PANASONIC SA-PMX2E Service Manual

CD Stereo System

SA-PMX2E SA-PMX2EG

Colour

(S)... Silver Type

ORDER NO. MD0703029CE

Specification

n Amplifier Section

RMS OUTPUT POWER both channel driven simultaneously

10% Total harmonic distortion 80 W per channel (4 Ω)

Input Impedance

MUSIC PORT 250 mV 13 kΩ

Output Impedance

HEADPHONE 16 to 32 Ω

Phone jack

Terminal Stereo, 3.5 mm

Music port input jack

Terminal Stereo, 3.5 mm

n FM Tuner Section

Frequency range 87.50 MHz to 108.00 MHz

(50 kHz step)

Sensitivity 10 dBµV (IHF)

S/N 30 dB 10 dBµV

ntenna terminal(s) 75 Ω (unbalanced)

Preset station FM 20 stations

AM 15 stations

n AM Tuner Section

Frequency range 522 to 1629 kHz (9kHz step)

520 to 1630 kHz (10kHz step)

Sensitivity

S/N 20 dB (at 999 kHz) 1778 µV/m

n CD Section

Disc played [8 cm or 12 cm]

(1) CD-Audio (CD-DA)

(2) CD-R/RW (CD-DA, MP3 formatted disc)

(3) MP3

Sampling frequency

CD 44.1 kHz

MP3 32 kHz, 44.1 kHz, 48 kHz

Bit rate

MP3 32 kbps to 384 kbps

Decoding 16/20/24 bit linear

Pickup

Beam source Semiconductor laser

Wavelength 785 nm

Laser power CLASS 1

udio output (Disc)

Number of channels 2 Channel

Frequency response 20 Hz to 20 kHz (+1, -2 dB)

Wow and flutter Below measurable limit

Digital filter 8fs

D/A converter MASH (1 bit DAC)

n USB section

Playable USB Storage Media

(1) HDD

(2) USB MP3 player/Digital audio player

(3) USB Thumbdrives

Supported audio file format

MP3

SA-PMX2E / SA-PMX2EG

USB memory port

Maximum current 500mA

Bit rate

MP3 32 kbps to 320 kbps

udio output (MP3)

Number of channels 2 channel

Frequency response (MP3) 20 Hz to 20 kHz

n General

Power supply AC 230 V, 50 Hz

Power consumption 80 W

Dimensions (W x H x D) 174 mm x 244 mm x 318 mm

Mass 4.6 kg

Operating temperature range +5 to +35°C

Operating humidity range 5 to 90% RH (no condensation)

Power consumption in standby mode 0.5 W (approx.)

Notes :

1. Specifications are subject to change without notices. Mass and dimensions are approximate.

2. Total harmonic distortion is measured by the digital spectrum analyzer.

n System : SC-PMX2E-S

n System : SC-PMX2EG-S

Music center: SA-PMX2E-S

Speaker: SB-PMX2EG-M

Music center: SA-PMX2EG-S

Speaker: SB-PMX2EG-M

CONTENTS

Page Page

1 Safety Precautions

1.1. GENERAL GUIDELINES

1.2. Before Repair and Adjustment

1.3. Protection Circuitry

1.4. Safety Part Information

2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices

3 Precaution of Laser Diode

4 Handling Precautions For Traverse Deck

5 Handling the Lead free Solder

5.1. General description about Lead Free Solder (PbF)

6 Accessories

7 Operation Procedures

7.1. Main Unit Key Buttons Operation

7.2. Remote Control Key Buttons Operation

7.3. Disc Information

8 Self diagnosis and special mode setting

8.1. Service Mode Summary Table

8.2. Service Mode Table

8.3. Error Code Table

9 Assembling and Disassembling

9.1. Caution

9.2. Disassembly flow chart

9.3. Main Parts Location Diagram

9.4. Disassembly of Top Panel Unit

9.5. Disassembly of D-Port P.C.B

9.6. Disassembly of USB P.C.B

9.7. Disassembly of Front Panel

9.8. Disassembly of Music Port P.C.B

9.9. Disassembly of FL, Switch & Headphone P.C.B

9.10. Disassembly of Rear Cabinet

9.11. Disassembly of Main P.C.B

9.12. Disassembly of Inner Chassis

9.13. Disassembly of CD Mechanism Unit

9.14. Disassembly of Transformer P.C.B.

9.15. Disassembly of Tuner Extent P.C.B.

9.16. Replacement of the Power IC

9.17. Disassembly of Traverse Unit, Driving Gear, and Cam

Gear

10 Service Positions

10.1. Check and Repair of Transformer P.C.B.

10.2. Check and Repair of D-Port P.C.B.

10.3. Check and Repair of FL, Switch, Headphone and Music

Port P.C.B.

