Panasonic SC-EN38DBEB Service Manual

RMS

10%

Input

Sensitivity

Terminal

Output

Terminal

Option

Frequency

Disc

(1)

(2)

(3)

Sampling

MP3

Bit

MP3

CD Stereo System

SC-EN38DBEB

Colour

(K)... Black Type

ORDER NO. MD0803005CE

Specifications

AMPLIFIER SECTION

OUTPUT POWER both channel driven simultaneously

total harmonic distortion (THD)

kHz 3 W per channel (6 Ω)

Music Port

100 mv, 15 kΩ

Stereo, 3.5 mm jack

Headphone

Stereo, 3.5 mm jack

(16 Ω to 32 Ω)

Port Version 1

TUNER SECTION

range

87.50 MHz to 108.00 MHz (50 kHz)

CD SECTION

played [8cm or 12cm]

CD-Audio (CD-DA)

CD-R/RW (CD-DA, MP3)

MP3

frequency

44.1 kHz

32 kHz, 44.1 kHz, 48 kHz

rate

32 kbps to 384 kbps

Decoding 16/20/24 bit linear

Pick up

Wavelength 785 nm

Laser power CLASS 1

Audio Output (Disc)

Number of channels 2 channel

Audio performance

Frequency response (CD-Audio) 20 Hz to 20 kHz

Wow and flutter Below measurement limit

Digital filter 8

D/A converter MASH (1 bit DAC)

I USB SECTION

Media file format support MP3 (*.mp3)

I DAB SECTION

DAB memories 20 channels

Frequency Band (Waveleng th)

Band III (UK only)

11B to 12D (218.640 MHz to 229.072 MHz)

DAB External Antenna Terminal F-Connector (75 Ω)

I SPEAKER SECTION

Type 1 Way, 1 speaker system

(Bass reflex)

Speaker (s)

Full range Speaker 7 cm cone type

SC-EN38DBEB

Impedance 6 Ω

Input power (IEC) 3W(MAX)

Dimension (W x H x D) 120 mm x 202.8 mm x 133.5 mm

I GENERAL

Power supply AC 230 to 240 V, 50 Hz

Power consumpti on 30 W

Dimension (W x H X D) 252.5mm x 202.8mm x 133.5 mm

Mass

With speakers Approx. 3.20 kg

Without speakers Approx. 1.90 kg

Operating temperature range 0°Cto+40°C

Operation humidity range 35% to 80% RH (no condensation)

Power consumpti on in standby mode:

Notes:

• Specifications are subject to change without notice.

• Total harmonic distortion is measured by the digital spectrum

analyzer.

I System : SC-EN38DBEBK Main Unit: SA-EN38DBEBK

Speaker: SB-EN38P-K

CONTENTS

Page Page

1 Safety Precautions

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

6 Accessories

7 Operation Procedures

8 Self diagnosis and special mode setting

9 Assembling and Disassembling

10 Service Fixture and Tools

11 Service Position

12 Voltage Measurement & Waveform Chart

13 Wiring Connection Diagram

14 Block Diagram

15 Notes Of Schematic Diagram

16 Schematic Diagram

17 Printed Circuit Board

18 Illustration of IC’s, Transistors and Diodes

19 Terminal Function of IC’s

20 Exploded Views

21 Replacement Parts List

2.6 W (approx.)

101

105

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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 expose d 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 cabinet part on the equipment such as screwheads, connectors, control shafts, etc. When the exposed 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

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.

Fig. 1

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1.2. Caution for AC Cord

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1.3. Before Repair and Adjustment

Disconnect AC power, discharge Power Supply Capacitors C501 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 230-240 V, 50 Hz in NO SIGNAL mode should be ~300 mA.

1.4. 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.

1.5. 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 & Replac ement 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 K2CT3CA00004 AC CORD [M] JK600 K2AA2B000017 AC INLET [M] T600 G4CYAYY00176 TRANSFORMER [M] F1 K5D202BLA013 FUSE [M] L600 ELF15N035AN LINE FILTER [M] 301 RAE0165T-V TRAVERSE (W/O CD SERVO P. C. B.) [M] (RTL) FP841 K5G251A00008 FUSE PROTECT OR [M] FP600 K5G302AA0002 FUSE PROTECTOR [M] R260 ERD2FCVG470T RESISTOR [M] PCB6 REPX0652A TRANSFORMER P.C.B. [M] (RTL) PCB7 REPX0652C AC INLET P.C.B [M] (RTL)

in the

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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 inciden ce 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 touchin g 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 applyin g 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 remover 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 installed.

