Section 10 Block Diagram - Icom IC-M25 Service Manual

SECTION 10. BLOCK DIAGRAM
CHASSIS
HV
HV
BATTERY VOLTAGE
T
CHARGE
BTEMPV
GND
SP1
SP
Q608:
SMS3J35FS
WET
DET PIN
DET
INPUT DC 5.0V
WETIN
DC PWR WET
DET CTRL SW
D609: Q609:
L1SS400 LMUN5213DW1
DCV
Q353:
HV RSQ035P03TR VCC
PWR PWR
CTRL CTRL
Q606:
RSQ035P03TR
BATT
BATTV
DET
PON
PWR PWSW
CTRL
Q354:LDTC144EE
D358:LDAN222
MIC UNIT
AF
ERXDO
CLONE
CLONE
ERXDI
Q350:LDTC144TE
MIC D350:KDS122
EXDET
GND
SPCTRL
AFVS
Q230:RSQ035P03TR
Q231:KTC811U
PTTIN D356:L1SS400
PTT S250
IC260A:
TC74VHC4066AFK
MC250
INMIC
MIC
PTTM MIC
CONT
Q250:LDTC144EE
MAIN UNIT
M3V IC1:GP214D
PLL IC LOOP
FIL
REF
CR-766
IC400:NJU7056F3
X1
LOINV
21.25MHz
BUFF
Q603:
LDTC144EE
MOD
RESET
MODC
PLLO
CRESET
CHARGE CTRL
2ND LO
IC601:
APM8600FB
IC170:
NJM2591V
CHG FLT POK
DET IF DET IC
450KHz
X170
JTBM450CX70
IC260D:
TC74VHC4066SAFK
DETMS AF
MUTE
MODC
FCON
IC365A:
NJU7057RB1
BEEP DE- VOLIN
LPF
D/A IC
ENPHA
WDECV
IC362: IC364:
TPA0211DGN NJU7056F3
AF
AMP
AMP BEEP
IC200C:
VCC NJU7058V
AMP
BPCTRL
AF
REG
IC200A:
NJU7058V
LPF
LIMIT
AMP
EXTMIC
IC200D:
NJU7058V
IC200B: IC260C:
NJU7058V TC74VHC4066AFK
AF AF
AMP
MUTE MUTE
PTTM MICMS
10-1
Q21,Q22:KTC3770U
Q362:LDTC144EE Q23: Q24: D50,D51:
D22,D23:BBY58 2SC4215 2SC4215 RN142G
TX/RX
BUFF BUFF
SW
Q20:LDTC144EE
D20:KDS114E
D21:KDS114E
MOD R3V
MUTE
Q25: VCO
2SC4215
BUFF BPF
450KHz
FI170:
BPF
LTM450FW
Q151: FI150:FL-368
2SC4215 FI151:FL-399A Q150:
3SK293
IF
BPF
AMP
21.7MHz
PLL DATA BUS
RSSIV
IC365B:
NJU7057RB1
NOISV
AMP
PCON
T1CON
D/A contorl BUS
IC190:
R2A20178
VCC
Q224:KTC811U
Q225:2SB1132L
Q366:LDTC144EE
M3V
REG
3V M3VS
Q221:
LDTA114YE
R3V
REG
R3 R3VS
Q222:
LDTA114YE
T3V
REG
PRE T3 T3VS
ENPHA
Q50: Q53: Q54:
KTC3770U RD01MUS2B RD07MUS2B
PRE PWR PWR PWR
BUFF
DRIVE
SPLITTER AMP COMBINER
Q55:
Q365:LDTA144EE
RD07MUS2B
ELOW SHUNT PWR
AMP
IC50:NJU7056F3 D91,D200:
TDETV
APC Q357:LDTC144EE PWR RB706F
CTRL DET
PCON
LOW
D131: D130: Q90: D93: D92:
BB174 BB174 3SK294 BB174 BB174
RF
BPF BPF BPF BPF
AMP
T1CON
VCC
IC220:
S-1335J30-M5T1U3
CPU
3V
4.9152MHz
CPU3V
IC341:
NJU7704F3-03A
RESET RESET
CPU
EEPROM IC360:
UPD78F0338GC
LEDS
IC340:GT24C128
KEY
LEDR
ANTENNA
D52:1SV307
D90:KDS114E
ANT
LPF
SW
T3V
Q351:
LDTA144EE
T3V TX TXMS
MUTE SW
FLT CRESET
BEEP WDECV
AFVS RSSIV
MICMS LOINV
DETMS NOISV
ETXDO TEMPV
TXMS BTEMPV
TDETV BATTV
ERXDI PTTIN
ELOW CHG
LOW DCV
PWSW PTTM
POK PON
SPCTRL EXTPTT
BPCTRL WETIN
EXDET UNLK
DS246:
TJ3901TF
X360
CR-911
LCD
Q240:
LMUN5213DW1
DS240,DS241:
LED SML-512WW
LED
SW DS242,DS243,DS244,DS245:
LNJ426W83RA
DS252:
LED
SML-S13UT
COMMON LINE
RX LINE
TX LINE
CONTROL LINE