Icom IC-A25N Service Manual page 31

(Amended page)
March 2019
BOARD LAYOUTS
• LOGIC UNIT (B-8813 for #11, #12, #21, #22, and #31 : TOP VIEW)
The actual configuration of the PC board can be seen by viewing the top and bottom BOARD LAYOUT pages together.
The underlined parts have been updated from the previous version of the addendum, or the original page.
7-1a
NC
NC
CPU3V
CPU3V
GND
CPU3V
GND
GND
LCDCSB
LCDA0
CPU3V
CPU3V
LCDRSTB
LCDSCL
LCDSDA
LCDSDA
LCDSDA
CPU3V
CPU3V
CPU3V
CPU3V
NC
NC
NC
NC
NC
GND
KR0
KR1
KR2
KR3
KR4
KS0
KS1
KS2
KS3
PWRBTN
GND
KEYLIGHT
GND
GND
See the PARTS LIST H/V location on the PARTS LIST for location details.