Icom IC-2200H Service Manual page 43

10-2 HM-133V
Q8 2SC2712
Q9 DTB113ZK
M8V
REG CTRL
MIC
GND
MDATA
PROTECTO
D18 MA8091
IC2
MC14028BF
MATRIX
DRIVER
(MAIN only)
KEY MATRIX
D3-D7,D9-D12
1SS355 (MAIN)
1SS400 (MAIN-A)
5V (MAIN)
IC3 S-80845CLUA
D13 1SS355
Q1 2SC2712 (MAIN-A)
D1 MA8056 IC3 BD5245G
5V REG RESET
D16,D17 MA8091
DS1-DS8 LN1371G
BACK
PROTECTO
LIGHT
MIC
Q2 DTC114EU
Q3 DTA114EU
DATA
BUFF
DATA
RESET
LED/
CPU Q4,Q5 2SA1586
DRIVER
DS11 LT1EP53A
IC1
µPD7564AG (MAIN)
µPD789071 (MAIN-A)
LED/ Q6,Q7 2SA1586
DRIVER DS10 LT1EP53A
D14,D15 1SS355 (MAIN only)
IC6
EE-PROM
BR24L02FV
(MAIN -A only)
Explanatory notes
DATA BAS
COMMON
TX
VOLTAGE LINE
10 - 2