Panasonic SA-AK343P Instructions for use

nSYSTEM
SC-
A
K343 (P) Music center: S
A
-
A
K343 (P)
Speaker: SB-
A
K340 (P)
(Refer to the original service manual for information of the technical
specifications.)
1 Notes 3
2 Illustration of IC's, Transistors and Diodes (Updating) 3
3 Schematic Diagram (Updating) 5
3.1. (B) Main Circuit 5
3.2. (C) Panel Circuit 10
3.3. (D) Transformer Circuit 11
©2006 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-AK343P
Colour
(S) .... Silver Type
Notes:
1. Specifications are subject to change without notice. Mass and
dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum
analyzer.
3.4. (E) Power Circuit 12
4 Printed Circuit Board (Updating) 15
4.1. (B) Main P.C.B. 16
4.2. (C) Panel P.C.B. 17
4.3. (E) Power P.C.B. 18
5 Exploded Views (Updating) 19
CD Stereo System
Please use this manual together with the service manual for Model No. [SA-AK340P/PC-S, Order No.
MD0510381C1].
Specifications
CONTENTS
Page Page
ORDER NO. MD0602035A1
A6

5.1. Cabinet Parts Location 20
5.2. Deck Mechanism Parts Location (RAA4502-1S) 22
5.3. Packaging 23
6 Parts Location and Replacement Parts List (Updating) 25
2
SA-AK343P

1 Notes
This service manual does not contain the following information, because of the reference to the original model of SA-AK340P/PC-
S.


·

Assembling & Disassembling


·

Service Positions


·

Self-diagnosis & special mode setting


·

Terminal function of IC’s
The following sections contains information that has been changed or modified.
2 Illustration of IC's, Transistors and Diodes (Updating)
Note: With reference to page 48 (section 15) of original service manual for SA-AK340P/PC-S. Below are the updates.
B3AAA0000803
A
Ca
Cathode
Anode
B0BA3R900006
2SB0709AHL
B1ABGC000005
3
SA-AK343P

4
SA-AK343P

3 Schematic Diagram (Updating)
3.1. (B) Main Circuit
SA-AK343P
5

Note: With reference to page 61~64 (section 18.3) of original service manual for SA-AK340P/PC-S. Below is the updates.
N
C2703
470P
R2212
3.3K
R2112
3.3K
1
2
3
4
5
6
7
8
15 16 17 18 19 20 21 22 23
35
36
37
38
39
40
41
42
484950515253545556
934
24
47
10 33
25
46
11 32
12 31
26
45
27
44
13 30
14 29
28
43
IC2803
C1BB00001121
AUDIO SOUND PROCESSOR C0A
A
C2212
1
C2112
1
C2976
16V10
C2232 1
C2132 1
C2222 1
C2122 1
D2191
D2583
B0BC9R000008
R2181 470
R2183 1K C2181 1
C2182 1
C2183 0.22
C2113 6800P
C2213 6800P
PB_L
PB_R
GND
REC_IN_L
REC_IN_R
+B
W2503
0
W2520
0
W2577
0
1
2
3
4
5
6
14
12
10
8
7
9
11
13
C2175 3300P
C2173 0.01
C2174 0.01
C2583
16V100
C2509
16V33 R2509
560
REC_H
MO+B
MO_GND
NC
DECK1_H
NC
MOTOR
NC
C2171 0.1
C2172 0.1
C2301 0.22
C2302 0.22
R2401 15K
R2311
470
R2312
10K
R2412
10K
R2355
270K
C2442
1
C2342
1
C2312
1
R2455
270K
R2314
0
R2145
1K R2146
1K
R2701
1K
W2511
0
R2703
220K
R2413
100K
R2245
1K
R2313
100K
C2401 0.22
C2311
1
C2402 0.22
C2272 0.15
C2192 0.1
R2195 10K
R2281 470
R2282 0
R2193
4.7K
R2283
100K
C2283
0.047
R2194
100K C2194
0.15
C2271 0.15
C2274 0.01
C2273 0.01
C2275
3300P C2588
0.1
C2585
220P R2585 330K
R2510
220 C2584
220P
R2512
100K
R2511
2.2K
C2511
50V2.2
R2411
470
R2414
0
R2246
1K D2241
B0ACCK000005
R2247
100K C2245
16V10
C2411
1
C241
47P
C2706
50V1
R2706
3.3K
C2412
1
R2586
1.2K
R2584
330K
W2546
0
W2526
0
R2587 1.2K
R2508
1K
R2504
100
R2501
330K
R2102
3.3K
R2202
3.3K
R2503
2.7K
R2502
82K
C2507
0.22
C2503
1
C2501
1
R2507 100K
MUTE_A ASP_DA +15V ASP_CLK SW15V
A_GND
+15V
SW5V
MOT_12V
P_GND
LM_1 -9V A_GND HP_R HP_L
R2203
2.2K
D2503
B0ADCC000002
REC[59]
MTR[58]
DECK_H
R2675
Q2978
B1GDCFJJ0047
REC:ON/OFF CONTROL SWITCH
Q2980
B1GDCFJJ0047
SUPPLY CONTROL SWITCH
(DECK MOTOR)
Q2501
B1ABCF000176
LEVEL METER 
CONTROL SWITCH
R2248
6.8K


4
5
R2702
1K
Q2341,Q2441
B1ABGC000005
HEADPHONE MUTING
R2345
1.5K
R2445
1.5K
R2357
100K
R2457
100K
C2344
0.47
C2444
0.47
R2447
1
R2446
3.3K
R2346
3.3K
R2347
1
R
2
R
2
R
2
R
2
Q2511
B1GDCFJJ0047
MUTING CONTROL
Q2980
R2173 4.7K R2172 6.8K
R2196 10K
R2273
4.7K R2271 4.7K
CN2803
MAIN CIRCUIT
SCHEMATIC DIAGRAM - 3 : +B SIGNAL
: -B SIGNAL
TO
DECK
CIRCUIT
(CN1001) ON
SCHEMATIC
DIAGRAM-7
R2211
2.2K
C2252
1
R2111
2.2K
C2254
0
R2104 27K R2103 2.2K
R2204 27K
R2674
47K
W2553
0
R2673 47K R2672 10K R2671 10K
C2191 50V4.7
C2282 1
C2281 1
B0ACCK000005
C2121
R2122
3.3K
R2222
3.3K
R2221
R2121
3.3K
TUNER RCH
3.3K
3300PC2221 3300P
C2114
0
C2152
1
C2154
0
IN-L1
IN-R1
IN-R2
IN-R3
IN-R4
IN-R5
IN-R6
GND
REF-IN
REF-OUT REC_L PRE-VIN-R HB-MIX-IN HB-MIX-OUT HB-FLT-OUT HB-ATT-IN HB-ATT-OUT HB-LPF-IN HB-LPF-OUT NC
NC
TRE-R
MID-R1
MID-R2
BASS-R2
T-OUT-R
R-OUT
VCC
CLK
DATA
NC
L-OUT
POST-VM-L
T-OUT-L
BASS-L2 BASS-L1
MID-L2 MID-L1
TRE-L
SUR2 SUR1
REC-L
SV_OUT-L
OP-OUT
OP-IN
PRE-VIN-L
POST-VM-R
BASS-R1
HARMIN HARMOUT GV-OUT-R
IN-L2
IN-L3
IN-L4
IN-L5
IN-L6
C2214
0
W2501
0
R2182 0
R2704 220K
W2514
0
W2531
0
W2513
0
W2530
0
: FM/AM SIGNAL LINE : CD SIGNAL LINE
: MAIN SIGNAL LINE
: TAPE RECORD SIGNAL LINE
: TAPE PLAYBACK SIGNAL LINE
Q2142
B1ABCF000176
AGC CONTROL SWITCH
Q2311,Q2411
B1ABGC000005
MUTING SWITCH
Q2242
B1ABCF000176
AGC CONTROL SWITCH
Q2311
Q2411
Q2341
Q2441
Q2511
C2124 0 C2224 0 C2134 0 C2234 0
C2161 0.01
C2261 0.01
C2581 16V100
W2506
0
C2101
1
C2582
16V100
C2201 1
C2193 1
R2505
0
R2301
15K
C2195 0.47
SA-AK343P MAIN CIRCUIT
1/4
C2704
470P
SA-AK343P
6

