
RMV800 SERVICE MANUAL
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90
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Component Description
1. TX-RX
Unit
Ref. No.
Part Name
Type
Description
IC102
IC
Power module
Power module
IC103 IC
AT29C02-90T1
Flash
ROM
IC104 IC
NJM2904V Single-supply
dual operational amplifier
IC105 IC
AT2408N12.5S
EEPROM
IC106 IC
AK2346
Audio
processor
IC107
IC
TA75W558FU
Dual operational amplifier
IC108
IC
TC75W51FU
Dual operational amplifier
IC109
IC
NJM4558M
Dual operational amplifier
IC110 IC
NJM2904V Single-supply dual operational amplifier
IC111
IC
XC62FP3302P
Positive voltage regulator
IC113
IC
TA7805F
Positive voltage regulator
IC114
IC
TA78L09
Positive voltage regulator
IC115
IC
TA7805S
Positive voltage regulator
IC116
IC
TA75S01F
Single operational amplifier
IC117
IC
TA75S01F
Single operational amplifier
IC118
IC
TA75W01FU
Dual operational amplifier
IC119 IC
TA31136FN IF
detector
IC120 IC
M16C
CPU
IC121
IC
BU4066BCFV
Quad analog switch
IC122 IC
LC73872M DTMF
Receiver
IC125
IC
M62364FP
D/A converter with buffer amplifiers
IC126 IC
TDA8561Q Power
amplifier
IC127 IC
TC4013BF Dual
D-type
Flip-flop
2. DISPLAY
UNIT
Ref. No.
Part Name
Type
Description
IC501 IC
TA7805F
Voltage
supply.
IC 502
IC
R3111H421C
Voltage detector.
IC 503
IC
UPD780112
Display CPU.