
in IC413, C453 and C454.
+3.3V generated in DC/DC converter is converted to 1.8V in the back board or IC403 and Q405 via Q404 and supplied to
IC101 core power, and also is converted to 1.9V in IC404 via the back-flow prevention diode D407 and supplied to IC101
clock block power.
BAT401, which is a lithium battery for memory backup, is connected to the power supply of IC301, IC302 (SRAM) via D408,
D409.
IC411 compares BAT401 output voltage to the reference voltage (about 2.8V) and drives LED (BATALM) that indicates
dropping of backup voltage.
IP401and IP402 block the line respectively when over current flows to +15V and +3.3V line.
30
KX-TDA100CE
Summary of Contents for KX-TDA100CE
Page 8: ...5 SYSTEM OVERVIEW 5 1 SYSTEM CONFIGURATIONS 8 KX TDA100CE ...
Page 17: ...8 2 SYSTEM CONTROL 8 2 1 System Control Block Diagram 17 KX TDA100CE ...
Page 18: ...8 2 2 Voice TDM Highway Bus Block Diagram 18 KX TDA100CE ...
Page 21: ...8 3 2 EC Bus System Connection Diagram 21 KX TDA100CE ...
Page 32: ...11 TROUBLESHOOTING GUIDE 11 1 MPR CARD 11 1 1 Startup 32 KX TDA100CE ...
Page 33: ...33 KX TDA100CE ...
Page 34: ...34 KX TDA100CE ...
Page 35: ...35 KX TDA100CE ...
Page 36: ...36 KX TDA100CE ...
Page 37: ...11 1 2 Phone Call 37 KX TDA100CE ...
Page 38: ...11 1 3 Paging 38 KX TDA100CE ...
Page 39: ...39 KX TDA100CE ...
Page 40: ...40 KX TDA100CE ...
Page 41: ...11 1 4 MOH Using 41 KX TDA100CE ...
Page 42: ...42 KX TDA100CE ...
Page 43: ...43 KX TDA100CE ...
Page 44: ...11 1 5 USB Connection 44 KX TDA100CE ...
Page 45: ...45 KX TDA100CE ...
Page 46: ...11 1 6 RS 232C Connection 46 KX TDA100CE ...
Page 47: ...47 KX TDA100CE ...
Page 48: ...11 1 7 SD Card I F 48 KX TDA100CE ...
Page 49: ...11 1 8 Other 49 KX TDA100CE ...
Page 54: ...12 2 DIAGNOSIS TEST 1 Click Diagnosis of Utility 54 KX TDA100CE ...
Page 55: ...2 Pair Port Test operation Select card for Test 3 Click Pair Port Test 55 KX TDA100CE ...
Page 56: ...4 Click OK 5 Click Cancel 56 KX TDA100CE ...
Page 57: ...6 Card Test operation Select card for Test 7 Click Card Test 57 KX TDA100CE ...
Page 58: ...8 Click OK 9 Click Cancel 58 KX TDA100CE ...
Page 63: ...14 TERMINAL GUIDE OF ICS TRANSISTORS AND DIODES 63 KX TDA100CE ...
Page 65: ...16 CABINET AND ELECTRICAL PARTS LOCATION 65 KX TDA100CE ...
Page 66: ...16 1 EXTENSION BOARDS FOR SERVICING 66 KX TDA100CE ...
Page 67: ...17 ACCESSORIES AND PACKING MATERIALS 67 KX TDA100CE ...
Page 86: ...Waveform 7 Waveform 8 20MHz 12MHz KX TDA100CE 86 ...
Page 91: ...91 KX TDA100CE A KXTDA100CE ...