Panasonic SA-AKX72PH, SA-AKX72PN Diagram

Model No. SA-AKX72PH

Product Color: (K)...Black Type

Please refer to the original service manual for:

O CD Mechanism Unit (BRS1C), Order No. PSG1102001CE O Speaker system SB-AKX72PN-K, Order No. PSG1103048CE

PSG1103014CE

CD Stereo System

SA-AKX72PN

TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 3

1.1. General Guidelines---------------------------------------- 3

1.2. Before Use (For PH only)-------------------------------- 3

1.3. Caution For Fuse Replacement ------------------------ 3

1.4. Before Repair and Adjustment ------------------------- 4

1.5. Protection Circuitry---------------------------------------- 4

1.6. Safety Parts Information --------------------------------- 5

2 Warning-------------------------------------------------------------- 6

2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices -------------- 6

2.2. Precaution of Laser Diode------------------------------- 7

2.3. Service caution based on Legal restrictions--------8

2.4. Handling Precautions for Traverse Unit-------------- 9

3 Service Navigation----------------------------------------------11

3.1. Service Information --------------------------------------11

4 Specifications ----------------------------------------------------12

PAGE PAGE

5 Location of Controls and Components------------------ 13

5.1. Main Unit Key Button Operation----------------------13

5.2. Remote Control Key Button Operation ------------- 14

5.3. Media Information---------------------------------------- 15

6 Self-Diagnostic and Special Mode Setting -------------16

6.1. Cold-Start --------------------------------------------------16

6.2. Doctor Mode Table---------------------------------------17

6.3. Reliability Test Mode (CD Mechanism Unit (BRS1C))--------------------------------------------------- 19

6.4. Self-Diagnostic Mode -----------------------------------20

6.5. Self-Diagnostic Error Code Table--------------------21

6.6. Sales Demonstration Lock Function ---------------- 22

7 Troubleshooting Guide ---------------------------------------23

7.1. Troubleshooting Guide for F61 and/ or F76-------23

7.2. Part Location----------------------------------------------24

7.3. D-Amp IC Operation & Control -----------------------27

8 Service Fixture & Tools---------------------------------------29

8.1. Service Tools and Equipment-------------------------29

9 Disassembly and Assembly Instructions---------------30

9.1. Disassembly Flow Chart--------------------------------31

9.2. Main Components and P.C.B. Locations-----------32

9.3. Disassembly of Top Cabinet---------------------------33

9.4. Disassembly of Tuner P. C.B.--------------------------34

9.5. Disassembly of Front Panel Unit ---------------------34

9.6. Disassembly of Jupiter P.C.B.-------------------------36

9.7. Disassembly of Panel P.C.B.--------------------------37

9.8. Disassembly of Remote Sensor P.C.B.-------------38

9.9. Disassembly of USB P.C.B. ---------------------------39

9.10. Disassembly of Music Port P.C.B. -------------------39

9.1 1 . Disassembly of CD Lid----------------------------------41

9.12. Disassembly of Main P.C.B.---------------------------41

9.13. Replacement of Voltage Regulator IC (IC2010) ----------------------------------------------------43

9.14. Disassembly of D-Amp P.C.B.------------------------44

9.15. Replacement of Audio Digital Amp IC (IC5000) ----------------------------------------------------46

9.16. Replacement of Audio Digital Amp IC (IC5400) ----------------------------------------------------47

9.17. Replacement of Audio Digital Amp IC (IC5200) ----------------------------------------------------48

9.18. Disassembly of SMPS P.C.B.-------------------------49

9.19. Replacement of Switching Regulator IC (IC5701) ----------------------------------------------------50

9.20. Replacement of Rectifier Diode (D5702)-----------52

9.21. Replacement of Rectifier Diode (D5801)-----------54

9.22. Replacement of Rectifier Diode (D5802)-----------55

9.23. Replacement of Rectifier Diode (D5803)-----------56

9.24. Disassembly of CD Mechanism Unit (BRS1C)---57

9.25. Disassembly of Rear Panel----------------------------59

9.26. Disassembly of Voltage Selector P.C.B.------------60

