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NX-800/800H
23
COMPONENTS DESCRIPTION
Display unit (X54-3640-10)
Ref. No. Part Name Description
IC901 MOS-IC AFO/BLC SW
IC902 MOS-IC AF Buffer AMP (AFO)
IC903 MOS-IC Voltage Regulator (5C)
IC904 MOS-IC Voltage Regulator (33C)
IC905 MOS-IC Bus Buffer (TXD0)
IC906 MOS-IC DC/DC Converter (N100C)
IC907 MOS-IC Dual Bus Buffer (RXD0/RXD1)
IC908 MOS-IC AND Gate (TXD1/RXD0)
IC909 MOS-IC Buffer AMP (LCD Contrast ADJ)
IC910 MOS-IC Bus Buffer (D0-D7)
IC911 MOS IC MCU
IC912 MOS-IC Bus Buffer (A1-A2)
IC913 ROM IC Flash ROM
Q901 FET AFO SW
Q902 Transistor HK/RXD0 SW
Q904 Transistor HK/RXD0 SW
Q905 Transistor TX/RX LED (TX)
Q906 Transistor TX/RX LED (BUSY)
Q908 Transistor LCD Back Light SW
Q909 Transistor DIMER SW (LCD Back Light)
Q910 Transistor LCD BACK LIGHT SW
Q911 FET Dimer SW (LCD Back Light)
Q913 FET LCD Reset SW
D901 Varistor Surge Absorption (DM/KVL)
D902 Varistor Surge Absorption (HK/RXD)
D903 Zener Diode Over DC Supply Protection
D904 Varistor Surge Absorption (BLC/AFO)
D906 Varistor LINE protection (SB)
D907 Zener Diode OVER DC Supply Protection
D908 Diode KEY Matrix
D910 Diode
Reverse Current Prevention (HK/
RXD)
D911,912 Diode KEY Matrix
D913 Diode Line Protection (PTT/TXDO)
D914 LED TX/RX LED
D915~926
LED LCD Back Light
D927~936
LED KEY Back Light
D937 Diode Level Shift (PRST)
TX-RX unit (X57-7390-XX)
Ref. No. Part Name Description
IC1 MOS-IC Temp Sensor
IC2 MOS-IC Buffer AMP (TCXO modulation)
IC3 MOS-IC PLL IC
IC4 MOS-IC Buffer AMP (VCO tune)
IC5 MOS-IC VCO Modulation/Buffer AMP (CV)
IC101 MOS-IC Auto Power Control
IC102 MOS-IC Final AMP (RF Power Module)
IC103 MOS-IC Auto Power Control
IC201 MOS-IC Buffer AMP (2nd IF DET)
IC202 Analogue IC IF IC
IC203 MOS-IC Buffer AMP (RSSI/VAGC)
IC204 MOS-IC 1st Mixer
IC205,206
MOS-IC Buffer AMP (BPF tune)
IC401 MOS-IC Voltage Detector (BINT)
IC402 MOS-IC Voltage Regulator (33M)
IC403 MOS-IC Voltage Regulator (80C)
IC404 MOS-IC Voltage Regulator (50C)
IC405 Analogue IC DC/DC Converter (50M)
IC406 BI-POLAR IC Voltage Regulator (33C)
IC407 MOS-IC Voltage Regulator (33GPS)
IC408 MOS-IC Voltage Regulator (33A)
IC409 MOS-IC Voltage Regulator (15M)
IC410 Analogue IC DC/DC Converter (150C)
IC501 ROM IC Flash ROM
IC502 MCU DSP (BGA)
IC503 SRAM IC SRAM (BGA)
IC504 MOS-IC RTC
IC505 MOS-IC Delay
IC506 MOS-IC Reset (MCU)
IC507 MOS-IC Bus Buffer (BFSX2)
IC508 MOS-IC Buffer AMP (18.432MHz)
IC509 MOS-IC Bus Buffer (BER CLK/BER DATA)
IC510 MOS-IC MCU (BGA)
IC511 MOS-IC AND (PCS_RF/HD2)
IC512 MOS-IC Level Shift (AND ITXD1/SCTXD)
IC513 MOS-IC Buffer AMP (TXD2)
IC514 MOS-IC Level Shift (I2CCK/I2CDT)
IC515 MOS-IC Level Shift (TXDO/RTSO)
IC516 MOS-IC Level Shift (RXDO/CTSO)
IC517 MOS-IC I/O Expander