N
C2703
470P
IC2804
C0AABB000125
IC OP AMP
D2583
B0BC9R000008
C2583
16V100
9
3
R2509
560
R2401 15K
R2311
470
R2312
10K
R2412
10K
R2355
270K
C2442
1
C2342
1
C2312
1
R2455
270K
R2314
0
R2145
1K R2146
1K
R2705
3.3K
R2701
1K
W2511
0
R2703
220K
R2413
100K
R2245
1K
R2313
100K
4
01 0.22
C2311
1
02 0.22
C2272 0.15
71 0.15
74 0.01
73 0.01
5
P
C2588
0.1
C2585
220P R2585 330K
R2510
220 C2584
220P
R2512
100K
R2511
2.2K
C2511
50V2.2
R2411
470
R2414
0
R2246
1K D2241
B0ACCK000005
R2247
100K C2245
16V10
C2411
1
C2313
47P
C2413
47P
C2414
10P
C2314
10P
C2315
16V22
C2415
16V22
C2706
50V1
R2315
56K
R2706
3.3K
C2412
1
R2586
1.2K
R2584
330K
W2546
0
W2526
0
R2587 1.2K
R2508
1K
MUTE_A ASP_DA +15V ASP_CLK SW15V LM_1 -9V A_GND HP_R HP_L +15V
Q2317,Q2417
B1ABGC000005
MUTING SWITCH
R2248
6.8K







1234
8765
R2702
1K
C2705
50V1
C2702
16V100
C2701
0.01
R2316
2.2K R2335
1K
C2433
1
C2325
16V10
R2329
3.3K
W2510
0
R2331
0R2334
0
R2326
0R2328
15K
R2317
10K
R2356
180K
R2456
180K
R2417
10K
C2343
0.47
C2443
0.47
R2416
2.2K
C2331
4700P
C2321
1
R2318
100K
W2508
0
R2418
100K
R2333
15K
R2323
39K
R2423
39K W2512 0
R2435
1K
R2429
3.3K
C2431
4700P
R2421
0
C2421
1














1
2
3
4
5
6
7
8
9
10
11
12
HIGH_L-IN
+15V
MUTE-D-AMP
T-GND
F_HOP
CN2809
A_GND
LOW_R-IN
FAN
LOW_L-IN
ASP_GND
HIGH_R-IN
C2333
1
C2323
0.015
R2434
0
Q2341,Q2441
B1ABGC000005
HEADPHONE MUTING
R2345
1.5K
R2445
1.5K
R2357
100K
R2457
100K
C2344
0.47
C2444
0.47
R2447
1
R2446
3.3K
R2346
3.3K
R2347
1
R2451
0
C2425
16V10
C2943
50V2.2
R2426
0
R2428 15K
R2453
0
R2452
27
R2454
27
R2441
27
R2443
27
R2442
0
R2444
0
R2351
0
C2341
1000P
C2441
1000P
R2353
0
R2352
27
R2354
27
R2341
27
R2343
27
R2342
0
R2344
0
Q2511
B1GDCFJJ0047
MUTING CONTROL
F_HOP
R2273
4.7K R2271 4.7K
T
O
P
O
CI
R
(C
N
S
C
DI
A
R2431
0
R2433
15K
R2704 220K
W2514
0
W2531
0
W2513
0
W2530
0
C2423
0.015
Q2142
B1ABCF000176
AGC CONTROL SWITCH
Q2311,Q2411
B1ABGC000005
MUTING SWITCH
Q2242
B1ABCF000176
AGC CONTROL SWITCH
Q2311
Q2411
Q2317
Q2417
Q2341
Q2441
Q2511
3
01
5
K
R2321
0
R2415
56K
SA-AK343P MAIN CIRCUIT
2/4
C2704
470P
R2149
3.3K
R2249
3.3K
SA-AK343P
7

W2526
0
0.01
C2673
100P
C2671
100P
MUTE_A ASP_DA +15V ASP_CLK SW15V LM_1 -9V A_GND HP_R HP_L
PLLCE_UP
STIDO
PLL_CLK
PLL_DA
R2675
4.7K
SD
DET_OUT
T_GND
CD8V
R2677
120
R2902 33
Q2901
Q2902
R2901 10K
C2903 0.01
C2904 16V100
1
+15V
GND
IN OUT
1
2
3








43
44
45
46
47
48
49
50
42
41
40
39
38
37
36
35
34
33
32
31
302928
27
26
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
81
82
83
84
25
24
232221
2019
18
17
16
15
1413
12
11
10
9
8
7
6
5
4
3
2
1
76
7778
79
80 64 63
65
66
67
68
697071
72
73
7475 51
52
53
54
55
56
57
58
59
60
61
62
NC
STANDBY
FAN
MOT_12V
R2945
10K
D2946
B0ADCJ000020
C2945
16V47 C2944 100P R29
4.7
C2947
6.3V100
R2947
27
R2946
56K
W2572
0
W2571
0
R29
4
10
K
R29
4
47
K
R29
4
100
NC
NC
DCDET
PCONT/EFP/CS
NC
NC
EE_DAT
EE_CLK
MUTE_A
MUTE_DA
MUTE_A
IDCDET
PCONT
MUTE_D_AMP
REG1
REG2
REG3
REG4
REG5
REG6
REG7
REG8
EE_CS/EFP/EPH
LM_1
LM_1 DVREF+
UP-GND
PA_LVL PLLCE
PLLCE_UP
RDS_DA RDS_CLK MODE_A
F_HOP CNVSS
IRESET
BLKCK STIDO SD ASP_DA ASP_CLK PLL_DA PLL_CLK
F_HOP BYTE CNVSS XC_IN XC_OUT /RESET X_OUT VSS XIN VCC
VCC
/NMI RMT
RMT
BLKCK SYNC
SYNC
ST/DO SD NC SW_LV-1 SW_LV-2 ASP_DA ASP_CLK 10DB_ATT PLL_DAT PLL_CLK
/RESTSW
MCLK
MDATA
MLD
STATUS
CD_RST
H.BASS_LED
FL_CLK
FL_DOUT
FL_CS
FL_RESET
V_JOG_B V_JOG_A VOL_LED
SW_LED
FL_CS
FL_RESET
V_JOG_B V_JOG_A VOL_LED
SW_LED
VSS GND
NC
VCC VCC
NC
DECK1_H
REC
MTR
PLG2 PLG1
DECK1_H
REC(59)
MTR(58)
PLG2 PLG1
NC NC
MODE_1
HALF_1
MODE_1
HALF_1
STAND_BY
HOME_SW /RESTSW
MCLK
MDATA
MLD
STATUS
CD_RST
H.BASS_LED
FL_CLK
FL_DOUT
HOME_SW
SPEED
CLOSE_SW
OPEN_SW
CLOSE_SW
OPEN_SW
CHG_PLR[88]
CHG_CW
CHG_CW
CHG_CCW CHG_CCW
ST_SW
PLAY_SW
ST_SW
PLAY_SW
CHG_PLR
BOTTOM_SW
UP_SENSOR
DECK2
KEY3
KEY2
KEY1
PHOTO_2
BOTTOM_SW
UP_SENSOR
DECK2
KEY3
KEY2
KEY1
PHOTO_2
PHOTO_1
PHOTO_1 AVSS
VREF
AVCC
VREF+
VCC
UP_GND
SYS6V
UP_GND
VREF+
PCONT
D2950 B0ACCK000005
DEMO
IC2801
C2CBYY000053
MICROPROCESSOR
R2864
100
R2801
10K
W2558
0
W2540
0
R2852 100
R2853 100
R2848 100 R2847 100
R2849 1K R2843 1K
W2557 0
R2846 4.7K
R2845 10K R2844 10K R2842 10K W2523 0 R2841 10K
R2820 100K R2819 100K R2818 100K R2817 100K R2830 100K R2831 100K R2832 100K R2833 100K
W2547 0
W2537
0
W2536
0
W2576
0
W2548 0
W2549
0
R2810 22K
R2858 100
R2859 100
R2860 100
R2862 100
R2951
470K
R2966
4.7K
W2550
0
Q2951
Q2952
Q2950
Q2958,Q2960
B1ACKD000006
PLUNGER ON/OFF SWITCH
Q2957,Q2959
B1GBCFLL0037
PLUNGER ON/OFF SWITCH
Q2957
Q2958
Q2960 Q2959
R2802 100
W2545 0
W2543 0
C2821
100P
W2544