10 Replacement of Traverse Unit------------------------------62

10.1. Disassembly of Traver se Unit-------------------------62

10.2. Assembly of Traverse Unit-----------------------------64

10.3. Disassembly of CD Servo P.C.B.---------------------66

11 Service Position -------------------------------------------------69

11.1. Checking and Repairing of Main P.C.B. ------------ 69

11.2. Checking and Repairing of D-Amp P.C.B. ---------69

11.3. Checking and Repairing of Panel P.C.B.-----------69

11.4. Checking and Repairing of Jupiter P.C.B.----------70

11.5. Checking and Repairing of SMPS P.C.B.---------- 71

11.6. Checking and Repairing of CD Servo P.C.B.------72

12 Voltage & Waveform Chart-----------------------------------73

12.1. CD Servo P.C.B.------------------------------------------73

12.2. Main P.C.B. (1/3)-----------------------------------------74

12.3. Main P.C.B. (2/2)-----------------------------------------75

12.4. Main P.C.B. (3/3)-----------------------------------------76

12.5. Panel P.C.B.-----------------------------------------------76

12.6. Music Port P.C.B.-----------------------------------------77

12.7. Tuner P.C.B.-----------------------------------------------77

12.8. Jupiter P.C.B. (1/3)---------------------------------------78

12.9. Jupiter P.C.B. (2/3)---------------------------------------79

12.10. Jupiter P.C.B. (3/3)---------------------------------------80

12.11. D-Amp P.C.B. ---------------------------------------------80

12.12. SMPS P.C.B.----------------------------------------------81

12.13. Waveform Table ------------------------------------------82

13 Illustration of ICs, Transistor and Diode ----------------84 14 Simplified Block Diagram ------------------------------------85

14.1. Overall Simplified Block Diagram-------------------- 85

14.2. D-Amp Block Diagram---------------------------------- 86

15 Block Diagram--------------------------------------------------- 87

15.1. Servo & System Control------------------------------- 87

15.2. IC Terminal Chart---------------------------------------- 89

15.3. Audio-------------------------------------------------------- 90

15.4. Power Supply--------------------------------------------- 92

16 Wiring Connection Diagram -------------------------------- 94 17 Schematic Diagram-------------------------------------------- 95

17.1. Schematic Diagram Notes ---------------------------- 95

17.2. CD Servo Circuit ----------------------------------------- 97

17.3. Main Circuit------------------------------------------------ 99

17.4. Panel Circuit ---------------------------------------------107

17.5. Music Port Circuit---------------------------------------109

17.6. Remote Sensor, USB, Tuner & Voltage Selector Circuit------------------------------------------110

17.7. Jupiter Circuit --------------------------------------------111

17.8. D-Amp Circuit--------------------------------------------115

17.9. SMPS Circuit---------------------------------------------117

18 Printed Circuit Board-----------------------------------------119

18.1. CD Servo P.C.B.----------------------------------------119

18.2. Main P.C.B.-----------------------------------------------120

18.3. Panel P.C.B.----------------------------------------------121

18.4. Music Port, Remote Sensor, USB & Tuner P.C.B. ------------------------------------------------------122

18.5. Jupiter P.C.B.--------------------------------------------123

18.6. D-Amp P.C.B. -------------------------------------------124

18.7. SMPS & Voltage Selector (For PH Only) P.C.B. -----------------------------------------------------125

18.8. SMPS (For PN only) P.C.B.--------------------------126

19 Terminal Function of ICs------------------------------------127

19.1. IC2003 (RFKWMAKX72M0): IC MICROPROCESSOR -------------------------------------------127

19.2. IC6001(C0HBB0000057): IC FL Driver-----------128

20 Exploded View and Replacement Parts List----------129

20.1. Exploded View and Mechanical Replacement Parts List--------------------------------------------------129

20.2. Electrical Replacement Parts List ------------------135

1 Safety 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 1MΩ and 5.2MΩ. When the exposed metal does not have a return path to the chassis, the reading must be

