ORDER NO. MD0412578C1 A6
Specification
n Amplifier Section
Power output
10% Total harmonic distortion
60 Hz - 3 kHz, both channels driven (Low channel)
3 kHz - 16 kHz, both channels driven (High channel)
Total Bi-Amp power Power output
10% Total harmonic distortion
1 kHz, both channels driven (Low channel)
8 kHz, both channels driven (High channel)
Total Bi-Amp power Output Impedance Headphone
n FM Tuner Section
Frequency range
Sensitivity
S/N 26 dB
Antenna terminal(s)
35 W per channel (6 Ω)
35 W per channel (6 Ω)
70 W per channel
40 W per channel (6 Ω)
40 W per channel (6 Ω)
80 W per channel
16 Ω - 32 Ω
87.5 MHz - 108.0 MHz
(100 kHz steps)
87.9 MHz - 107.9 MHz
(200 kHz steps)
1.02 µV (IHF)
1.00 µV
75 Ω (unbalanced)
CD Stereo System
SA-PM31P
SA-PM31PC
Colour
(S)... Silver Type
n AM Tuner Section |
|
Frequency range |
520 kHz - 1710 kHz (10 kHz |
|
steps) |
Sensitivity |
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S/N 20 dB (at 1000 kHz) |
900 µV/m |
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 |
Erasing system |
AC erase 100 kHz |
Tape speed |
4.8 cm/s |
Overall frequency response (+3 dB, -6 dB at DECK OUT) |
|
NORMAL (TYPE I) |
35 Hz - 14 kHz |
S/N RATIO |
42.64 dB (A weighted) |
Wow and flutter |
0.08% (WRMS) |
Fast forward and rewind time |
Approx. 120 seconds with C-60 |
|
cassette tape |
n CD Section
Disc
© 2004 Matsushita Electric Industrial Co. Ltd.. All rights reserved. Unauthorized copying and distribution is a violation of law.
SA-PM31P / SA-PM31PC |
|
|
CD, CD-R, CD-RW, MP3 |
8 cm/12 cm (3-3/20” / 4- |
|
|
|
73/100”) |
Sampling frequency |
44.1 kHz |
|
Decoding |
16/20/24 bit linear |
|
Beam source/wavelength |
Semiconductor laser / 780 nm |
|
Number of channels |
Stereo |
|
Frequency response |
20 Hz - 20 kHz (+1dB, -2dB) |
|
Wow and flutter |
Below measurable limit |
|
Digital filter |
8 fs |
|
D/A converter |
MASH (1 bit DAC) |
|
MP3 |
|
|
Bit rate |
32 kbps - 320 kbps |
|
Sampling frequency |
32kHz, 44.1kHz, 48kHz |
|
n General |
|
|
Power supply |
AC 120 V, 60 Hz |
|
Power consumption |
135 W |
Dimensions (W x H x D) |
175 x 254 x 390.7 mm |
|
(6-89/100” x 10” x 15-19/50”) |
Mass |
5.44 kg (11.99 lbs.) |
Power consumption in standby mode: |
0.4 W |
n System: SC-PM31P-S |
Music Center: SA-PM31P-S |
|
Speaker: SB-PM31P-SJ |
n System: SC-PM31PC-S |
Music Center: SA-PM31PC-S |
|
Speaker: SB-PM31P-SJ |
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.
3.The labels “HIGH” and “LOW” on the rear of the speakers refer to High frequency and Low frequency.
