Read Panasonic KX-TDA6174XJ / KX-TDA6174X 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
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3 GENERAL DESCRIPTION
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4 SPECIFICATION
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5 SYSTEM CONSTRUCTION
6
5.1.
INSTALLING/REMOVING THE OPTIONAL SERVICE
CARDS
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6 BLOCK DIAGRAM
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7 CIRCUIT OPERATION
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7.1.
CONTROL-SYSTEM CIRCUIT
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7.2.
CODEC FUNCTION(IC201,202,250,251)
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7.3.
2W-4W CONVERSION
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7.4.
DTMF SIGNAL DETECTION
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7.5.
POWER SUPPLY
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7.6.
DIAL PULSE DETECTION
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7.7.
HOOK DETECTION
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7.8.
RING TRIP FEATURE
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7.9.
SURGE PROTECTION
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7.10. SELF-DIAGNOSIS
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7.11. POWER FAILURE SWITCH FEATURE
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7.12. BELL SIGNAL GENERATOR
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7.13. BELL SIGNAL TRANSMISSION
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7.14. POWER SUPPLY VOLTAGE GENERATOR
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8 TROUBLESHOOTING GUIDE
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9 IC DATA
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9.1.
IC14(ASIC)
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9.2.
IC201, IC202, IC250, IC251 (CODEC I/O PORT)
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9.3.
IC601 (CPU) I/O MAP
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10 HOW TO REPLACE A FLAT PACKAGE IC
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10.1. PREPARATION
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10.2. REMOVAL PROCEDURE
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10.3. INSTALLATION PROCEDURE
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10.4. REMOVING SOLDER FROM BETWEEN PINS
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11 TERMINAL GUIDE OF ICS, TRANSISTORS AND DIODES
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12 CABINET AND ELECTRICAL PARTS LOCATION
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13 ACCESSORIES AND PACKING MATERIALS
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14 REPLACEMENT PARTS LIST
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14.1. CABINET AND ELECTRICAL PARTS LOCATION
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14.2. ACCESSORIES AND PACKING MATERIALS
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14.3. MAIN BOARD PARTS
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15 FOR SCHEMATIC DIAGRAM
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15.1. WAVEFORM
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15.2. ESLC16 BLOCK DIAGRAM
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16 SCHEMATIC DIAGRAM
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16.1. No.1
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16.2. No.2
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16.3. No.3
61
16.4. No.4
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17 PRINTED CIRCUIT BOARD
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17.1. Component View
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17.2. Bottom View
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CONTENTS
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KX-TDA6174XJ / KX-TDA6174X
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