8 Exploded View and Replacement Parts List-----------24
8.1. Explo ded View and Mechanical Replacement
Parts List ---------------------------------------------------24
8.2. Electrical Replacement Parts List--------------------29
2
Page 3
1Safety Precautions
1.1.General Guidelines
1. Wh en servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, carry out the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.1.1.Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. Measure the resistance value, with an o hmmeter, between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to th e
chassis, the reading should be between 1M and 5.2M.
When the exposed metal does not have a return path to the chassis, the reading must be
(This “Safety Precaution” is applied only in U.S.A.)
1. Before servicing, unplug the power cord to prevent an electric shock.
2. When replacing parts, use only manufacturer’s recommended components for safety.
3. Check the condition of the power cord. Replace if wear or damage is evident.
4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5. Before re turning the serviced equip ment to the customer, be sure to make the following insulation resistance test to prevent
the customer from being exposed to a shock hazard.
1.1.2.Leakage Current Hot Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5k, 10 watts resistor, in parallel with a 0.15F capacitors, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. Th e potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent)
may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the
limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is
returned to the customer.
Figure 1
1.2.Before Repair and Adjustment
Disconnect AC power to discharge unit AC Capacitors as such (C5700, C5701, C5703, C5704, C5705, C5708) through a 10 , 10
W resistor to ground.
Caution:
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
Current consumption at AC 120V, 60 Hz in Power ON, FM Tuner, No Signal, Volume minimal mode should be ~ 500 mA
1.3.Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
• No sound is heard when the power is turned on.
• Sound stops during a performance.
3
Page 4
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
“shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
1.4.Caution For Fuse Replacement
1.5.Safety Parts Information
Safety Parts List:
There are special components used in this equipment which are important for safety.
These parts are marked by () in the Exploded View & Replacement Parts List. It is essential that these critical parts should be
replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design without
permission of manufacturer.
Safety Ref No.Part No.Part Name & DescriptionRemarks
20RKMX1011-K1TOP CABINET
21RGRX1008K-FREAR PANEL
301RAEX1033Z-VTRAVERSE ASS'Y
A2K2CB2YY00059 AC CORD
A3RQT9691-1PO/I BOOK (En)
PCB8REP4783AASMPS P.C.B.(RTL)
DZ5701 ERZVA5Z471ZNR
L5701G0B932H00002 LINE FILTER
T5701G4DYZ0000057 MAIN TRANSFORMER
T5751ETS19AB2E6AG SUB TRANSFORMER
PC5701 B3PBA0000503 PHOTO COUPLER
PC5702 B3PBA0000503 PHOTO COUPLER
PC5720 B3PBA0000503 PHOTO COUPLER
PC5799 B3PBA0000503 PHOTO COUPLER
F1K5D802APA008 FUSE
TH5702 D4CAA2R20001 THERMISTOR
TH5860 D4CC11040013 THERMISTOR
TH5900 D4CC11040013 THERMISTOR
P5701K2AB2B000007 AC INLET
R5708ERJ8GEYJ155V 1.5M 1/4W
R5709ERJ8GEYJ155V 1.5M 1/4W
C5700F1BAF471A013 470pF
C5701F0CAF104A105 0.1uF
C5703F0CAF224A105 0.22uF
C5704F1BAF471A013 470pF
C5705F1BAF471A013 470pF
C5708F1BAF1020020 1000pF
4
Page 5
2Warning
2.1.Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive
(ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damag e
caused by electrostatic discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an e lectrical a ssembly equip ped with ES d evices, plac e the assembly o n a conductive surface such as al uminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
Caution:
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) suf-
ficient to damage an ES device).
5
Page 6
2.2.Precaution of Laser Diode
Caution:
This product utilizes a laser diode with the unit turned “on”, invisible laser radiation is emitted from the pickup lens.
Wavelength: 790 nm (CD)
Maximum output radiation power from pick up : 10 0 W/VDE
Laser radiation from the pickup unit is safety level, but be sure the followings:
1. Do not disassemble the pickup unit, since radiation from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pickup unit. It was already adjusted.
3. Do not look at the focus lens using optical instruments.
4. Recommend not to look at pickup lens for a long time.
6
Page 7
2.3.Service caution based on Legal restrictions
2.3.1.General description about Lead Free Solder (PbF)
The lead free solder has been used in the mounting proce ss of a ll electrical components on the printed circuit board s used for this
equipment in considering the globally environmental conservation.
The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy ma inly consists of tin
(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86F) more than that
of the normal solder.
Definition of PCB Lead Free Solder being used
The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.
