Voltage Diagrams - Icom IC-E92D Service Manual

4-4 CPU PORT ALLOCATION (continued)
LINE
NAME
DASTB1 Strobe signal to the DAC (R: IC950).
DASTB2 Strobe signal to the DAC (M: IC600).
IOSTB1 Strobe signal to the expander (R: IC951).
IOSTB3 Strobe signal to the expanders (M: IC701, 702).
IOSTB4 Strobe signal to the expander (L: IC53).
APLLSTB Strobe signal to the A BAND PLL IC (M: IC800).
BPLSTB Strobe to the B BAND PLL IC (M: IC400).
Power save mode control signal to the A/B BAND PLL ICs (M: IC800/
BPS
IC400).
UNLK Unlock signal from the A BAND PLL IC (M: IC800).
CLIN Key detect signal. (Pushed bottom is detected by refering input voltage.)
ATONE Tone signals; tone and WX A BAND.
BTONE Tone signals; tone and WX B BAND.
DC voltage divided by the voltage detect resisters (L: R159 and R160).
VIN
(Remaining battery capacity detection.)
OPTV External device detect.
The voltage in proportion to the internal temperature.
TEMP
The voltage divided by R66 (thermistor; LOGIC) and R67 (LOGIC).
• While operated by battery
RSSI voltage from the IF IC (M: IC100).
S-TXV
• While perated by external power supply
Current in TX from the I-V converter (M: IC704).
BRSSI RSSI voltage from the B BAND IF IC (M: IC200).
CTCOUT CTCSS/DTCS signals.
DTMF Tone signals; DTMF, EUR tone,
RESET Reset signal from the reset IC (L:IC100).
4-5 VOLTAGE BLOCK DIAGRAMS
Voltage from the attached battery pack is routed to the whole of the transceiver via regulators and switches.
Q1000,
D1000, 1001
DC-IN
DC
Battery pack
SW
B A T T
CHG
Q150−153
D150, 151
CHGH CHGC
DESCRIPTION
IC102
VCC
SW
REG
Q650−652
T5
T6
TXC
Q400,401
AF PWR AMP
AF6V
(IC400)
AFON
D 5 V
REG
D V C
IN/OUT STATUS
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
IN
IC100
+5V +3CPU
REG
IC103
+ 3
+3V
REG
P C O N
Q800,801,830
VCOA, B, C
VCO3V
C V C O C
A V C O C
B V C O C
A M B E 3 V
AMBE
REG
AMBEC
M O D E M
MODEM3V
CODEC CODEC
3V
4 - 8
CONDITION
– –
– –
– –
– –
– –
– –
– –
L In power save mode.
H PLL is locked.
A/D –
A/D –
A/D –
A/D –
A/D –
A/D –
A/D –
A/D –
D/A –
D/A –
H –
CPU
IC101,D101
V
DC-DC
Q202
LED3V
LIGHT
MAINR3V
R 3 C
RFR3V
+ 5 5 . V
+ 3 V
+ 3 V
R3V