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 1.5kΩ, 10 watts resistor, in parallel with a 0.15µF 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 Use (For PH only)

Be sure to disconnect the mains cord before adjusting the voltage selector. Use a minus(-) screwdriver to set the voltage selector (on the rear panel) to the voltage setting for the area in which the unit will be used. (If the power supply in your area is 110V ~ 127V or 220V ~ 240V, set to the “110V ~ 127V or 220V ~ 240V” position.) Note that this unit will be seriously damaged if this setti ng is not made correctly. (There is no voltage selector for some countries, the correct voltage is already set.)

1.3. Caution For Fuse Replacement

1.4. Before Repair and Adjustment

Disconnect AC power to discharge unit AC Capacitors as such (C5700, C5701, C5703, C5704, C5705, C5708) through a 10 Ω, 10 W resistor to ground.

Caution:

DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid st ate devices. After repairs are completed, restore power gradually using a variac, to avoid overcurrent. Current consumption at AC 110 V, 60 Hz in Power ON, FM Tuner, No Signal, Volume minimal mode should be ~ 500 mA. (PN) Current consumption at AC 110~127 V / 220~240 V, 50/60 Hz in Power ON, FM T uner, No Signal, Volume minimal mode should be

~ 500 mA. (PH)

1.5. 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. 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.

1.6. 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 Schematic Diagrams, 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 & Description Remarks

4 REXX1122 1P BLACK WIRE (VOLTAGE SELECTOR-SMPS) PH

5 REXX1123 1P RED WIRE (VOLTAGE SELECTOR-SMPS) PH

8 RGRX1008H-A REAR PANEL PN

8 RGRX1008J-A REAR PANEL PH

14 RKMX1011-K TOP CABINET

301 RAEX1033Z-V TRAVERSE ASS'Y

A2 K2CB2CB00021 AC CORD PN

A2 K2CQ2CA00007 AC CORD PH

A3 RQTX1295-M O/I BOOK (Sp/En) PN

A3 RQTX1296-M O/I BOOK (Sp) PH

PCB10 REPX0886D SMPS P.C.B. (RTL) PN

PCB10 REPX0886J SMPS P.C.B. (RTL) PH

PCB11 REPX0886J VOLTAGE SELECTOR P.C.B. (RTL) PH

DZ5701 ERZV10V511CS ZNR

S5701 K0ABCA000007 AC VOLTAGE SELECTOR PH

L5701 G0B612H00002 LINE FILTER PN

L5701 G0B932H00002 LINE FILTER PH

T5701 G4DYZ0000050 SWITCHING TRANSFORMER PN

T5701 G4DYZ0000051 SWITCHING TRANSFORMER PH

T5751 ETS19AB2E6AG SUB TRANSFORMER

T6000 G4DYA0000214 SWITCHING TRANSFORMER

PC5701 B3PBA0000503 PHOTO COUPLER

PC5702 B3PBA0000503 PHOTO COUPLER

PC5720 B3PBA0000503 PHOTO COUPLER

PC5799 B3PBA0000503 PHOTO COUPLER

F1 K5D802APA008 FUSE PN

F1 K5D802BNA005 FUSE PH

TH5702 D4CAA2R20001 THERMISTOR

TH5860 D4CC11040013 THERMISTOR

P5701 K2AA2B000011 AC INLET PH

P5701 K2AB2B000007 AC INLET PN

R5708 ERJ8GEYJ155V 1.5M 1/4W

R5709 ERJ8GEYJ155V 1.5M 1/4W

C5700 F1BAF471A013 470pF

C5701 F0CAF104A105 0.1uF

C5703 F0CAF224A105 0.22uF

C5704 F1BAF471A013 470pF

C5705 F1BAF471A013 470pF

C5708 F1BAF1020020 1000pF

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 da mage 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 electrical assembly equipped with ES devices, p lace the assembly on a cond ucti ve surface su ch as a luminum 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 lif ting of your foot from a carpeted floor can generate static electricity (ESD) suf-

ficient to damage an ES device).