(See right figure)
Service caution for repair work using Lead Free Solder (PbF)
• The lead free solder has to be used when repairing the equipment for which the lead free solder is used.
(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)
• To put lead free solder, it should be well molten and mixed with the original lead free solder.
• Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.
• Since the melting point of the lead free solder is higher than that of th e normal lead solder, it takes the longer time to melt the
lead free solder.
• Use the soldering iron (more than 70W) equipped with the temperature con trol after setting the temperatu re at 350±30 degrees
C (662±86F).
Recommended Lead Free Solder (Service Parts Route.)
• The following 3 types of lead free solder are available through the service parts route.
RFKZ03D01K-----------(0.3mm 100g Reel)
RFKZ06D01K-----------(0.6mm 100g Reel)
RFKZ10D01K-----------(1.0mm 100g Reel)
Note
* Ingredient: tin (Sn), 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%
7
Page 8
2.4.Handling Precautions for Traverse Unit
The laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must be
taken avoid caution to electrostatic breakdown when servicing and handling the laser diode in the traverse unit.
2.4.1.Cautions to Be Taken in Handling the Optical Pickup Unit
The laser diode in the optical pickup unit may be damaged due to electrostatic discharge gene rating from clothes or human body.
Special care must be taken avoid caution to electrostatic discharge damage when servicing the laser diode.
1. Do not give a considerable shock to the optical pickup unit as it has an extremely high-precise structure.
2. To prevent the laser diode from the electrostatic discharge damage, the flexible cable of the optical pickup uni t removed
should be short-circuited with a short pin or a clip.
3. The flexible cable may be cut off if an excessive force is applied to it. Use caution when handling the flexible cable.
4. The antistatic FPC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexible cable, cut off the antistatic FPC.
8
Page 9
2.4.2.Grounding for electrostatic breakdown prevention
Some devices such as the DVD player use the optical pickup (laser diode) and the optical pickup will be damaged by static electricity in the working environment. Proceed servicing works under the working environment where grounding works is completed.
2.4.2.1.Worktable grounding
1. Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed, and ground the sheet.
2.4.2.2.Human body grounding
1. Use the anti-static wrist strap to discharge the static electricity form your body.
9
Page 10
3Service Navigation
3.1.Service Information
This service manual contains technical information which will allow service personnel’s to understand and service this model.
Please place orders using the parts list and not the drawing reference numbers.
If the circuit is changed or modified, this information will be follow ed by supplement service manual to be filed with origi nal service
manual.
• CD Mechanism unit (BRS1C):
1) This model uses CD Mechanism Unit (BRS1C).
• Micro-processor:
1) The following components are supplied as an assembled part.
- Micro-processor IC, IC2003 (RFKWMAKX14M0)
• Speaker system:
1) This model uses Speaker System, SA-AKX14P-K.
• Base model:
1) The base is SA-AKX14PN-K.
As such this service manual does not contain the following information as below:-
• Location of Controls and Components
• Self-Diagnostic and Special Mode Setting
• Troubleshooting Guide
• Disassembly and Assembly Instructions
• Replacement of Traverse Unit
• Simplified Block Diagram
• Block Diagram (except Power Supply)
• Wiring Connection Diagram
• Schematic Diagram (except Main Circuit & SMPS Circuit)
• Printed Circuit Board (CD Servo P.C.B. only)
• Voltage & Waveform Chart
• Illustration of IC, Transistor & Diode
• Terminal Function of ICs
10
Page 11
3.2.Differences Table
Ref No.Part No.Part Name & DescriptionRemarks
SA-AKX14PN-KSA-AKX14P-K
18RFKGAKX14PHK RFKGAKX14P-K FRONT PANEL ASS'YL
21RGRX1008K-ARGRX1008K-FREAR PANEL
A3RQT9609-1MRQT9691-1PO/I BOOK (En)
P1RPG9738RPG0A44PACKING CASE
PCB2REP4743AAREP4743EAMAIN P.C.B.
PCB3REP4743ABREP4743EBPANEL P.C.BL
PCB4REP4743ACREP4743ECLCD P.C.B.
PCB5REP4743ADREP4743EDUSB P.C.B.
PCB6REP4743AEREP4743EEREMOTE SENSOR P.C.B.
PCB8REP4783AAREP4783HASMPS P.C.B.
Number of channels2 ch (FL, FR)
FL = Front left channel
FR = Front right channel
*MPEG-1 layer 3
2. Total harmonic distortion is measured by the digital spectrum
analyzer.
