17
KX-NCP500GR
• POWER block (BLOCK 13)
This consists of DC/DC converter circuit and various regulators.
Configuration:
IC1901 (3.3V, 2.5V DC/DC converter), IC1902 (1.25 DC/DC converter), IC1908 (1.8V regulator), IC1907 (1.2V regulator),
IC1903 (Comparator), Q1901, Q1902, Q1903 (FET, transistor), B1901, IP1901 (circuit protection device) and so on.
Function:
+15V_CON input is stepped down to +3.3VD and +2.5VD by DC/DC converter circuit which consists of IC1901, Q1901 and
Q1902 and is supplied to each IC power.
Q1901 and Q1902 and is supplied to each IC power.
+3.3VD is generated by the DC/DC converter is converted to +1.25VD and supplied to IC101 core power.
+2.5VD is generated by the DC/DC converter is converted to +1.8VD and supplied to IC1101 core power.
+2.5VD is generated by the DC/DC converter is converted to +1.2VD and supplied to IC801 core power.
BAT1901, which is a lithium battery for backup, is connected to the power supply of IC1301 (SRAM) and IC802 (RTC) via D1904,
D1905.
IC1903 compares B1901 output voltage to the reference voltage (about +2.7V) and drives LED (BATT ALARM) that indicates
dropping of backup voltage.
• TDA600_CON block (BLOCK 14)
This provides the control interface between IPCEMPR Card and BUS-M Card. (Not mounted connector and so on)
Configuration: CN2001 (Connector for BUS-M),IC2001-IC2001(buffer) and so on.
Function:
Nothing
• ESVM_VOX block (BLOCK 15)
It is VOX detection circuit.
Configuration: IC2201, IC2202 (CODEC), IC2203, IC2204 (OP Amp), IC2205, IC2206 (Comparator) and so on.
Function:
The ESVM voice data are made D/A conversion in IC2201, IC2202 and IC804 (ESVM DSP). After these are amplified with the
amplifier, the sound is detected with the comparator.
Содержание KX-NCP1000GR
Страница 9: ...9 KX NCP500GR ...
Страница 12: ...12 KX NCP500GR 4 2 Power Supply Block Diagram ...
Страница 20: ...20 KX NCP500GR 4 5 5 System Control 4 5 5 1 System Control Block Diagram ...
Страница 21: ...21 KX NCP500GR 4 5 5 2 Voice TDM Highway Bus Block Diagram ...
Страница 23: ...23 KX NCP500GR 4 5 6 Back Board Signal Connection Diagram 4 5 6 1 CT Bus System Connection Diagram ...
Страница 24: ...24 KX NCP500GR 4 5 6 2 EC Bus System Connection Diagram ...
Страница 32: ...32 KX NCP500GR 5 Location of Controls and Components 5 1 Name and Locations ...
Страница 36: ...36 KX NCP500GR ...
Страница 53: ...53 KX NCP500GR 9 Troubleshooting Guide 9 1 IPCMPR Card 9 1 1 Startup ...
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Страница 56: ...56 KX NCP500GR ...
Страница 57: ...57 KX NCP500GR 9 1 1 1 Main alarm light turns on ...
Страница 58: ...58 KX NCP500GR 9 1 1 2 SD card access light does not flash ...
Страница 60: ...60 KX NCP500GR ...
Страница 61: ...61 KX NCP500GR 9 1 1 6 Option card cannot start up ...
Страница 62: ...62 KX NCP500GR 9 1 2 Phone Call 9 1 2 1 The path cannot connect ...
Страница 63: ...63 KX NCP500GR 9 1 2 2 Noise is created ...
Страница 64: ...64 KX NCP500GR 9 1 3 Paging 9 1 3 1 Noise is created ...
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Страница 66: ...66 KX NCP500GR 9 1 4 Using MOH ...
Страница 67: ...67 KX NCP500GR ...
Страница 68: ...68 KX NCP500GR 9 1 5 LAN 9 1 5 1 LAN Connection ...
Страница 69: ...69 KX NCP500GR 9 1 6 ESVM 9 1 6 1 ESVM function record play ...
Страница 70: ...70 KX NCP500GR ...
Страница 71: ...71 KX NCP500GR 9 1 7 RS 232C 9 1 7 1 RS 232C Connection ...
Страница 72: ...72 KX NCP500GR 9 1 8 SD card IF ...
Страница 73: ...73 KX NCP500GR 9 1 9 Other ...
Страница 75: ...75 KX NCP500GR 9 2 1 1 Defective parts list ...
Страница 77: ...77 KX NCP500GR 9 2 3 15VPT 41V output voltage not output 15V only output 9 2 3 1 Defective parts list ...
Страница 78: ...78 KX NCP500GR 9 2 4 15VPT output voltage only not output 9 2 4 1 Defective parts list ...
Страница 79: ...79 KX NCP500GR 9 2 5 41V output voltage only not output 9 2 5 1 Defective parts list ...
Страница 80: ...80 KX NCP500GR 10 Service Fixture Tools 10 1 Extension Boards for Servicing ...
Страница 86: ...86 KX NCP500GR 12 2 Terminal Guide of the ICs Transistors and Diodes 12 2 1 IPCMPR Card 12 2 2 LED Board ...
Страница 87: ...87 KX NCP500GR 12 2 3 Power Supply Board ...
Страница 129: ...129 KX NCP500GR Waveform 7 Waveform 8 Waveform 9 159 984MHz 13 824MHz 16 384MHz ...
Страница 145: ...145 KX NCP500GR 16 2 Cabinet and Electrical Parts Location ...
Страница 146: ...146 KX NCP500GR 16 3 Accessories and Packing Material ...