0
R2882
10M
W2552
0
R2883
330K C2883 18P R2886
1M R2881
220 C2803
1
C2853
0.1
R2851
47K
D2803
B0ACCK000005
C
5
Q2803
B1GBCFJJ0051

RESET (MICRO-P) SWITCH
B
FA
N
C2882
18P
X2801
H0A327200115
X2802
H2B100500004
R2803 10K
R2861 100
R2955 270K
R2866 47K R2865 47K R2854 47K R2857 47K R2856 47K R2855 47K
R2863
47K
R2950
470K
R2965
4.7K
R2952
1K
SW5V
SPEED
VREF+
R2873
22K
R2871 22K
R2874 4.7K
C2871 330P C2874 330P
W2532 0
C2872 0.022
1
2
3
4
8
7
6
5
NC
VCC
EE_CS
EE_CLK
NC
IC2871 GND
EE.DAT
IC2871
E-EPROM IC
(NOT SUPPLIED)
R2936
1K
B0EAKM000117
D2936
W2559
0
W2560
0
W2555
0
W2556
0
W2539 0
R2937
10K
CN2806
Q2937
Q2936

























+15V
HP_L
HP_GND
HP_R
DGND
SW5V
PA_IN_L
PA_IN_GND
PA_IN_R
MOT10V
SW_LED
VOL_LED
J_VOLA
J_VOl_B
FL_RST
FL_CS
FL_DOUT
FL_CLK
H_BASS_LED
KEY3
KEY2
KEY1
P-GND
RMT
VREF+
SYNC
PCONT
SYS6V
+15V
MOT_12V
CHG_PLR(88)
HP_L
HP_GND
HP_R
UP_GND
SW5V
PA_IN_L
PA_IN_GND
PA_IN_R
MOT_12V
SW_LED
VOL_LED
J_VOLA
J_VOl_B
FL_RESET
FL_CS
FL_DOUT
FL_CLK
H_BASS_LED
KEY3
KEY2
KEY1
P-GND
RMT
VREF+
SYNC
PCONT
SYS6V
123456789
1011121416171819202122232425262729 2830 1315
CN2805












CCW
CW
P_GND
VC_8V
HOME_SW
ST-SW
OPEN_SW
CAM_SENSOR
SW5V
D_GND
PLAY_SW
PLUNGER
UD_SENSOR
BOTTOM_SW
SPEED
CHG_CCW
CHG_CW
P_GND
CD8V
HOME_SW
ST-SW
OPEN_SW
CLOSE_SW
SW5V
D_GND
PLAY_SW
UD_SENSOR
BOTTOM_SW
SPEED
1243 678911 12 13 14 1510
5
C2678 0.01
R2920
4.7K
W2565
0
W2566
0
R2919
4.7K
R2921
4.7K
R2922
10K
CD7.5V
PGND
MCLK
15
14
13
12
11
10
2
4
6
8
9
7
5
3
1
17
16
10
4
6
8
9
7
5
3
2
1
L
A_GND
R
CD_3.3V
CD_GND
LD_S
NC
+7.5V
PGND
MCLK
MDATA
MLD
BLKCK
STAT
/RST
/REST_S
CN2801
MDATA
MLD
SW5V
BLKCK
SW5V
A_GND
R2908
330 W2542 0
R2907
1K
D2901
B0ADCC000002
R2909 2.2K
R2910 330
W2563 0
C2906 
1000P
STATUS
UP_GND
CD_RST
RESTSW
MOT_12V
PLG2
C2957
100P
R2957
1K
R2959
1K
R2953
10K
W2525
0
W2517 0
W2534
0
R2954
10K
R2958
22K
R2960
22K
C2959
100P
R2924
10K
R2925
4.7K
R2928
10K
Q2906
B1ABCF000176
INTERFACE SWITCH
Q2907
B1ABCF000176
CD STATUS INTERFACE
Q2950
B1ACKD000006
DECK SUPPLY
CONTROL SWITCH
Q2951
B1ACKD000006
SUPPLY CONTROL SWITCH
Q2936
B1ACKD000006
CD SUPPLY
CONTROL SWITCH
Q2937
B1GBCFJJ0051
CHANGER PLUNGER
ON/OFF SWITCH
Q2952
B1GBCFLL0037
DECK SUPPLY (PCONT)
CONTROL SWITCH
PLG1
DECK2
PHOTO_1
PHOTO_2
HALF_1
MODE_1
UP_GND
PA_IN_L
PA_IN_R
DVREF+
P_GND
SW5V
R2151 0
R2251 0
R2956 270K
PL2
PL1
DVREF
DECK-2
PL_GND
VREF_GND
PHOTO_PB
MODE_PB
CN2951
HALF_PB
PHOTO_RP
TO
CD SERVO
CIRCUIT
(CN7002) ON
SCHEMATIC
DIAGRAM-1
TO
DECK
MECHANISM
CIRCUIT
(CN971) ON
SCHEMATIC
DIAGRAM-7
TO
PANEL CIRCUIT (CN6601) ON
SCHEMATIC DIAGRAM-4
C2674
R2676 10K
R2912 4.7K
W2569
0
W2561
0
W2570
0
R2914 4.7K
R2916 4.7K
R2918 10K
R2929 10K
R2930 10K
R2931 10K
R2923 0
R2927 4.7K
R2674
47K
R2673 47K R2672 10K R2671 10K
R2132
3.3K
R2232
3.3K
C2131
0R2131 3.3K
R2231
3.3K
R2221
R2121
3.3K
TUNER LCH
TUNER RCH
PLL CLK
2B
2A
TUNER SD
TUNER GND
TUNER DQ/ST
TUNER DQ/ST
+15V
VCC +7.5V
DET OUT
PLL_DA
PLLCE
3.3K
TO
MAIN
CIRCUIT
(1A) ON
SCHEMATIC
DIAGRAM-2
TO
MAIN
CIRCUIT
(1B) ON
SCHEMATIC
DIAGRAM-2
C2901
0.1
W2554 0
Q2901
B1ACKD000006
CONTROL SWITCH Q2902
B1AACF000064
VOLTAGE STABLISER CD3.3V
Q2906
Q2907
W2568 0W2567 0
C2231 0
SA-AK343P MAIN CIRCUIT
3/4
D2677
B0BC7R500001
C2854 10V220
C2940
0.1
TO CRS1 (CN1)
R2868
100K
SA-AK343P
8

W2526
0
MUTE_A ASP_DA +15V ASP_CLK SW15V LM_1 -9V A_GND HP_R HP_L +15V
1













12
11
10
9
8
7
6
5
4
3
2
1
STANDBY
MOT_12V
+15V
-VCC
SW5V
CN2808
CN2810
UP_GND
FL_GND
C2753 0.1
P_GND
CD8V
DCDET
STANDBY
MOT_12V
+15V
-9V
SW5V
P_GND
P_GND
CD8V
PCONT PCONT
IDCDET


