Panasonic SAPM-91-DEE Service manual

DVD Stereo System

SA-PM91DEE

Colour

(S) ... Silver Type

ORDER NO. MD0504152C3

Specification

n Amplifier Section

RMS Output Power Stereo mode (Both channel driven)

10% total harmonic distortion

1 kHz, (Low channel) 40 W per channel (6Ω )

8 kHz, (High channel) 40 W per channel (6Ω )

Total RMS Stereo mode power 160 W

DIN Output Power Stereo mode (Both channel driven)

10% total harmonic distortion

1 kHz, (Low channel) 35 W per channel (6Ω )

8 kHz, (High channel) 35 W per channel (6Ω )

Total RMS Stereo mode power 140 W per channel

Phone jack terminal Stereo, 3.5 mm jack

n Disc Section

Disc played [8cm or 12 cm]

1. DVD-RAM (DVD-VR compatible, JPEG formatted disc)

2. DVD-Audio

3. DVD-Video

4. DVD-R (DVD-Video compatible)

5. DVD-RW, +R, +RW

6. CD-Audio (CD-DA)

7. Video CD

8. SVCD (Conforming to IEC62107)

9. CD-R/CD-RW

(CD-DA, Video-CD, SVCD, MP3, WMA, JPEG formatted discs)

10. MP3/WMA*

· Compatible compression rates:

MP3: between 32 kbps and 320 kbps

WMA: between 48 kbps and 320 kbps

11. JPEG*

· Exif Ver 2.1 JPEG Baseline files

· Picture resolution:

between 320 x 240 and 6144 x 4096 pixels

(Sub sampling is 4:2:2 or 4:2:0)

12. HighMAT Level 2 (Audio and Image)

13. HDCD

* The total combined maximum number of recognizable audio and picture contents and groups: 4000 audio and picture contents and 400 groups.

udio output

Number of channels 2

Digital audio output

Optical digital output Optical terminal

Pick up

Wavelength

DVD 662 nm

CD 785 nm

Laser power CLASS 2/CLASS 3a

n Video Section

Video system PAL625/50, PAL525/60, NTSC

SA-PM91DEE

Composite video output

Output level 1Vp-p(75Ω)

Terminal Pinjack(1system)

S-Video output

Y output level 1Vp-p(75Ω)

C output level 0.3 Vp-p (75Ω)(PAL)

0.286 Vp-p (75Ω )(NTSC)

Terminal S terminal (1 system)

RGB video output

R output level 0.7 Vp-p (75Ω)

G output level 0.7 Vp-p (75Ω)

B output level 0.7 Vp-p (75Ω)

Terminal SCART jack

n Cassette Deck Section

Track system 4-track, 2-channel

Heads

Record/playback Solid permalloy head

Erasure Double gap ferrite head

Motor DC servo motor

Recording system AC bias 100 kHz

AC erase 100 kHz

Tape speed 4.8 cm/sec

Overall frequency response (+3, -6 dB) at Deck Out

Normal 35 Hz - 14 kHz

S/N ratio 50 dB (A weighted)

Wow and flutter 0.18% (WRMS)

Fast forward and rewind time Approx. 120 seconds with C-60

cassette tape

n FM Tuner Section

Frequency range 87.50 - 108.00 MHz

(50 kHz step)

Sensitivity 1.6 µV (IHF)

S/N 26 dB 1.5 µV

ntenna terminals 75 Ω (unbalance)

Preset stations 15

n AM Tuner Section

Frequency range 522 - 1629 kHz (9 kHz steps)

Sensitivity

S/N 20 dB at 999 kHz 560 µV/m

Image rejection at 999 kHz 40 dB

Preset stations 15

n General

Power supply AC 230 V, 50 Hz

Power consumption 140 W

Dimensions (W x H x D) 175 mm x 248 mm x 388 mm

Mass 5.8 kg

Operating temperature range +5°C to + 35°C

Operating humidity range 5% to 90% RH (no

condensation)

Power consumption in standby mode 0.5 W

n System

n System: SC-PM91DEE-S

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.