10.4. Check and Repair of Main P.C.B.

10.5. Checking and Repairing of CD Servo P.C.B.

10.6. Check and Repair of USB P.C.B (Side B).

11 Voltage Measurement & Waveform Chart

11.1. Voltage Measurement

11.2. Waveform Chart

12 Wiring Connection Diagram

13 Block Diagram

13.1. CD SERVO/ OPTICAL PICKUP UNIT

13.2. MAIN(1/2)/ TUNER EXTENT/ PANEL/ SWITCH/

HEADPHONE/ D-PORT

13.3. MAIN(2/2)/ USB MODULE/ MUSIC PORT/

TRANSFORMER

14 Notes of Schematic Diagram

15 Schematic Diagram

15.1. CD SERVO CIRCUIT

15.2. MAIN CIRCUIT

15.3. TUNER EXTENT CIRCUIT, D-PORT CIRCUIT, MUSIC

PORT CIRCUIT and HEADPHONE CIRCUIT

15.4. PANEL CIRCUIT

SA-PMX2E / SA-PMX2EG

15.5. SWITCH CIRCUIT 65

15.6. USB CIRCUIT

15.7. TRANSFORMER CIRCUIT

16 Printed Circuit Board Diagrams

16.1. CD SERVO P.C.B and TUNER EXTENT P.C.B

16.2. MAIN P.C.B

16.3. PANEL P.C.B, D-PORT P.C.B, SWITCH P.C.B, MUSIC

PORT P.C.B and HEADPHONE P.C.B

16.4. TRANSFORMER P.C.B and USB P.C.B

17 Illustration of IC 痴, Transistors and Diodes

18 Terminal Function of IC's

18.1. IC800 (C2CBYY000422) IC MICROPROCESSOR

18.2. IC7001 (MN6627954MA) IC SERVO

PROCESSOR/DIGITAL SIGNAL PROCESSOR/DIGITAL

FILTER D/A CONVERTER

18.3. IC7002 (BA5948FPE2) IC 4CH Drive

19 Exploded Views

19.1. Cabinet Parts Location

19.2. CD Loading Mechanism Parts Location

19.3. Packaging

20 Replacement Parts List

SA-PMX2E / SA-PMX2EG

1 Safety Precautions

1.1. GENERAL GUIDELINES

1. When 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, ensure that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

3. After servicing, check for leakage current checks to prevent 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. Using an ohmmeter measure the resistance value, between the jumpered AC plug and each exposed metallic cabine t part on the equipment such as screwheads, connectors, control shafts, etc. When the expose d metallic part has a return path to the chassis, the reading should be between 1MΩ and 5.2Ω. When the exposed metal does not have a return path to the chassis, the reading must be

1.1.2. LEAKAGE CURRENT HOT CHECK (See Figure 1.)

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. The 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. should the measurement is outside of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and re-checked before it is returned to the customer.

Figure. 1

SA-PMX2E / SA-PMX2EG

1.2. Before Repair and Adjustment

Disconnect AC power, discharge Power Supply Capacitors C500, C501, C513, C625, C626, C633, C634 and C951 through a 10Ω, 1W resistor to ground.

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 230V, 50 Hz in NO SIGNAL mode (volume min) should be ~300 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.

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. Safety Part Information

Safety Parts List:

There are special components used in this equipment which are important for safety.These parts are marked by Schematic Diagrams & 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.