CONTENTS
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Page |
1 |
Safety Cautions |
4 |
|
1.1. GENERAL GUIDELINES |
4 |
2 |
Before Repair and Adjustment |
5 |
3 |
Protection Circuitry |
5 |
4 |
Handling the Lead-free Solder |
5 |
|
4.1. About lead free solder (PbF) |
5 |
5 |
Precaution of Laser Diode |
6 |
6 |
Handling Precautions For Traverse Deck |
7 |
7 |
Accessories |
8 |
8 |
Operating Procedures |
9 |
9 |
Assembling and Disassembling |
11 |
|
9.1. Disassembly flow chart |
11 |
|
9.2. Disassembly of Side Panel L & R |
12 |
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9.3. Disassembly of Top Cabinet Unit |
12 |
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9.4. Disassembly of Deck P.C.B. and Tape Eject P.C.B. |
12 |
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9.5. Disassembly of Front Panel Assembly |
13 |
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9.6. Disassembly of Main Control P.C.B., Function P.C.B. and |
|
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Power-In P.C.B. |
14 |
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9.7. Disassembly of Panel P.C.B. |
14 |
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9.8. Disassembly of Rear Panel |
15 |
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9.9. Disassembly of Main P.C.B. |
15 |
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9.10. Disassembly of Transformer P.C.B. |
16 |
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9.11. Disassembly of Tuner Pack |
16 |
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9.12. Disassembly of Power P.C.B |
17 |
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9.13. Disassembly of CR16 Mechanism |
17 |
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9.14. Replacement of CD Lid |
18 |
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9.15. Replacement of Cassette Lid |
19 |
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9.16. Replacement of the Power IC and Transistors. |
20 |
|
Page |
9.17. Procedure for Replacing Pinch Roller and Head Block |
|
(Cassette Mechanism Unit) |
21 |
9.18. Procedure for Replacing Motor, Capstan Belt A, Capstan |
|
Belt B, and Winding Belt (Cassette Mechanism Unit) |
21 |
9.19. Procedure for Replacing Parts on Mechanism PCB |
23 |
9.20. Replacement of CD traverse deck |
23 |
9.21. Replacement of optical pickup unit (CD mechanism) |
25 |
9.22. Replacement of a traverse gear A and a traverse gear B |
|
|
26 |
9.23. Procedure for removing CD loading mechanism |
27 |
9.24. CR16 mechanism disassembly procedure |
27 |
9.25. CR16 MECHANISM ASSEMBLY PROCEDURE |
34 |
9.26. Disassembly of traverse mechanism |
46 |
9.27. Handling of Cassette Tape jam |
47 |
10 Service Positions |
48 |
10.1. Checking procedure |
48 |
10.2. Checking the major P.C.B. |
48 |
11 Self-Diagnostic Display Function |
49 |
11.1. Entering into Self-Diagnostic Mode |
49 |
11.2. Clearing Self-Diagnostic Memory |
51 |
11.3. Displaying Self-Diagnostic Results |
51 |
11.4. Error Code Table |
52 |
11.5. Cassette Mechanism Self-Diagnostic Mode |
52 |
11.6. Changer Reliability Test Mode |
53 |
11.7. Changer Operation Checking |
53 |
11.8. CR16 Mechanism Ageing Mode |
54 |
12 Procedure for Checking Operation of Individual Parts of |
|
Cassette Mechanism Unit |
55 |
12.1. Operation Check with Cassette Tape |
55 |
2
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|
SA-PM31P / SA-PM31PC |
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12.2. Operation Check without Cassette Tape |
55 |
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18.3. Main Control P.C.B. and Panel P.C.B. |
89 |
|
13 |
Measurement And Adjustments |
57 |
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18.4. Power In P.C.B., Function P.C.B. and Deck Mechanism |
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13.1. Tuner/CD Sections |
57 |
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P.C.B. |
90 |
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13.2. Cassette Deck Section |
57 |
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18.5. Deck P.C.B. and Tape Eject P.C.B. |
91 |
|
14 |
Voltage Measurement and Waveform Chart |
59 |
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18.6. CD Loading P.C.B. |
92 |
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14.1. Waveform |
62 |
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18.7. Power P.C.B. |
93 |
|
15 |
Block Diagram |
63 |
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18.8. Transformer P.C.B. |
94 |
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15.1. CD Servo Block |
63 |
19 |
Wiring Connection Diagram |
95 |
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15.2. Main Block |
65 |
20 |
Illustration of IC , Transistors and Diodes |
97 |
|
16 |
Notes of Schematic Diagram |
70 |
21 |
Terminal Function of IC s |
98 |
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17 |
Schematic Diagram |
71 |
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21.1. IC702 (MN6627953HB) Servo processor/ Digital signal |
