOR TO-92(E.B.C) T363 KTB688 TRANSISTOR TO-3P(B.C.E)
T07 2SA1013 TRANSISTOR TO-92L(E.C.B) T364 KTD718 TRANSISTOR TO-3P(B.C.E)
T08 9014C TRANSISTOR TO-92(E.B.C) T365 KTB688 TRANSISTOR TO-3P(B.C.E)
T09 9015C TRANSISTOR TO-92(E.B.C) T366 2N5551 TRANSISTOR TO-92(E.B.C)
T10 9015C TRANSISTOR TO-92(E.B.C) T367 9014C TRANSISTOR TO-92(E.B.C)
T11 FQP50N06 MOSFET TO-220 T451 2N5551 TRANSISTOR TO-92(E.B.C)
T12 FQP50N06 MOSFET TO-220 T452 2N5551 TRANSISTOR TO-92(E.B.C)
T13 FQP50N06 MOSFET TO-220 T453 2N5401 TRANSISTOR TO-92(E.B.C)
T14 FQP50N06 MOSFET TO-220 T454 2N5401 TRANSISTOR TO-92(E.B.C)
T15 FQP50N06 MOSFET TO-220 T455 2N5401 TRANSISTOR TO-92(E.B.C)
T151 2N5551 TRANSISTOR TO-92(E.B.C) T456 2N5551 TRANSISTOR TO-92(E.B.C)
T152 2N5551 TRANSISTOR TO-92(E.B.C) T457 2N5551 TRANSISTOR TO-92(E.B.C)
T153 2N5401 TRANSISTOR TO-92(E.B.C) T458 2SC2383 TRANSISTOR TO-92L(E.C.B)
T154 2N5401 TRANSISTOR TO-92(E.B.C) T459 2SA1013 TRANSISTOR TO-92L(E.C.B)
T155 2N5401 TRANSISTOR TO-92(E.B.C) T460 2SC2383 TRANSISTOR TO-92L(E.C.B)
T156 2N5551 TRANSISTOR TO-92(E.B.C) T461 2SA1013 TRANSISTOR TO-92L(E.C.B)
T157 2N5551 TRANSISTOR TO-92(E.B.C) T462 KTD718 TRANSISTOR TO-3P(B.C.E)
T158 2SC2383 TRANSISTOR TO-92L(E.C.B) T463 KTB688 TRANSISTOR TO-3P(B.C.E)
T159 2SA1013 TRANSISTOR TO-92L(E.C.B) T464 KTD718 TRANSISTOR TO-3P(B.C.E)
T16 FQP50N06 MOSFET TO-220 T465 KTB688 TRANSISTOR TO-3P(B.C.E)
T160 2SC2383 TRANSISTOR TO-92L(E.C.B) T466 2N5551 TRANSISTOR TO-92(E.B.C)
T161 2SA1013 TRANSISTOR TO-92L(E.C.B) T467 9014C TRANSISTOR TO-92(E.B.C)
T162 KTD718 TRANSISTOR TO-3P(B.C.E) TH01 50KTH NTC RESISTOR
T163 KTB688 TRANSISTOR TO-3P(B.C.E) TR01 37PHI TRANSFORMER 362315-41004
T164 KTD718 TRANSISTOR TO-3P(B.C.E) VR101 F-16KG B20K L10REA(M) RHEOSTAT 90°
T165 KTB688 TRANSISTOR TO-3P(B.C.E) VR102 F-16KG B500K L10REA(M) RHEOSTAT 90°
T166 2N5551 TRANSISTOR TO-92(E.B.C) VR103 F-16KJ3 C100K L10REA(M) RHEOSTAT 90°
T167 9014C TRANSISTOR TO-92(E.B.C) VR301 F-16KG B20K L10REA(M) RHEOSTAT 90°
T22 9015C TRANSISTOR TO-92(E.B.C) VR302 F-16KG B500K L10REA(M) RHEOSTAT 90°
T23 9014C TRANSISTOR TO-92(E.B.C) VR303 F-16KJ3 C100K L10REA(M) RHEOSTAT 90°
T251 2N5551 TRANSISTOR TO-92(E.B.C) Z1 1N4744 DIODE 15V/1W
T252 2N5551 TRANSISTOR TO-92(E.B.C) Z2 1N4744 DIODE 15V/1W
T253 2N5401 TRANSISTOR TO-92(E.B.C)
T254 2N5401 TRANSISTOR TO-92(E.B.C)
