![background image](http://html.mh-extra.com/html/icom/ic-7800/ic-7800_service-manual_612345009.webp)
Analog switch
(IC331: TC7W53FK)
D/A converter
(IC551: AK4394)
D/A converter
(IC771: BU9480F)
DSP IC
(IC1: TMS320C6713GFN)
A/D converter
(IC401: AK5394A)
Clock amplifier
IC451: TC7S04FU
IC452: SN74LVC1GU04DCKR
Analog switch
(IC331: TC7W53FK)
D/A converter [AF]
(IC551: AK4394)
D/A converter [AGC]
(IC771: BU9480F)
DSP IC
(IC1: TMS320C6713GFN)
A/D converter [IF]
(IC401: AK5394A)
Clock amplifier
IC451: TC7S04FU
IC452: SN74LVC1GU04DCKR
2-6 DSP-A/DSP-B
BOARDS
D/A converter
(IC551: AK4394)
DSP IC
(IC1: TMS320C6713GFN)
A/D converter
(IC401: AK5394A)
D/A converter [IF]
(IC551: AD1855JRS)
DSP IC
(IC1: TMS320C6713GFN)
A/D converter [AF]
(IC401: AK5394A)
Clock amplifier
IC451: TC7S04FU
IC452: SN74LVC1GU04DCKR
2-7 DSP-TX
BOARD
2 - 4