Icom IC-2200H - HM-133 V BLOCK DIAGRAM

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