System: SC-AKX14P-K
Main Unit: SA-AKX14P-K
Front Speakers: SB-AKX14P-K
USB SECTION
USB Port
USB standardUSB 2.0 full speed
Media file format supportMP3 (*.mp3)
USB device file systemFAT12, FAT16, FAT32
USB Port power500 mA (max)
Bit Rate 16 kbps to 320 kbps (playback)
GENERAL
Power supply
AC 120 V, 60 Hz
Power Consumption58 W
Dimensions (W x H x D)220 mm x 334 mm x 245 mm
Mass (Weight)2.8 kg (6.2 lbs)
Operating temperature range0 C to +40 C
(+32F to 104F)
Operating humidity range35% to 80% RH
Power Consumption in standby
mode
Notes
1. Specifications are subject to change without notice.
Mass and dimensions are approximate.
5
/8“x 131/8“x 95/8”)
(8
(no condensation)
0.2 W (Approximate)
12
Page 13
5Block Diagram
SA-AKX14P POWER SUPPLY (1/2) BLOCK DIAGRAM
TO POWER SUPPLY
BLOCK (2/2)
1
4
3
2
4
1
AC INLET
P5701
F1
DZ5701
5,65,6
CN2000CN5802
77
CN2000CN5802
+35V SENSE+35V SENSE
88
CN2000CN5802
SYS3.3VSYS3.3V
SYS3.3V,DVREF+
SYS3.3V,DVREF+
SWITCHING MODE POWER
SUPPLY CONTROL
MIP2F20MSSCF
IC5799
SHUNT
REGULATOR
C0DAZYY00039
IC5801
3
4
2
1
SUB
TRANSFORMER
T5751
MAIN
TRANSFORMER
T5701
TH5702
TH5860
D5701
D5896
D5798
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
Q2022
Q2000
D2000
D2017
D2004
D2022
D2015D2014
+7.5V VOLTAGE
REGULATOR
VOLTAGE
CONTROL
Q2021
+9V VOLTAGE
REGULATOR
QR2001
SWITCH
Q5898
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
IC5701
VCC
OCP/BD
FB
D
35V
SYNCSYNC
DCDET2DC DET PWR
+9V+9V
+7.5V
+5V
+35V SENSE
-35V SENSE
+5V
+5V
DC16V
DC16V
DC16V
DC16V
PCONTPCONT
SYNC
1,21,2
CN2000CN5802
-35V SENSE
-35V
CD 3.3V
IC2009
+5V
+3.3V VOLTAGE
REGULATOR
C0DBFYY00049
IC2011
+5V VOLTAGE
SWITCHING
REGULATOR
C0DBAYY01122
IC5899
SHUNT
REGULATOR
C0DAEYY00040
9V
DC DET PWR
PCONT
3.3V
DC ENABLE
DC ENABLE
SMPS BP
CD+7.5V
CD 3.3V
+5V
5V
SMPS BP
FROM/TO
SERVO & SYSTEM CONTROL
1414
CN2000CN5802
PCONT
1010
CN2000CN5802
DCDET2
1313
CN2000CN5802
DC16V
L5701
324
1
3
2
L5705
SMPS P.C.B.
MAIN P.C.B.
4
7
6
1
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
KCRR
2 VIN
7
EN
SW 3
FB 5
BST 1
1 VIN
3CE
VOUT 5
Q5720
VOLTAGE
REGULATOR
D5721
D5722
D5728
D5723
SECONDARYPRIMARY
5.1.Power Supply
13
Page 14
SYS3.3V,DVREF+
1
MAIN P.C.B.
DVREF+
SYS3.3V
DVREF+DVREF+
CN6001CN2003
144
SYS3.3VSYS3.3V
CN6001CN2003
126
PANEL P.C.B.
DVREF
3.3V
2
3
4
TO POWER SUPPLY
BLOCK (1/2)
REMOTE SENSOR P.C.B.
VREF+VREF+VREF+
CN6006CN6005
22
CN6000ZJ6002*
CD 3.3VCD 3.3VCD3.3VCD3.3V
D2018,D2019
D2020,D2021
CD+7.5VCD+7.5V+7.5V+7.5V
CD 3.3V3.3V3.3V
CN6001CN2003
+5V+5V
+5V+5V+5V5V
LD SWLD SWLD SW
3.3V3.3V3.3V
108
CN6001CN2003
162
CN7002CN2706
15,1612,13
CN7002CN2706
127
CN7002CN2706
226
CN7002CN2706
1315
CN51CN2010
55
CD3.3V
+5V
VBUS
CD3.3V
33
CN6000ZJ6002*
+5V+5V
11
ZJ6001*CN79014CN2001
CN2005
4,52
4,5
VBUS
3.3V
LCD P.C.B.
