Block Diagram - JETStream JT220M Service Manual

Q223
2SA1832(GR)
5C
CHARGE
PUMP
P53
P51
PLL IC
P50
P07
U205
CHARGE
LMX1511
PUMP
19.200MHz
Q224
2SC4738(GR)
5C TCXO
5C
P01
RX-A
X200
P42 19.200MHz
TX-A
M62364F(3/8)
D/A
CONV
U505
M62364F(1/8)
P00
P15
J2
PHONEJACK
STEREO
U505
Q5 TX-A
NJM2902(1/4)
M62364F(2/8)
2SC1623
MIC
MIC
D/A
AMP
CONV
P01
P10
P11
5C
P00
Q502
MICG
2SC4181
D5
LCD BACK LIGHT
AGC
P12
SW 8C
Q6 2SC1623
Q7 2SD468
5M
D3
LCD
P27
POW LED
5M
SW
D9
P04 Q1
TX LED
DTC114EE
J501
PHONE-DC
5C SW
SW P47
Q2
DTMF-DET
DTC114EE
Q3
DTC144EE
.

BLOCK DIAGRAM

Q210
2SC4226
RF
Q217
2SK1875
8C
RX
VCO
LOOP Q201
Q219
UMC4N
FILTER
2SJ243
SW
SW
Q213
DTA114EE
P45
TX
CHARGE
Q221
VCO
2SC1623 U202
Q218
LM2904V(2/2)
2SK1875
LIPPLE
8C
VCO
FILTER
P23 NOISE
U505 U505
M62364F(4/8)
D/A D/A
U501
CONV CONV
D200
LM2902(4/4)
DAN235E
BUFFER
SPLATTER
SW
AMP
CTCSS
FILTER
U504
NJM2902(3/4)(4/4)
D/A
Q203
U505 U505 NARROW
CONV DTA114YE
M62364F(6/8) M62364F(6/8)
SW
U504
MIC/IDC
NJM2902(2/4)
P44
U504
P02
COMPANDER
BUFFER P03
U500 U500
(A/2)
AMP
MC33111 MC33111
P40 P16 TONE
P12
P13
D502
P15
DAN222
P16
P40
AGC P41
SW
P42
DET
P43
P44
P45
D501
P46
1SS372
P47
P40
P50
P51
P53
P54
COM0~7
LCD DRIVE
SEG0~27
CS,WR,DT
U3
P27
HT1621M
CS,CK,DT
SIN
5M
CTCSS/DCS DTMF
5M
BEEP SW
CTCSS ENCODER
BUFFER
TONE AMP
U7
U8
TC4W53FU
LM2904V HT9200A
Q209 Q207 D203 Q220
2SC4226 2SC4226 DAN235E 2SC3357
RF
RF T/R SW
BUFF
AMP
Q211
VCO 8C 8T 8R 8T
2SC4215
MULTIPLY
X2
AF/SQ P24
Q204
Q205
2SC4215 3SK318
IF
MCF
IF AMP MIX
DEMODULATOR
U200
XF200,XF201
TA31136FN
38.85MHz
VFM
VIF 8R
D201
D205,D206
DAN235E
HVC350
CF200
SW
(NARROW)
CF201 Q200
WIDE
(WIDE) UMC4N
SW
U501 U501
NJM2902(1/4) NJM2902(2/4)
BUFFER
LPF
AMP
U6
AT24C32RM
P52 P22
P56 EEPROM 5M
P57
AF/SQ
EESDT
EEPCK
CTCSS/DCS
LPF
POWER
U503
NJM2902
FUNC
5C
U2
S3P8249
P00
P01
8R
P04
Q107
P07
UMC4N
P10
P11
P21
SW
VAM
P23
P24
P25
P27
Q4
SHIFT
Y1
DTC144EE
DTC114EE
3.58MHz SW
P46
W1
P22
Y2
10K
U4
7.3728MHz
Q214 D210,D211
Q212 Q216
RD07 L407CDB
2SK3078 MRF7042
PRE
DRIVE
FINAL
DRIVE ANT SW
AMP AMP
AMP
VG
8T
D230
MA742
D204
DAN235E
Q206
3SK318
BPF BPF
RF AMP
TV
VFM
RF BPF
RF BPF
TUNE TUNE
D207,D208
HVC350
VIF DC AMP
U202
LM2904V(1/2)
U502 U500 U505
Q500
NJM2902 MC33111
M62364F(7/8)(8/8) DTC144EE
COMPANDER
D/A
HPF SW
(B/2)
CONV
VB
DTMF-DET 5C P42 RX-A TONE P43
8C U100
Q102 MC7808
REFERENCE
5C
2SB1132
VOLTAGE
AVR
8T SW
U501 8C
NJM2902(3/4)
U201
Q104
MC78L05
DTC114EU
P47 SW
SW
VIF
P13
Q101
2SB624
SW
Q106
UMC4N
Q108
DTC114EE
SW
VFM
5M
P41 SW
Q105
RESET RESET
AVR
SW 5C
5C
U101
MC78L05
.
JT220M
ANT
RX: 216.000-280.000
TX: 222.000-225.000
LPF
LPF
D231
POW DET POW DET
MA742
APC U204
LM2904V
CONTROL
8T
U505
D/A
M62364F(5/8)
CONV
SP
U506
LA4600
J502
AF PA
EXT.
SP
SBE
Q100
2SB1386
SW +B
E
SBE
Q103
DTC114EU
SW
U1
HT7550-1
AVR
U5
P21
S7133SF