Specification
n Amplifier Section
RMS Output Power both channel driven
10% Total harmonic distortion |
|
1 kHz (Low channel) |
15 W per channel (6 Ω) |
8 kHz (High channel) |
5 W per channel (6 Ω) |
Total Bi-Amp power |
20 W per channel |
Output impedance |
|
Headphone |
16 - 32 Ω |
n FM Tuner Section |
|
Frequency range |
87.50 -108.00 MHz |
|
(50 kHz step) |
Sensitivity |
1.5 µV (IHF) |
S/N 26 dB |
1.25 µV |
Antenna terminals |
75 Ω (unbalanced) |
n AM Tuner Section |
|
Frequency range |
522 - 1629 kHz (9 kHz steps) |
|
520 - 1630 kHz (10 kHz steps) |
Sensitivity |
|
S/N 20 dB (at 999 kHz) |
500 µV/m |
n Cassette Deck Section |
|
Track system |
4 track, 2 channel |
Heads |
|
Record/playback |
Solid permalloy head |
ORDER NO. MD0501014C2
CD Stereo System
SA-PM21E
SA-PM21EB
SA-PM21EG
Colour
(S)... Silver Type
Erasure |
AC erase head |
|
Motor |
DC servo motor |
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Recording system |
AC bias 100 kHz |
|
Erase system |
AC erase 100 kHz |
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Tape speed |
4.8 cm/s |
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Overall frequency response (+3 dB, -6 dB) at DECK OUT |
||
NORMAL |
35 Hz - 14 kHz |
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S/N RATIO |
50 dB (A weighted) |
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Wow and flutter |
0.08% (WRMS) |
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Fast forward and rewind time |
Approx. 120 seconds with C-60 |
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cassette tape |
n CD Section |
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Disc played |
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CD/MP3/CD-R/RW |
8cm/12cm |
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Bit rate |
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MP3 |
32kbps - 320kbps |
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Sampling frequency |
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CD |
44.1 kHz |
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MP3 |
32 kHz, 44.1 kHz, 48 kHz |
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Decoding |
16 bit linear |
|
Pickup |
|
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Beam source / wavelength |
Semiconductor laser / 780nm |
|
Number of channels |
Stereo |
|
Wow and flutter |
Below measurable limit |
|
Digital filter |
8 fs |
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© 2005 Matsushita Electric Industrial Co. Ltd.. All |
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rights reserved. |
Unauthorized copying and |
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distribution is a violation of law. |
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SA-PM21E / SA-PM21EB / SA-PM21EG
D/A converter |
MASH (1 bit DAC) |
Frequency response |
20Hz - 20 kHz (+1, -2dB) |
n General |
|
Power supply |
AC 230 V, 50 Hz (E,EG) |
|
AC 230 - 240 V, 50 Hz (EB) |
Power consumption |
62 W |
Dimensions (W x H x D) |
165 mm x 228 mm x 315.6 mm |
Mass |
3.8 kg |
Power consumption in standby |
0.8 W |
mode |
|
Notes :
1.Specifications are subject to change without notices. Mass and dimensions are approximate.
2.Total harmonic distortion is measured by the digital spectrum analyzer.
