1
Before Use (Caution)
3
2
Before Repair and Adjustment
3
3
Protection Circuitry
3
4
Safety Precautions
4
5
Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
5
6
Handling the Lead-free Solder
5
7
Precaution of Laser Diode
6
8
Cautions to be taken when handling Optical Pickup
7
9
Accessories
8
10 Operation Procedures
9
11 Disc information
11
12 About HighMAT
13
13 Optical Pickup Self-Diagnosis and Replacement Procedure 17
14 Self-Diagnosis Function
18
15 Cautions To Be Taken During Servicing
23
16 Disassembly and Assembly of Main Component
25
17 Checking for major P.C.Bs
59
18 Measurements and Adjustments
63
19 Block Diagram
66
20 Voltage Measurement
77
21 Schematic Diagram
78
22 Printed Circuit Board
105
23 Wiring Connection Diagram
117
24 Illustration of ICs, Transistors and Diodes
119
25 Terminal Function of IC
121
26 Parts Location and Replacement Parts List
123
CONTENTS
Page
Page
1 Before Use (Caution)
Be sure to disconnect the mains cord before adjusting the voltage selector.
Use a minus(-) screwdriver to set the voltage selector (on the rear panel) to the voltage setting for the area in which the unit will
be used. (If the power supply in your area is 117V or 120V, set to the “127V” position.)
Note that this unit will be seriously damaged if this setting is not made correctly. (There is no voltage selector for some countries,
the correct voltage is already set.)
2 Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C5815, C5818, C9513, C9533, C9534, C9816 and C9817 through a
10
Ω
, 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 100/110V at 50/60 Hz & AC 240V at 50Hz in NO SIGNAL (vol. min, at CD mode) should be ~500mA
.
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.
3
Summary of Contents for SC-TM900DVD
Page 9: ...10 Operation Procedures 9 ...
Page 10: ...10 ...
Page 11: ...11 Disc information 11 ...
Page 12: ...12 ...
Page 15: ...15 ...
Page 35: ...Step 2 Remove DVD traverse deck by rotating to the arrow direction 35 ...
Page 39: ...39 ...
Page 40: ...16 17 3 Replacement for the traverse deck Follow the Step 1 Step 10 of item 16 17 2 40 ...
Page 42: ...42 ...
Page 43: ...43 ...
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Page 55: ...55 ...
Page 65: ...18 3 1 Cassette Deck Section 18 3 2 Adjustment Point 18 3 Alignment Points 65 ...
Page 77: ...20 Voltage Measurement This section is not available at time of issue 77 ...
Page 107: ...35 6 6 7 7 7 7 7 7 6 U 2 2 2 0 2 1 2 2 1 2 2 1 2 1 2 2 2 4 6 35 ...
Page 109: ...0 7 7 7 2 2 2 3 4 6 EW ODEL GT IC OTE ATERIAL 3IZE MODIFIED 0 4 25 ...
Page 110: ...2 0 7 2 0 5NIT MM 0ARTS NO AME PPROVED HECKED 3 ...
Page 111: ......
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Page 116: ...116 ...
Page 117: ...117 ...
Page 139: ...26 1 Deck Mechanism RAA3413 S 26 1 1 Deck Mechanism Parts Location 139 ...
Page 140: ...140 ...
Page 142: ...26 2 DVD Loading Mechanism 26 2 1 DVD Loading Mechanism Parts Location 142 ...
Page 143: ...143 ...
Page 145: ...26 3 Cabinet 26 3 1 Cabinet Parts Location 145 ...
Page 146: ...146 ...
Page 147: ...147 ...
Page 188: ...3 Connection of the Wiring Diagram 4 Cabinet Parts Location 5 service m speaker 11 ...
Page 192: ...3 Connection of the Wiring Diagram 9 service m speaker ...
Page 193: ...4 Cabinet Parts Location 3 10 service m speaker ...
Page 198: ...3 Connection of the Wiring Diagram 4 Cabinet Parts Location 15 service m speaker ...
Page 203: ...3 Connection of the Wiring Diagram 4 Cabinet Parts Location 20 service m speaker ...