Music Center: SA-PM91DEE-S

Speaker: SB-PM91P-MJ

CONTENTS

Page Page

1 Safety Precautions 4

1.1. GENERAL GUIDELINES

2 Before Repair and Adjustment

3 Protection Circuitry

4 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices

5 Handling the Lead-free Solder

5.1. About lead free solder (PbF)

6 Precaution of Laser Diode

7 Cautions to be taken when handling Optical Pickup

7.1. Handling Optical Pickup

7.2. Replacing Precautions for Optical Pickup Unit

7.3. Grounding for Preventing Electrostatic Destruction

8 Accessories

9 Operation Procedures

10 Disc Information

11 About HighMAT

11.1. What 痴 HighMAT?

11.2. Why take advantage of HighMAT?

11.3. Benefits of HighMAT?

12 Assembling and Disassembling.

12.1. Disassembly flow chart

12.2. Disassembly of Side Panel (L) & (R)

12.3. Disassembly of Top Cabinet Unit

12.4. Disassembly of Deck Mechanism and Tape Eject P.C.B

12.5. Disassembly of Front Panel Assembly

SA-PM91DEE

12.6. Disassembly of Panel P.C.B 21

12.7. Disassembly of Switch P.C.B

12.8. Disassembly of Rear Cabinet

12.9. Disassembly of Tuner Pack

12.10. Disassembly of Harmonic Bass P.C.B

12.11. Disassembly of Scart Terminal P.C.B

12.12. Disassembly of Speaker P.C.B

12.13. Disassembly of Main P.C.B

12.14. Disassembly of Transforme r P.C.B

12.15. Disassembly of Power P.C.B

12.16. Disassembly of DVD Mechanism Unit

12.17. Checking Procedure for Each Major P.C.B.

12.18. Procedure for Replacing Deck Holder

12.19. Replacing for CD Lid

12.20. Procedure for Replacing Pinch Roller and Head Block

(Deck Mechanism Unit)

12.21. Procedure for Replacing Motor, Capstan Belt A, Capstan

Belt B, and Winding Belt (Deck Mechanism Unit)

