Panasonic SA-AKX74PH User manual

© Panasonic Corporation 2012. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
PSG1207012SE
A6
CD Stereo System
Model No. SA-AKX74PH
SA-AKX74PN
SA-AKX94PH
SA-AKX74PR
SA-AKX94PR
Product Color: (K)...Black Type
Subject : Updates on Block Diagram, Schematic Diagram, Printed Circuit Board,
Exploded View & Parts List.
TABLE OF CONTENTS PAGE PAGE
1Notes----------------------------------------------------------------- 2
2 Block Diagram (Updates) -------------------------------------- 3
2.1. Power Supply (SA-AKX74PH/PN-K) ----------------- 3
2.2. Power Supply (SA-AKX94PH-K) ---------------------- 4
3 Schematic Diagram (Updates) ------------------------------- 5
3.1. Main(MICON) Circuit (SA-AKX74PH/PN-K)-------- 5
3.2. Panel Circuit (SA-AKX74PH/PN-K)------------------- 8
3.3. CD Interface, Mic and Voltage Selector Circuit
(SA-AKX74PH/PN-K)------------------------------------- 9
3.4. D-Amp Circuit (SA-AKX74PH/PN-K) ----------------10
3.5. SMPS Circuit (SA-AKX74PH/PN-K)-----------------11
3.6. CD Interface, Mic and Voltage Selector Circuit
(SA-AKX94PH-K)-----------------------------------------13
3.7. SMPS Circuit (SA-AKX94PH-K)----------------------14
4 Printed Circuit Board (Updates)----------------------------16
4.1. Panel, Remote Sensor, USB and Music Port
P.C.B. (SA-AKX74PH/PN-K)---------------------------16
4.2. SMPS and D-Amp P.C.B. (SA-AKX74PH/PN-
K)-------------------------------------------------------------17
5 Exploded View (Updates)-------------------------------------18
5.1. Packaging (SA-AKX74PH/PN-K) -------------------- 18
5.2. Packaging (SA-AKX94PH-K) ------------------------- 19
6 Electrical & Mechanical Replacement Parts List
(Updates) ----------------------------------------------------------21
Please file and use this supplement manual together with the service manual for
Model No. SA-AKX74PH/PN-K Order No. PSG1203050CE
Model No. SA-AKX94PH-K Order No. PSG1203051CE
Model No. SA-AKX74/94PR-K Order No. PSG1204034AE

2
1Notes
Background:
• For improvement of quality and performance.
This supplement includes revised contents to the original service manual for below sections:-
1. Block Diagram
2. Schematic Diagram.
3. Printed Circuit Board.
4. Exploded View.
5. Electrical & Mechanical Replacement Parts List.

3
2 Block Diagram (Updates)
2.1. Power Supply (SA-AKX74PH/PN-K)
With reference to original service manual (section 14.4) on pages 77.