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 pickup: 100 µW/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.

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 process of all electrical compone nts on the printed circuit boards 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 mainl y consists of tin (Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) 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 pu t 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 the normal lead solder, it takes the longer time to melt the lead free solder.

• Use the soldering iron (more than 70W) equi pped with the temperature co ntrol after setting the temp erature at 350±30 degrees C (662±86°F).

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%

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 b ody. 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 un it may be damaged due to electrostatic discharge generating 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 unit 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.

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.

3 Service 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 wil l be fol lowed by supplemen t service manual to be filed with original se rvice 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 (RFKWMAKX72M0)

• Speaker System:

1) This model uses Speaker System, SB-AKX72PN-K.

4 Specifications

Q AMPLIFIER SECTION RMS output power stereo mode

Front Hi (both ch driven)

145 W per channel (5 Ω), 1 kHz, 10% THD

Front Lo (both ch driven)

180 W per channel (4 Ω), 1 kHz, 10% THD Subwoofer Ch 250 W per channel (8 Ω), 100 kHz, 10% THD Total RMS stereo mode power 900 W

Q FM/AM TUNER, TERMINALS SECTION Preset station FM 30 stations AM 15 stations Frequency Modulation (FM)

Frequency range For PH only 87.50 to 108.00 MHz (50 kHz step) For PN only 87.9 to 107.9 MHz (200 kHz step)

87.5 to 108.0 MHz (100 kHz step)

Antenna terminal (s) 75 Ω (unbalanced) Amplitude Modulation (AM)

Frequency range For PH only 522 to 1629 kHz (9 kHz step)

520 to 1630 kHz (10 kHz step)

For PN only 520 to 1710 kHZ (10 kHz step)

AUX Input RCA pin jack Music port (front)

Sensitivity 100 mV, 4.7 kΩ Terminal Stereo, 3.5 mm jack

Q GENERAL

Power supply

For PH only AC 110 to 127 V/ 220 to 240 V, 50/60 Hz For PN only AC 120 V, 60 Hz

Power Consumption

For PH only 126 W For PN only 123 W

Dimensions (W x H x D) 220 mm x 334 mm x 249 mm Mass 3.2 kg Operating temperature range 0 °C to +40 °C Operating humidity range 35% to 80% RH

(no condensation)

Power Consumption in st andby mode

For PH only 0.3 W (Approximate) For PN only 0.2 W (Approximate)

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.

Q System: SC-AKX72PH-K

Main Unit: SA-AKX72PH-K

Front Speakers: SB-AKX72PN-K

Q System: SC-AKX72PN-K

Main Unit: SA-AKX72PN-K

Front Speakers: SB-AKX72PN-K

Q DISC SECTION Discs played (8 cm or 12 cm)

(1) CD-Audio (CD-DA) (2) CD-R/RW (CD-DA, MP3* formatted disc) (3) MP3* *MPEG-1 layer 3

Pick up

Wavelength 790 nm(CD)

Audio output (Disc)

Number of channels 2.1 (FL, FR) FL = Front left channel FR = Front right channel

Q USB SECTION USB Port

USB standard USB 2.0 full speed Media file format support MP3 (*.mp3) USB device file system FAT12, FAT16, FAT32 USB Port power 500 mA (max) Bit Rate 16 kbps to 320 kbps (playback)

USB recording

Bit Rate 128 kbps, 192 kbps, 320 kbps USB recording speed 1x,4x (CD only) recording file format MP3 (*.mp3)

Q INTERNAL MEMORY SECTION Memory

Memory size 2 GB Memory File format MP3 (*.mp3)

Memory recording

Bit Rate 128 kbps, 192 kbps, 320 kbps Memory Recording speed 1x,4x, (CD only) Recording file format MP3 (*.mp3) Capacity of total song recoreded 510 song (Use 128 kbps, approximately 1 song = 4 mins)

5 Location of Controls and Components

5.1. Main Unit Key Button Operation

5.2. Remote Control Key Button Operation

5.3. Media Information

Note on CDs

 This system can access up to 99 tracks.  This system can play MP3 files and CD-DA format audio CD-R/RW

that have been finalized.