Table 1

Reference No. Part No. Part Name & Description Remarks

A2 K2CQ2CA00002 AC CORD [M] F1 K5D102BLA013 FUSE [M]

JK600 K2AA2B000015 AC INLET [M]

T600 G4CYAYY00137 SUB TRANSFORMER [M] T601 G4CYAYY00150 TRANSFORMER [M] L600 ELF15N035AN LINE FILTER [M]

RL600 K6B1ADA00011 RELAY [M]

Z600 ERZV10V511CS ZENER [M] FP600 K5G202A00044 FUSE PROTECT OR [M] FP601 K5G102A00039 FUSE PROTECT OR [M] FP602 K5G702Z00004 FUSE PROTECTOR [M] FP603 K5G702Z00004 FUSE PROTECTOR [M] FP604 K5G402A00025 FUSE PROTECT OR [M]

in the

SA-PMX2E / SA-PMX2EG

2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by 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 damage caused by electro static discharge (ESD).

1. Immediately before handlin g any semiconductor component or semiconductor-equiped 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 equiped with ES devices, place the assembly on a conductive surface such as aluminium foil, to prevent electrostatic charge build up 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 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, aluminium 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 installe d.

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) sufficient to damage an ES device).

SA-PMX2E / SA-PMX2EG

3 Precaution of Laser Diode

Caution :

This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick up lens. Wavelength : 780 nm Maximum output radiation power from pick up : 100 µW/VDE Laser radiation from pick up unit is safety level, but be sure the followings:

1. Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous.

2. Do not adjust the variable resistor on the pick up unit. It was already adjusted.

3. Do not look at the focus lens using optical instruments.

4. Recommend not to look at pick up lens for a long time.

ACHTUNG :

Dieses Produkt enthält eine Laserdiode. Im eingeschalteten Zustand wird unsichtbare Laserstrahlung von der Lasereinheit abgestrahlt. Wellenlänge : 780nm Maximale Strahlungsleistung der Lasereinheit :100 µW/VDE Die Strahlung an der Lasereinheit ist ungefährlich, wenn folgend e Punkte beachtet werden:

1. Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode gefährlich ist.

2. Den werkseitig justierten Einstellregler der Lasereinhit nicht verstellen.

3. Nicht mit optischen Instrumenten in die Fokussierlinse blicken.

4. Nicht über längere Zeit in die Fokussierlinse blicken.

ADVARSEL :

I dette a apparat anvendes laser.

CAUTION!

THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

n Use of Caution Labels

SA-PMX2E / SA-PMX2EG

4 Handling Precautions For Traverse Deck

The laser diode in the traverse deck (optical pickup) may break down due to potent ial difference caused by static electricity of clothes or human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).

· Handling of traverse deck (optical pickup)

1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electrical shock.

2. To prevent the breakdown of the laser diode, an antistatic shorting pin is inserted into the flexible board (FFC board).

3. Take care not to apply excessive stress to the flexible board (FFC board). When removing or connecting the short pin, finish

the job in as short time as possible. (Fig 4.1)

4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted.

· Grounding for electrostatic breakdown prevention

1. Work table grounding. (Fig 4.2)

Use the anti-static wrist strap to discharge the static electricity from your body.

2. Work table grounding. (Fig 4.2)

Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is place, and ground the sheet.

Caution:

The static electricity of your clothes will not be grounded through the wrist strap. So, take care not to let your clothes touch the traverse deck (optical pickup).

Caution when replacing the Traverse Deck

The traverse deck has a short point shorted with solder to protect the laser diode against electrostatics breakdown. Be sure to remove the solder from the short point before making connections.

(Fig 4.1)

(Fig 4.2)

SA-PMX2E / SA-PMX2EG

5 Handling the Lead free Solder

5.1. General description about Lead Free Solder (PbF)

The lead free solder has been used in the mounting process of all electrical components 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 mainly 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 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 the 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 control after setting the temperature 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%

SA-PMX2E / SA-PMX2EG

6 Accessories

Note : Refer to Packing Materials & Accessories Parts List (Section 20) for the part number.

Remote Control

AC Cord

FM Antenna

AM Loop Antenna

Wire

7 Operation Procedures

7.1. Main Unit Key Buttons Operation

SA-PMX2E / SA-PMX2EG

7.2. Remote Control Key Buttons Operation

7.3. Disc Information

SA-PMX2E / SA-PMX2EG

8 Self diagnosis and special mode setting

This unit is equipped with features of self-diagnostic & special mode setting for checking the functions & reliability.