SA-AKX74PH/PN POWER SUPPLY (1/2) BLOCK DIAGRAM
TO POWER SUPPLY
BLOCK (2/2)
1
4
3
2
NOTE: “ * ” REF IS FOR INDICATION ONLY
AC INLET
P5701
F1
DZ5701
5,65,6 CN2007CN5802
77 CN2007CN5802
+35V SENSE +35V SENSE
+35V SENSE
88 CN2007CN5802
SYS3.3V SYS3.3V
PW +16V
PW +5V
DC DET PWR
SYS3.3V
SWITCHING MODE POWER
SUPPLY CONTROL
MIP2F20MSSCF
IC5799
SHUNT
REGULATOR
C0DAZYY00039
IC5801
3
4
2
1
SUB
TRANSFORMER
T5751
MAIN
TRANSFORMER
T5701
TH5702
TH5860
TH5861
D5701
D5896
D5798
D5793
D5702
D5730
D5795
D5725
D5731
D5729
D5726
D5802
D5803
D5804
-35V SENSE
D5801
D5724,D5727
QR5802
DC DETECT
Q5860,Q5861,Q5862
TRANSFORMER
TEMPERATURE
DETECT
FEEDBACK
CIRCUIT
SYNC
Q5898
SYNC SWITCH
QR5810
PCONT
SWITCH
QR5801
SWITCH
Q2035
AM
BEATPROOF
CIRCUIT
Q5721
SWITCH
Q5722
CURRENT
LIMITING
SWITCH
PC5799
FEEDBACK
3
4
2
1
PC5701
FEEDBACK
1
2
4
3
PC5702
SYNC
4
3
1
2
PC5720
FEEDBACK
SWITCHING
REGULATOR
C5HACYY00004...PN
C5HACYY00005...PH
IC5701
VCC
OCP/BD
FB
D
35V
SYNC SYNC
DCDET2 DC DET PWR
+35V SENSE
-35V SENSE
DC16V
PCONT PCONT
SYNC
1,21,2 CN2007CN5802 -35V SENSE
-35V SENSE
5,65,6 ZJ5000*ZJ2001*
+35V SENSE +35V SENSE
-35V SENSE 1,21,2 ZJ5000*ZJ2001* -35V SENSE
TEMP DET 99 CN2007CN5802 TEMP DET
-35V
TEMP DET TEMP DET
IC5899
SHUNT
REGULATOR
C0DAZYY00039
C0DAEYY00040
DC DET PWR
PCONT
SMPS BP
SMPS BP
FROM/TO
SERVO & SYSTEM CONTROL
FROM/TO
SERVO & SYSTEM CONTROL
1414 CN2007CN5802
PCONT
1010 CN2007CN5802
DCDET2
1313 CN2007CN5802
BLKBLK TL7*TL5*
REDRED TL8*TL6*
DC16V
VOLT ADJ
S5701
L5701
3
2
4
1
FOR PH
FOR PH
FOR PH FOR PN
SMPS P.C.B.
VOLTAGE SELECTOR P.C.B.
MAIN P.C.B.
4
7
6
1
5
4
1
2
7
8
6
5
4
1
2
7
8
6
14
9
15
12
11
10
14
9
15
12
11
10
5
4
1
2
7
8
6
14
9
15
12
11
10
FB 2
VDD 1
D5
VCC 4
CL 3
5
6
3
2
1
7
8
10
KC RR
Q5720
VOLTAGE
REGULATOR
D5721
D5722
D5728
D5723
SECONDARYPRIMARY
ECO CTL
Q5899,QR5811,QR5812
ECO CTLECO CTL ECO CTL
1111 CN2007CN5802
+5V+5V 82 CN2011CN5902
5,65,6 ZJ5901*CN5801 +35V SENSE
1,21,2 ZJ5901*CN5801 -35V SENSE
35V
+35V SENSE
-35V SENSE -35V
+5V 5V
D-AMP P.C.B.
CHANGE
(IC5899)

4
2.2. Power Supply (SA-AKX94PH-K)
With reference to original service manual (section 14.4) on pages 81.