 This system can fail to play some CD-R/RW because of the

condition of the recording.

Note on MP3s

 Files are treated as tracks and folders are treated as albums.  This unit can access up to 999 tracks, 255 albums and 20 sessions.  Disc must conform to ISO9660 level 1 or 2 (except for extended

formats).

 To play in a certain order, prefix the folder and file names with 3-digit

numbers in the order you want them to play.

Limitations on MP3 playback

 If you have recorded MP3s on the same disc as CD-DA, only the

format recorded in the first session can be played.

 Some MP3s cannot be played because of the condition of the disc

or recording.

 Recordings will not necessarily be played in the order you recorded

them.

6 Self-Diagnostic and Special Mode Setting

6.1. Cold-Start

Here is the procedure to carry out cold-start or initialize to shipping mode.

1. Unplug AC power cord

2. Press & hold [POWER] button

3. Plug AC power cord while [POWER] button being pressed FL Display will show “_ _ _ _ _ _ _ _”

4. Release [POWER] button

6.2. Doctor Mode Table

6.2.1. Doctor Mode Table 1

Doctor Mode

Micro-P Version Display

Item

DescriptionMode Name

To enter into Doctor Mode

To check the firmware version for Jupiter & Microprocessor IC.

Display 1 will display for 2 secs, followed by display 2.

Display 1:

Display 2:

FL Display

Key Operation

Front Key

1.In CD Mode: Press [ ] button on main unit follow by [4] and [7] on remote control.

2.To exit, press [OK] button on remote control or press [POWER, /I] button on main unit or remote control.

In Doctor Mode:

1.Press [2] button on remote control.

Jupiter Micro-P Version

Micro-processor

Version

6.2.2. Doctor Mode Table 2

Cold Start

Volume Setting

Check

FL Display

Check

CD Open

Check

BRS1C Reliability Test (Traverse)

Item

DescriptionMode Name

To active cold start upon next AC power up when reset start is execute the next time.

To check the volume setting of a main unit.

To check the FL segment display All segment will light up while all LED blink at 0.5s,intervals.(if any)

To excute CD Open operation.

To determine CD Mechanism BRS1C Access Inner & Outer disc operation.

In this mode,ensure the CD is in the main unit.

Note: Refer to Section 6.3 Fig 2. for process flow.

FL Display

Press [7]: VOL50 Press [8]: VOL35 Press [9]: VOL0 Press [PLAY/RADIO MODE]: VOL30

The counter will increment by one. When reach 9999 will change to 0000

Cancellation Display

Volume

Key Operation

Front Key

In Doctor Mode:

1. Press [DISPLAY/-DIMMER] button on remote control.

In Doctor Mode:

1. Press [7],[8],[9], [PLAY MENU/RADIO MENU] button on remote control.

In Doctor mode:

1. Press [1] button on remote control.

In Doctor mode:

1. Press [DEL] button on remote control.

In Doctor Mode:

1. Press [10] [1] [2] button on remote control.

2. To cancel, press [0] on remote control.

BRS1C Reliability Test (Combination)

BRS1C Reliability Test (Loading)

To determine CD Mechanism Unit (BRS1C) Open/Close & Access Inner & Outer Disc Operation.

In this mode,ensure the CD is in the main unit.

Note: Refer to Section 6.3 Fig 3. for process flow.

To determine CD Mechanism Unit (BRS1C) Open/Close operation.

In this mode, the tray will open & close.

Note: Refer to Section 6.3 Fig 1 for process flow.

In Doctor Mode:

1. Press [10] [1] [5] button on remote control.

The counter will increment by one. When reach 9999 will change to 0000

Cancellation Display

2. To cancel, press [0] on remote control.

In Doctor Mode:

1. Press [10] [2] [1] button on remote control.

The counter will increment by one. When reach 9999 will change to 0000

Cancellation Display

2. To cancel, press [0] on remote control.

6.3. Reliability Test Mode (CD Mechanism Unit (BRS1C))

Below is the process flow chart of the aging test for the CD Mechanism Unit (BRS1C).