Special Note : Checking of the reliability (ageing) & changer operation must be carry out to ensure good working condition in unit.

8.1. Service Mode Summary Table

The service modes can be activated by pressing various button combination on the main unit and remote control unit.Below is the summary for the various modes for checking:

Player buttons Remote control unit buttons Application Note

[STOP] [4], [7] Entering into doctor mode (Refer to section .8.2.1. service mode

[STOP]+

[H.BASS]

Mode Remote control unit buttons Application Note

In Doctor Mode [DIMMER] FL ALL Segment inspection (Refer to section .8.2. service mode Table

-- Self-diagnostic mode (Refer to section .8.2.1. service mode

[MUSIC PORT] Tuner Check (Refer to section .8.2. service mode Table

[6] CD Open Test (Refer to section .8.2. service mode Table

[7] Volume 50 setting check (Refer to section .8.2. service mode Table

[8] Volume 29 setting check (Refer to section .8.2. service mode Table

[9] Volume 0 setting check (Refer to section .8.2. service mode Table

[ ], [1], [1] CD Loading Test Mode (Refer to section .8.2. service mode Table

[ ], [1], [2] CD Traverse Unit Test Mode (Refer to section .8.2. service mode Table

[ ], [1], [3] CD Combination Test Mode (Refer to section .8.2. service mode Table

[ ], [1], [4] CD Auto Adjustment Display (Refer to section .8.2. service mode Table

[SLEEP] Cold Start (Refer to section .8.2. service mode Table

[PROGRAM] MP3 Test (Refer to section .8.2. service mode Table

[2] USB Test (Refer to section .8.2. service mode Table

Table 1 for more information.)

1 & 2 for more information.)

8.2. Service Mode Table

Below is the various special modes for checking:-

8.2.1. Service Mode Table 1

Item FL Display Key Operation

Mode Name Description Front Key

Self -Diagnostic

Mode

To enter into self diagnostic checking for main unit.

1. Select [CD] for DISC mode (Ensure no disc

2. Press and hold [

To exit, press remote control.

is inserted).

]button for 2

seconds follow by [H.BASS].

button on main unit or

SA-PMX2E / SA-PMX2EG

Item FL Display Key Operation

Mode Name Description Front Key

Doctor Mode To enter into Doctor

Mode for checking of various items and displaying EEPROM and firmware version.

Note: The microprocessor version as shown is an example. It will be revise when there is an updates.

FL Display sequenceDisplay 1 → 2

(a) If there is NO EEPROM header string OR

(b) If there is no EEPROM ( no date is received by micro-processor) [NO] is displayed.

(Display 1)

Checksum : (Condition 1)

Checksum : (Condition 2)

In any mode:

1. Press [ by [4] and [7] on remote control.

To exit Doctor Mode, press main unit or remote control.

] button on main unit follow

button on

If the version of the EEPROM does not match or not working properly [NG] is display.

Checksum : (Condition 3)

If the EEPROM version matches, checksum [YYYY] is displayed.

(Display 2)

The Check Sum of EEPROM and firmware version will be display for 2 sec.

8.2.2. Service Mode Table 2

Item FL Display Key Operation

Mode Name Description Front Key

FL Display Test To check the FL

Tuner Check To Inspect Tuner Check

CD Open Test Mode

segments display (All segments will light up)

(For more information, refer to section 8.2.3)

To check on the CD Open function.

In doctor mode:

1. Press [DIMMER] button on remote control.

To cancel, press [0] button on remote control. To exit Doctor Mode, press [ENTER] button on remote control or remote control.

In doctor mode:

1. Press [MUSIC PORT] button on remote

To exit Doctor Mode, press main unit or remote control.

In doctor mode:

1. Press [6] button on remote control.

To exit Doctor Mode, press [ENTER] button on remote control or remote control.

button on main unit or

control.

button on

button on main unit or

Item FL Display Key Operation

Mode Name Description Front Key

Volume Setting Mode

To check for the volume setting of the main unit. The volume will be automatically set to its respective level (in dB).

Display 1 In doctor mode:

1. Press [7] button on remote control. To exit Doctor Mode, press [ENTER] button on remote control or

remote control. During this mode, treble/bass/EQ will be set to ‘0’dB & OFF.

