ORDER NO. MD0412589C1
A6
CD Stereo System
SA-AK630P
SA-AK630PC
Colour
(K)... Black Type
Specifications
n AMPLIFIER SECTION
RMS output power
THD 10%, both channels driven 1 kHz
(Low channel) |
75 W per channel (5 Ω) |
10 kHz |
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(High channel) |
70 W per channel (5 Ω) |
80 Hz |
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(Subwoofer channel) |
160 W (8 Ω) |
Total power output |
450 W |
FTC output power |
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THD 10%, both channels driven |
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100 Hz-3 kHz |
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(Low channel) |
59 W per channel (5 Ω) |
3 kHz-10 kHz |
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(High channel) |
57 W per channel (5 Ω) |
50 Hz-100 Hz |
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(Subwoofer channel) |
130 W (8 Ω) |
Total FTC power |
362 W |
n FM/AM TUNER, TERMINALS SECTION |
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Preset station |
FM 15 stations |
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AM 15 stations |
Frequency Modulation |
(FM) |
Frequency range |
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87.9 - 107.9 MHz (200 kHz steps) |
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87.5 - 108.0 MHz (100 kHz steps) |
Sensitivity |
2.5 µV (IHF) |
S/N 26 dB |
2.2 µV |
Antenna terminal(s) |
75 Ω (unbalanced) |
Amplitude Modulation |
(AM) |
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Frequency range |
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520 - 1710 kHz (10 kHz steps) |
Sensitivity |
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S/N 20 dB (at 1000 kHz) |
560 µV/m |
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Audio performance (Amplifier) |
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Input sensitivity/Input |
impedance |
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Aux |
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250 mV,14.7 kΩ |
Phone jack |
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Terminal |
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Stereo, 3.5 mm (1/8”) jack |
n CASSETTE DECK SECTION |
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Track system |
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4 track, 2 channel |
Heads |
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Record/playback |
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Solid permalloy head |
Erasure |
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Double gap ferrite head |
Motor |
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DC servo motor |
Recording system |
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AC bias 100 kHz |
Erasing system |
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AC erase 100 kHz |
Tape speed |
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4.8 cm/s (1 7/8 ips) |
Overall frequency response (+3 dB, -6 dB at DECK OUT) |
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NORMAL |
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35 Hz - 14 kHz |
S/N ratio |
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50 dB (A weighted) |
Wow and flutter |
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0.18 % (WRMS) |
Fast forward and rewind time |
Approx. 120 seconds with |
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C-60 cassette tape |
n DISC SECTION |
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Discs played [8 cm (3”) or 12 cm (5”)]
(1)CD-Audio (CD-DA)
(2)CD-R/RW (CD-DA, MP3 formatted discs)
©2004 Matsushita Electric Industrial Co. Ltd.. All rights reserved. Unauthorized copying and distribution is a violation of law.
