Top View - Icom IC-28H Instruction Manual

6-1 TOP VIEW
(MAIN UNIT)
VHF FM TRANSCEIVER
ЕапгсомасС-ванм
| М
CPU Reset Switch
3
MB3756 (8V Regulator)
(To reset malfunctioning CPU,
turn ON 1С-28Н and push
reset switch.)
BT1 BR2032-1T2
(Backup Lithium Battery)
Е12 17M15B (Crystal Filter)
(Helical Cavity)
Receive Bandpass Filter
Q4 28C3355 (RF Атр)
9 ——1.———— |C2 uPC1241H (AF Audio
Amp)
Q3 2SK125 (1st Mixer)
6-2 BOTTOM VIEW i
(RX UNIT)
1С6 SC-1019 (PA Module)
Transmit Driver Unit
DC-DC Converter
IC8 МЈМ45580
IC1 MB87001P (PLL Control) — асаа :
| Optional Squelch Unit
X1 (Reference Oscillator Crystal): k
(UT-28 or UT-29)
1С2 MB504P (Pre-scaler)
e