Display 1 In doctor mode:

2. Press [8] button on remote control.

To exit Doctor Mode, press [ENTER] button on

remote control or

remote control.

SA-PMX2E / SA-PMX2EG

button on main unit or

CD Loading Test Mode

CD Traverse Unit Test Mode

CD Combination Test Mode

To determine the reliability of CD Loading Unit.

To check for the open/close operation for the CD loading unit. It fails when there is abnormality in opening or closing. (For more information, refer to section 8.2.4)

To check for the traverse unit operation. In this mode, the first & lost track is access & read (TOC). It fails when TOC is not completed by IDS or the traverse is out of focus. (For more information, refer to section 8.2.5)

A combination of CD loading & Traverse unit test. (For more information, refer to section 8.2.6)

Display 1 In doctor mode:

3. Press [9] button on remote control.

To exit Doctor Mode, press [ENTER] button on

remote control or

remote control.

In doctor Mode:

1. Press [ control.

To cancel, press [0] button on remote control. To exit Doctor Mode, press main unit or remote control.

In doctor Mode:

1. Press [ control.

To cancel, press [0] button on remote control. To exit Doctor Mode, press main unit or remote control.

In doctor Mode:

1. Press [ control.

To cancel, press [0] button on remote control. To exit Doctor Mode, press main unit or remote control.

button on main unit or

], [1] & [1] button on remote

button on

], [1] & [2] button on remote

button on

], [1] & [3] button on remote

button on

CD Auto Adjustment Display

To display result of selfadjustment for CD. (For more information, refer to section 8.2.7)

Cold Start To activate cold start

upon next AC power up.

The [NO DISC] display will appear after 3 sec.

Note: This test do not work when selector is in Tuner.

The [NO DISC] display will appear after 3 sec.

In doctor mode:

1. Press [

], [1] & [4] button on remote

control.

To exit Doctor Mode, press [ENTER] button on remote control or

button on main unit or

remote control.

In doctor mode:

1. Press [SLEEP] button on remote control.

To exit Doctor Mode, press [ENTER] button on remote control or

button on main unit or

remote control.

SA-PMX2E / SA-PMX2EG

Item FL Display Key Operation

Mode Name Description Front Key

MP3 Test To Inspect MP3 disc

check. (For more information, refer to section 8.2.8)

USB Test To Inspect USB check.

(For more information, refer to section 8.2.9)

In doctor mode:

1. Press [PROGRAM] button on remote control.

To exit Doctor Mode, press [ENTER] button on remote control or remote control.

In doctor mode:

1. Select [USB] for USB mode (Ensure USB device is inserted).

2. Press [2] button on remote control.

To exit Doctor Mode, press [ENTER] button on remote control or remote control.

8.2.3. Tuner Check

Purpose : Tuner inspection mode.

Below is the procedures for this mode.

Step 1: Enter into Doctor mode (For more information refer to section 8.1 on key operation to enter into this mode).

Step 2 : Press [TUNER] button on remote control.

· The system is switched to tuner inspection mode.

· The receiving frequency is set to [87.50Mhz] (Fmin) this time.

Step 3 : When [PLAY MODE] key is pressed, Auto Scan shall start from Fmin in the direction of downward.

· Auto Scan shall be continued until auto stop is made by pressing [0] key.

· Auto Scan shall stop when auto stop is made. When [0] key is pressed again in this state (auto stop state).

· Auto scan shall also be available for AM. It is also in the direction of downward.

1. [1] key is pressed..........FM 87.50MHz (Fmin) is received.

2. [2] key is pressed..........FM 108.00MHz (Fmax) is received.

3. [3] key is pressed..........FM 98.10MHz (Frequency set by Signal Generator) is received.

4. [4] key is pressed..........FM 90.10MHz.

5. [5] key is pressed..........FM 106.10MHz.

6. [6] key is pressed..........AM 522kHz (Fmin) is received.

7. [7] key is pressed..........AM 1629kHz (Fmax) is received.

8. [8] key is pressed..........AM 999kHz is received.

9. [9] key is pressed..........AM 603kHz is received.

button on main unit or

8.2.4. CD Loading Test

Purpose : CD Loading OPEN/CLOSE aging test.