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17.1. CD Servo Circuit |
71 |
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processor/ Digital filter/ D/A converter |
98 |
|
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17.2. Main Circuit |
73 |
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21.2. IC703 (BA5948FPE2) IC 4CH DRIVE |
98 |
|
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17.3. Main Control Circuit, Panel Circuit, Power-In Circuit and |
|
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21.3. IC302 (C2CBJG000574) MICRO PROCESSOR |
99 |
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Function Circuit |
77 |
22 |
Troubleshooting Flowchart (CD Section Circuit) |
101 |
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17.4. Deck Circuit, Deck Mechanism Circuit and Tape Eject |
|
23 |
Parts Location and Replacement Parts List |
103 |
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Circuit |
79 |
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23.1. Deck Mechanism |
104 |
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17.5. Power Circuit |
81 |
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23.2. CD Loading Mechanism |
106 |
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17.6. Transformer Circuit |
84 |
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23.3. Cabinet |
111 |
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17.7. CD Loading Circuit |
85 |
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23.4. Electrical Part List |
114 |
|
18 |
Printed Circuit Board |
86 |
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23.5. Packaging Materials & Accessories Parts List |
122 |
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18.1. CD Servo P.C.B. |
86 |
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23.6. Packaging |
122 |
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18.2. Main P.C.B. |
87 |
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|
3
SA-PM31P / SA-PM31PC
1 Safety Cautions
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.
(This “Safety Precaution” is applied only in U.S.A.)
1.Before servicing, unplug the power cord to prevent an electric shock.
2.When replacing parts, use only manufacturer’s recommended components for safety.
3.Check the condition of the power cord. Replace if wear or damage is evident.
4.After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5.Before returning the serviced equipment to the customer, be sure to make the following insulation resistance test to prevent the customer from being exposed to a shock hazard.
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 
.
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.
1.1.3.CAUTION FOR FUSE REPLACEMENT
4
SA-PM31P / SA-PM31PC
2 Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C506, C507, C508, C600, C601, C602, C620 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 120V, 60 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 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.
4 Handling the Lead-free Solder
4.1.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).
·When 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.
5
SA-PM31P / SA-PM31PC
5 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 label (Except for U.S.A.)
6
SA-PM31P / SA-PM31PC
6 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).
l 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 (Fig 1).
3.Take care not to apply excessive stress to the flexible board (FPC board).
4.Do not turn the variable resistor (laser power adjustment). It has already been adjusted.
Fig 1
l Grounding for electrostatic breakdown prevention
1.Human body grounding (Fig 2)
Use the anti-static wrist strap to discharge the static electricity from your body.
2.Work table grounding (Fig 2)
Put a conductive 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).
Fig 2
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.
7
SA-PM31P / SA-PM31PC
7 Accessories
Note : Refer to Packaging Materials & Accessories for the part number.
AC power cord
FM indoor antenna
AM loop antenna
Remote control
8
SA-PM31P / SA-PM31PC
8 Operating Procedures
9
SA-PM31P / SA-PM31PC
10
SA-PM31P / SA-PM31PC
9 Assembling and Disassembling
“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”.
9.1.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.
11
SA-PM31P / SA-PM31PC
9.2.Disassembly of Side Panel L & R
Step 1 : Remove 1 screw.
Step 2 : Lift up the top Cabinet as arrow shown (be careful of the catches).
Step 1 : Remove 5 screws. Step 2 : Remove 1 screw.
Step 3 : Remove the side panel as arrow shown (Be careful of the catches).
Step 4 : Remove 5 screws. Step 5 : Remove 1 screw.
Step 6 : Remove the side panel as arrow shown (Be careful of the catches).
9.3.Disassembly of Top Cabinet Unit
· Follow the (Step 1) - (Step 6) of Item 9.2.
Step 3 : Place the top cabinet as shown and detach the connector CN1305.
9.4.Disassembly of Deck P.C.B. and Tape Eject P.C.B.
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
12
SA-PM31P / SA-PM31PC
Step 1 : Remove 1 screw.