n System : SC-PM21E-S
n System : SC-PM21EB-S
n System : SC-PM21EG-S
CONTENTS
Page
1 |
Safety Precautions |
4 |
|
11.19. Procedure for Replacing Cassette Holder |
24 |
|
1.1. GENERAL GUIDELINES |
4 |
|
11.20. Procedure for Replacing Pinch Roller and Head Block |
|
2 |
Caution for AC Mains Lead |
5 |
|
(Cassette Mechanism Unit) |
24 |
3 |
Before Repair and Adjustment |
6 |
|
11.21. Procedure for Replacing Motor, Capstan Belt A, Capstan |
|
4 |
Protection Circuitry |
6 |
|
Belt B, and Winding Belt (Cassette Mechanism Unit) |
25 |
5 |
Handling the Lead-free Solder |
6 |
|
11.22. Procedure for Replacing Parts on Mechanism PCB |
27 |
|
5.1. About lead free solder (PbF) |
6 |
|
11.23. Handling of cassette tape jam |
27 |
6 |
Precaution of Laser Diode |
7 |
12 |
Service Positions |
29 |
7 |
Handling Precautions For Traverse Deck |
8 |
|
12.1. Checking procedure |
29 |
8 |
Accessories |
9 |
|
12.2. Checking the major P.C.B. |
29 |
9 |
Operation Procedures |
10 |
13 |
Self Diagnostic Function |
30 |
10 |
Information on CD & MP3 |
11 |
|
13.1. Self-diagnosis Function |
30 |
11 |
Assembling and Disassembling |
12 |
|
13.2. Clearing all error code |
32 |
|
11.1. Disassembly flow chart |
12 |
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13.3. Cancelling the Self-Diagnostic mode |
32 |
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11.2. Disassembly of Side Panel L & R |
13 |
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13.4. Setting of doctor mode |
32 |
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11.3. Disassembly of Top Cabinet Unit |
13 |
14 |
Procedure for Checking Operation of Individual Parts of |
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11.4. Disassembly of Deck Mechanism and Tape Eject P.C.B 13 |
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Cassette Mechanism Unit |
37 |
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11.5. Disassembly of Headphone P.C.B |
14 |
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14.1. Operation Check with Cassette Tape |
37 |
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11.6. Disassembly of Front Panel Assembly |
14 |
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14.2. Operation Check without Cassette Tape |
37 |
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11.7. Disassembly of Panel P.C.B |
15 |
15 |
Measurement And Adjustments |
39 |
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11.8. Disassembly of Rear Cabinet |
15 |
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15.1. Cassette Deck Section |
39 |
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11.9. Disassembly of Tuner Pack |
15 |
16 |
Voltage Measurement and Waveform Chart |
41 |
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11.10. Disassembly of Main P.C.B |
16 |
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16.1. Voltage Measurement |
41 |
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11.11. Disassembly of Power P.C.B |
16 |
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16.2. Waveform |
44 |
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11.12. Disassembly of Speaker Terminal P.C.B |
17 |
17 |
Block Diagram |
45 |
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11.13. Disassembly of Transformer P.C.B |
17 |
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17.1. CD Servo Block |
45 |
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11.14. Disassembly of CD Mechanism |
18 |
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17.2. Main Block |
47 |
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11.15. Checking Procedure for Each Major P.C.B. |
19 |
18 |
Notes of Schematic Diagram |
51 |
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11.16. Procedures of Replacing Traverse Base (Unit), Driving |
|
19 |
Schematic Diagram |
52 |
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Gear, and Cam Gear (CD Mechanism Unit) |
19 |
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19.1. CD Servo Circuit |
52 |
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11.17. Procedures for Replacing Optical Pickup (CD Mechanism |
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19.2. Main Circuit and Tuner Extent Circuit |
54 |
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Unit) |
22 |
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19.3. Panel Circuit |
58 |
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11.18. Procedures for Replacement Traverse Gear A and |
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19.4. Deck Circuit, Deck Mechanism Circuit and Tape Eject |
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Traverse Gear B (CD Mechanism Unit) |
23 |
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Circuit |
59 |
2
SA-PM21E / SA-PM21EB / SA-PM21EG
|
19.5. Power Circuit |
61 |
23 |
Terminal Function of IC s |
74 |
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19.6. Transformer Circuit, Headphone Circuit and Speaker |
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23.1. IC702 (MN6627953HB) Servo processor/ Digital signal |
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Terminal Circuit |
62 |
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processor/ Digital filter/ D/A converter |
74 |
20 |
Printed Circuit Board |
63 |
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23.2. IC703 (BA5948FPE2) IC 4CH DRIVE |
74 |
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20.1. CD Servo P.C.B. |
63 |
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23.3. IC803 (MN101C49GHA) MICRO PROCESSOR |
75 |
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20.2. Main P.C.B. |
64 |
24 |
Troubleshooting Flowchart (CD Section Circuit) |
77 |
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20.3. Tuner Extent P.C.B, Headphone P.C.B and Speaker |
|
25 |
Parts Location and Replacement Parts List |
79 |
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Terminal P.C.B. |
66 |
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25.1. Deck Mechanism |
80 |
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20.4. Panel P.C.B. |
67 |
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25.2. CD Loading Mechanism |
82 |
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20.5. Deck P.C.B and Deck Mechanism P.C.B. |
68 |
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25.3. Cabinet |
84 |
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20.6. Power P.C.B. |
69 |
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25.4. Electrical Part List |
87 |
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20.7. Transformer P.C.B and Tape Eject P.C.B. |
70 |
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25.5. Packaging Materials & Accessories Parts List |
93 |
21 |
Wiring Connection Diagram |
71 |
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25.6. Packaging |
93 |
22 |
Illustration of IC , Transistors and Diodes |
73 |
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|
3
SA-PM21E / SA-PM21EB / SA-PM21EG
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 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.