SA-AKX94PH POWER SUPPLY (1/2) BLOCK DIAGRAM
TO POWER SUPPLY
BLOCK (2/2)
1
3
2
NOTE: “ * ” REF IS FOR INDICATION ONLY
AC INLET
P5701
F1
DZ5701
5,65,6 CN2007CN5802
77 CN2007CN5802
+35V SENSE +35V SENSE
5,65,6 ZJ5500*CN5801
+35V SENSE +35V SENSE
88 CN2007CN5802
SYS3.3V SYS3.3V
PW +16V
DC DET PWR
SYS3.3V
SWITCHING MODE POWER
SUPPLY CONTROL
MIP2F20MSSCF
IC5799
SHUNT
REGULATOR
C0DAZYY00039
IC5801
3
4
2
1
SUB
TRANSFORMER
T5751
MAIN
TRANSFORMER
T5701
TH5860
TH5861
D5701
D5896
D5798
D5793
D5702
D5730
D5795
D5725
D5731
D5729
D5726
D5802
D5803
D5804
-35V SENSE
D5801
D5724,D5727
QR5802
DC DETECT
Q5860,Q5861,Q5862
TRANSFORMER
TEMPERATURE
DETECT
FEEDBACK
CIRCUIT
SYNC
Q5898
SYNC SWITCH
Q5700
SWITCH
QR5810
PCONT
SWITCH
QR5801
SWITCH
Q2035
AM
BEATPROOF
CIRCUIT
Q5721
SWITCH
Q5722
CURRENT
LIMITING
SWITCH
PC5799
FEEDBACK
3
4
2
1
PC5701
FEEDBACK
1
2
4
3
PC5702
SYNC
4
3
1
2
PC5720
FEEDBACK
SWITCHING
REGULATOR
C1ZBZ0004646
IC5701
VCC
OCP/BD
FB
DRIVE
35V
SYNC SYNC
DCDET2 DC DET PWR
+35V SENSE
-35V SENSE
DC16V
PCONT PCONT
SYNC
1,21,2 CN2007CN5802 -35V SENSE
-35V SENSE 1,21,2 ZJ5500*CN5801 -35V SENSE
5,65,6 ZJ5000*ZJ2001*
+35V SENSE +35V SENSE
-35V SENSE 1,21,2 ZJ5000*ZJ2001* -35V SENSE
TEMP DET 99 CN2007CN5802 TEMP DET
-35V
35V
+35V SENSE
-35V SENSE -35V
TEMP DET TEMP DET
IC5899
SHUNT
REGULATOR
C0DAZYY00039
C0DAEYY00040
DC DET PWR
PCONT
SMPS BP
SMPS BP
FROM/TO
SERVO & SYSTEM CONTROL
FROM
SERVO & SYSTEM CONTROL
1414 CN2007CN5802
PCONT
1010 CN2007CN5802
DCDET2
1313 CN2007CN5802
BLKBLK TL7*TL5*
REDRED TL8*TL6*
DC16V
VOLT ADJ
S5701
L5701
3
2
4
1
SMPS P.C.B.
VOLTAGE SELECTOR P.C.B.
MAIN P.C.B.
2
5
4
8
4
5
1
2
8
7
6
16
11
17
14
13
12
FB 2
VDD 1
D5
VCC 4
CL 3
5
6
3
2
1
7
8
10
KC RR
Q5720
VOLTAGE
REGULATOR
D5721
D5722
D5728
D5723
SECONDARYPRIMARY
D-AMP P.C.B.
CHANGE
(IC5899)

5
3 Schematic Diagram (Updates)
3.1. Main(MICON) Circuit (SA-AKX74PH/PN-K)
With reference to original service manual (section 16.3) on pages 87, 91 & 96.
A
12 3 4 5 6 7 8 9 10 11 12 13 14
C
D
B
E
G
H
F
BMAIN(MICON) CIRCUIT
SCHEMATIC DIAGRAM - 5
TO MAIN(MICON)
CIRCUIT (2/10)
TO MAIN(MICON)
CIRCUIT (6/10)
P1
P1
1
MI: MAIN(MICON): SCHEMATIC DIAGRAM - 5 ~ 14
DA: MAIN(D-AMP): SCHEMATIC DIAGRAM - 15 ~ 16
: AUX/TUNER/MUSIC PORT/MIC AUDIO INPUT SIGNAL LINE
: CD AUDIO INPUT SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
: +B SIGNAL LINE
: -B SIGNAL LINE : USB SIGNAL LINE
: AM SIGNAL LINE
: FM SIGNAL LINE
SA-AKX74PH/PN MAIN(MICON) CIRCUIT
3/10 5/10
8/10