SA-AK630P / SA-AK630PC |
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(3) MP3 |
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Dimensions (W x H x D) |
250 x 330 x 341 mm |
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Bit rate |
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(9-27/32” x 13” x 13-7/16”) |
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MP3 |
32 kbps - 320 kbps |
Mass |
7.1 kg (15.7 lb.) |
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Sampling frequency |
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Operating temperature range |
+5 to +35°C (+41 to +95°F) |
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MP3 |
32 kHz, 44.1 kHz, 48 kHz |
Operating humidity range |
5 to 90% RH (no condensation) |
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CD |
44.1 kHz |
n SYSTEM |
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Decoding |
16 bit linear |
SC-AK630 (P) |
Music center: SA-AK630 (P) |
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Digital filter |
8 fs |
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Speaker: SB-AK630 (P) |
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D/A converter |
MASH (1 bit DAC) |
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Subwoofer: SB-WAK630 (P) |
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Pickup |
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SC-AK630 (PC) |
Music center: SA-AK630 (PC) |
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Wavelength |
780 nm |
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Speaker: SB-AK630 (P) |
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Beam Source |
Semiconductor laser |
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Subwoofer: SB-WAK630 (P) |
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Audio output (Disc) |
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Notes: |
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Number of channels |
2 (Stereo) (FL,FR) |
1. Specifications are subject to change without notice. Mass and |
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n GENERAL |
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dimensions are approximate. |
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2. Total harmonic distortion is measured by the digital spectrum |
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Power Supply |
AC 120 V, 60Hz |
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analyzer. |
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Power consumption |
255 W |
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Power consumption in standby |
0.38 W |
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mode |
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CONTENTS
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Page |
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Page |
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1 |
Safety Precaution |
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4 |
10.13. CD Mechanism Main Component Replacement |
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1.1. Insulation Resistance Test |
4 |
Procedures |
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22 |
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2 |
Before Repair and Adjustment |
5 |
10.14. Replacement |
for the pinch roller ass and head block |
35 |
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3 |
Protection Circuitry |
5 |
10.15. Replacement |
for the Deck motor ass , capstan belt A, |
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4 |
Prevention of Electro Static Discharge (ESD) to |
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capstan belt B and winding belt |
35 |
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Electrostatically Sensitive (ES) Devices |
5 |
10.16. Replacement |
for the cassette lid ass |
38 |
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5 |
Handling the Lead-free Solder |
6 |
10.17. Rectification for tape jam problem |
39 |
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5.1. About lead free solder (PbF) |
6 |
11 Checking for major P.C.Bs |
40 |
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6 |
Handling Precautions For Traverse Deck |
7 |
11.1. Checking of Main P.C.B. |
40 |
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7 |
Precaution of Laser Diode |
8 |
11.2. Checking of Transformer P.C.B. |
41 |
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8 |
Accessories |
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9 |
11.3. Checking of Panel, Deck & Deck Mechanism P.C.B. |
42 |
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9 |
Operation Procedures |
10 |
11.4. Checking of Power P.C.B. |
43 |
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10 |
Disassembly and Assembly of Main Component |
12 |
12 Self-Diagnostic Function |
44 |
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10.1. Disassembly |
flow chart |
12 |
12.1. Self-diagnostic display |
44 |
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10.2. Gear for servicing (jig) Information |
13 |
12.2. How to enter the Self-Diagnostic Function |
44 |
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10.3. Disassembly of Top Cabinet |
14 |
12.3. Cassette Mechanism Test (For error code H01, H02, H03, |
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10.4. Disassembly |
of CD Lid |
14 |
F01) |
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44 |
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10.5. Disassembly |
of Rear Panel |
16 |
12.4. CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29, |
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10.6. Disassembly of CD Mechanism Unit |
16 |
F30, H15 & H16) |
44 |
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10.7. Disassembly |
of Main P.C.B. |
17 |
12.5. To clear all Error code |
45 |
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10.8. Disassembly of Sub-Power P.C.B. |
17 |
12.6. To exit from Self-Diagnostic function |
45 |
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10.9. Disassembly |
of Power P.C.B. |
18 |
12.7. Power Amplifier Failure (F61) |
45 |
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10.10. Disassembly of Transformer P.C.B. |
20 |
12.8. Description of Error Code |
45 |
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10.11. Disassembly of Front Panel Unit |