1
2
FAN
+15V
MUTE-D-AMP
T_GND
F_HOP
GND
IN OUT
1
2
3
1
2
3








43
44
45
46
47
48
49
50
42
41
40
39
38
37
36
35
34
33
32
31
302928
27
26
25
24
232221
2019
18
17
64 63 51
52
53
54
55
56
57
58
59
60
61
62
NC
STANDBY
FAN
MOT_12V
R2945
10K
D2946
B0ADCJ000020
C2945
16V47 C2944 100P R2944
4.7K
Q2943
R2942
5.6K R2941 10K C2941 16V33
C2947
6.3V100
R2947
27 W2573 0
R2946
56K
W2572
0
W2571
0
R2943
10K
Q2948
Q2949
R2949
47K
C2948
10V220
R2939
47K
R2948
100
NC
NC
DCDET
PCONT/EFP/CS
NC
NC
EE_DAT
EE_CLK
MUTE_A
MUTE_DA
MUTE_A
IDCDET
PCONT
MUTE_D_AMP
REG1
REG2
REG3
REG4
REG5
REG6
REG7
REG8
EE_CS/EFP/EPH
BLKCK STIDO SD ASP_DA ASP_CLK PLL_DA PLL_CLK
VREF+ SYS6V
P_GND
VREF+
CD7.5V
SW5V
R2894
47K W2535 0
W2518
0
+15V
IDCDET
D2813
B0ACCK000005
D2811
B0ADCJ000020
IDCDET
/NMI RMT
RMT
BLKCK SYNC
SYNC
ST/DO SD NC SW_LV-1 SW_LV-2 ASP_DA ASP_CLK 10DB_ATT PLL_DAT PLL_CLK
VSS
GND
NC
VCC VCC
NC
DECK1_H
REC
MTR
PLG2 PLG1
DECK1_H
REC(59)
MTR(58)
PLG2 PLG1
NC NC
MODE_1
HALF_1
MODE_1
HALF_1
STAND_BY
0
1
0
00053
C
ESSOR
W2557 0
R2846 4.7K
R2845 10K R2844 10K R2842 10K W2523 0 R2841 10K
R2820 100K R2819 100K R2818 100K R2817 100K R2830 100K R2831 100K R2832 100K R2833 100K
W2547 0
W2537
0
W2536
0
W2576
0
W2548 0
W2549
0
R2810 22K
R2802 100
C
2821
1
00P R2882
10M
W2552
0
R2883
330K C2883 18P R2886
1M R2881
220 C2803
1
C2853
0.1
R2851
47K
C2940
0.1
R2940
820K
D2803
B0ACCK000005 D2801
B0ACCK000005
C2802
50V3.3
Q2803
B1GBCFJJ0051
RESET (MICRO-P) SWITCH
Q2942
B1ACKD000006
FAN MOTOR ON/OFF SWITCH
Q2943
B1ABCF000176
FAN SUPPLY
CONTROL SWITCH
Q2948,Q2949
B1ABCF000176
DC DETECT SWITCH
C2882
18P
X2801
H0A327200115
X2802
H2B100500004
R2803 10K
VREF+
R2873
22K
R2871 22K
R2874 4.7K
C2871 330P C2874 330P
W2532 0
C2872 0.022
1
2
3
4
8
7
6
5
NC
VCC
EE_CS
EE_CLK
NC
IC2871 GND
EE.DAT
IC2871
E-EPROM IC
(NOT SUPPLIED)
R
2936
1K W2556
0
W2539 0
R2937
10K
CN2806
3
6

























+15V
HP_L
HP_GND
HP_R
DGND
SW5V
PA_IN_L
PA_IN_GND
PA_IN_R
MOT10V
SW_LED
VOL_LED
J_VOLA
J_VOl_B
FL_RST
FL_CS
FL_DOUT
FL_CLK
H_BASS_LED
KEY3
KEY2
KEY1
P-GND
RMT
VREF+
SYNC
PCONT
SYS6V
+15V
MOT_12V
CHG_PLR(88)
HP_L
HP_GND
HP_R
UP_GND
SW5V
PA_IN_L
PA_IN_GND
PA_IN_R
MOT_12V
SW_LED
VOL_LED
J_VOLA
J_VOl_B
FL_RESET
FL_CS
FL_DOUT
FL_CLK
H_BASS_LED
KEY3
KEY2
KEY1
P-GND
RMT
VREF+
SYNC
PCONT
SYS6V
123456789
1011121416171819202122232425262729 2830 1315
T
O
P
O
CI
R
(C
N
S
C
DI
A
T
O
TO
PANEL CIRCUIT (CN6601) ON
SCHEMATIC DIAGRAM-4
SA-AK343P MAIN CIRCUIT
4/4
C2854 10V220
C2940
0.1
W2575 0
SA-AK343P
9

3.2. (C) Panel Circuit
Note: With reference to page 65 (section 18.4) of original service manual for SA-AK340P/PC-S. Below is the updates.
W6502
01
2
3
4
5
6
7
8
9
12 13 14 15 16 17 18 19 20
25
26
27
28
29
30
31
32
33
363738394041424344
10 24
21
35
11 23
22
34
NC
NC
NC
NC
OSC
NC
DIN
CLK
STB
K1
K2
G10
G11
G12/S17
VEE
S16
S15
S14
S13
S12
S11
S10
VSS VDD S1 S2 S3 S4 S5 S6 S7 S8 S9
VSS
VDD
G1 G2 G3 G4 G5 G6 G7 G8 G9
C6636 100P
C6604 100P C6603 100P C6601 100P
R6605 82K
R6604 220
W6504
0W6503 0
W6505 0
R6603 220
R6601 470
IC6601
C0HBB0000057
FL DRIVER
C6623 50V22
FL6602
A2BD00000138
FL_DOUT
FL_CLK
FL_CS
GR1 GR2 GR3 GR4 GR5 GR6 GR7 GR8 GR9
GR1 GR2 GR3 GR4 GR5 GR6 GR7 GR8 GR9
GR10 GR11 GR12 GR12
GR10
GR11
GR12
SG16
SG15
SG14
SG13
SG12
SG11
SG10
SG16 SG15 SG14 SG13 SG12 SG11 SG10 SG9 SG8 SG7 SG6 SG5 SG4 SG3 SG2 SG1 R6631
SYS6V KEY3
47 47
R6632
D6635
B0BC5R600003
D6458
B3AAA0000803
S6301
CD
R6458
4.7K
R6399
10K
R6199
10K
H6555/W6555
C6635
50V2.2 GND2
FL2
-VP
FL1
SYS6V SYS6V
PCONT
SYNC
DGND
C6632
50V22
C6631
50V22
SG1 SG2 SG3 SG4 SG5 SG6 SG7 SG8 SG9
SYS6V
PCONT
SYNC
VREF+
RMT
P_GND
KEY1
KEY2
KEY3
FL_CLK
FL_DOUT
FL_CS
VJOG_B
VJOG_A
VOL_LED
SW_LED
MOT10V
PA_IN_R
PA_IN_GND W6501 0
PA_IN_L
SW5V
GND2
HP_R
HP_GND
HP_L
SYS6V
PCONT
SYNC
VREF+
RMT
P_GND
KEY1
KEY2
KEY3
H.BASS_LED
FL_CLK
FL_DOUT
FL_CS
FL_RST
VJOG_B
VJOG_A
VOL_LED
SW_LED
MOT10V
PA_IN_R
PA_IN_GND
PA_IN_L
SW_5V
D_GND
HP_R
HP_GND
HP_L
+15V
GND2
VREF+ HP_SW GND2 KEY3 KEY1
R6102
1K
GND2
SYNC
PCONT
SYS6V
12345678 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
1234568
79
S6101
POWER
S6102
SINGLE
DISC CHANGE
R6103
2.2K
S6103
OPEN
/CLOSE
R6104
1.8K
S6104
CD1 CD2 CD3 CD4 CD5
R6105
2.2K
S6105
R6106
2.7K
S6106
R6107
4.7K
S6107
R6108
6.8K
R6109
10K
R6110
22K
S6108
S6302
TAPE
S6303
STOP
S6304
REC
S6305
TUNER/
BAND
S6306
MUSIC P.
S6308
MULTI
DISC
CHANGE
R6302
1K
R6303
2.2K
R6304
1.8K
R6305
2.2K
R6306
2.7K
R6307
4.7K
R6308
6.8K
S6201 KEY2
VREF+
DECK2
OPEN
S6202
DISPLAY/
DEMO
S6203
DECK1/2
S6204
H.BASS
S6205
FF
S6206
REW
S6207
DECK1
OPEN
R6202
1K R6493
10K
VJOG_B
VJOG_A
PA_SW
GND2
GND2
GND2
RMT
VREF+
C6481
50V22
R6481
0
HP_GND
HP_R
HP_L
HP_SW
GND2
JK6551
PHONES
C6553
0.01
SW5V
MOT_10V
R6457
390
K6104
0
D6462
D6457,D6462
B3ACA0000302 D6457
QR6457
B1GBCFLL0037
LED DRIVE
C6551
0.01 C6552 0.01
R6492
47K
VR6491
EVEKE2F3524B
VOLUME JOG
PANEL CIRCUIT
SA-AK343P PANEL CIRCUIT
SCHEMATIC DIAGRAM - 4
R6491
47K
R6203
2.2K
R6204
1.8K
R6205
2.2K
R6206
2.7K
C6492
100P
C6491
100P
R6207
4.7K
R6208
39K
COM B
A
13
2
2
4
6
7
5
3
1
PA_GND
PA_IN_R
PA_IN_L
PA_SW
GND2
JK6751
CN6601
MUSIC PORT INPUT
C6753
0.01
R6751
3.3K
R6753
3.3K
C6752
0.01
R6754
1.5K
R6752
1.5K
C6751
0.01
2
4
6
7
5
3
1