Step 2 : Release the clutch.
Step 3 : Remove 4 screws.
Step 4 : Push the lever as arrow shown to open the cassette lid and remove the Deck Mechanism Unit.
9.5.Disassembly of Front Panel Assembly
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
Step 1 : Detach the connector CN308.
Step 2 : Detach the connector CN505.
13
SA-PM31P / SA-PM31PC
Step 2 : Release 2 clutches and remove both Function P.C.B. and Power-In P.C.B.
· Disassembly of Main Control P.C.B.
Step 3 : Release 2 catches and remove the front panel as |
Step 3 : Remove 2 screws to remove the shield plate. |
|
Step 4 : Remove 2 screws and flip the Main Control P.C.B. as |
||
arrows shown. |
||
arrow shown. |
||
Step 4 : Release the catch at the bottom cabinet as shown. |
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|
9.6.Disassembly of Main Control P.C.B., Function P.C.B. and Power-In P.C.B.
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 4) of Item 9.5.
·Disassembly of Function P.C.B. and Power-In P.C.B.
Step 5 : Detach the connector CN603A.
9.7. Disassembly of Panel P.C.B.
· Follow the (Step 1) - (Step 6) of Item 9.2.
· Follow the (Step 1) - (Step 3) of Item 9.3.
· Follow the (Step 1) - (Step 4) of Item 9.5.
· Follow the (Step 1) - (Step 5) of Item 9.6.
Step 1 : Remove 5 screws.
14
SA-PM31P / SA-PM31PC
Step 1 : Remove the volume knob.
Step 2 : Remove 7 screws.
Step 3 : Release 3 clutches and remove the Panel P.C.B. as arrow shown.
9.8.Disassembly of Rear Panel
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
Step 1 : Detach the connector CN303.
Step 2 : Remove 9 screws.
Step 3: Remove the rear panel as arrows shown (Be careful of the catches).
9.9.Disassembly of Main P.C.B.
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 3) of Item 9.8.
15
SA-PM31P / SA-PM31PC
Step 1 : Detach the connectors CN308, CN305 and CN306 .
Step 2 : Detach the connectors CN304 (pull the catch as arrow shown), CN301 and CN302 and pull out the Main P.C.B as arrow shown.
9.10.Disassembly of Transformer P.C.B.
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 3) of Item 9.8.
Step 1 : Detach the connectors CN505 and CN506.
Step 2 : Remove 4 screws and pull out the Transformer P.C.B. as arrow shown.
9.11. Disassembly of Tuner Pack
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 3) of Item 9.8.
16
Step 1 : Detach the connector CN101 and remove the tuner pack as arrow shown.
9.12. Disassembly of Power P.C.B
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 4) of Item 9.5.
·Follow the (Step 1) - (Step 3) of Item 9.8.
·Follow the (Step 1) - (Step 2) of Item 9.9.
·Follow the (Step 1) - (Step 2) of Item 9.10.
Step 1 : Remove 4 screws.
Step 2 : Remove the Power P.C.B. as arrow shown (be careful of the catch).
9.13.Disassembly of CR16 Mechanism
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 4) of Item 9.5.
SA-PM31P / SA-PM31PC
Step 1 : Remove 2 screws.
Step 2 : Detach the connectors CN305 and CN306.
Step 3 : Remove the tape which used to secure the FFC connectors.
17
SA-PM31P / SA-PM31PC
Step 4 : Release the catches and remove the middle block as arrow shown.
Step 5 : Remove 2 screws and remove the CD Mechanism Unit from the bottom chassis.
Step 1 : Remove 2 screws and the 2 CD lid supports.
Step 2 : Push the spring as arrow shown.
9.14. Replacement of CD Lid
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 4) of Item 9.5.
18
Step 3 : Remove the CD lid as arrow shown.
9.15. Replacement of Cassette Lid
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 4) of Item 9.4.
Step 1 : Remove 1 screw and the damper gear.
Step 2 : Remove the cassette open spring as arrows shown in order.
SA-PM31P / SA-PM31PC
Step 3 : Pull both sides’ cassette holders to the direction of the arrows shown.
