Read Panasonic KX-T7730UA Service Manual online
1 ABOUT LEAD FREE SOLDER (PbF: Pb free)
3
1.1.
SUGGESTED PbF SOLDER
3
1.2.
HOW TO RECOGNIZE THAT Pb FREE SOLDER IS
USED
4
2 FOR SERVICE TECHNICIANS
5
3 SPECIFICATIONS
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4 LOCATION OF CONTROLS
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5 CONNECTION
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6 DISASSEMBLY INSTRUCTIONS
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7 IC DATA
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8 BLOCK DIAGRAM
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9 CIRCUIT OPERATIONS
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9.1.
KEY INPUT CONTROL CIRCUIT
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9.2.
LED CIRCUIT
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9.3.
DATA COMMUNICATION CIRCUIT
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9.4.
TONE GENERATION CIRCUIT
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9.5.
HANDSET CIRCUIT
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9.6.
SPEAKERPHONE CIRCUIT
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10 TROUBLESHOOTING GUIDE
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10.1. NO OPERATION
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10.2. HANDSET TROUBLE
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10.3. SPEAKER-PHONE TROUBLE
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10.4. TONE DIAL TORUBLE
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10.5. THE ELECTRONIC VOLUME OF THE SPEAKER-PHONE
DOES NOT WORK
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10.6. THE ELECTRONIC VOLUME OF HANDSET DOES NOT
WORK
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11 TERMINAL GUIDE OF ICS, TRANSISTORS AND DIODES
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12 HOW TO REPLACE THE FLAT PACKAGE IC
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12.1. PREPARATION
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12.2. FLAT PACKAGE IC REMOVE PROCEDURE
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12.3. FLAT PACKAGE IC INSTALLATION PROCEDURE
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12.4. BRIDGE MODIFICATION PROCEDURE
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13 CABINET AND ELECTRICAL PARTS LOCATION
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14 ACCESSORIES AND PACKING MATERIALS
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15 REPLACEMENT PARTS LIST
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15.1. CABINET AND ELECTRICAL PARTS
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15.2. ACCESSORIES AND PACKING MATERIALS
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15.3. MAIN BOARD PARTS
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16 FOR THE SCHEMATIC DIAGRAM
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17 SCHEMATIC DIAGRAM
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18 PRINTED CIRCUIT BOARD (MAIN BOARD)
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18.1. COMPONENT VIEW
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18.2. BOTTOM VIEW
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CONTENTS
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KX-T7730UA
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