3
2
1
Z6481
B3RAB0000025
REMOTE SENSOR
15
14
13
12
11
10
2
4
6
8
9
7
5
3
1
30
29
28
27
26
25
17
19
21
23
24
22
20
18
16
: +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE
TO
MAIN
CIRCUIT
(CN2806) ON
SCHEMATIC
DIAGRAM-3
TO
TRANSFORMER CIRCUIT (CN5951)
ON SCHEMATIC DIAGRAM-5
VOL_LED
+15V
SA-AK343P
10

3.3. (D) Transformer Circuit
Note: With reference to page 67 (section 18.5) of original service manual for SA-AK340P/PC-S. Below is the updates.
1
2
3
5
7
4
6
16
17
15
14
12
10
13
11
9
8
1
2
4
6
8
7
5
3
9
VCC+
VCC-
AC GND
AC_IN
SUB+B
GND
1
2
4
6
8
7
5
3
9
CN5950
CN5951
D5950-D5953
B0EAMM000038
D5954-D5957
B0EAKM000122
C5920
50V1000 C5940 50V1000
C5950
2200
FP5950
4A
RL5950
K6B1AEA00015
D5965
B0AACK000004
C5958
0.01
C5957
50V10
R5961
150 R5960 4.7K
D5960
B0BA02400030
D5959
B0EAKM000122
D5958
B0EAKM000122
C5956
50V47
C5955
50V22
R5951
3.3K
D5966
B0AACK000004 R5963
82
C5953
0.01 R5952
4.7K
C5952
10V47
R5953
150
D5963
B0AACK000004
D5964
B0BA6R800008
C5963
50V4.7
R5958
10K
R5957
10K
C5954
0.01
JK5950
FL2
-VP
FL1
SYS6V
SYS6V
PCONT
SYNC
D_GND
Q5952
T5951
RTP1H3E002
C5960
D5952 D5950
D5951
D5953
0.1
D5954
D5955
D5956
D5957
C5959
0.01
Z5950
ERZV10V511CS
L5950
ELF15N035AN
D5961
D5962
C5951
0.01
D5961,D5962
B0AACK000004,
4
3
2
1
SCHEMATIC DIAGRAM - 5
TRANSFORMER CIRCUIT
SA-AK343P TRANSFORMER CIRCUIT
: +B SIGNAL LINE : -B SIGNAL LINE
FP5940
7A
FP5920
7A
1
2
3
4
8
7
6
5
2
3
1
4
120V 60Hz
AC IN
F1
250V 4A
FC2
FC1
Q5953
B1AACF000064
PCONT SWITCH
Q5950
B1AAKD0000014
Q5951
2SB0621AHA
VOLTAGE REGULATOR
Q5952
B1GACFJJ0018
SYNCHRONISATION SWITCH
VOLTAGE REGULATOR
TO
POWER
CIRCUIT
(H5104/W5104)
ON SCHEMATIC
DIAGRAM-6
TO
PANEL
CIRCUIT
(H6555/W6555)
ON SCHEMATIC
DIAGRAM-4
T5950
G4CYAYY00046
C5962
10V220
C5961
10V220
SA-AK343P
11

3.4. (E) Power Circuit
Note: With reference to page 69~70 (section 18.6) of original service manual for SA-AK340P/PC-S. Below is the updates.
IC5301
C1BA00000407
2-CH DIGITAL AMP
+VCC1
+VCC2
2
1
TO
MAIN
CIRCUIT
(CN2809)
ON
SCHEMATIC
DIAGRAM-3
1
2
3
4
5
6
7
8
9
10
F_HOP
T_GND
MODE
+15V
HI_L
HI_R
LO_L
LO_R
A GND
A_GND
F_HOP
T_GND
MODE
HI_L
HI_R
LO_L
LO_R
A_GND
R5151
150K
R5147
2.2 R5123
4.7 Q5101
Q5103
Q5104
0
4
R5417
10K
R5518
10K
W5509
0
R5412
R5317 10K
220K
R5312
56K
R5313
150K
R5413
100K
C5155
1000P
C5105
10V220 R5111 100K
R5150
220K
D5126
B0ACCK000005
JK5102
-L_LOW
+L_LOW
-L_HIGH
+L_HIGH
2
4
3
1
+
-
-
+
JK5101
R_HIGH
R_LOW
R_HIGH
R_LOW
2
4
3
1
R5514
0
VCC
6A
6Y
5A
5Y
4A
4Y
1A
2A
1Y
2Y
3A
3Y
GND
C5205
0.1
R5206
1M
W5504
0
R5205 100K
R5207
6.8K
C5202
100P
C5203
100P
C5201
470P
R5203
10K
R5201
1K
R5204
100K
R5202
100K
R5210
270
C5210
220P
R5209
10
C5208
6.3V680P C5204 100P
X5201
H2A415300001
X5202
H2A375300003
Q5202
Q5201
C5701
F_HOP
AGND
AGND
100
IC5201
C0JBAB000011
LOGIC
114
2
3
4
5
13
12
11
10
69
8
7














23
22212019181716151413121110987654321
VSSA1 SGND VDDAT IN1- OSC PRBT VDDP1 IN1+ BOOT1 OUT1 VSSP1 STAB1 VSSP2 OUT2 BOOT2 VDDP2 VSSD VSSA1 SGND VDDA1 IN2- IN2+ MODE
23
22212019181716151413121110987654321
VSSA2 SGND VDDA2 IN1- OSC PRBT VDDP1 IN1+ BOOT1 OUT1 VSSP1 STAB1 VSSP2 OUT2 BOOT2 VDDP2 VSSD VSSA2 SGND VDDA2 IN2- IN2+ MODE
R5418
0
C5411
220P
C5410
0.1
R5141
10
C5413
0.015
C5419
0.015
C5421
0.1
R5140
10
C5417
0.1
R5406
22
C5416
0.1
C5414
0.1
C5415
0.1
C5412
0.1
C5409
0.1
C5408
C5424
0.68 C5427 0.68
L5604
G0B9R5K00001
L5603
G0B9R5K00001
R5405
22
C5432
220P C5430
220P
C5418
0.1
C5420
0.1
C5423
0.1
R5407 10
R5408 10
C5406
0.47
C5404
0.47
C5436
1000P
R5403
5.6K
W5506
0
R5404
5.6K
C5405 330P
C5401
0.47
R5401
5.6K
C5403
0.47
C5437
1000P
R5402
5.6K
C5402
330P
C5422
0.1
2
3
1
4
C5117
35V470P C5118
35V470P
HL_L LQ_L
C5431
220P C5433 220P
R5154
100
Q5154
2SB0709AHL
PCONT SWITCH
Q5153
Q5153
B1ABCF000176
MODE SWITCH
Q5173
B1ABCF000176
SWITCH
Q5173
R5153
100
R5419
0
C5311
220P
C5310
0.1
R5139
10 W5511 0
C5313
0.015
C5319
0.015
C5321
0.1
R5138
10
C5317
0.1
C5327
0.68
R5305
22 22
R5306
L5301
G0C220Z00002
C5316
0.1
C5314
0.1
C5312
0.1 C5315 0.1
C5309
0.1
C5308
0.1
C5324
0.68
C5333
220P C5331 220P
C5318
0.1
C5320
0.1 C5322 0.1
C5323
0.1
R5307 10
R5308 10
C5304
0.47
R5303
5.6K R5304 5.6K
C5306
0.47
C5336
1000P
C5305
330P
R5173
1K
C5301
0.47
R5301
5.6K
R5302
W5507
0 5.6K
C5303
0.47
C5337
1000P
C5302
330P
2
3
1
4
HL_R LQ_R AGND AGND AGND
MODE AGND
C5330
220P C5332 220P
C5121
50V47
R5146
5.6K
R5174
0
R5148
5.6K
0.1
C5123
35V470P C5124 35V470P
L5101
J0JKB0000037 L5102
J0JKB0000037
R5112
390K R5113 390K
POWER CIRCUIT
SCHEMATIC DIAGRAM - 6
: +B SIGNAL LINE : -B SIGNAL LINE
L5403
J0JKB0000037
L5402
J0JKB0000037
E5101
L5601
G0B9R5K00001
L5602
G0B9R5K00001
L5401
G0C220Z00002
W5505
0
: MAIN SIGNAL LINE
Q5103,Q5104
B1ABCF000176
FAN ON/OFF SWITCH
Q5201
B1ABCF000176
FREQUENCY HOPPING
SWITCH
Q5202
B1ADCF000063
FREQUENCY HOPPING
SWITCH
Q5111
B1BACG000023
+15V REGULATOR
R5149
1K
C5326
0
C5325
0.1
C5329
0
C5328
0.1
C5426
0
C5425
0.1
C5429
0
C5428
0.1
C5434 0.015
C5334 0.015
C5435 0.015
C5438
0.015
C5335 0.015
0.015
C5343
IC5401
C1BA00000407
2-CH DIGITAL AMP
1/2
SA-AK343P POWER CIRCUIT
W5555
0
SA-AK343P
12