T255 2N5401 TRANSISTOR TO-92(E.B.C)
ACA-2664
Electrical parts list（MAIN PCB）
Electrical parts list / ACA-2664

NO Item Unit
Front
Rear
Front
Rear
Front
Rear
Front L/R
Rear L/R
Product specification4 BTL Output power
Max. output power
Rated
Distortion: 10%
Rated
Distortion: 0.7%
Condition Capability request
(10Hz~20kHz)
+1/- 3 (10Hz~20kHz)
%
Front L/R
Rear L/R
1Gain-frequency
response Work normally dB
Front L/R
Rear L/R
+1/- 3
Rated
Distortion: 0.7%
Rated
Distortion:10% Rear L/R
Product specification
≤0.7%
Max. output power
Front L/R
Rear L/R
Front L/R
2Total harmonic
distortion and noise
Work normally
10W,4Ω
3
Normal Output
power(4Ω)
Rated
Distortion: 0.7%
Normal Output
power(2Ω)
Rated
Distortion: 10%
Max. output power
W
Rear L/R
Front L/R
dB
W
Front L/R
W
Signal noise ratio
(Input Terminal
Open)
Rated
1kHz
Distortion: 10%
Front L/R
5
Signal noise ratio
(Input Terminal
Short)
Rated
1kHz
Distortion: 10%
6 Separation
Volume max
Distortion:10%
High input
7 Be sensitive to input
≥76
A-Weighting
Rear L/R
Product specification
Front L/R
Front L/R
Rear L/R
Front L/R
Rear L/R
dB ≥71
Full range
≥40
output noise
No signal inpu
t
(Input Terminal
O
p
en
)
mV ≤3
dB
≥30
Work normally
Distortion:0.7%
1 kHz
10 kHz
Low input
Product specificationmV
CH1: +1/-3 CH2: +1/-3
Sample1：
CH1: ＜0.06 CH2: ＜0.02
CH3: +1/-3 CH4: +1/-3
CH1: ≥85.78 CH2: ≥89.03
CH3: ＜0.02 CH4: ＜0.04
CH1: ≥107.75 CH2: ≥109.21
CH3: ≥85.50 CH4: ≥87.23
CH1: ≥141.82 CH2: ≥142.28
CH3: ≥109.58 CH4: ≥109.69
CH1: ≥92.57 CH2: ≥97.36
CH3: ≥143.47 CH4: ≥143.26
CH1: ≥142.50 CH2: ≥145.03
CH3: ≥95.90 CH4: ≥100.83
CH1: ≥175.55 CH2: ≥180.29
CH3: ≥143.81 CH4: ≥147.48
CH1: ≥94.3/96.3 CH2: ≥96.7/99.9
CH3: ≥178.21 CH4: ≥176.99
CH1&CH2: ≥210.20 W/4Ω; W/2Ω
CH3&CH4: ≥208.45 W/4Ω; W/2Ω
CH1&CH2: ≥318.50 W/4Ω; W/2Ω
CH3&CH4: ≥322.45 W/4Ω; W/2Ω
CH1&CH2: ≥391.60 W/4Ω; W/2Ω
CH3&CH4: ≥396.58 W/4Ω; W/2Ω
1.5/1.5
1.5/1.5
---
220
CH1 & CH2: ≥44/45 CH3 & CH4: ≥42/41
CH1 & CH2: ≥42/44 CH3 & CH4: ≥38/40
CH3: ≥93.6/97.4 CH4: ≥95.2/98.8
Rear L/R
Rear L/R CH3: ≥96.4/100.0 CH4: ≥96.0/98.0
CH1: ≥95.8/100.2 CH2: ≥94.3/97.7
≥71
Full range
≥76
A-Weighting
Car audio amplifier capability request
Client Name: AKAI Serial Number :
Model Name: ACA-2664 Accomplished Q'ty:
PO. Number: Accomplished Date:
Capability Request / ACA-2664 1/2

NO Item Unit