12.22. Procedure for Replacing Parts on Deck Mechanism PCB

12.23. Procedure for removing CR16 mechanism (Precaution)

12.24. CR16 mechanism disassembly procedure

12.25. CR16 MECHANISM ASSEMBLY PROCEDURE

12.26. Disassembly of traverse mechanism

12.27. Handling of cassette tape jam

13 Service Positions

13.1. Checking procedure

13.2. Checking the major P.C.B.

14 Self-Diagnosis Function

14.1. Automatic Displayed Error Codes

14.2. Memorized Error Codes

14.3. Opecon Version and EEPROM Checksum Display

14.4. Service Mode Table 1

14.5. Self-Diagnosis Error Code Description

14.6. DVD/CD Self-Diagnosis Error Code Description

14.7. Service Mode Table 2

14.8. Tray Lock Function

14.9. Things to Do After Repair (Precaution)

14.10. Displaying Self-Diagnostic Results

14.11. Error detection for DVD/CD block

14.12. Error detection code for Cassette Mechanism Block

14.13. Changer Reliability Test 1

14.14. Changer Reliability Test 2

14.15. Changer Reliability Test 3

15 Cautions To Be Taken During Servicing

15.1. Recovery after the dvd player is repaired

15.2. DVD Player Firmware Version Upgrade Process

15.3. Firmware Version Upgrade Process by Using Disc and

Recovery Process

15.4. Using Recovery Disc

15.5. Total Usage Time Display

16 Procedure for Checking Operation of Individual Parts for

Deck Mechanism Unit

16.1. Operation Check with Cassette Tape

16.2. Operation Check without Cassette Tape

17 Measurement And Adjustments

17.1. Cassette Deck Section

18 Voltage Measurement and Waveform Chart

18.1. Voltage Measurement

18.2. Waveform

19 Block Diagram

19.1. DVD Module Block

19.2. Main Block

20 Notes of Schematic Diagram

21 Schematic Diagram

21.1. Optical Pickup Unit Circuit

21.2. DVD Module Circuit

21.3. Main Circuit

21.4. Panel Circuit, Harmonic Bass Circuit & Switch Circuit

21.5. Scart Terminal Circuit & Speaker Circuit

21.6. Transformer Circuit

21.7. Power Circuit

21.8. Deck Circuit, Tape Eject Circuit & Deck Mechanism Circuit

21.9. CD Loading Circuit

22 Printed Circuit Board

22.1. DVD Module P.C.B. (Side: A & B)

22.2. Main P.C.B.

22.3. Panel P.C.B.

22.4. Transformer P.C.B.

22.5. Power P.C.B.

22.6. Deck P.C.B. & Tape Eject P.C.B.

22.7. Deck Mechanism P.C.B. & CD Loading P.C.B.

22.8. Scart Terminal P.C.B. & Harmonic Bass P.C.B.

22.9. Switch P.C.B. & Speaker P.C.B.

23 Wiring Connection Diagram

24 Type Illustrations of ICs, Transistors & Diodes 25 Terminal Function of IC 痴

25.1. IC2801(C2CBJG000573) Microprocessor

26 Parts Location and Replacement Parts List

26.1. Deck Mechanism (RAA4110-S)

26.2. CD Loading Mechanism

26.3. Cabinet

26.4. Electrical Parts List

26.5. Packing Materials & Accessories Parts List

26.6. Packaging

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SA-PM91DEE

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

Fig. 1

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.

SA-PM91DEE

2 Before Repair and Adjustment

Disconnect AC power, discharge Power Supply Capacitors C5802, C5803, C5804, C5912, C5902, C5901, C5916 , C5915 , C5905, C5904, C2843 and C2824 through a 10 Ω, 1 W 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 V, 50 Hz in NO SIGNAL mode (volume min) should be ~300 mA.

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 connec tion 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.

4 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices

Some semiconducto r (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 handling 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 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 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 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-PM91DEE

5 Handling the Lead-free Solder

5.1. About lead free solder (PbF)

Distinction of PbF P.C.B.:

P.C.B.s (manufactured) using lead free solder will have a PbF stamp on the P.C.B.

Caution:

· Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher. Please

use a high temperature soldering iron. In case of soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).

· Pb free solder will tend to splash when heated too high (about 1100°F/600°C).

· W hen soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the

soldering points with the Pb free solder until it melts enough.

SA-PM91DEE

6 Precaution of Laser Diode

CAUTION:

This unit utilizes a class 1 laser.

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.

n Use of Caution Labels

SA-PM91DEE

7 Cautions to be taken when handling Optical Pickup

The laser diode used inside optical pickup could be destroyed due to static electricity as a potential difference is caused by electrostatic load discharged from clothes or human body. Handling the parts carefully to avoid electrostatic destruction during repair.

7.1. Handling Optical Pickup

1. Do not impact on optical pickup as the unit structurally uses an extremely precise technology.

2. Short-circuit the flexible cable of optical pickup remove from the circuit board using a short-circuit pin or clip in order to prevent laser diode from electrostatic destruction (Refer to Fig. 7.1 and Fig. 7.2)

3. Do not handle flexible cables forcibly as this may cause snapping. Handle the parts carefully (Refer to Fig. 7.1)

4. A new optical pickup is equipped with an anti-static flexible cable. After replacing and connecting to the flexible board, cut the anti-static flexible cable. (Refer to Fig. 7.1)

Fig. 7.1

7.2. Replacing Precautions for Optical Pickup Unit

DVD/CD Optical Pickup

The optical pickup by which part supply was carried out attaches the short clip to the flexible board for laser diode electrostatic discharge damage prevention. Please remove the short clip and be sure to check that the short land is open, before connecting. (Please remove solder, when the short land short-circuits.)

7.3. Grounding for Preventing Electrostatic Destruction

1. Human body grounding

Use the anti-static wrist strap to discharge the static electricity accumulated in your body. (Refer to Fig. 7.2)

2. Work place grounding

Place a conductive material (conductive sheet) or ironboard where optical pickup is placed. (Refer to Fig. 7.2)

Note :

Keep your clothes away from optical pickup as wrist strap does not release the static electricity charged in clothes.

Fig. 7.2

8 Accessories

Note : Refer to Packaging Materials & Accessories Part List (Section 26.5) for part number.

Remote

Control

AC Cord

SA-PM91DEE

FM Antenna

AM Loop Antenna

Video Cable

SA-PM91DEE

9 Operation Procedures

SA-PM91DEE

10 Disc Information

SA-PM91DEE

11 About HighMAT

11.1. What’s HighMAT?

Consumers worldwide are using PCs to create their own collections of music, photos and even video by burning them onto CDs. But how these collections can be experienced across different devices can be confusing to navigate, time consuming to access for a DVD player, and be incomplete in terms of music information available to the customer.

HighMAT offers a solution to this growing consumer problem. HighMAT dramatically improves the digital media experience on consumer electronic devices by delivering a simple, standardized approach that allows consumers who have created personal collections of digital music, photography and video on their PC to:

· Create a HighMAT CD or DVD which can be easily played back on consum er electronics devices such as CD and DVD players, and car stereos.

