18
KX-TGP500B04/KX-TPA50B04
4.9.
Circuit Operation (Handset)
4.9.1.
Construction
The circuit mainly consists of DSP and RF part as shown in the block diagram.
4.9.1.1.
DSP: IC501
Function
• Battery Low, Power down detect circuit
• Ringer Generation
• Interface circuit
RF part, Speaker, Mic, LED, Key scan, LCD, Headset
Initial waves
Note:
(*1) The initializing time of the DSP chip is 20 ms under normal conditions.
4.9.1.2.
RF part
Mainly voice signal is modulated to RF, or it goes the other way.
4.9.1.3.
FLASH MEMORY: IC546
All setting data is stored.
ex: ID code, user setting (Phonebook, program data)
Summary of Contents for KX-TGP500B04
Page 2: ...2 KX TGP500B04 KX TPA50B04 ...
Page 23: ...23 KX TGP500B04 KX TPA50B04 4 12 Signal Route ...
Page 55: ...55 KX TGP500B04 KX TPA50B04 9 4 IP Reset ...
Page 65: ...65 KX TGP500B04 KX TPA50B04 10 1 4 3 1 Switching Hub Check ...
Page 66: ...66 KX TGP500B04 KX TPA50B04 10 1 4 3 2 Repeater Hub Check ...
Page 67: ...67 KX TGP500B04 KX TPA50B04 10 1 4 4 Router Check ...
Page 68: ...68 KX TGP500B04 KX TPA50B04 10 1 4 5 Modem Check ...
Page 69: ...69 KX TGP500B04 KX TPA50B04 10 1 4 6 IP Duplication Check ...
Page 75: ...75 KX TGP500B04 KX TPA50B04 10 1 6 5 RF DSP Interface Signal Wave Form FP Base ...
Page 76: ...76 KX TGP500B04 KX TPA50B04 PP Handset ...
Page 77: ...77 KX TGP500B04 KX TPA50B04 ...
Page 78: ...78 KX TGP500B04 KX TPA50B04 ...
Page 81: ...81 KX TGP500B04 KX TPA50B04 ...
Page 83: ...83 KX TGP500B04 KX TPA50B04 NG Examples Program Flash IC503 NG Wave RAM IC505 NG Wave ...
Page 84: ...84 KX TGP500B04 KX TPA50B04 Data Flash IC502 NG Wave ...
Page 86: ...86 KX TGP500B04 KX TPA50B04 11 1 2 Handset ...
Page 87: ...87 KX TGP500B04 KX TPA50B04 11 1 3 Charger Unit ...
Page 88: ...88 KX TGP500B04 KX TPA50B04 11 2 How to Replace the Handset LCD ...
Page 89: ...89 KX TGP500B04 KX TPA50B04 ...
Page 116: ...116 KX TGP500B04 KX TPA50B04 Note ...