OPEN Operation

OPEN wait fot 1 s

CLOSE Operation

CLOSE wait for 4s

Fig. 1. Reliability Test (Loading)

Count up

First Track

Access

First Track

Play 10 s

First Track

Access

First Track

Play 5 s

Last Track

Access

Last Track

Play 5 s

Fig. 2. Reliability Test (Traverse)

Count up

Last Track

Access

Last Track

Play 10 s

Open

Operation

Open wait

for 1 s

Operation

Fig. 3. Reliability Test (Combination)

Count up

6.4. Self-Diagnostic Mode

Service Mode

Error Code History

Software Display Version.

To enter into Service Mode

Checking the records for Error Code. If there’s no error code.Display will

remain as [T ]

To check for following:

1)System Version.

2)Jupiter Micro-processor Version.

In CD Mode:

1.Press and hold [ ] button on main unit for 2 secs.

2.Do not release [ ] button, press and hold [ / ] on the remote control for 2 secs.

3.To exit, press [POWER, ] button on main unit.

In Service Mode:

1.Press button [1] on remote control.

2.To clear history,press & hold [0] for 5 seconds or more

In Service Mode:

1.Press button [2] on remote control.

2.Press button [2] on remote control.

Display of AD value of main body key

USB Error Code History

3) Opecon Version.

To check the AD input value In Service Mode:

XX: AN2 input value (2 hexadecimal value digits) --> KEY1 YY: AN3 input value (2 hexadecimal value digits) --> KEY2 ZZ: AN4 input value (2 hexadecimal value digits) --> KEY3

To check for USB error Codes.

History number

3.Press button [2] button on remote control.

1.Press button [ 4 ] on remote control for 2 secs.

AN4AN3AN2

In Service Mode:

1.Press button [5] on remote control.

2.To clear history,press & hold [0] for 5 seconds or more.

6.5. Self-Diagnostic Error Code Table

Self-Diagnostic Function (Refer Section 6.4. Self-Diagnostic Mode) provides information on any problems occurring for the unit and its respective components by displaying the error codes. These error code such as U**, H** and F** are stored in memory and held unless it is cleared. The error code is automatically display after entering into self-diagnostic mode.

6.5.1. Power Supply Error Code Table

6.5.2. CD Mechanism Error Code Table (CD Mechanism Unit (BRS1C))

Error Code Diagnostic Contents Description of error Automatic FL Display Remarks

CD H15 CD Open Abnormal During operation

CD H16 CD Closing Abnormal During operation

F26 Communication between

CD servo LSI and micro-p abnormal.

POS_SW_R On fail to be detected with 4 sec. Error No. shall be clear by force or during cold start.

POS_SW_CEN On fail to be detected with 4 sec. Error No. shall be clear by force or during cold start.

During switch to CD function, if SENSE = “L” within failsafe time of 20ms.

Press [ next error.

] on main unit for

6.6. Sales Demonstration Lock Function

6.6.1. Entering into sales Demo Mode

Here is the procedures to enter into Sales Demonstration Lock. Step 1: Turn on the unit. Step 2: Select to any mode function, press and hold [ Step 3: Hold both [ Step 4: The display will show upon entering into this mode.

OPEN/CLOSE] and [ / ] keys for 5 sec.

OPEN/CLOSE] key and follow by [ / ] key pressed within 0.5 sec.

Note: [

OPEN/CLOSE] button is invalid and the main unit displays “LOCKED” while the lock function mode is entered.

6.6.2. Cancellation

Step 1: To cancel only can be triggered in CD Mode and Volume 19. Step 2: Select to any mode function, press and hold [ Step 3: Hold both [ Step 4: The display will show after exit from this mode.

OPEN/CLOSE] and [ / ] keys for 5 sec.

OPEN/CLOSE] key and follow by [ / ] key pressed within 0.5 sec.