20 |
13 CD Test Mode Function |
47 |
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10.12. Disassembly of Deck Mechanism Unit |
21 |
13.1. How to set CD test mode |
47 |
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13.2. CD Automatically Adjustment result indication |
47 |
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2
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SA-AK630P / SA-AK630PC |
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13.3. CD Mecha Aging Test Mode (CR20) |
47 |
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18.4. (D) Transformer P.C.B. |
82 |
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13.4. Micon ROM Checksum and Version Display Mode |
48 |
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18.5. (E) CD Detect P.C.B., (F) Spindle Position P.C.B., (G) CD |
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14 Measurements and Adjustments |
49 |
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Loading P.C.B. & (K) Tuner Pack P.C.B. |
83 |
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14.1. Cassette Deck Section |
49 |
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18.6. (H) Power P.C.B. & (L) Sub-Power P.C.B. |
84 |
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14.2. Tuner Section |
49 |
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18.7. (I) Deck P.C.B. & (J) Deck Mechanism P.C.B. |
86 |
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14.3. Alignment Points |
50 |
19 |
Wiring Connection Diagram |
87 |
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15 Block Diagram |
51 |
20 |
Illustration of IC , Transistors and Diodes |
88 |
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16 Voltage Measurement |
59 |
21 |
Terminal Function of IC |
89 |
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17 Schematic Diagram |
61 |
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21.1. IC7002 (MN6627953HB) Servo processor/ Digital signal |
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17.1. (A) CD Servo Circuit |
62 |
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processor/ Digital filter/ D/A converter |
89 |
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17.2. (B) Main (Tuner) Circuit |
64 |
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21.2. IC7003 (AN8739SBTE2) Focus coil/ Tracking coil/ |
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17.3. (B) Main Circuit |
65 |
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Traverse motor/ Spindle motor drive |
89 |
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17.4. (C) Panel Circuit |
70 |
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21.3. IC2801 (C2CBJG000561) System Microprocessor |
90 |
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17.5. (D) Transformer Circuit |
72 |
22 |
Troubleshooting Guide |
92 |
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17.6. (E) CD Detect Circuit, (F) Spindle Position Circuit, (G)CD |
23 |
Parts Location and Replacement Parts List |
93 |
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Loading Circuit & (L) Sub-Power Circuit |
73 |
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23.1. Deck Mechanism (RAA4502-S) |
94 |
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17.7. (H) Power Circuit |
74 |
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23.2. CD Loading Mechanism (RD-DAC026-S) |
97 |
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17.8. (I) Deck Circuit & (J) Deck Mechanism Circuit |
75 |
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23.3. Cabinet |
100 |
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18 Printed Circuit Board |
77 |
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23.4. Electrical Parts List |
102 |
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18.1. (A) CD Servo P.C.B. |
77 |
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23.5. Packing Materials & Accessories Parts List |
111 |
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18.2. (B) Main P.C.B. |
78 |
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23.6. Packaging |
112 |
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18.3. (C) Panel P.C.B. |
80 |
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3
SA-AK630P / SA-AK630PC
1 Safety Precaution
(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
1.1.Insulation Resistance Test
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.Unplug the power cord and short the two prongs of the plug with a jumper wire.
2.Turn on the power switch.
3.Measure the resistance value with ohmmeter between the jumper AC plug and each exposed metal cabinet part, such as screwheads, antenna, control shafts, handle brackets, etc.Measure the resistance value with ohmmeter between the jumper AC plug and each exposed metal cabinet part, such as screwheads, antenna, control shafts, handle brackets, etc.
Equipment with antenna terminals should read between 2.7MΩ and 3.9MΩ to all exposed parts*. (Fig.1) Equipment without antenna terminals should read approximatel y infinity to all exposed parts. (Fig.2) *Note : Some exposed parts may be isolated from the chassis by design. These will read infinity.
4.If the measurement is outside the specified limits, there is a possibility of a shock hazard. The equipment should be repaired and re-checked before it is returned to the customer.
Fig.1
Fig.2
4
SA-AK630P / SA-AK630PC
1.1.1.Caution for fuse replacement
2 Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C5820 and C5840 through a 10Ω, 5W 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 at CD mode) should be ~600mA.
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 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage caused by electro static discharge (ESD).
1.Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching 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 equipped 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).
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SA-AK630P / SA-AK630PC
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 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-AK630P / SA-AK630PC
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).
· Handling of 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.To prevent the breakdown of the laser diode, an antistatic shorting pin is inserted into the flexible board (FFC board).