4
SA-PM21E / SA-PM21EB / SA-PM21EG
2 Caution for AC Mains Lead
5
SA-PM21E / SA-PM21EB / SA-PM21EG
3 Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C839 & C840 through a 10Ω, 1W resistor to ground.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices. After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
·Current consumption at AC 230V, 50 Hz in NO SIGNAL mode (volume min) should be ~150 mA (E/EG).
·Current consumption at AC 230V-240V, 50 Hz in NO SIGNAL mode (volume min) should be ~150 mA (EB).
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.
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).
·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.
6
SA-PM21E / SA-PM21EB / SA-PM21EG
6 Precaution of Laser Diode
Caution :
This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick up lens. Wavelength : 780 nm
Maximum output radiation power from pick up : 100 µW/VDE
Laser radiation from pick up unit is safety level, but be sure the followings:
1.Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous.
2.Do not adjust the variable resistor on the pick up unit. It was already adjusted.
3.Do not look at the focus lens using optical instruments.
4.Recommend not to look at pick up lens for a long time.
ACHTUNG :
Dieses Produkt enthält eine Laserdiode. Im eingeschalteten Zustand wird unsichtbare Laserstrahlung von der Lasereinheit abgestrahlt.
Wellenlänge : 780nm
Maximale Strahlungsleistung der Lasereinheit :100µW/VDE
Die Strahlung an der Lasereinheit ist ungefährlich, wenn folgende Punkte beachtet werden:
1.Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode gefährlich ist.
2.Den werkseitig justierten Einstellregler der Lasereinhit nicht verstellen.
3.Nicht mit optischen Instrumenten in die Fokussierlinse blicken.
4.Nicht über längere Zeit in die Fokussierlinse blicken.
ADVARSEL :
I dette a apparat anvendes laser.
CAUTION!
THIS PRODUCT UTILIZES A LASER.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
n Use of Caution Labels
7
SA-PM21E / SA-PM21EB / SA-PM21EG
7 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.
3.Take care not to apply excessive stress to the flexible board (FFC board) (Fig 7.1).
4.Do not turn the variable resistor (laser power adjustment). It has already been adjusted.
Fig 7.2
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.
Fig 7.1
l Grounding for electrostatic breakdown prevention
1.Human body grounding (Fig 7.2)
Use the anti-static wrist strap to discharge the static electricity from your body.
2.Work table grounding (Fig 7.2)
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).
8
SA-PM21E / SA-PM21EB / SA-PM21EG
8 Accessories
Note : Refer to Packaging Materials & Accessories (Section 25.5) for the part number.
Remote control
AC cord (For EB only)
AC cord (For E &
EG only)
FM indoor antenna
AM loop antenna
Antenna plug adaptor (For EB only)
9
SA-PM21E / SA-PM21EB / SA-PM21EG
9 Operation Procedures
10
SA-PM21E / SA-PM21EB / SA-PM21EG
10 Information on CD & MP3
11
SA-PM21E / SA-PM21EB / SA-PM21EG
11 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”.
ACHTUNG:
Die Lasereinheit nicht zerlegen.