Caution

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize body motions when handlin g 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).

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3 Precaution of Laser Diode

CAUTION:

This unit utilizes a class 1 laser (Wavelength: 785 nm).

Invisible laser radiation is emitted from the optical pickup lens.

When the unit is turned on:

1. Do not look directly into the pick up lens.

2. Do not use optical instruments to look at the pick up lens.

3. Do not adjust the preset variable resistor on the pickup lens.

4. Do not disassemble the optical pick up unit.

5. If the optical pick up is replaced, use the manufacturer’s specified replacement pick up only.

6. Use of control or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

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.

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4 Handling Precautions For Traverse Deck

The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body.

So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).

G Handling of CD 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. The short land between the No.4 (LD) and No.5 (GND) pins on the flexible board (FFC) is shorted with a solder build-up to prevent damage to the laser diode.

3. Take care not to apply excessive stress to the flexible board (FFC board) (Fig 4.1).

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

Fig 4.2

Fig 4.1

G Grounding for electrostatic breakdown prevention

1. Human body grounding ()

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

2. Work table grounding ()

Put a conduc tive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is placed, 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 Optical Pickup :

The traverse 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.

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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%

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6 Accessories

Note : Refer to Packing Materials & Accessories (Section 21) for part number.

Remote

control

AC cord

AM antenna

Support stand

DAB antenna

7 Operation Procedures

7.1. Main Unit & Remote Control Key Buttons Operation

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7.2. Attach the stand to the unit

7.3. Connection

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7.4. External unit

7.5. Disc Information

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8 Self diagnosis and special mode setting

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

8.1. Service Mode Summary Table

The service mode 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

[Volume -] [4], [7] To enter into doctor mode for various item

checking.

Mode Remote control unit buttons Application Note

Doctor Mode [2] FL ALL Segment inspection (Refer to the section 8.2 for more

[7], [8], [9] Forced VOL setting (Refer to the section 8.2 for more

[ ], [1], [1] CD Loading Test (Refer to the section 8.2 for more

[ ], [1], [2] CD Traverse Test (Refer to the section 8.2 for more

[ ], [1], [3] CD Combination Test (Refer to the section 8.2 for more

[ ], [1], [4] CD Auto Adjustment Display (Refer to the section 8.2 for more

[SLEEP] Cold Start setting (Refer to the section 8.2 for more

[2] USB TEST (Refer to the section 8.2 for more

(Refer to the section 8.2 for more information.)

information.)

8.2. Service Mode Table 1

Below is the various special modes for checking:-

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 CD mode (Ensure no CD inserted.)

2. Press and hold [Volume -] button for 2 seconds follow by [FF]

To exit, press [ main unit or remote control.

] button on

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 micro-processor version as shown is an example. It will be revise when there is an updates.

DIsplay 1

In any mode:

1. Press [Volume -] button on main unit follow by [4] and [7] on remote control.

To exit, press [ main unit or remote control.

FL Display sequence Display 1 → 2

Checksum (Condition 1) When EEPROM IC detected and has ROM correction.

Checksum (Condition 2) When EEPROM IC is detected and there is no ROM correction.

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] button on

FL Display Test To check the FL segments display (All

segments will light up)

Checksum (Condition 3) When EEPROM IC is detected and has ROM correction but not working properly.

Display 2

The Check Sum of EEPROM and firmware version will be display for 1 sec. * ROM correction ** Firmware version No:

In doctor mode:

1. Press [2] button on remote control.

To cancel, press [0] button remote control. To exit, press [

] button on

main unit or remote control.

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Volume Setting Mode

Item FL Display Key Operation

Mode Name Description Front Key

To check for the volume setting of the main unit. The volume will be

In doctor mode:

1. Press [7] button on remote control. automatically set to its respective level (in dB). During the mode, treble/bass/EQ will be set to “0” dB & OFF.

2. Press [8] button on remote control.

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.