3.Take care not to apply excessive stress to the flexible board (FFC board). When removing or connecting the short pin, finish the job in as short time as possible.
4.Do not turn the variable resistor (laser power adjustment). It has already been adjusted.
Grounding for electrostatic breakdown prevention
1.Human body grounding
Use the anti-static wrist strap to discharge the static electricity from your body.
2.Work table grounding
Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is place, and ground the sheet.
Caution :
The static electricity of your clothes will not be grounded through the wrist strap. So, take care not to let your clothes touch the traverse deck (optical pickup).
Caution when replacing the Traverse Deck
The traverse deck 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-AK630P / SA-AK630PC
7 Precaution of Laser Diode
CAUTION:
This unit utilizes a class 1 laser.
Invisible laser radiation is emitted from the optical pickup lens.
Wavelength: 780nm
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.)
8
SA-AK630P / SA-AK630PC
8 Accessories
Remote Control
FM Antenna
AC Cord
AM Loop Antenna
9
SA-AK630P / SA-AK630PC
9 Operation Procedures
10
SA-AK630P / SA-AK630PC
11
SA-AK630P / SA-AK630PC
10 Disassembly and Assembly of Main Component
“ATTENTION SERVICER”
Some chassis components may have sharp edges. Be careful when disassemblin g 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.
4.Refer to the Parts No. on the page of “Parts Location and Replacement Parts List” (Section 23), if necessary.
10.1. Disassembly flow chart
The following chart is the procedure for disassemblin g the casing and inside parts for internal inspection when carrying out the servicing.
To assemble the unit, reverse the steps shown in the chart as below.
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SA-AK630P / SA-AK630PC
10.2. Gear for servicing (jig) Information
1.This unit has a gear which is used for checking items (Open/Close of disc tray, up/down operation of traverse unit by manually) when servicing.
2.For preparation of gear (for servicing), perform the procedures as follows.
3.In case of re-servicing the same set, the “gear for servicing” may has been taken off because it has been used. The “gear for servicing” must be stored.
· Remove the gear provided with mecha cover as shown below.
· Insert the hexagonal screwdriver (2mm) into the gear, and then project the tip of screwdriver for 1~ 2 mm in length.
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SA-AK630P / SA-AK630PC
10.3. Disassembly of Top Cabinet
Step 1 Remove 2 screws at each side and 5 screws at rear panel.
Step 2 Lift up both sides of the top cabinet, push the top cabinet towards the rear and remove the top cabinet.
10.4. Disassembly of CD Lid
(The CD changer unit can be removed after the CD Lid is removed)
· Follow the (Step 1) - (Step 2) of Item 10.3 - Disassembly of Top Cabinet
·Opening the disc tray automatically (Using Power Supply)
Step 1 Connect the AC power cord.
Step 2 Press the POWER button to power up the main unit.
Step 4 Release the 2 claws, and then remove the CD Lid.
Step 5 Press the OPEN/CLOSE button, the disc tray will close.
Step 3 Press the OPEN/CLOSE button, the disc tray will open automatically .
14
SA-AK630P / SA-AK630PC
Step 6 Press the POWER button to turn the power off.
· [Opening the disc tray manually (Using service tools)]
Step 1 Insert the gear tool into the hole on the underside of CD chassis and then rotate in the direction of arrow. The disc tray will be opened.
Step 2 Release the 2 claws, and then remove the CD lid cover.
Step 3 Repeat Step 2 but rotate the gear tools in anti-clockwise direction.
Step 4 The disc tray will be closed.
15
SA-AK630P / SA-AK630PC
10.5. Disassembly of Rear Panel
· Follow the (Step 1) - (Step 2) of Item 10.3 - Disassembly of Top Cabinet
Step 1 Remove 7 screws and disconnect wire CN2810 (Fan) at rear cabinet as shown.