B0EAKM000122
K5101
B0EAKM000122

B0EAKM000122
D5129
C5158
0.01 R5131 2.2K
R5144
12
C5111
6.3V100
R5130
150
+VCC1
+VCC2
-VCC1
-VCC2
ACIN
SUB+B
AC GND
AC GND
DGND
H5104/W510
4
TO
TRAN
S
CIRCU
I
(CN59
5
SCHE
M
DIAGR
A
2
4
6
8
9
7
5
3
1
C5112
25V10 D5108 B0BA5R700008
D5128
D5128,D5124,D5123
D5124 D5123
R5135
2.2
R5136
2.2
R5137
2.2
R5133
10K
C5159
0.01 Q5113
R5134
1.2K
Q5114
R5132
330 C5113
50V33 D5109
B0BA01100004
D5125
B0AACK000004
CN5102
TO
MAIN
CIRCUIT
(CN2809)
ON
SCHEMATIC
DIAGRAM-3
1
2
3
4
5
6
7
8
9
10
11
12
F_HOP
T_GND
MODE
+15V
HI_L
HI_R
LO_L
LO_R
FAN
A GND
A_GND
F_HOP
T_GND
MODE
HI_L
HI_R
LO_L
LO_R
A_GND
R5151
150K
R5147
2.2 R5123
4.7
E5102
K4CZ01000027
C5101
35V1000P
R5126
1K
R5127
470
C5110
25V100
C5109
25V100
D5152
B0BA01900005
R5152
0
Q5101
Q5103
Q5104
Q5110
D5107
B0BA01500003
C5157
0.01
C5151
100P
D5101
B0BA01100004
D5102
B0BA02600018
R5101
10K R5114
1.8
C5114
0.1 C5102 100V10
R5103
10K
C5103
100V10
C5106
C5186
W5501

0
0.1
C5187
0.1
C5107
0.1
0.1
R5417
10K
R5518
10K
W5509
0
C5171
50V1000
50V1000
C5172
D5122
B0EAKM000122
B0EAKM000122
D5121
C5104
35V1000P C5153
100P
Q5102
Q5108
D5105
B0BA02400029
D5104
B0BA01100004
D5103
B0BA3R900006
R5110
2.2K
R5109
1K
R5108
47
R5107
560 C5152
0.1
R5105
10K
C5115
0.1
R5106
22K
R5412
R5317 10K
220K
R5312
56K
R5313
150K
R5413
100K
C5155
1000P
C5105
10V220 R5111 100K
R5150
220K
D5126
B0ACCK000005
JK5102
-L_LOW
+L_LOW
-L_HIGH
+L_HIGH
2
4
3
1
+
-
-
+
JK5101
R_HIGH
R_LOW
R_HIGH
R_LOW
2
4
3
1
R5514
0
VCC
6A
6Y
5A
5Y
4A
4Y
1A
2A
1Y
2Y
3A
3Y
GND
C5205
0.1
R5206
1M
W5504
0
R5205 100K
R5207
6.8K
C5202
100P
C5203
100P
C5201
470P
R5203
10K
R5201
1K
R5204
100K
R5202
100K
R5210
270
C5210
220P
R5209
10
C5208
6.3V680P C5204 100P
X5201
H2A415300001
X5202
H2A375300003
Q5202
Q5201
C5701
F_HOP
AGND
AGND
100
IC5201
C0JBAB000011
LOGIC
114
2
3
4
5
13
12
11
10
69
8
7














R5406
22
C5424
0.68 C5427 0.68
L5604
G0B9R5K00001
L5603
G0B9R5K00001
R5405
22
C5432
220P C5430
220P
R5407 10
R5408 10
C5406
0.47
C5404
0.47
C5436
1000P
R5403
5.6K
W5506
0
R5404
5.6K
C5405 330P
C5401
0.47
R5401
5.6K
C5403
0.47
C5437
1000P
R5402
5.6K
C5402
330P
2
3
1
4
C5117
35V470P C5118
35V470P
HL_L LQ_L
C5431
220P C5433 220P
C5327
0.68
R5305
22 22
R5306
L5301
G0C220Z00002
C5324
0.68
C5333
220P C5331 220P
R5307 10
R5308 10
C5304
0.47
R5303
5.6K R5304 5.6K
C5306
0.47
C5336
1000P
C5305
330P
C5301
0.47
R5301
5.6K
R5302
W5507
0 5.6K
C5303
0.47
C5337
1000P
C5302
330P
2
3
1
4
HL_R LQ_R AGND AGND AGND
MO
D
AG
N
C5330
220P C5332 220P
C5123
35V470P C5124 35V470P
L5101
J0JKB0000037 L5102
J0JKB0000037
R5112
390K R5113 390K
CN5103
TO
MAIN
CIRCUIT
(CN2808)
ON
SCHEMATIC
DIAGRAM-3
1
2
3
4
5
6
7
8
9
10
11
12
PGND
FLGND
DGND
PCONT
CD8V
NC
MF_HOP
12V
15V
-3V
SW5V
DC_DET
L5403
J0JKB0000037
L5402
J0JKB0000037
E5103
K4CZ01000027
E5101
K4CZ01000027
L5601
G0B9R5K00001
L5602
G0B9R5K00001
L5401
G0C220Z00002
W5505
0
W5508
0
Q5101,Q5102
B1DEGM000026
CURRENT CONTROL SWITCH
Q5108
B1ABCF000176
SWITCH
Q5110
B1AACF000064
26V REGULATOR
Q5113
B1GDCFNA0001
CURRENT LIMITER SWITCH
Q5103,Q5104
B1ABCF000176
FAN ON/OFF SWITCH
Q5201
B1ABCF000176
FREQUENCY HOPPING
SWITCH
Q5202
B1ADCF000063
FREQUENCY HOPPING
SWITCH
Q5114
B1ABCF000176
11V REGULATOR
Q5112
B1BCCG000002
CURRENT STABLISER
Q5111
B1BACG000023
+15V REGULATOR
Q5115
B1AAKD000014
5.7 REGULATOR
Q5109
2SB0709AHL
VOLTAGE REGULATOR
C5326
0
C5325
0.1
C5329
0
C5328
0.1
C5426
0
C5425
0.1
C5429
0
C5428
0.1
C5434 0.015
C5334 0.015
C5435 0.015
C5438
0.015
C5335 0.015
0.015
C5343
2/2
SA-AK343P POWER CIRCUIT
W5555
0
SA-AK343P
13