· Move digital media files (using recordable media such as CD-R and CD-RW) between the PC and various playback devices such as CD and DVD players.

A new standard for creating personal media on consumer electronic devices, HighMAT enable easier and more seamless interoperability between Windows PCs and devices designed for your living room, or the car.

11.2. Why take advantage of HighMAT?

A Problem Defined:Toda y, when consumers create their own digital audio, video or photo collections on CD-R or other physical formats, there are numerous, inconsistent ways that devices read the data. For the consumer, the playba ck experience can be confusing:

SA-PM91DEE

A Solution Created: HighMAT delivers a better digital media access experience by creating a standard approach for PCs to structure digital media on various physical formats and for playback devices to read the data.

11.3. Benefits of HighMAT?

Conventional HighMAT

Even though DVD player is CD-R/RW compatible, the inconsistent ways that various DVD players can read the music or photos files often leads to a confusing and inconsistant playback experince.

HighMAT compatible products play content back with consistent interface. This includes products which are JPEG compatible products without HighMAT support.

SA-PM91DEE

HighMAT is now available for CD Burning and in Leading DVD PlayersHighMAT is a new technology that is now available in leading software and consumer electronic devices to dramatically improve the digital media experie nce when you create homemade CDsHighMAT delivers a simple, standardized way for PC software and consumer electronics devices to talk to each other and work better together.

When you create your homemade CDs with software that supports HighMAT CD burning, and then play them back on a DVD player that supports HighMAT, you get better, easier navigation. You get folders you can access with a single click of your DVD player´s remote control. You can view important information about your music like full song names, artist titles, album names and genre. And you can get faster startup on your home entertainment device.

To enjoy the benefits of HighMAT, all you need is software that supports HighMAT for CD burning of music or photos, as well as a home entertainment device like a DVD player that supports HighMAT for playback. Always look for the HighMAT logo on your software or home entertainment device to ensure it supports the HighMAT experience.

SA-PM91DEE

12 Assembling and Disassembling.

“ATTENTION SERVICER”

Some chassis components maybe 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.

· Disassembly of Side Panel (L) & (R)

· Disassembly of Top Cabinet Unit

· Disassembly of Deck Mechanism and Tape Eject P.C.B

· Disassembly of Front Panel Assembly

· Disassembly of Panel P.C.B

· Disassembly of Switch P.C.B

· Disassembly of Rear Cabinet

· Disassembly of Tuner Pack

· Disassembly of Harmonic Bass P.C.B

· Disassembly of Scart Terminal P.C.B

· Disassembly of Speaker P.C.B

· Disassembly of Main P.C.B

· Disassembly of Transformer P.C.B

· Disassembly of Power P.C.B

· Disassembly of DVD Mechanism Unit

Warning:

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

SA-PM91DEE

12.1. 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.

SA-PM91DEE

12.2. Disassembly of Side Panel (L)

& (R)

Step 1 : Remove 5 screws.

Step 2 : Remove 1 screw.

Step 3 : Remove the side panel (L) as arrow shown (Be careful of the catches).

Step 1 : Releas e catches at both ends.

Step 2 : Lift up the top cabinet unit, push backward as arrow shown and flip top cabinet unit sideway.

Step 4 : Remove 5 screws.

Step 5 : Remove 1 screw.

Step 6 : Remove the side panel (R) as arrow shown (Be careful of the catches).

12.3. Disassembly of Top Cabinet

Unit

· Follow the (Step 1) - (Step 6) of Item 12.2.

Step 3 : Detach the FFC CN2807.

12.4. Disassembly of Deck Mechanism and Tape Eject P.C.B

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 3) of Item 12.3.

Step 1 : Detach the FFC CN2805.

SA-PM91DEE

Step 1 : Remove 1 screw.

Step 2 : Releas e the clutch.

Step 2 : Detach the connector CN5901.

Step 3 : Remove 4 screws.

Step 4 : Push the lever as arrow shown to open the cassette lid and remove the deck mechanism unit.

12.5. Disassembly of Front Panel Assembly

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 3) of Item 12.3.

Step 3 : Releas e 3 claws.

Step 4 : Remove the front panel assembly as arrow shown.

12.6. Disassembly of Panel P.C.B

· Follow the (Step 1) - (Step 6) of Item 12.2.

SA-PM91DEE

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.5.

Step 4 : Detach the connector CN603.

Step 1 : Remove 6 screws.

Step 2 : Remove the volume knob.