10.6. Disassembly of CD Mechanism Unit
· Follow the (Step 1) - (Step 2) of Item 10.3 - Disassembly of Top Cabinet Step 1 Remove one screw at rear panel.
Step 2 Detach the FFC wires (CN2801 & CN2805).
Step 4 Remove 4 screws.
Step 5 Remove the CD chassis.
Step 6 Lay the CD mechanism unit as shown.
· For disassembly of CD mechanism unit, please refer to Section 10.12 of this manual.
Step 3 Release the claws of both ends, and then lift up the CD
Mechanism Unit.
16
SA-AK630P / SA-AK630PC
10.7. Disassembly of Main P.C.B.
· Follow the (Step 1) - (Step |
2) of Item |
10.3 |
- Disassembly |
of Top Cabinet |
· Follow the (Step 1) - (Step |
6) of Item |
10.4 |
- Disassembly |
of CD Lid |
·Follow the (Step 1) of Item 10.5 - Disassembly of Rear Panel
·Follow the (Step 1) - (Step 3) of Item 10.6 - Disassembly of CD Mechanism Unit
Step 1 Disconnect FFC wires CN2803 & CN2806 from Main |
Step 2 Lift up Main P.C.B. by disconnecting connectors |
P.C.B. |
CN5800 & CN5801 as arrow shown above. |
10.8. Disassembly of Sub-Power P.C.B.
· Follow the (Step 1) - (Step 2) of Item 10.3 |
- Disassembly |
of Top Cabinet |
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· Follow the (Step 1) - (Step 6) of Item 10.4 |
- Disassembly |
of CD Lid |
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· Follow the (Step 1) of Item 10.5 - Disassembly of Rear Panel |
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· Follow the (Step 1) - (Step |
3) of Item |
10.6 |
- Disassembly of CD Mechanism Unit |
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· Follow the (Step 1) - (Step |
2) of Item |
10.7 |
- Disassembly |
of Main P.C.B. |
Step 1 Remove the 2 screws fixed at Sub Power P.C.B..
Step 2 Remove 2 screws at Power Amplifier IC.
Step 3 Disconnect connector CN5803
Step 4 Lift up the Sub Power P.C.B. to remove it.
17
SA-AK630P / SA-AK630PC
· Replacement of Power Amplifier IC
Step 1 Desolder the terminals of Power Amplifier IC and replace the component.
10.9. Disassembly of Power P.C.B.
· Follow the (Step 1) - (Step 2) of Item 10.3 |
- Disassembly |
of Top Cabinet |
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· Follow the (Step 1) - (Step 6) of Item 10.4 |
- Disassembly |
of CD Lid |
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· Follow the (Step 1) of Item 10.5 - Disassembly of Rear Panel |
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· Follow the (Step 1) - (Step 3) of Item 10.6 |
- Disassembly of CD Mechanism Unit |
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· Follow the (Step 1) - (Step 2) of Item 10.7 |
- Disassembly |
of Main P.C.B. |
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Step 1 |
Remove the 2 screws fixed at heat sink. |
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Step 2 |
Remove1 screw fixed at Power P.C.B.. |
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Note:
Insulate the Power P.C.B. with insulation material to avoid short circuit.
18
SA-AK630P / SA-AK630PC
· Replacement of the Power Amplifier IC/ Voltage Regulator
Step 1 Remove 2 screws fixed to the Power Amplifier IC and 1 screw to Voltage Regulator.
Step 2 Break the joint with a metal cutter as shown below.
Step 3 Unsolder the terminals of Power Amp IC, transistor and replace the components.
Step 4 Fix back the cut portion with a screw as shown.
19
SA-AK630P / SA-AK630PC
10.10. Disassembly of Transformer P.C.B.
· Follow the (Step 1) - (Step |
2) of Item |
10.3 |
- Disassembly |
of Top Cabinet |
· Follow the (Step 1) - (Step |
6) of Item |
10.4 |
- Disassembly |
of CD Lid |
·Follow the (Step 1) of Item 10.5 - Disassembly of Rear Panel
·Follow the (Step 1) - (Step 3) of Item 10.6 - Disassembly of CD Mechanism Unit Step 1 Remove 3 screws, disconnect connector CN5950.