2/10
7/10
4/10
9/10 10/10
1/10
6/10
2
R2056 4.7K
C2072 3300P
C2073 C2074
R2051 1K R2162 0
C2067
1
C2070 0.47
0.01
C2068
3300P
1
0.47C2071
R2054
0
R2057 4.7K R2052 1K R2193 0
R2060 6.8K
R2059 4.7K C2083 0.022 3300P
C2082
C2077 C2079 R2058 4.7K
C2076 C2078
C2153
10
C2081 C2080
0.01 0.018 0.47
1K
R2372
C2192
1
R2373
150K B1ABCF000231
Q2001
R2064
15K
B1ABCF000176
Q2040
R2061
6.8K
R2355
12K
C2084 C2088
0.082 0.082
150KR2062
R2063
15K
10K
50V3.3C2086
R2356
1K
B1ABCF000176
Q2037
C2087
4.7
C2085 50V3.3
C2075 0.01
0.018 0.47 0.01
1K
R2374
1C2033
1
C2034
C2028 1
C2032 1
1000P
C2024
1000P
C2026
15K
R2152
15K
R2154
680
R2103 10C2021
C2031 1
10
C2020
R2012 680
C2029 1
C2054
1000P
C2053
1000P
C2043
1000P 100P
C2049
C2046
1000P 100P
C2050
C2057 50V4.7
10V33C2056
C2193
1
51
49
47
45
42
43
40
41
44
46
48
50
25
20
16
15
18
19
17
23
24
21
22
26
38 3536 3032 31 2729 2834 333739
61423 5
52
89711 1210 13
14
IC2000
C1AB00003256
ASP
R2375
150K
B1ABCF000176
Q2041
C2066
50V1
50V1
C2061
R2294
6.8K
R2295
6.8K
AUX_L
TUNER_R
RCH_IN
TUNER_L
AUX_R
C2089 50V3.3
R2078 56K
R2077
1K
C2242
0.1 C2093
16V1000
CLIP_ATTN
R2079 33
C2090 50V1
C2092
0.068
ASP_DATA
ASP_CLK
CD_L
CD_R
DAGND
PW_+9V
AGND
100
R2246
Q2042
B1ABCF000176 R2377
1K SYS3.3V
BASS_SHIFT
RIGHT-OUT
LEFT-OUT
PW_+9V_1
MPORT_R
MPORT_L
SWITCH
SWITCH
SWITCH
SWITCH
SWITCH
LCH_IN
[26] SURTC
[14] BPF2
[15] BPF3
VOL2CAPA
GND
TONEB1B TONEB2B
SRFIL
TONEM1B TONEM2B
SDA
V+
SCL
OUTB
VOL2CAPB
EXTSENSE
INT
TONEB1A TONEM1A TONEM2A TONEB2A
BPF1
OUTA
IN3B
[39] NC
IN1B IN2B
RECOUTB
MONOUTB
IN2A IN1A IN3A
[1] NC
IN5A
RECOUTA MONOUTA
IN6B
VREF
IN6DIFF
IN5B
NC
IN6A
NC
NC
NC
IN4A
IN4B
NC
VOLINA VOLINB
TONEHBTONEHA
MIC_GND
R2426
68K
C2055 C2060
47P 100P
675
243
8
V+
V-
1
IC2002
C2059 C2064
47 100
R2043 R2045
22K 22K
R2427
68K
C2048
50V1
C2047
50V1 R2039 22K R2044 22K
C0ABBB000067
BUFFER AMP
R2032
47K
R2029
47K
C2241
0.1
C2041
6.3V100
R2024
3.9K
R2025
3.9K
R2030
47K
R2031
47K
MIC C2037
0.047
R2050
22K
R2053
22K
R2129
0
(R2063)
CHANGE

6
57 58 59 60 61 62 63 64 65 66 67 68 69 70
A
C
D
B
E
G
H
F
: AUX/TUNER/MUSIC PORT/MIC AUDIO INPUT SIGNAL LINE
: CD AUDIO INPUT SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
: +B SIGNAL LINE
: -B SIGNAL LINE : USB SIGNAL LINE
: AM SIGNAL LINE
: FM SIGNAL LINE
P1
TO MAIN(MICON)
CIRCUIT (4/10)
MI: MAIN(MICON): SCHEMATIC DIAGRAM - 5 ~ 14
DA: MAIN(D-AMP): SCHEMATIC DIAGRAM - 15 ~ 16
TO MAIN(MICON)
CIRCUIT (10/10)
BMAIN(MICON) CIRCUIT
SCHEMATIC DIAGRAM - 9