To check for the traverse unit operation. In this mode, the first & last track is access & read. (TOC). It fails when TOC is not completed by IOS or the traverse is out of focus.

A combination of CD loading & traverse unit test.

The counter will increment by 1 until reach

9999999

↓

The counter will increment by 1 until reach

9999999

↓

The counter will increment by 1 until reach

9999999

↓

3. Press [9] button on remote control.

To exit, press [

] button on

main unit or remote control.

In doctor mode:

1. Press [

], [1] & [1] button on

remote control.

To cancel, press [0] button remote control. To exit, press [

] button on

main unit or remote control.

In doctor mode:

1. Press [

], [1] & [2] button on

remote control.

To cancel, press [0] button remote control. To exit, press [

] button on

main unit or remote control.

In doctor mode:

1. Press [

], [1] & [3] button on

remote control.

To cancel, press [0] button remote control. To exit, press [

] button on

main unit or remote control.

CD Auto Adjustment Display

To display result of self adjustment for CD. For more information, please refer to Section 8.2.1.

Cold Start To activate cold start upon next AC

power up.

The [NO DISC] display will appear after 3s,

In doctor mode:

1. Press [

], [1] & [4] button on

remote control.

To cancel, press [0] button remote control. To exit, press [

] button on

main unit or remote control.

In doctor mode:

1. Press [SLEEP] button on remote

control.

To exit, press [

] button on

main unit or remote control.

Item FL Display Key Operation

Mode Name Description Front Key

USB Test Mode To Inspect USB Testing.

The display will appear after 3s,

In doctor mode:

1. Select [USB

2. Press [2] button on remote control.

To exit, press [ main unit or remote control.

] for USB mode.

8.2.1. CD Self-Adjustment (AJST) Result 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 8.2 on key operation to enter into this mode).

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

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

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] button on

8.3. Error Code Table 1

8.3.1. Mechanism Error Code Table

Self-Diagnosis Function provides information on any problems occuring for the unit and its respective components by displaying 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.

Error Code Diagnosis Contents Description of error Automatic FL Display Remarks

F15 CD REST SW

abnormal

H15 CD OPEN SW

abnormal

CD traverse position initial setting operation fail-safe counter (1000ms) waiting for REST SW to turn on. Error no. shall be clear by force or during cold start.

During normal operation, if CD OPEN SW ON is not detected within 4 sec, and then H15 shall be memorized. The error code can be cleared only at the start up of micro-p after reset.

For CD unit.(For traverse). Press [

] on main unit for next error.

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Error Code Diagnosis Contents Description of error Automatic FL Display Remarks

F26 Communication

between CD servo LSI and micro-p abnormal.

F76 Abnormality in the

output voltage of stabilized power supply.

CD function DTMS command, after system setting, if SENSE = “L” cannot be detected. Memory shall contain F26code. After power on, CD function shall continue, error display shall be “NO DISC”. Error no. shall be clear by force or cold start.

In normal operation when “DCDET” is detected “L” (IOIO) for two consecutive times, this error code will be displayed for 2s & after PCONT will be turned to “L” (Low).

For CD unit.(For traverse). Press [

] on main unit for next error.

Press [ ] on main unit for next error.

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9 Assembling and Disassembling

9.1. Caution

“ATTENTION SERVICER”

Be careful when disassembling and servicing.

Some chassis components may have sharp edges.

Special Note:

1. This section describes the disassembly procedures for all the major printed circuit boards and main components.

2. Before the disassembly process was carried out, do take special note that all safety precautions are to be carried out.

(Ensure that no AC power supply is connected during disassembling.)

3. For assembly after operation checks or replacement, reverse the respective procedures.

Special reassembly procedures are described only when required.

4. Do take note of the locators on each printed circuit board during reassembling procedures.

5. The Switch Regulator IC may have high temperature after prolonged use.

6. Use caution when removing the top cabinet and avoid touching heat sinks located in the unit.

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

• Disassembly of Rear Panel

• Disassembly of Transformer P.C.B., AC Inlet P.C.B. & Transformer

• Disassembly of Option Port P.C.B.

• Disassembly of USB P.C.B.

• Disassembly of Tuner P.C.B.

• Disassembly of DAB Module Unit

• Disassembly of Main P.C.B.