10.11. Disassembly of Front Panel Unit
· Follow the (Step 1) - (Step |
2) of Item |
10.3 |
- Disassembly |
of Top Cabinet |
· Follow the (Step 1) - (Step |
6) of Item |
10.4 |
- Disassembly |
of CD Lid |
·Follow the (Step 1) of Item 10.5 - Disassembly of Rear Panel
·Follow the (Step 1) - (Step 3) of Item 10.6 - Disassembly of CD Mechanism Unit Step 1 Lay the unit as shown below.
Step 3 Remove volume knob and adaptor.
· Disassembly of Panel P.C.B.
Step 2 Release 2 claws at bottom and 2 claws each side, draw the front panel ass’y forward.
20
SA-AK630P / SA-AK630PC
Step 4 Remove 10 screws.
Step 5 Disconnect connectors (CN2806, CN2803 and
CN5950).
10.12. Disassembly of Deck Mechanism Unit
· Follow the (Step 1) - (Step 2) of Item 10.3 |
- Disassembly of Top Cabinet |
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· Follow the (Step 1) - (Step |
6) of Item |
10.4 |
- Disassembly |
of CD Lid |
· Follow the (Step 1) - (Step |
3) of Item |
10.6 |
- Disassembly |
of CD Mechanism Unit |
· Follow the (Step 1) - (Step 3) of Item 10.11 - Disassembly |
of Front Panel Unit |
|
Step 1 |
Detach FFC wire (CN971). |
Step 5 Tilt the cassette mechanism unit in the direction of |
Step 2 Disconnect FFC flat cable from the connector |
arrow (1), and then remove it in the direction of arrow (2). |
|
(CN1001). |
· For replacement of Deck Mechanism P.C.B. |
|
Step 3 |
Remove the 5 screws. |
Step 6 Remove 3 screws. |
Step 7 Unsolder the motor terminals.
Step 8 Remove Deck Mechanism P.C.B.
Step 4 Push the lever upward, and then open the cassette lid ass’y (For DECK1 and DECK2).
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SA-AK630P / SA-AK630PC
10.13. CD Mechanism Main Component Replacement Procedures
· Follow the (Step 1) - (Step 2) of Item 10.3 - Disassembly of Top Cabinet
· Follow the (Step 1) - (Step 6) of Item 10.4 - Disassembly of CD Lid
· Follow the (Step 1) - (Step 6) of Item 10.6 - Disassembly of CD Mechanism Unit
10.13.1. Replacement of the Traverse Deck
Step 1 Remove the CD changer unit.
Step 2 Insert the gear with hexagonal wrench into the hole.
Step 4 With pressing the claw (A), rotate the hexagonal wrench clockwise. (The slide plate R moves for a little amount.)
Step 5 Pressing the claw (B) in the direction of arrow (1), the connection lever moves in the direction of arrow (2).
Step 3 Rotate the hexagonal wrench in the direction of arrow (clockwise), and then open the disc tray fully.
Step 6 Lift up the traverse deck ass’y.
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SA-AK630P / SA-AK630PC
Step 7 Remove the traverse deck ass’y from the timing lever.
Caution:
When removing or inserting the traverse deck avoid touching the OPU lens and pressing onto the turntable.
Step 8 Remove 3 screws.
Step 9 Unsolder the motor terminals (4 points).
Step 10 Remove the FFC board from the connector, and then remove the CD Servo P.C.B.
Step 11 Remove the pin.
Step 12 Release the claw, and then remove the traverse deck ass’y.
23
SA-AK630P / SA-AK630PC
Note:
Be careful not to lose the 3 floating spring because those will also be removed on removal of the traverse deck ass’y.