Die Lasereinheit darf nur gegen eine vom Hertsteller spezifizierte Einheit ausgetauscht werden.
11.1. 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.
12
11.2.Disassembly of Side Panel L & R
Step 1 : Remove 4 screws. Step 2 : Remove 1 screw.
Step 3 : Remove the side panel (R) as arrow shown (Be careful of the catches).
Step 4 : Remove 4 screws. Step 5 : Remove 1 screw.
Step 6 : Remove the side panel (L) as arrow shown (Be careful of the catches).
11.3.Disassembly of Top Cabinet Unit
· Follow the (Step 1) - (Step 6) of Item 11.2.
SA-PM21E / SA-PM21EB / SA-PM21EG
Step 1 : Remove 1 screw.
Step 2 : Release catches at both ends.
Step 3 : Lift up the top cabinet unit, push backward as arrow shown and flip top cabinet unit sideway.
Step 4 : Detach the connectors CN504A and FFC CN804.
11.4.Disassembly of Deck Mechanism and Tape Eject P.C.B
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
13
SA-PM21E / SA-PM21EB / SA-PM21EG
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.
11.5.Disassembly of Headphone P.C.B
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
Step 1 : Remove 1 screw.
Step 2 : Release the clutch.
11.6.Disassembly of Front Panel Assembly
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
Step 1 : Detach the connector CN900B .
14
Step 2 : Detach the FFC CN901B.
Step 3 : Release 3 Claws.
Step 4 : Remove the front panel assembly as arrow shown.
11.7. Disassembly of Panel P.C.B
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
·Follow the (Step 1) - (Step 4) of Item 11.6.
SA-PM21E / SA-PM21EB / SA-PM21EG
Step 1 : Remove 10 screws.
Step 2 : Remove the volume knob.
11.8. Disassembly of Rear Cabinet
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
Step 1 : Remove 6 screws.
Step 2 : Remove the rear cabinet as arrow shown.
11.9. Disassembly of Tuner Pack
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
·Follow the (Step 1) - (Step 2) of Item 11.8.
15
SA-PM21E / SA-PM21EB / SA-PM21EG
Step 1 : Detach the connector CN805A and remove the tuner pack as arrow shown.
11.10. Disassembly of Main P.C.B
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
·Follow the (Step 1) - (Step 4) of Item 11.6.
·Follow the (Step 1) - (Step 2) of Item 11.8.
Step 1 : Detach the FFC CN801.
Step 2 : Detach the connector CN803A, CN808A. Step 3 : Detach the connector CP800.
Step 4 : Remove the Main P.C.B as arrow shown.
11.11. Disassembly of Power P.C.B
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
·Follow the (Step 1) - (Step 2) of Item 11.8.
Step 1 : Detach the connector CN505B.
16
SA-PM21E / SA-PM21EB / SA-PM21EG
Step 2 : Remove 1 screw.
Step 3 : Detach the connector CN503A, CN508A, CN501B. Step 4 : Remove the Power P.C.B as arrow shown.
11.12.Disassembly of Speaker Terminal P.C.B
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
·Follow the (Step 1) - (Step 2) of Item 11.8.
·Follow the (Step 1) - (Step 2) of Item 11.10.
·Follow the (Step 2) - (Step 4) of Item 11.11.
Step 1 : Remove 1 screw. Step 2 : Release the clutch.
Step 3 : Remove the Speaker Terminal P.C.B as arrow shown.
11.13.Disassembly of Transformer P.C.B
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
·Follow the (Step 1) - (Step 2) of Item 11.8.
·Follow the (Step 1) - (Step 4) of Item 11.11.
Step 1 : Detach the connector CN900B.
Step 2 : Remove 4 screws.
17
SA-PM21E / SA-PM21EB / SA-PM21EG
11.14.Disassembly of CD Mechanism
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
·Follow the (Step 1) - (Step 4) of Item 11.6.
·Follow the (Step 1) - (Step 2) of Item 11.8 .
·Follow the (Step 1) - (Step 4) of Item 11.10.
Step 1 : Remove 4 screws.
Step 2 : Remove the Main P.C.B Support.