10/10 MAIN(MICON) CIRCUIT
SA-AKX74PH/PN
3/10 5/10
8/10
2/10
7/10
4/10
9/10
1/10
6/10
L
TO
D-AMP CIRCUIT
(CN5902)
IN SCHEMATIC
DIAGRAM - 21
1
9
AA
AB
AC
AD
SW_MUTE R2133
0B1GDCFJJ0047
MUTING CONTROL
Q2006
C2119
6.3V220
UP_DGND
C2238
2.2
3
2
6
7
4
5
1
9
8
CN2011
DC_DET_AMP
MODE_DA
MUTE_F
PW_+5V
GND +5V
AGND
FHOP
MOD_DA
+5V GND
DC_DET
SUBWOOFER
SIGNAL AGND
MUTE F
F_HOP
AGND
R2125
SW_LV2
Q2005
B1GDCFJJ0047
BUFFER
R2111
47K
C2113
50V1
C2109
SW_LV1
R2110
R2089
10K
C2111
10M
0.01
Q2004
B1GDCFJJ0047
BUFFER
R2119
C2112
1K
R2145
10K
R2147
C2125 C2131
1 0.01 R2151 18K
R2148
1K
R2149
470
Q2008
B1ABCF000176
MUTING
R2179
12K
R2180
100K
Q2010
B1ABCF000176
SW LEVEL CONTROL
R2167
2.2K
Q2009
B1ABCF000176
SW LEVEL CONTROL
R2132
1K
R2131
C2118
10K
47P 1K
0.56
R2124
100P 27K
15K C2122 15K
10
C2124
10
675
24
V-
3
8
V+
1
IC2004
C0ABBB000067
DUAL OP-AMP
(R2124)
CHANGE

7
A
C
D
B
E
G
H
F
57 58 59 60 61 62 63 64 65 66 67 68 69 70
: AUX/TUNER/MUSIC PORT/MIC AUDIO INPUT SIGNAL LINE
: CD AUDIO INPUT SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
: +B SIGNAL LINE
: -B SIGNAL LINE : USB SIGNAL LINE
: AM SIGNAL LINE
: FM SIGNAL LINE
TO MAIN(MICON)
CIRCUIT (9/10)
10/10 SA-AKX74PH/PN MAIN(MICON) CIRCUIT
3/10 5/10
8/10
2/10
7/10
4/10
9/10
1/10
6/10
BMAIN(MICON) CIRCUIT
SCHEMATIC DIAGRAM - 14
TO MAIN(MICON)
CIRCUIT (5/10)
MI: MAIN(MICON): SCHEMATIC DIAGRAM - 5 ~ 14
DA: MAIN(D-AMP): SCHEMATIC DIAGRAM - 15 ~ 16
4
5
3
AA
AB
AC
6
7
AD
1.8K
R2320
18K
27K
27K
R2321
18K
R2292
10K
0.068
C2204 R2290
4.7K
R2293
10K
C2213
0
1.8K
R2305
R2308
0.068
C2205 R2291
4.7K
C2212
0
R2264
R2265 10K
C2186
R2257
12K
C2185
10
C2183 R2254 C2181 R2258 6800P
1M 0.68 10K 15K
675
243
8
1
IC2001
R2259 C2184 R2255 C2182
15K 6800P 1M 0.68
R2256 12K
R2267
10 6.8K
R2270
39K
C2180
10
R2272 2.7K
0.1C2189
2.7KR2268
C2179 10
R2266
6.8K
R2269
39K
C2107
0
R2225
0C2108 0
R2224
0
Q2029
B1ABCF000176
BUFFER AMP
R2244
4.7K
R2245
4.7K R2242 27K C2166 0.056
Q2032
B1ABCF000176
BUFFER AMP
R2241
27K
R2238
1.8K
R2239
1.8K C2169 0.15
C2165
0.056
C2168
0.15
R2434
C2200
25V220
R2435
1.8K
R2048
33
R2436
4.7K
27K
C2280
C2282
0.056
R2439
27K
C2279
0.056
0.15
R2440
1.8K
C2281
0.15
R2438
4.7K
Q2030
B1ABCF000176
BUFFER AMP
Q2028
B1ABCF000176
BUFFER AMP
16V220C2190
C0ABBB000067
DUAL OP-AMP
GND
V+
FR_R_WOOFER DA
FR_R_TWEETER DA
FR_L_WOOFER DA
FR_L_TWEETER DA
CHANGE
(R2320,R2321)

8
3.2. Panel Circuit (SA-AKX74PH/PN-K)
With reference to original service manual (section 16.5) on pages 99.