Step 3 : Releas e 3 catches.

12.7. Disassembly of Switch P.C.B

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.5.

· Follow the (Step 1) - (Step 4) of Item 12.6.

Step 1 : Remove 2 screws.

Step 2 : Releas e 6 catches.

SA-PM91DEE

12.8. Disassembly of Rear Cabinet

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

Step 3 : Remove the center stage unit as arrow shown.

Step 4 : Release 4 catches to remove the P.C.B support.

Step 1 : Remove 14 screws.

Step 2 : Detach the connector CN2808.

Step 3 : Releas e 2 catches.

Step 4 : Remove the rear cabinet as arrow shown.

12.9. Disassembly of Tuner Pack

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.8.

Step 5 : Remove the Switch P.C.B as arrow shown.

Step 1 : Detach the connector CN2804 and remove the tuner pack as arrow shown.

SA-PM91DEE

12.10. Disassembly of Harmonic Bass P.C.B

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

Step 1 : Detach the connec tion CN2817 and remove the Harmonic Bass P.C.B.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.8.

Step 1 : Detach the connection CN5805.

Step 2 : Remove 1 screw.

12.11. Disassembly of Scart Terminal P.C.B

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.8.

Step 3 : Remove the Speaker P.C.B as arrow shown.

12.13. Disassembly of Main P.C.B

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.8.

Step 1 : Lift the Scart Terminal P.C.B slightly outward as arrow shown.

Step 2 : Detach the connection CN2809 and remove the Scart Terminal P.C.B.

12.12. Disassembly of Speaker P.C.B

· Follow the (Step 1) - (Step 6) of Item 12.2.

Step 1 : Detach the FFC CN2806.

Step 2 : Detach the FFC CN2805 and connection CN2801, CN2802.

SA-PM91DEE

Step 1 : Detach the connector CN5801, CN590 1.

Step 3 : Detach the FFC CN2803.

12.14. Disassembly of Transformer P.C.B

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.8.

Step 2 : Remove 4 screws.

12.15. Disassembly of Power P.C.B

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.8.

· Follow the (Step 1) - (Step 3) of Item 12.13.

Step 1 : Remove 6 screws.

Step 2 : Detach the connector CN5805 & CN5801.

SA-PM91DEE

Step 3 : Remove the Power P.C.B as arrow shown.

12.16. Disassembly of DVD Mechanism Unit

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.5.

· Follow the (Step 1) - (Step 4) of Item 12.8.

· Follow the (Step 1) - (Step 3) of Item 12.13.

Step 1 : Remove 1 screw.

Step 3 : Remove 2 screws and lift up DVD Mechanism unit.

12.17. Checking Procedure for Each Major P.C.B.

12.17.1. Replacement of the Power

Amplifier IC

· Replacement of the Power Amplifier IC

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.5.

· Follow the (Step 1) - (Step 4) of Item 12.8.

· Follow the (Step 1) - (Step 3) of Item 12.13.

· Follow the (Step 1) - (Step 2) of Item 12.16.

Step 2 : Release the catches and remove the middle unit as arrow shown.

Step 1 : Remove 1 screw and lift up dampe r gear.

Step 2 : Remove the cassette open spring.

SA-PM91DEE

Step 1 Remove 2 screws.

Step 2 Unsold er the terminals of Power Amp IC (IC500) and

replace the component.

12.18. Procedure for Replacing Deck Holder

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.4.

Step 3 : Pull out the ribs of the cassette holder to the arrow direction.

12.19. Replacing for CD Lid

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.5.

Step 1 : Remove 2 screws and 2 CD lid supports.

SA-PM91DEE

Step 2 : Push the spring as arrow shown.

Step 3 : Remove the CD lid as arrow shown.

12.20. Procedure for Replacing Pinch Roller and Head Block (Deck Mechanism Unit)

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.4.

12.21. Procedure for Replacing Motor, Capstan Belt A, Capstan Belt B, and Winding Belt (Deck Mechanism Unit)

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.4.

· Follow the (Step 1) - (Step 4) of Item 12.20.

SA-PM91DEE

12.22. Procedure for Replacing Parts on Deck Mechanism PCB

· Follow the (Step 1) - (Step 6) of Item 12.2.

· Follow the (Step 1) - (Step 4) of Item 12.3.

· Follow the (Step 1) - (Step 4) of Item 12.4.

12.23. Procedure for removing CR16 mechanism (Precaution)

1. Turn off by pressing power SW in the body.

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