3.3V
5V
USB P.C.B.
VBUS
VBUS
CD SERVO P.C.B.
5V
7.5V
3.3V
LDSW
TUNER P.C.B.
3.3V
14
SA-AKX14P POWER SUPPLY (2/2) BLOCK DIAGRAM
Page 15
6Schematic Diagram
A
1
234567891011121314
C
D
B
E
G
H
F
B
MAIN CIRCUIT
SCHEMATIC DIAGRAM - 3
SA-AKX14P MAIN CIRCUIT
2/4
4/4
1/4
3/4
TO MAIN
CIRCUIT (2/4)
TO MAIN
CIRCUIT (3/4)
P1
: CD AUDIO INPUT SIGNAL LINE: AUX/TUNER AUDIO INPUT SIGNAL LINE: AUDIO OUTPUT SIGNAL LINE: -B SIGNAL LINE: +B SIGNAL LINE
: USB SIGNAL LINE
8.2K
R2348
0.068
C2006
27K
R2153
27K
R2349
0.068
C2007
8.2K
R2347
C2402
10
C2204
47P
C2206
560P
27K
R2207
4.7K
R2210
1
C2202
675
24V-3
8
V+
1
IC2201
C0ABBB000067
R2350
39K
R2351
39K
C2128
5600P
C2138
5600P
R2220
2.2K
C2231
16V100
C2405
10
2.2K
R2219
560P
C2207
47P
C2205
0
R2209
0
R2204
DUAL OP-AMP
R2208
27K
R2205
4.7K
C2209
1
C2108 1
C2114 1
C2109 1
C2116 10
10C2107
C2113 1
C2127
0.01
C2134
16V10
C2817
50V4.7
C2133 16V100
AUX_R
AUX_L
1K
R2131
1K
R2130
100
R2377
CLIP_SENSOR
+9V
BASS_SHIFT
100
R2376
B0EAKM000117
D2120
ASP_CLK
AUTO_BASS
ASP_DATA
B1ADCE000012
Q2051
CLIP SENSING
CLIP SENSING
R2121
4.7M
C2121
16V100
D2300
DA2J10100L
D2301
DA2J10100L
B1ADCE000012
Q2050
C2208
16V100
R2201
1K
R2202
1K
R2313
100K
R2314
100K
C2118 0.12
C2125 0.12
C2122 50V2.2
C2132 50V2.2
C2123 0.22
R2113 2.7K
C2301 10
R2307
R2114
330
R2111
330
2.2K
C2302 10
R2308 2.2K
R2112 2.7K
C2119 0.056
C2126 0.056
C2131 1800P
C2120 1800P
231
726
825
5
4
29
28
627
17
1815
16
13
11
9
10
1221
20
23
24
22
1419
3
1
30
32
IC2101
C1BB00001151
TUN_R
TUN_L
CD-L
CD-R
Q2041
B1ABCF000176
1K
R2372
R2222
4.7K
100
R2302
C2222
10
C2307
0.1
C2308
0.1
330
R2305
330
R2306
2.7K
R2233
2.7K
R2225
Q2220
B1ABCF000176
100
R2304
C2221
0.18
BUFFER AMP
Q2222
B1ABCF000176
BUFFER AMP
SWITCH
SWITCH
82K
R2223
82K
R2227
Q2040
B1ABCF000176
0.18
C2232
C2220
0.22
0.22
C2224
10
C2226
4.7K
R2226
R2230
100K
100K
R2231
1K
R2374
FR
FL
4.7K
R2358
10K
R2361
33K
R2363
C2247
SWITCH
SWITCH
0.1
C2245
1
470K
R2362
DA2J10100L
D2028
B1ADCE000012
Q2039
R2359
1K
R2360
100K
R2364
2.2K
R2357
4.7M
C2244
0.22
C2248
1
C2246
0.1
B1ABCF000176
Q2038
UP_DGND
AGND
BASSR2INR3
LOUTINR2
INR4 BASSR1
ROUT
ASP
INR1
SDA
DGND
IGOUTL
VCCCEXT
SCL
AGND
INL2
INL1
REFIN
TRER
TREL
DIFFG
VOLINL
VOLINR
BASSL2
IGOUTR
BASSL1
DIFFL
DIFFR
INR5
INL3
INL5
INL4
SWITCH
B1GDCFJJ0047
QR2400
SWITCH
B1GDCFJJ0047
QR2402
R2016 47K
R2015 47K
C2117 220P
C2112 220P
0.01
C2026
0.01
C2025
C2004
10
6.1.Main Circuit