Below is the procedures for this mode.

Step 1: Enter into Doctor mode. (For more information refer to section 8.1 on key operation to enter into this mode)

Step 2 : Switch to CD mode.

Step 3 : Press [

], [1] & [1] buttons on the remote control unit. The following operation shall be carry out as below :-

Step 4 : The FL shall display as below :

SA-PMX2E / SA-PMX2EG

The aging process will stop when the following conditions happens (counter value remains):-

1. When during “OPEN” operation, the tray stays in “CLOSE” state. (After REST SW is OFF, the CD OPEN SW)

· Do the CLOSE operation; stop the aging test at CLOSE condition.

2. When during “CLOSE” operation, the trays stays in “OPEN” state. (After CLOSE operation, REST SW was not off in 4s.)

· Do the OPEN operation; stop the aging test at OPEN condition.

When key [0] is pressed, the current test shall be cancelled and returns to Doctor mode display. The count value shall be reset to (00000).

During this test, FL shall display as normal and no

display on the FL.

8.2.5. CD Traverse Unit Test

Purpose : <CD Access Inner and Outer Disc aging test>. CD playab ility aging test.

Below is the procedures for this mode.

Step 1: Enter into Doctor mode. (For more information refer to section 8.1 on key operation to enter into this mode)

Step 2 : Switch to CD mode & insert test disc into unit.

Step 3 : Press [

], [1] & [2] buttons on the remote control. The following operation shall be carry out as below:-

SA-PMX2E / SA-PMX2EG

Step 4 : The FL shall display as below :

The aging process will stop when the following conditions happens (counter value remains):-

1. When during “OPEN” operation, the tray stays in “CLOSE” state. (After REST SW is OFF, the CD OPEN SW)

· Do the CLOSE operation; stop the aging test at CLOSE condition.

2. When during “CLOSE” operation, the trays stays in “OPEN” state. (After CLOSE operation, REST SW was not off in 4s.)

· Do the OPEN operation; stop the aging test at OPEN condition.

Step 3 : Due to certain reasons, when the following condition happens, the aging will stop but the count value shall be maintained :

· TOC incomplete after 10s.

· Tracks not able to access for more than 2s (out of focus).

When key [0] is pressed, the current test shall be cancelled and returns to Doctor mode display. The count value shall be reset to (00000).

During this test, FL shall display as normal and no

display on the FL.

8.2.6. CD Combination Test

Purpose : This test is the combination of the CD loading & traverse unit test.

Below is the procedures for this mode.

Step 1: Enter into Doctor mode. (For more information refer to section 8.1 on key operation to enter into this mode)

Step 2 : Switch to CD mode & insert test disc into unit.

Step 3 : Press [

], [1] & [3] buttons on the remote control. The following operation shall be carry out as below:-

SA-PMX2E / SA-PMX2EG

8.2.7. CD Auto Adjustment Display

Purpose : To display result of self-adjustment for CD.

Below is the procedures for this mode.

Step 1: Enter into Doctor mode. (For more information refer to section 8.1 on key operation to enter into this mode)

Step 2 : When [ correspond to the condition met as shown in the table below :

], [1] & [4] key are pressed at the doctor mode, the following shall be display ed for 3 secs. The result shall

SA-PMX2E / SA-PMX2EG

8.2.8. MP3 Test

Purpose : To check the MP3 Test.

Below is the procedures for this mode.

Step 1 : Enter into Doctor mode. (For more information refer to section 8.1 on key operation to enter into this mode)

Step 2 : Insert CD with MP3 tracks. (Ensure correct MP3 tracks is loaded)

Step 3 : Press [PROGRAM] button on remote control. Execute MP3 Disc Check (Refer Flowchart below)

Result display :

· Displaye d if MP3 test OK

· Displaye d if MP3 test NG

8.2.9. USB Test

Purpose : To check the USB Test.

Below is the procedures for this mode.