7 Troubleshooting Guide

7.1. Troubleshooting Guide for F61 and/ or F76

This section illustrates the checking procedures when upon detectin g th e error of “F61” and “F76” after power up of the unit.It is for purpose of troubleshooting and checking in SMPS,D-Amp & Main P.C.B..

Symptom Remarks

Set cannot ON 1 AC Cord 1 Faulty AC Cord, Loose connection

2 AC Inlet, P5701 2 P5701 solder crack, dry joint. 3 Fuse, F1 3 Fuse, F1 Open 4 Photocoupler 4 PC5702/PC5799 solder crack.

PC5702, PC5799 Dry joint, short circuit, open circuit.

5 Switching Regulator

IC, IC5701

6 Switching Regulator

IC, IC5799 Set can ON 1 Speaker Output 1a Faulty speaker unit, Loose connection, Short. then F61

2 D-AMP circuit

Set can ON 1 Transformer T5701 1a Short circuit between Pin 14 and Pin 15. then F76 1b Short circuit between Pin 15 and Pin 16.

2 DC-DC Circuit 2a Check cable wire connection between connector

5 IC5701 Faulty.

6 IC5799 Faulty.

1b Check output IC (Pin 10 & 14) which have DC Voltage

at speaker output short to Vdd/Vss.

2a D-Amp IC5000, IC5200, IC5400 defective.

Check PWM output at pin 10, 14 of D-Amp IC. Check + VDD/SS supply at pin 4 & 20 of D-Amp IC. Check pin 1 (OSC) & pin 23 (MODE) of D-Amp IC.

Check pattern crack and solderability.

1c Short circuit between Pin 16 and Pin 17.

ZJ2007(At Main P.C.B) & connector CN5802

(At SMPS P.C.B)

2b Voltage Regulator IC (IC2010) & Switching Regulator

IC (IC2011) faulty.

Possible Fault(s)Checking Items

Refer to section 7.2.1 Fig.1 SMPS P.C.B..

Refer to section

7.2.3 Fig 3 D-Amp P.C.B..

Refer to section 7.2.1 Fig.1 SMPS P.C.B..

Refer to section 7.2.2 Fig.2 Main P.C.B..

3 Photocoupler 3 PC5720 solder crack.

Set can ON 1 Rectifier Diode D5801 1a Improper contact between D5801 to Heatsink working normally Rectifier Diode D5802 for some time 2 Thermistor TH5860 1b Set trigger temperature protection. then F76

PC5720 dry joint, short circuit, open circuit.

Improper contact between D5802 to Heatsink

Refer to section 7.2.1 Fig.1 SMPS P.C.B..

7.2. Part Location

7.2.1. SMPS P.C.B.

Switching Regulator IC: IC5701

AC Inlet: P5701

Switching Regulator IC: IC5799

Thermistor: TH5860

Fuse: F1

Photocoupler: PC5702, PC5799

Transformer: T5701

Rectifier Diode: D5801, D5802

Connector: CN5802

Photocoupler: PC5720

Fig. 1 SMPS P.C.B.

7.2.2. Main P.C.B.

Voltage Regulator IC: IC2010

DC/DC Converter IC: IC2011

Connector: ZJ2007

Fig. 2 Main P.C.B.

7.2.3. D-Amp P.C.B.

Audio Digital Amp IC: IC5000

Audio Digital Amp IC: IC5400

Audio Digital Amp IC: IC5200

Fig. 3 D-Amp P.C.B.

7.3. D-Amp IC Operation & Control

D-AMP IC Operation & Control

1) D-AMP IC (C1AB00000497) was used for this model.

2) Three control pins (signal send from micro-processor IC) were used to control the D-AMP IC operation such as muting, standby and normal operation. They are described as below: -

No Pin no Signal name Function

1 4 F_HOP Frequency Hop control. 2 6 MODE_DA Digita l Amp On/Off control. 3 3 MUTE_F Digital Amp Muting control

Table 1: Digital AMP Pin Control.