Step 4 : Remove the cassette lid as arrow shown.
19
SA-PM31P / SA-PM31PC
9.16. Replacement of the Power IC and Transistors.
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 3) of Item 9.8.
·Follow the (Step 1) - (Step 2) of Item 9.9.
·Follow the (Step 1) - (Step 2) of Item 9.10.
·Follow the (Step 1) - (Step 2) of Item 9.12.
Step 1 : Remove 2 screws.
Step 2 : Remove 2 screws.
Step 3 : Unsolder the Power IC500.
Step 4 : Unsolder the Transistors Q501 and Q502.
20
SA-PM31P / SA-PM31PC
9.17.Procedure for Replacing Pinch Roller and Head Block (Cassette Mechanism Unit)
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 4) of Item 9.4.
9.18.Procedure for Replacing Motor, Capstan Belt A, Capstan Belt B, and Winding Belt (Cassette Mechanism Unit)
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 4) of Item 9.4.
·Follow the (Step 1) - (Step 5) of Item 9.17.
21
SA-PM31P / SA-PM31PC
22
SA-PM31P / SA-PM31PC
9.19. Procedure for Replacing Parts on Mechanism PCB
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 4) of Item 9.4.
·Follow the (Step 1) - (Step 5) of Item 9.17.
9.20. Replacement of CD traverse deck
· Follow the (Step 1) - (Step 6) of Item 9.2.
23
SA-PM31P / SA-PM31PC
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 4) of Item 9.5.
·Follow the (Step 1) - (Step 5) of Item 9.13.
24
SA-PM31P / SA-PM31PC
9.21. Replacement of optical pickup unit (CD mechanism)
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 4) of Item 9.5.
·Follow the (Step 1) - (Step 5) of Item 9.13.
·Follow the (Step 1) - (Step 2) of Item 9.20.
25
SA-PM31P / SA-PM31PC
9.22. Replacement of a traverse gear A and a traverse gear B
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 4) of Item 9.5.
26
SA-PM31P / SA-PM31PC
·Follow the (Step 1) - (Step 5) of Item 9.13.
·Follow the (Step 1) - (Step 2) of Item 9.20.
·Follow the (Step 1) - (Step 12) of Item 9.21.
9.23. Procedure for removing CD loading mechanism
1.Turn off by pressing power SW in the body.
2.Unplug AC power cord after the indication of [GOOD-BYE], then disassemble the body.
3.Disassemble the body, and take out CD loading mechanism.
4.Perform disassembly according to the following procedure for disassembly.
9.24. CR16 mechanism disassembly procedure
9.24.1. Gear for servicing information
·This unit has a gear which used for checking items (open/close of disc tray, up/down operation of traverse unit by manually) when servicing. (For gear information, that is described on the items for disassembly procedures.)
·For preparation of gear (for servicing), perform the procedures as follows.
·In case of re-servicing the same set, the “ gear for servicing”
may be took off because it had been used. So, the “gear for servicing” must be stored.
1.Remove the gear attached to top cover of CD loading mechanism.
27
SA-PM31P / SA-PM31PC
2. Insert the hexgonal wrench (2.5mm) into the gear.
9.24.2. Replacement for the disc tray
·Follow the (Step 1) - (Step 6) of Item 9.2.
·Follow the (Step 1) - (Step 3) of Item 9.3.
·Follow the (Step 1) - (Step 4) of Item 9.5.
·Follow the (Step 1) - (Step 5) of Item 9.13.
28
SA-PM31P / SA-PM31PC
29
SA-PM31P / SA-PM31PC
9.24.3. Replacement for the traverse deck
· Follow the (Step 1) - (Step 6) |
of Item 9.2. |
|||
· Follow the (Step 1) |
- (Step 3) |
of Item 9.3. |
||
· Follow the (Step 1) |
- (Step 4) |
of Item 9.5. |
||
· Follow the (Step |
1) |
- (Step |
5) |
of Item 9.13. |
· Follow the (Step |
1) - (Step |
10) of item 9.24.2. |
||
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