A
12 3 4 5 6 7 8 9 10 11 12 13 14
1 2 3 4 5 6 7 8 9 10 11 12 13 14
C
D
B
E
G
H
F
PANEL CIRCUIT
SCHEMATIC DIAGRAM - 17
SA-AKX74PH/PN PANEL CIRCUIT
2/21/2
TO PANEL
CIRCUIT (2/2)
D
TO
REMOTE SENSOR
CIRCUIT (CN6200)
IN SCHEMATIC
DIAGRAM - 19
: -B SIGNAL LINE
: +B SIGNAL LINE
P1
: MUSIC PORT/MIC AUDIO INPUT SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
C
123 123
D6010
B0BC035A0007
B0EAMM000057
D6007
R6038
5.6K
Q6003
B1BAAL000018
POWER SAVE CONTROL
C6024
3300P
R6049
47K
R6039
47
L6000
J0JBC0000019
-VP
B0EAMM000057
D6005 D6008
DZ2J24000L
C6028
50V47
GR1
SG1
PW_CD3.3V
GR11 GR12
SG2 SG3
C6021 0.01
GR2 GR3
GR8 GR9 GR3 GR2 GR6 GR4 GR5 GR1 GR7
C6010 330P
330P
C6013 330P C6012 R6033 82K
GR10
GR11 GR12 NC NC NC NC NC NC NC NC GR8 GR9 GR3 GR2 GR6 GR4 GR5 GR1 NC NC NC F+ GR7 GR10
R6047
1
C6029
16V100 R6053
10
R6051
1
D6009
B0BC2R4A0006
5
34
87
62
19
T6000
G4DYA0000214
SWITCHING TRANSFORMER
B0JAME000114
D6006
SG7 SG6
SG12 SG10 SG11 SG16
SG13
SG15 SG14
SG8 SG9 SG4 SG1 SG3 SG2 SG5
SG7 SG6 SG12 SG10 SG11 SG16 SG13 SG15 SG14 SG8 SG9 SG4 SG1 NC NC NC F- SG3 SG2 SG5
C6031
0.1
22K
R6054
C6032
50V22
C6023
50V47
GR6 GR5 GR8 GR9 GR7
SG6 SG5 SG9 SG7 SG8
GR4
SG4
SG14
GR12
SG15
SG16
SG11
SG10
SG13
SG12
GR10
GR11
21
5
6
3
1
2
4
19
9
7
8
16 17
11
10
12 151413 18 20
35374244 43 39 3841 40 36
33
22
31
29
27
24
23
26
25
28
30
32
34
C0HBB0000057
FL DISPLAY DRIVER
IC6000
C6003
0.1
220R6031
R6029 220
FL_CLK
FL_CS
FL_DA
435234 618 39353127 2825 26 3029 3432 33 3836 37 4240 411312 15 161491110 23 2418 1917 21 22207 44
A2BB00000184
FL DISPLAY
FL6000
R6030 470
FL_GND
PW_+18V
S13
S12
CLK
STB
P1 G11
NC
P3 S16 VEE
S14
S15
G12/S17P2
OSC
DIN
K2
[12] VSS
K1
S2 S3 S1 S6 S5 S7 S4
[22] S9
S8 VDD
S10
S11
G3 G2 G1 G7 G9 G8
[33] G10
G5 G4 G6
P0
[44] VSS
VDD
1000P
1000P
1000P
1000P
1000P
1000P
1000P
1000P
1000P
1000P
1000P
1000P
C6004
C6005
C6007
C6008
C6009
C6011
C6014
C6016
C6018
C6019
C6020
C6022
VR6001
K9AA012Y0004
VOL_JOGB ROT_JOGA
C6027
100P
10K
R6048
10K
R6041
C6026
100P
RMT ROT_JOGB
10K
R6050
100P
C6030
PW_SYS3.3V DGND
EVEKE2F3524B
VR6000
VOL_JOGA
R6040
10K
C6025
100P
2
1
4
3
CN6001
VREF+
ALBUM/TRACK
DGND
VOLUME
RMT
RMT
P3
P2
P0
DELETE
(D6011)
ADD
(D6007)

9
3.3. CD Interface, Mic and Voltage Selector Circuit (SA-AKX74PH/PN-K)
With reference to original service manual (section 16.7) on pages 102.