Step 1 : Enter into Doctor mode. (For more information refer to section 8.1 on key operation to enter into this mode)

Step 2 : Insert USB devices with MP3 tracks loaded. (Ensure correct MP3 tracks is loaded)

Step 3 : Press [2] button on remote control. Execute MP3 USB Check (Refer Flowchart below)

SA-PMX2E / SA-PMX2EG

Result display :

· Displaye d if USB test OK

· Displaye d if USB test NG

8.3. Error Code Table

Self-Diagnosis Function provides information on any problems occuring for the unit and its respective components by display ing error codes. Thesed 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.

Error Code Diagnosis Contents Description of error Automatic FL Display Remarks

F15 CD REST SW

Abnormal

H15 CD Open SW

Abnormal

CD traverse position intial setting operation failsafe counter (1000 ms) waiting for REST SW to turn on. Error No. shall be clear by force or during cold start.

During normal operation CD OPEN SW On fail to be detected with 4 sec. Error No. shall be clear by force or during cold start.

For CD unit (For Traverse). Press [ error.

] on main unit for next

SA-PMX2E / SA-PMX2EG

Error Code Diagnosis Contents Description of error Automatic FL Display Remarks

F26 Communication

between CD servo LSI and micro-p abnormal.

CD function DTMS command, after system setting, If SENSE = ´L´ cannot be detected. Memory shall contain F26 code. After Power on, CD function shall continue, error display shall be "NO DISC". Error No. shall be clear by force or cold start.

F61 Power Amp IC output

abnormal

During normal operation, if DCDET becomes "L", normal POWER OFF process shall not be executed, PCONT shall be switched to "L" immediately. "GOODBYE" shall not be display but the error display F61 is displayed instead. 2 seconds after the F61 displayed, ECONO shall be set to "L" and FL display shall be turned off. The error content shall be memorized when the abnormality occurs and can be display in the C-mecha self-diagnostic mode described later.

For CD unit (For Traverse). Press [

] on main unit for next

error.

For Power Supply Related Error Detection. Press [

] on main unit for next

error.

SA-PMX2E / SA-PMX2EG

9 Assembling and Disassembling

9.1. Caution

“ATTENTION SERVICER”

Some chassis components may be have sharp edges. Be careful when disassembling and servicing.

1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components.

2. For reassembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when required.

3. Select items from the following index when checks or replacement are required.

Warning:

This product uses a laser diode. Refer to “Precaution of Laser Diode”.

ACHTUNG:

Die Lasereinheit nicht zerlegen.

Die Lasereinheit darf nur gegen eine vom Hertsteller spezifizierte Einheit ausgetauscht werden.

Below is the list of disassembly sections

· Disasse mbly of Top Panel Unit

· Disasse mbly of D-Port P.C.B

· Disasse mbly of USB P.C.B

· Disasse mbly of Front Panel

· Disasse mbly of Music Port P.C.B

· Disasse mbly of FL, Switch & Headphone P.C.B

· Disasse mbly of Rear Cabinet

· Disasse mbly of Main P.C.B

· Disasse mbly of Inner Chassis

· Disasse mbly of CD Mechanism Unit

· Disasse mbly of Transformer P.C.B

· Disasse mbly of Tuner Extent P.C.B

· Replacement of the Power IC

SA-PMX2E / SA-PMX2EG

9.2. Disassembly flow chart

The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing.

To assemble the unit, reverse the steps shown in the chart below.

9.3. Main Parts Location Diagram

SA-PMX2E / SA-PMX2EG

9.4. Disassembly of Top Panel Unit

Step 1 : Remove 2 screws.

Step 2 : Remove 2 screws.

Step 4 : Release the catch and lift the Top Panel Unit slightly backward as arrow shown.

Step 3 : Remove 4 screws.

Step 5 : Detach FFC cable (CN305) on Main P.C.B.

Step 6 : Remove Top Panel Unit.

9.5. Disassembly of D-Port P.C.B

· Follow the (Step 1) - (Step 6) of Item 9.4.

Step 1 : Remove 2 screws.

Step 2 : Remove D-Dock shield.

SA-PMX2E / SA-PMX2EG

Step 1 : Detach FFC cable (CN304) on Main P.C.B.

Step 3 : Remove D-Port P.C.B as arrow shown.

9.6. Disassembly of USB P.C.B

· Follow the (Step 1) - (Step 6) of Item 9.4.

Step 2 : Remove 2 screws.

Step 3 : Remove USB unit.

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