Condition Capability request Sample1：
Car audio amplifier capability request
Client Name: AKAI Serial Number :
Model Name: ACA-2664 Accomplished Q'ty:
PO. Number: Accomplished Date:
Work normally Frequency kHz
No signal input Amplifier: +/- 32.16 Preamp: +/- 16
THD10% 2ΩAmplifier: +/- 26.45 Preamp: +/- 15
THD10% 4ΩAmplifier: +/- 28.79 Preamp: +/- 16
1/2f 23 Hz CH1 & CH2: ≥+ 8 CH3 & CH4: ≥+8
f 45 Hz CH1 & CH2: ≥+ 12 CH3 & CH4:≥+12
2f 90 Hz CH1 & CH2: ≥+ 8 CH3 & CH4: ≥+8
1/2f 15 Hz CH1 & CH2: - 0.5 CH3 & CH4: -0.5
f30 Hz CH1 & CH2: - 3 CH3 & CH4: -3
2f 60 Hz CH1 & CH2: - 8 CH3 & CH4: -8
1/2f 100 Hz CH1 & CH2: - 0.5 CH3 & CH4: -0.5
f200 Hz CH1 & CH2: - 3 CH3 & CH4: -3
2f 400 Hz CH1 & CH2: - 12 CH3 & CH4: -12
1/2f 17 Hz CH1 & CH2: - 16 CH3 & CH4: -16
f35 Hz CH1 & CH2: - 3 CH3 & CH4: -3
2f 70 Hz CH1 & CH2: + 1 CH3 & CH4: +1
1/2f 2.25 KHz CH1 & CH2: - 7 CH3 & CH4: -7
f4.5 KHz CH1 & CH2: - 3 CH3 & CH4: -3
2f 9 KHz CH1 & CH2: - 1 CH3 & CH4: -1
Operated by: Xiaoyulin Approved by: Zhaozhigang
CH1&CH2 contra-phase / CH3&CH4 contra-phase
Date: 2006/03/02
8On-off power part
testing
9Phase between channels Work normally ---
10 Gain difference
between channels dB ≤3
Volume output ( max~max
decrese 46dB )
Not self-excitation and
parasitism
V
In-phase
Product specification
Power
supply
voltage
11 Stability Rated ---
12 Bass boost range dB Product specification
Low-Pass crossover
（Max.）dB Product specification
13
Low-Pass crossover
（Min.）dB Product specification
High-Pass crossover
（Max.）dB Product specification
14
High-Pass crossover
（Min.）dB Product specification
Product specification
Static
15 Power supply
(Rated)
Distortion:10% W
16 Function testing
Power on delay
Product specificationDC offset Protection
Amplifier on/off
no sound on/off
caraudio on/off
Remote Switch
Short circuit Protection
Temperature testing 1/3 Max. Power 4hours testing OK
[power supply (-) terminal] wit
h
[speaker (+/-) terminal]、[VR crust]
、[RCA terminal]
OK
17 terminal short-circuit
testing
[Heat sink] with [power supply (+/-)
terminal]、[speaker (+/-) terminal]、
[VR crust] 、[RCA terminal]
No noise or spark
OK
[power supply (+) terminal] with
[speaker (+/-) terminal]、[VR crust]
、[RCA terminal]
OK
35.79
Output in-phase
≤1.5
OK
/
3s
/
OK
OK
OK
OK
OK
OK
Note:
Power supply voltage: 14.0V
Capability Request / ACA-2664 2/2