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SECTION 2
INSIDE VIEWS
•
MAIN UNIT
2 - 1
•
FRONT UNIT
AF power amplifier
(IC6: LA4425A)
Antenna switch
(D1, D2: XB15A308)
PLL IC
(IC8: UPD3140GS)
Reference oscillator
(X2: CR-768)
VCO circuit
Crystal bandpass filter
(FI, FI2: FL-363)
YGR amplifier
(Q18: 2SC4226 R25)
+5V regulator
(IC9: TA7805S)
Pre-driver
(Q17: 2SC4215 O)
DSC decoder
(IC3: NJM2211M)
FM IF IC
(IC1: TA31136FN)
Analog switch
(IC7: TC4W66F)
Ceramic bandpass filter
(FI3: ALFY450E)
SQL board
LOGIC board
VR board
EEPROM
(IC4: BR24L32FV-W)
Dimmer controller
Q2: 2SB1132 R
Q3,Q4: 2SC4116 BL
Reset IC
(IC5: BD5242FVE-TR)
System clock
(X1: CR-769)
Photo coupler
(IC2: PC357N6T)
MAIN CPU
(IC1: M37560MFA-303GP)
Buffer amplifier
(IC6: NJM2904M)
Buffer amplifier
(IC3: TC7S14FU)
Speaker
Summary of Contents for IC-M302
Page 1: ...SERVICE MANUAL VHF MARINE TRANSCEIVER M302 ...
Page 29: ... BOTTOM VIEW DS4 DS5 DS7 DS6 DS2 DS3 9 4 ...
Page 30: ...J 1 R 1 1 5 HVS VOL1 VOL2 GND HV J1 to the MAIN unit W1 9 3 VR BOARD TOP VIEW BOTTOM VIEW 9 5 ...
Page 31: ...J 1 R 1 1 3 SQLI SQLV GND J1 to the MAIN unit W1 9 4 SQL BOARD TOP VIEW BOTTOM VIEW 9 6 ...
Page 32: ...9 7 R1 R3 R2 S2 S3 S4 R4 9 5 HM 141 TOP VIEW ...
Page 33: ...9 8 BOTTOM VIEW C1 S1 ...
Page 40: ......
Page 41: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14011IZ C1 2003 Icom Inc ...