A
12 3 4 5 6 7 8 9 10 11 12 13 14
1 2 3 4 5 6 7 8 9 10 11 12 13 14
C
D
B
E
G
H
F
A
C
D
B
E
G
H
F
HCD INTERFACE CIRCUIT
SCHEMATIC DIAGRAM - 20
SA-AKX74PH/PN CD INTERFACE / MIC / VOLTAGE SELECTOR CIRCUIT
NVOLTAGE SELECTOR CIRCUIT
M
TO
SMPS CIRCUIT
IN SCHEMATIC
DIAGRAM - 23
A
TO
CD SERVO CIRCUIT
(FP8251)
IN SCHEMATIC
DIAGRAM - 4
TO LOADING P.C.B.
(CD MECHANISM UNIT BRS11C)
NOTE: “ * ” REF IS FOR INDICATION ONLY
KMIC CIRCUIT : +B SIGNAL LINE : MIC AUDIO INPUT SIGNAL LINE
C
TO
PANEL CIRCUIT
(ZJ6003*)
IN SCHEMATIC
DIAGRAM - 18
F
TO
MUSIC PORT
CIRCUIT (ZJ6402*)
IN SCHEMATIC
DIAGRAM - 19
FOR PH
(BLK)
TL5*
TL6*
(RED)
S5701
VOLT ADJ
2
3
1
2
3
1
5
4
CN7001
+
M7301*
6
8
9
7
2
1
1
4
5
3
10
10
CN7002
4
31
2
S7201
RESET
+
M7302*
DGND
OPEN_SW
SPM+
SPM-
LDM+
CLOSE_SW
TRV+
LDM-
LDM+
OPEN_SW
DGND
REST_SW
TRV-
LDM-
CLOSE_SW
SPINDLE
MOTOR
TRAVERSE
MOTOR
1
2
ZJ6501*
4
3
2
1
+9V
MIC
MIC_SW
MIC_GND
CHASSIS_GND
CHASSIS_GND
ZJ6500*
231
VR6500
EVUF2AF15B14
MIC VOLUME
1
7
6
4
2
3
5
JK6500
MIC
C6516
0.01
C6517
0.01
C6515
1000P
C6505 16V10
C6513
50V0.1
C6509 50V1
564 123
91113141210
7
8
IN VREF INT V+ GND
GAIN1
OUT
BUFFOUT
BUFFGAIN
BUFFIN
SENSE GAIN SW
C6503
47P
50V4.7
C6507C6504
50V0.1
C6514
50V2.2
2200P
1000P
C6511
C6510
50V1
C6500
50V4.7
0
LB6500
DET
GAIN2
C6506
4700P
R6506
560
R6507
680 L6500
L6502
0J0JBC0000019
100KR6502
R6504
15K
33K R6505
330
R6500
100
R6503
4.7K
IC6500
C1AB00003130
MIC AMPLIFIER
C6502 16V10
R6501 6.8K
CHANGE
(C6511,R6504)

10
3.4. D-Amp Circuit (SA-AKX74PH/PN-K)
With reference to original service manual (section 16.8) on pages 103.