15
Page 16
1516171819202122232425262728
B
SCHEMATIC DIAGRAM - 4
MAIN CIRCUIT
TO MAIN
CIRCUIT (1/4)
P1
+35V_SENSE
-35V_SENSE
FL
AGND
FR
DC_DET_AMP
+5V
FHOP
MODE_DA
MUTE_F
C5901
1000P
R5914
10K
R5915
10K
C5902
1000P
L5901
J0JKB0000020
C5912
0.1
C5911
0.1
L5900
J0JKB0000020
QR5900
B1GDCFJJ0047
+5V POWER SUPPLY
QR5901
B1GBCFJJ0051
FREQUENCY HOPPING
+5V VOLTAGE SUPPLY SWITCH
R5909
10K
Q5901
B1ADCE000012
Q5902
B1ABCF000231
MODE SWITCH
RMCX1008*
21
C5916
50V220
C5915
50V220
R5907
C5918
C5917
120K
Q5900
B1ABGC000005
SWITCH
R5917
10K
0.1
0.1
R5918
2.7K
R5919
10K
HEATSINK*
R5910
180K
R5920
2.7K
: CD AUDIO INPUT SIGNAL LINE: AUX/TUNER AUDIO INPUT SIGNAL LINE: AUDIO OUTPUT SIGNAL LINE: -B SIGNAL LINE: +B SIGNAL LINE
OSC
G1G2
R5911
27K
Q5903
B1ABCF000231
SWITCH
R5922
C5925
R5912
33K
R5913
1.5K
5.6K
0.47
IN1+
C5929
330P
C5927
1000P
5.6K
R5924
0.47
C5931
A
: USB SIGNAL LINE
IC5902
C1BA00000497
AUDIO DIGITAL AMPLIFIER
MODE
PROT
SGND1
VDDA1
C5936
0.1
C5937
0.1
C5939
0.1
VSSA1
C5942
33P
C5943 0.1
SPEAKER PROTECTION SWITCH
IN1-
10
R5926
R5905
10
OUT1
VDDP1
BOOT1
C5951
0.015
R5928
C5948
10
220P
C5952
220P
B1ABCF000231
SPEAKER PROTECTION SWITCH
Q5904
B1ABCF000231
VSSP1
C5956
Q5905
VSSP2
STABI
OUT2
C5961
0.015
C5954 0.47
0.1
10
C5962
220P
C5958 0.1
R5927
6.8K
BOOT2
C5964R5936
220P
VDDP2
VSSD
C5968 0.1
VSSA2
C5970
0.1
C5974
0.1
19212322201021897456312151417 18161311
SGND2
C5973
0.1
VDDA2
R5939
C5976
5.6K
0.47
IN2-
C5980
330P
C5978
1000P
5.6K
R5941
0.47
C5982
IN2+
100
R5942
TH5900
D4CC11040013
C5985
1000P
C5983
50V1
D5909
B0EAKM000117
D5910
B0EAKM000117
L5903
G0A150L00003
1
D5908
B0EAKM000117
D5906
B0EAKM000117
43
2
R5963
150K
C5946
10V100
C5989
0.47
C5990
0.47
R5946
22
C5993
0.1
C5994
0.1
R5947
225.6K
R5950
5.6K
R5951
R5962
150K
0.1C5802
B
C
C5922
0
G2
JK5000
4
LEFT 3
2
1
LEFT +
RIGHT -
RIGHT +
G1
TO SPEAKERS
D
E
C5803 0.1
C5800 0.1
C5801 0.1
F
G
P1
NOTE: “ * ” REF IS FOR INDICATION ONLY
TO MAIN
CIRCUIT (4/4)
16
2/4
1/4
4/4
3/4
SA-AKX14P MAIN CIRCUIT
H
Page 17
I
1234567891011121314
K
L
J
M
O
P
N
B
MAIN CIRCUIT
SCHEMATIC DIAGRAM - 5
SA-AKX14P MAIN CIRCUIT
2/4
4/4
1/4
3/4
TO MAIN
CIRCUIT (1/4)
TO MAIN
CIRCUIT (4/4)
P1
: CD AUDIO INPUT SIGNAL LINE: AUX/TUNER AUDIO INPUT SIGNAL LINE: AUDIO OUTPUT SIGNAL LINE: -B SIGNAL LINE: +B SIGNAL LINE
A
TO
CD SERVO
CIRCUIT (CN7002)
IN SCHEMATIC
DIAGRAM - 2
C
TO
PANEL CIRCUIT
(CN6001)
IN SCHEMATIC
DIAGRAM - 7