SA-AK343P
14

4 Printed Circuit Board (Updating)
SA-AK343P
15

4.1. (B) Main P.C.B.
Note: With reference to page 75 (section 19.2) of original service manual for SA-AK340P/PC-S. Below is the updates.
MAIN P.C.B (REPX0516A)
B
ABCDEFG
1
2
3
4
5
6
7
8
9
HI J KL MN P
PbF
E
C
B
N
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
CA
A
CA
A
C
CA
4
3
2
1
123
-1-2
64
123
-1-2
64
12
4
1
5
8
34 5
123
4
567
8
1
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
321
124
12 13
321
678
1211109 8 7654 321
29 28
15
14
1
56
43
42
11 10
20 1
321
12 11 10 9 8 7 6 5
30 31
50
1
100
51
81 80
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
8
5
1
4
4321
1
2
3
4
5
6
7
8
9
10
11
12
14
13
1
23
4
5
67
8
9
10
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
5
10 15
20
5
15
3
2
6
7
5
10
20
25
5
10
15
20
25 35
40
45
55
60
65
70
75
35
40
45
50
55
30
85
90
95
IF
SC
0460A-1
0460A-1
Q2942
R2944
R2941
C2941
C2940
C2948
R2940
R2942
R2943
R2939
R2949
B
C
E
Q2948
R2948
R2946
C2944
R2945
C2945
Q2943
W2571
W2572
CA
ACA
D2946
K2004...PC
JK2601
W2410
W2413
W2414
W2411
W2412
L2601
W2417
A
CA
A
L2602
W2418
W2446
K2351
W2249
B
C
E
B
C
E
C2511
C2671
R2511 W2333
W2235
W2241
W2398
W2250
W2419
C2625
TUNER PACK
REP1999B
W2448
W2425
C2602
W2415
W2427 W2428
W2429
W2430
C2627
W2351
W2305
R2947
C2947
CN2810
Q2949
W2573
CN2801
A
CCA
CF2602
R2619
C2636
C2614
W2431
W2432
W2307
W2192
W2308
W2226
R2132
R2924
R2923
R2232
R2231
C2231
C2131
R2131
W2306
W2563
R2931 R2930 R2929 R2919 R2918 R2928
C2901
W2304
D2901
W2303
Q2606
R2631
C2910
W2444
Z2602
R2626
R2625
R2644
R2618
C2609
R2612
D2602
C2608 C2607
C2603
R2610
C2604
C2421
R2603 R2604
C2647
C2629
W2426
W2424
Q2601
W2416
R2606
R2607
R2601
C2678
R2676
C2674
C2673
D2677 R2512
Q2511
R2675
R2671
R2672
K2333
R2613
C2610
R2614
R2611
W2420
R2677
W2200
W2202
Q2341
W2183
R2311
C2701
C2702
C2415
C2706
C2342
R2355
Q2311
W2206
W2189
W2205
W2182
W2184
W2186
W2242
W2530 C2444
R2457
R2347 R2346
R2357
C2344
R2345
R2445
R2342
R2344
R2447 R2446
Q2441
R2341
R2352
R2343
R2354
R2442
R2444
R2443 R2441
C2441
W2204
W2143
W2531
C2245
R2351
R2353
R2452R2454
R2451
R2453
W2511 R2146 R2701
C2312
R2145
Q2142
R2704
IC2804
R2703
C2313
R2702
C2705
R2705
R2315
C2314
C2315
W2512
Q2242
C2341
C2413C2414
Q2317
R2356
C2343
R2321
W2185
R2317
R2316 R2335
C2323
R2431
R2323
R2433
R2331
C2331
R2313
W2513
R2248 R2247
R2706
R2415
D2241
R2246
R2245
C2412
W2514
R2314
W2144
W2145
W2142
W2146
W2148 C2423
R2426
R2328 R2428
R2333
R2423
R2421
R2416
R2429 C2421
W2508
R2318
R2329
R2417
R2418
C2443 R2456
Q2417
W2149
W2147
C2321
R2620
W2434
C2615
C2606 C2626
W2433
C2616
C2631
R2602
C2639
IC2601
C2649
C2617 C2618
C2637
C2648
W2423
C2623
W2422
W2435 W2436
W2437
W2438
W2439
W2440
D2601
R2628
C2630
W2441
R2615
C2611
R2616
R2651
C2601
C2632
W2447
C2612
CF2601
C2624
R2605
R2627
R2632
R2629
R2621
R2624
X2602
R2674
W2245
W2246
W2247
W2248
W2199
W2244
R2673
W2187
W2243
W2188
W2402
W2190
W2195
W2194
W2197
W2198
R2585
C2585
R2455
C2588
R2414
R2412 R2413
C2442
B
C
E
W2191 W2352
W2193
W2399
R2411 C2411
W2196
C2311
R2301
R2312
C2302
C2301
C2172
C2171
R2172 R2173
C2173
C2174
C2175
C2183
C2181
C2431
W2319
C2182
R2182
C2101
C2433
R2434
R2435
W2510
C2333 R2334
R2326
C2325
W2136
W2137
K2302
W2130
W2140
W2141
C2425
C2943
CN2809
W2132W2131
R2111
R2112
R2104
C2113
R2102
C2124
W2178
W2179
C2224
C2122
C2112
C2114
C2212
C2214
C2222 C2132
C2232
R2183
R2181
C2252
C2152
IC2803
C2401
C2402
R2401
C2275
C2195
C2194
R2195R2196
R2194
C2193
R2271
C2272
C2271
R2273
C2274
C2273 R2587
C2633 C2634
X2603
IC2602
R2638
R2617
R2633
R2634
R2635
R2636
R2637
W2442
C2613
R2652
R2630
W2443
C2622
W2919
R2622
C2621
C2641
C2642
C2644
R2646
R2642
C2643
R2645
R2641
C2638
R2643
R2623
C2620
W2445
W2565
W2567 W2568 R2925
Q2907
B
C
E
Q2906
W2291
W2290
W2293
W2288
K2904
W2297
W2296
W2292
W2294
W2295
W2570
W2569
J2903
R2920
R2908
R2907
Q2901
R2902
R2901
Q2902
C2903
W2566
R2910
R2909
C2904
W2272
W2555
W2556
W2558
R2862 R2854
R2855
C2821
R2861
R2860
R2858
R2857
R2859
R2856
R2867
R2868
W2281
W2280
X2801
W2224
W2274
W2227
W2225
R2883
R2882
W2544
W2545
W2552
C2882
C2883
R2886
R2881
X2802
R2801 W2543
W2223
W2540
R2810
W2240
W2238 J2801
C2853
W2237
R2851
W2542
W2526
W2236
W2239
W2181
W2162
W2163
W2164
W2165
R2193
C2192
R2283
C2283
C2281 C2282
R2281 R2282
C2191
C2582
R2510
D2191
C2581
C2261
C2161
W2400
C2154
C2234
C2134
W2155
C2254
R2251
R2151
W2120
C2213
R2202
R2212
R2211
R2122
R2121
C2121
R2221
R2222
C2221
W2133
W2135
W2116
W2117
W2118
W2520
W2503
CN2808
W2127
W2119
W2121
W2122
W2124
W2125
W2506
D2813
R2894
R2103
C2201 R2203
R2204
W2123
W2126
W2401
R2503 C2501
R2509
C2503 R2501
Q2501
R2502
R2504
R2505
C2509
D2503
W2170
C2507
R2507
R2508
W2172
W2166
W2167 W2168
W2169
W2171
W2231
W2173
D2801
D2950
C2802
R2950
W2550
W2222
W2221
W2229
R2803 W2546
R2584
W2230
R2802
R2586
W2232
W2228 W2548
W2547
W2549
R2833
R2832
R2831
R2817
R2830
W2233
W2273
IC2801
W2106
R2846
R2849
R2843
R2866
W2276
W2275
R2848
R2847
W2277
W2300
W2299
W2289
R2853
R2865 R2864
R2863 R2912
R2922 R2914
R2916
R2921R2852
W2115
R2927
W2279
W2560
W2561
Q2937
W2134
C2906
W2559
W2286 W2298 W2301
CN2805
W2160 W2302
D2936 R2937
R2936
Q2936
W2282
W2107
W2278
W2284
W2261
W2260
W2259
W2262
W2258
W2266
W2256
W2557
W2553
R2845
W2554
R2844
R2842
R2841
W2576
W2253
W2537
W2536
W2209
W2390
W2255
W2257
W2263
W2252
W2523
W2534
W2525
R2820
R2819
R2818
W2535
C2871
W2397
W2218
W2532 C2872
IC2871
R2874
R2873 R2871
Q2951
C2874
Q2950
R2965
R2951
R2966
R2952
Q2952
B
C
E
W2208
W2267
W2391
W2213
W2212
W2211
W2392
W2207
W2517
W2174 W2216
W2159
W2153
W2151
W2156
W2154
W2150
W2152
W2102
W2110
W2108
W2103
W2109
W2575
W2518
W2105
W2104
W2129
W2128
W2101
Q2980
Q2978
W2111
D2811
C2753
W2501 W2112
W2114
CN2803
C2976
W2113
W2161
R2954
R2953
C2959
C2957
R2956
R2957
R2959
Q2959 Q2957
Q2958
Q2960
W2157
W2215
W2217
J2951
W2210
R2955
CN2951
W2219
W2220
W2539
W2264
W2265
CN2806
W2268
W2269 W2270
C2803
W2877
B
C
E
Q2803
D2803
W2283
W2285
Q2411
C2583
D2583 C2584
W2175
W2234
W2180
W2177
W2176
BC
E
BC
E
B
C
E
B
C
E
BC
E
B
C
E
BC
E
B
C
E
BC
E
B
C
E
BC
E
BC
E
BC
E
BC
E
BC
E
R2960
R2958
AM L P
ANTENNA
FM L P
ANTENNA
K2002...AK340
AMT
GND GND
V+
B+
NC
R2149
R2249
C2854
C2703
C2704
SA-AK343P
16