A
12 3 4 5 6 7 8 9 10 11 12 13 14
1 2 3 4 5 6 7 8 9 10 11 12 13 14
C
D
B
E
G
H
F
A
C
D
B
E
G
H
F
LD-AMP CIRCUIT
SCHEMATIC DIAGRAM - 21
SA-AKX74PH/PN D-AMP CIRCUIT
: AUDIO OUTPUT SIGNAL LINE
: -B SIGNAL LINE
: +B SIGNAL LINE
TO SPEAKER
(SUBWOOFER)
B
TO
MAIN(MICON)
CIRCUIT (CN2011)
IN SCHEMATIC
DIAGRAM - 9
M
TO
SMPS CIRCUIT
(CN5801)
IN SCHEMATIC
DIAGRAM - 22
9
1
R5940 100K
R5918
2.7K
R5913
2.7K
C5933
0.015 TH5900
D4CC11040013
R5926
100
0.47
C5941
220P
C5934
C5932 0.1
C5937
0.1 0.1
C5936
220P
C5935R5922
10
C5930 0.47
0.1
C5931
R5924
5.6K
C5938
0.1 C5939 0.1
C5947
1000P
C5955 0.1 C5954 0.1
5.6K
R5933
0.68
C5949
D5906
B0EAKM000117
D5905
B0EAKM000117
R5932
22 5.6K
R5934
0.1
C5951
4
2
3
1SWL-
-G2
+
G1
SWL+
JK5901
B0EAKM000117
D5904
B0EAKM000117
D5903
C5950
0.1
R5931
22
C5948
0.68
2
43
1
G0A150L00003
L5903
C5942
1000P C5946
16V10
C5944
0.47
C5943
330P
R5925
5.6K
19 21 23222010218974563121514 17 18161311
C1BA00000497
AUDIO DIGITAL AMPLIFIER
IC5900
10
R5921
C5925 C5926 0.1
0.1
C5917
1000P
C5920
100V22
10
R5917
C5915
0.47 0.47
C5919
220P
C5929
220P
C5927
C5918
330P
R5914
5.6K
R5911
5.6K
C5928
0.015
C5921
0.1 C5924 33P
C5923
0.1
R5923
6.8K
R5928
82K
Q5905
B1ABCF000176
SWITCH
B1ABCF000176
Q5906
R5915
10K
82K
R5927
10V100
C5945
B1ABCF000176
SPEAKER PROTECTION SWITCH
SPEAKER PROTECTION SWITCH
Q5907
R5901
120K
B1GBCFJJ0051
FREQUENCY HOPPING
QR5900
R5935
10K
R5904
10K
10
R5905
0
C5956
C5901
1000P
4
6
7
5
1
2
3
9
8
CN5902
0.1
C5904
0.1
C5903
2
4
3
1
6
5
ZJ5901*
B1GDCFJJ0047
+5V POWER SUPPLY
QR5901
L5902
J0JKB0000020
50V220
C5908
C5909
0.1
C5910
0.1
50V220
C5907
L5901
J0JKB0000020
C5905
0.1
0.1
C5906
B1ADCE000012
+5V VOLTAGE SUPPLY SWITCH
Q5902
R5910
1.5K
R5909
33K
R5906
180K
Q5901
B1ABGC000005
SWITCH
R5907
27K
R5903
10K
R5908
10K
Q5903
B1ABCF000176
MODE SWITCH
MODE IN2+ VSSP2 PROT OUT1 VDDP1 BOOT1 SGND1 VDDA1 VSSA1 OSC STABI VSSP1 VSSD OUT2 SGND2 VSSA2 VDDA2 BOOT2 VDDP2 IN1- IN1+ IN2-
SYS_GND
+35V_SENSE
+35V_SENSE
-35V_SENSE
SYS_GND
-35V_SENSE
+5V
MOD_DA
+5V GND
SIGNAL AGND
SUBWOOFER
MUTE_F
DC_DET
FHOP
AGND
NOTE: “ * ” REF IS FOR INDICATION ONLY
G2G1
HEATSINK*
321
ZJ5900*
R5929...AKX74
0
ADD
(R5929)