18
11.15.Checking Procedure for Each Major P.C.B.
11.15.1.Replacement of the Power Amplifier IC
·Replacement of the Power Amplifier IC
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
·Follow the (Step 1) - (Step 2) of Item 11.8.
·Follow the (Step 1) - (Step 4) of Item 11.11.
Step 1 Remove 5 screws.
Step 2 Unsolder the terminals of Power Amp IC (IC300, IC500) and replace the component.
Step 3 Unsolder the terminals of Transistor (Q503) and replace the component.
SA-PM21E / SA-PM21EB / SA-PM21EG
11.16.Procedures of Replacing Traverse Base (Unit), Driving Gear, and Cam Gear (CD Mechanism Unit)
11.16.1. Disassembly of the Disc Tray.
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
·Follow the (Step 1) - (Step 4) of Item 11.6.
·Follow the (Step 1) - (Step 2) of Item 11.8 .
·Follow the (Step 1) - (Step 4) of Item 11.10.
·Follow the (Step 1) - (Step 2) of Item 11.14.
19
SA-PM21E / SA-PM21EB / SA-PM21EG
20
SA-PM21E / SA-PM21EB / SA-PM21EG
21
SA-PM21E / SA-PM21EB / SA-PM21EG
11.17. Procedures for Replacing Optical Pickup (CD Mechanism Unit)
· Follow the (Step 1) - (Step 6) of Item 11.2.
· Follow the (Step 1) - (Step 4) of Item 11.3.
· Follow the (Step 1) - (Step 4) of Item 11.6.
· Follow the (Step 1) - (Step 2) of Item 11.8 .
· Follow the (Step 1) - (Step 4) of Item 11.10.
· Follow the (Step 1) - (Step 2) of Item 11.14.
· Follow the (Step 1) - (Step 4) of Item 11.16.1.
22
SA-PM21E / SA-PM21EB / SA-PM21EG
11.18.Procedures for Replacement Traverse Gear A and Traverse Gear B (CD Mechanism Unit)
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
·Follow the (Step 1) - (Step 4) of Item 11.6.
·Follow the (Step 1) - (Step 2) of Item 11.8 .
·Follow the (Step 1) - (Step 4) of Item 11.10.
·Follow the (Step 1) - (Step 2) of Item 11.14.
·Follow the (Step 1) - (Step 2) of Item 11.16.1.
23
SA-PM21E / SA-PM21EB / SA-PM21EG
11.19.Procedure for Replacing Cassette Holder
·Follow the (Step 1) - (Step 6) of Item 11.2.
·Follow the (Step 1) - (Step 4) of Item 11.3.
·Follow the (Step 1) - (Step 4) of Item 11.4.
11.20. Procedure for Replacing Pinch Roller and Head Block (Cassette Mechanism Unit)
· Follow the (Step 1) - (Step 6) of Item 11.2.
· Follow the (Step 1) - (Step 4) of Item 11.3.
24
SA-PM21E / SA-PM21EB / SA-PM21EG
· Follow the (Step 1) - (Step 4) of Item 11.4.
11.21. Procedure for Replacing Motor, Capstan Belt A, Capstan Belt B, and Winding Belt (Cassette Mechanism Unit)
· Follow the (Step 1) - (Step 6) of Item 11.2.
· Follow the (Step 1) - (Step 4) of Item 11.3.
· Follow the (Step 1) - (Step 4) of Item 11.4.
· Follow the (Step 1) - (Step 4) of Item 11.20.
25
SA-PM21E / SA-PM21EB / SA-PM21EG
26
SA-PM21E / SA-PM21EB / SA-PM21EG
11.22. Procedure for Replacing Parts on Mechanism PCB
· Follow the (Step 1) - (Step 6) of Item 11.2.
· Follow the (Step 1) - (Step 4) of Item 11.3.
· Follow the (Step 1) - (Step 4) of Item 11.4.
11.23. Handling of cassette tape jam
· Follow the (Step 1) - (Step 6) of Item 11.2.
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SA-PM21E / SA-PM21EB / SA-PM21EG
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