4.2. (C) Panel P.C.B.
Note: With reference to page 76 (section 19.3) of original service manual for SA-AK340P/PC-S. Below is the updates.
ABCDEFG
1
2
3
4
5
6
7
8
9
HI J KL MN P
PANEL P.C.B (REPX0517A)
C
PbF
B
C
E
1
3
5
4
2
6
7
1
2
3
4
5
6
7
8
9
15
3
2
1
10 15 20 25
32 1
33
23
22
12
11
1
34
44
30 35 40 44
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
3
5
46
27
5
10
15
20
25
40
30
35
0461A-1
0461A-1
S6103
R6103
S6102
R6104
S6104
R6105
S6105
R6106
S6106
R6107
S6107
R6108
S6108
R6109
R6110
J6553
C6552
C6551 C6553
J6552
JK6551
H6555/
W6555
W6071
S6201
R6202
W6062
S6302
R6303
R6302
W6068 W6067
W6069
J6551
W6070
W6064
S6301
W6066
W6063
R6632
R6631
J6631
D6635
C6635
C6623
W6055
C6632
C6631
C6636
L6621
Z6481
R6481
W6057
W6060
W6058
W6056
W6061
R6399
R6304
W6101
W6100
S6205
FF
S6303
ST P
R6203
S6203
DECK 1/2
R6204
W6054
W6085
W6059
W6051 W6050
W6048
C6481
W6402
FL6602
R6605
W6044 W6045
W6046 W6047
D6462
VR6491
D6457
C6492
C6491
W6052
R6492
K6104
QR6457
K6051...P K6002...AK340
R6205
S6204
H.BASS
S6202
DISPLAY/
DEM
R6206
W6081 W6080
R6491
W6040
R6457
W6049
W6043
W6038
W6503
W6504
W6505
IC6601
R6458
R6604
R6603
R6601
C6604
C6603
C6601
R6493
W6004
W6082
W6003
W6002
W6017
W6014
W6012
R6199
W6032
CN6601
W6018
W6030
W6034
W6033
W6011 W6010 W6009 W6016
W6039
W6037
W6035
W6036
R6307
R6306
R6305
W6041
S6206
REW
S6304
REC
R6207
W6102
W6025
S6306
MUSIC P.
W6020
S6305
TUNER/
BAND
W6024
D6458
R6102
S6101
P WER
W6007
W6006 W6005
W6015
W6501
W6008
W6019
W6022
C6753
J6753
JK6751
W6027
W6026
J6752
C6752
J6751
R6208
S6207
DECK 1
PEN
C6751 W6028
W6502
R6308
W6013
W6001
S6308
MULTI DISC
CHANGE
PEN/
CL SE
SINGLE
DISC
CHANGE
CD1
CD2
CD3
CD4
CD5
DECK 2
PEN
CD
TAPE
PH NES MUSIC P RT
R6752
R6751
R6754
R6753
SENS R V LUME
SA-AK343P
17

4.3. (E) Power P.C.B.
Note: With reference to page 78 (section 19.5) of original service manual for SA-AK340P/PC-S. Below is the updates.
ABCDEFG
1
2
3
4
5
6
7
8
9
HI J KL MN P
P WER P.C.B (REPX0533A)
E
B
C
EB
C
E
B
C
E
B
C
E
B
C
E
B
C
EB
C
E
B
C
E
C
EB
B
C
E
B
C
E
987654321
71
814
3
2
1
123456789101112
1
2
23
22
12
34
123 456789101112
3
2
1
3
4
1
2
22
23
2
1
3
2
1
1
3
2
4
1
2
3
4
5
6
B
C
E
B
C
EB
C
EG
D
SB
C
E
G
D
S
10
515
20
5
10
5
10
20
15
0491A
0491A
C5114
C5115
H5104/W5104
K5511
K5512
Q5202
Q5201
C5202C5203
W5121
W5115
W5116
R5207
C5204
X5202
X5201
R5202
C5201
W5504 R5204
R5206 R5205
R5203
R5201
R5210
C5210
C5701
C5208
W5117
IC5201
W5118
W5109
C5205
R5514
R5209
R5419
W5 111
C5121
W5112
W5113
R5148
R5154
R5146
R5153
R5149
R5174 W5114
W5107
Q5154
Q5153
Q5173
R5173
K5104
W5108
W5101
W5110
W5105
W5106
W5108
W5107
E5103
W5501
CN5103
K5109
W5129
Q5103
K5101
D5129
J5104
W5124
W5106
C5433
C5422
R5408
C5423
C5419
C5432
C5430
C5416
R5407
C5413
C5431
C5408
C5409
C5402
C5 111
R5130
Q5115
R5144
C5158
W5143
W5122
W5200
W5119
W5120
C5103
D5122
W5145
W5205 W5144
W5146
W5147
W5142
Q5112
C5159
R5133
D5128
D5127
D5124
R5131
D5123
R5132
D5125
D5108
C5112
R5141
R5140
L5403
C5411
C5117
C5414 C5412
C5410
IC5401
W5137
W5138
W5135
W5136
W5140
C5415
C5417
W5139
W5141
C5418
C5421
C5420
C5118
C5405
R5418
W5505
R5112
R5113
R5303
C5304
W5123
W5127
W5126
R5152
C5303
C5301
R5301
Q5104
C5105
C5155
R5 111
W5131 W5132
W5130
R5302
W5151
J5103
W5148
C5403R5402
C5306 R5304
W5507
C5437
W5150
C5337
W5149
C5401 R5401
R5404
W5506
C5406
C5404
R5403
W5133
L5401
W5156
L5402
R5135
R5136
R5137
D5109
C5113
R5134
W5508
Q5111
Q5114
Q5113
R5147
D5152
J5122
W5206 W5207
W5157
W5177
C5322
C5323
C5305
D5107
R5123
J5125
C5157R5126
R5127
C5110
C5109
L5101
C5318
C5123
W5169
W5163
W5152
W5153
W5154
W5155
W5175
W5555
R5518
W5161
CN5102
W5162
C5336
C5436
E5102
D5126
R5413
R5150
W5509
R5412
R5312 R5313
R5317
R5417
R5406
W5160
W5158
W5159
R5405
W5164
C5424
R5306 R5305
C5325
C5328 C5329
L5301
W5167
W5168
C5320
C5312
W5166
C5317
C5315
C5314
C5311
W5171
W5172
W5173
W5174
C5124
R5138
R5139
W5511
C5321
IC5301
C5310
C5302
C5319
C5332
R5308
C5333
C5316
R5307
C5331
C5313
C5330
C5309
C5308
W5128
W5176
W5208
W5195
W5196
R5103
C5102
C5171
D5121
C5172
R5107
Q5108
W5197
D5101
C5107
C5106
C5152
R5108
R5106
Q5101 Q5110 Q5102
W5193
R5105
D5104
D5105
D5103
R5114
D5102
W5194
R5101
C5151
C5101
R5151
C5153
R5110
R5109
W5189
C5104
E5101
L5102
W5192
C5324
C5326
C5327
JK5101
JK5102
W5186
C5427
W5165
C5425
C5426
C5428
C5429
W5180
Q5109
PbF
RIGHT
SPEAKER
LEFT
SPEAKER
L5601L5602
L5603
L5604
L5605
C5186
C5187
SA-AK343P
18

5 Exploded Views (Updating)
Note: With reference to page 85~88 (section 21) of original service manual for SA-AK340P/PC-S. Below are the updates.
SA-AK343P
19

5.1. Cabinet Parts Location
SA-AK343P
20