· Installation of the CD Servo P.C.B. after replacement Step 1 Connect the FFC board.
Step 2 Install the CD servo P.C.B. in the traverse deck ass’y. Step 3 Remove 3 screws.
Step 4 Solder.
· Note for installation of the CD servo P.C.B.
· Installation for traverse deck ass’y
Step 1 Install the traverse deck ass’y to the timing lever.
Step 2 Align the boss of traverse deck ass’y with the slot of traverse cam gear.
Step 3 Force the claw of timing lever.
Step 4 Force the disc tray fully.
24
SA-AK630P / SA-AK630PC
Step 5 With pressing the claw (B) in the direction of arrow (1), force the connection lever in the direction of arrow (2).
10.13.2. Replacement for the Disc Tray
Step 1 |
Remove 4 screws. |
Step 2 |
Remove the upper plate. |
Step 3 |
Remove 3 screws. |
Step 4 With lifting the claw in the direction of (1), draw the CD Detect P.C.B. in the direction of arrow (2).
Step 5 Remove the mechanism cover.
Step 6 Insert the gear with hexagonal wrench into the hole.
Step 7 Rotate the hexagonal wrench in the direction of arrow, and then open the disc tray fully.
25
SA-AK630P / SA-AK630PC
Step 8 Release the both claws, and then draw the disc tray.
Step 9 With forcing the left guide bar manually because the left guide bar interfers with claw, draw the disc tray.
[Installation of the disc tray after replacement]
Step 1 Slide the drive rack fully in the direction of arrow.
Step 2 Holding the drive rack not to move, install the disc tray. Step 3 Align the drive rack with the drive gear.
NOTE:
Force the right guide bar of tray base manually not to move upwards.
Step 4 Holding the disc tray manually, push the disc tray in the direction of the arrow.
26
SA-AK630P / SA-AK630PC
10.13.3. Disassembly and reassembly for mechanism base drive unit
Step 1 Remove 3 screws.
Step 2 Release the claw, and then remove the gear holder.
Step 3 Remove the belt and change gear spring.
NOTE:
Take care not to lose the change gear spring.
Step 4 Remove the pulley gear, change gear and UP/DOWN gear.
Step 6 Install the tray lock spring to hook temporary. Step 7 Release the claw, and then remove the tray lock. Step 8 Release the claw, and then remove the rear lock.
Step 5 Release the 2 claws, and then remove the bottom SW P.C.B..
27
SA-AK630P / SA-AK630PC
Step 9 Pressing the claw (B) in the direction of arrow (1), force the connection lever in the direction of arrow (2).
Step 10 Move the slide plate 1 to the end of stock side.
Step 11 Lift up the left end of spindle base unit in the direction of arrow (1), and then remove the unit in the direction of arrow
(2).
Step 12 Remove slide plate 1 and slide plate 2.
28
SA-AK630P / SA-AK630PC
Step 13 Remove the traverse relay gear, traverse cam gear and drive gear.
[Dissassembly/reassembly for the spindle base unit] Step 1 Draw the 5 disc spacers.
Step 2 Pushing the claw, slide the support plate in the direction of arrow, and then remove it.
Step 3 Rotate the disc lever in the direction of arrow (1), draw the disc lever.
NOTE:
Take care not to lose the disc lever spring.
Step 4 Release the 2 claws, and then draw the relay gear B. Step 5 Release the 2 claws as shown below.
29
SA-AK630P / SA-AK630PC
NOTE:
Hold the loading stopper ass’y manually bacause it is flipped by spring.
Step 6 Remove the cushion spring.
Step 7 Remove the loading stopper ass’y in the direction of arrow.
Step 8 Release the 2 claws, and then remove the relay gear A. Step 9 Release the 2 claws, and then remove the spindle shaft.
Step 10 Remove the lower spindle spring with tweezers. Step 11 Force the lower hook with thin tip of minus screwdriver.
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