• Replacement of Voltage Regulator IC (IC501)

• Replacement of Voltage Regulator IC (IC502)

• Replacement of Voltage Regulator Transistor (Q501)

• Replacement of Power AMP IC (IC700)

• Replacement of Regulator Transistor (Q502)

• Disassembly of Tact Switch & Sensor P.C.B.

• Disassembly of CD Mechanism Unit

• Disassembly of Traverse Cover

• Disassembly of CD Servo P.C.B.

• Disassembly of Motor Unit & Motor P.C.B.

• Disassembly of Ipod Cradle P.C.B.

• Disassembly of Panel & LED P.C.B.

• Disassembly of Detector P.C.B.

• Disassembly of CD Lid

• Disassembly of Docking Lid

• Disassembly of Function Lid Ass’y

• Disassembly of Speaker

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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.

9.2.1. For Main unit

9.2.2. For Speaker unit (SB-EN38)

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9.3. Main Parts Location Diagram

9.4. Disassembly of Rear Panel

Step 1 : Remove 9 screws.

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Step 3 : Detach 3P cable at connector (CN601) on Main P.C.B. and remove Rear Panel.

Step 2 : Release 6 catches and slightly push the Rear Panel as arrow shown.

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9.5. Disassembly of Transformer P.C.B., AC Inlet P.C.B. & Transformer

• Follow the (Step 1) - (Step 3) of item 9.4.

• Disassembly of Transformer P.C.B.

• Disassembly of AC Inlet P.C.B.

Step 5 : Release 2 catches and remove AC Inlet P.C.B. as arrow shown.

Step 1 : Remove 2 screws.

Step 2 : Release 2 catches and remove Transformer P.C.B. as

arrow show.

Step 3 : Desolder 2 solder point from Transformer P.C.B..

Step 4 : Remove Transformer P.C.B..

Step 6 : Desolder 2 solder point from AC Inlet P.C.B..

Step 7 : Remove AC Inlet P.C.B..

Caution : During reasse mbling procedures, ensure the cable are properly dressed.

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• Disassembly of Transformer

− Follow the (Step 1) - (Step 2) of (Disassembly of

Transformer P.C.B.)

− Follow the (Step 5) of (Disassembly of AC Inlet P.C.B.)

Step 8 : Remove 4 screws.

Step 9 : Remove Transformer with AC Inlet & Transformer

P.C.B..

Step 10 : Desolder 4 solder point.

Step 11 : Remove Transformer.

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9.6. Disassembly of Option Port P.C.B.

• Follow the (Step 1) - (Step 3) of item 9.4.

9.7. Disassembly of USB P.C.B.

• Follow the (Step 1) - (Step 3) of item 9.4.

Step 1 : Detach 14P FFC cable at connector (CN4000) on Option Port P.C.B..

Step 2 : Remove 2 screws.

Step 1 : Remove 1 screw and 5P Connector (For USB).

Step 2 : Remove Tape.

Step 3 : Detach 22P FFC cable at connector (CN302) on Main

P.C.B..

Step 4 : Remove 1 screw.

Step 5 : Remove USB Unit.

9.8. Disassembly of Tuner P.C.B.

• Follow the (Step 1) - (Step 3) of item 9.4.

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Step 6 : Remove USB bottom case as arrow shown.

Step 7 : Unsolder the solder point to remove USB P.C.B..

Step 1 : Remove 2 screws.

Step 2 : Detach 12P FFC cable at connector (CN1) on Tuner

P.C.B..

Step 3 : Remove Tuner P.C.B..

Caution : Take extra care for the locator on the Tuner P.C.B. during removal and assembly of the Tuner P.C.B..

• Disassembly of Tuner Shield

Step 4 : Desolder 4 solder point from Tuner P.C.B. to remove

Tuner Shield.

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9.9. Disassembly of DAB Module Unit

• Follow the (Step 1) - (Step 3) of item 9.4.

• Follow the (Step 1) - (Step 3) of item 9.8.

Step 3 : Remove DAB Shield Plate as arrow shown.

Step 1 : Remove DAB Module unit as arrow shown.

Step 2 : Detach 18P FFC cable at connector (CN330) on DAB

Module unit.

Step 4 : Desolder 18P (P1).

Step 5 : Desolder 2P (P201).

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