23. REPLACEMENT PARTS LIST
This replacement parts list are U.S.A. version only.
Note:
1. RTL (Retention Time Limited)
The marking (RTL) indicates that the Retention Time is limited for
this item.
After the discontinuation of this assembly in production, the item
will continue to be available for a specific period of time. The
retention period of availability is dependent on the type of
assembly, and in accordance with the laws governing part and
product retention.
After the end of this period, the assembly will no longer be
available.
2. Important safety notice
Components identified by a mark special characteristics
important for safety. When replacing any of these components,
use only manufacture's specified parts.
3. The S mark indicates service standard parts and may differ from
production parts.
4. RESISTORS & CAPACITORS
Unless otherwise specified;
All resistors are in ohms ( ) K=1000 , M=1000k
All capacitors are in MICRO FARADS ( F) P= F
70
Summary of Contents for KX-TC1881B
Page 3: ...2 LOCATION OF CONTROLS Base unit 3 ...
Page 4: ... Handset 4 ...
Page 6: ...6 ...
Page 7: ...7 ...
Page 8: ...4 CONNECTIONS 8 ...
Page 11: ...5 OPERATIONS 5 1 Making Calls 5 1 1 With the Handset 11 ...
Page 12: ...12 ...
Page 13: ...13 ...
Page 14: ...5 1 2 With the Base Unit DIgital Duplex Speakerphone 14 ...
Page 15: ...15 ...
Page 16: ...5 2 Answering Calls 16 ...
Page 17: ...5 2 1 With the Handset 5 2 2 With the Base Unit 17 ...
Page 18: ...6 DISASSEMBLY INSTRUCTIONS 18 ...
Page 20: ...7 ASSEMBLY INSTRUCTIONS 7 1 Assembly the LCD to P C Board Handset 7 2 Replace the RF unit 20 ...
Page 23: ...8 1 Check Power 8 2 Check Sp phone Voice Transmission 8 3 Check Sp phone Voice Reception 23 ...
Page 24: ...8 4 Check Battery Charge 24 ...
Page 31: ...8 7 Check Handset Voice Transmission 31 ...
Page 33: ...NOTE When checking the RF UNIT Refet to Check the RF Unit 8 9 Check Call ID 33 ...
Page 34: ...9 TEST MODE AND ADJUSTMENT 9 1 Test mode flow chart for Base Unit 34 ...
Page 40: ...10 5 EXPLANATION OF BBIC DATA COMMUNICATION 10 5 1 Calling 40 ...
Page 41: ...10 5 2 To Terminate Communication 10 5 3 Ringing 10 5 4 ID Change 41 ...
Page 42: ...11 TERMINAL GUIDE OF IC S TRANSISTORS AND DIODES 11 1 Base Unit 11 2 Handset 42 ...
Page 43: ...12 BLOCK DIAGRAM Base Unit 12 1 Power Supply 12 2 DSP Control 43 ...
Page 58: ...14 BLOCK DIAGRAM Handset 15 CIRCUIT OPERATION Handset 58 ...
Page 62: ...17 CPU DATA Handset 17 1 IC201 62 ...
Page 63: ...18 EXPLANATION OF IC TERMINALS RF Unit 18 1 IC101 63 ...
Page 64: ...64 ...
Page 67: ...20 CABINET AND ELECTRICAL PARTS Base Unit 67 ...
Page 68: ...21 CABINET AND ELECTRICAL PARTS Handset 68 ...
Page 69: ...22 ACCESSORIES AND PACKING MATERIALS 69 ...
Page 88: ...ANT GND ANT VC101 ...
Page 89: ...TEST 10ch 1ch ...
Page 93: ...HANDSET COMPONENT VIEW ANT GND 100 MIC MIC TEST PULL UP 10 10 ANT VC101 SP SP ...
Page 95: ...TX RX IC101 ...