Here is detailed description of the three control pins for the D-AMP IC

A) MODE_DA & MUTE_F were used to switch the D-AMP IC in the following muting status:

x L(Low/OFF): Standby / OFF x H (High/ON): Operating or Mute

Below is the logic for the two pins used for the control of the D-AMP IC.

No MODE_DA MUTE_F Digital AMP IC mode status 1 L X OFF (0V) 2 H H Mute (2.5V) 3 H L Operating(5V)

Table 2: Digital AMP IC Mode Status.

Note: Standby/OFF condition of D.AMP IC is available / activated only during the following event: Switching of Frequency Hoping, power off and start up (when the unit is undergoing the transition from standby to normal operation mode)

B) F_HOP is used to control the D-AMP operation to avoid interference with AM source by controlling the frequency source used. It will switch from one frequency to the other, depending on the tuned AM frequency.

For 9 KHz Step

AM Band Frequency F_HOP Switching Frequency

522 ~ 558 L 301 567 ~ 639 H 350 648 ~ 855 L 301 864 ~ 945 H 350

954 ~ 1152 L 301 1161 ~ 1242 H 350 1251 ~ 1449 L 301 1458 ~ 1539 H 350 1548 ~ 1629 L 301

Table 3: F_HOP Control during 9 kHz Step

For 10 KHz Step

AM Band Frequency F_HOP Switching Frequency

520 ~ 560 L 301

570 ~640 H 350 650 ~ 860 L 301 870 ~ 950 H 350

960 ~ 1160 L 301

1170 ~ 1250 H 350 1260 ~ 1450 L 301 1460 ~ 1540 H 350 1550 ~ 1710 L 301

Table 4: F_HOP Control during 10 kHz Step

Note: During activating, the 3 control pins namely MUTE_F, MUTE_A and MODE_DA must be used to cover the “Pop” sound cause by F-HOP switching.

8 Service Fixture & Tools

8.1. Service Tools and Equipment

Prepare service tools before process service position.

Service Tools Remarks

Main P.C.B. (ZJ2007) - SMPS P.C.B. (CN5802) REXX1206 (15P Cable Wire)

9 Disassembly and Assembly Instructions

• Illustration is based on SA-AKX72PH-K

Caution Note:

• This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main compo-

nents for the unit. (You may refer to the section of “Main components and P.C.B Locations” as described in the service manual)

• Before carrying out the disassembly process, please ensure all the safety precautions & procedures are followed.

• During the disassembly and/or assembly process, please handle with care as there may be chassis components with sharp edges.

• Avoid touching heatsinks due to its high temperature after prolong use. (See caution as described below)

• During disassembly and assembly, please ensure proper service tools, equipments or jigs is being used.

• During replacement of component parts, please refer to the section of “Replacement Parts List” as described in the service manual.

• Select items from the following indexes when disassembly or replacement are required.

• Disassembly of Top Cabinet

• Disassembly of Tuner P.C.B.

• Disassembly of Front Panel Unit

• Disassembly of Panel P.C.B.

• Disassembly of Remote Sensor P.C.B.

• Disassembly of Jupiter P.C.B.

• Disassembly of USB P.C.B.

• Disassembly of Music Port P.C.B.

• Disassembly of CD Lid

• Disassembly of Main P.C.B.

• Replacement of Voltage Regulator IC (IC2010)

• Disassembly of D-Amp P.C.B.

• Replacement of Audio Digital Amp IC (IC5000)

• Replacement of Audio Digital Amp IC (IC5400)

• Replacement of Audio Digital Amp IC (IC5200)

• Disassembly of SMPS P.C.B.

• Replacement of Switching Regulator IC (IC5701)

• Replacement of Rectifier Diode (D5702)

• Replacement of Rectifier Diode (D5801)

• Replacement of Rectifier Diode (D5802)

• Replacement of Rectifier Diode (D5803)

• Disassembly of CD Mechanism Unit (BRS1C)

• Disassembly of Rear Panel

• Disassembly of Voltage Selector P.C.B.

+ 118 hidden pages