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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72
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97
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3
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.
4
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).
5
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.
6
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
7
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
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
9
SA-PM91DEE
9 Operation Procedures
10
SA-PM91DEE
11
SA-PM91DEE
10 Disc Information
12
SA-PM91DEE
13
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:
14
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?
ConventionalHighMAT
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.
15
SA-PM91DEE
16
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.
17
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”.
18
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.
19
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.
20
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.
21
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.
22
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.
23
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.
24
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.
25
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.
26
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.
27
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.
28
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
29
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.
30
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