Kenwood TS-590S Service Manual page 133

Z
TX-RX UNIT (X57-785X-XX) (A/2)
NOISE BLANKER
D522-524
ATTENUATOR
D523
C524
L204BBB
0.01u
VOLTAGE
SHIFT
1
1STIF-H : 0V
1STIF-L : 7.49V
CN904
RXB (11)
RT5P431C-T112
1STIF-H : 7.42V
1STIF-L : 0V
CN905
RXB (73)
RXB-1
RXB-2
F911
375mA
TXB+8
R707
680
L705
TH701
C707
10u
3k
0.01u
-t
Q702
2SC5383-T111
BUFFER
TX BUFFER
3
CONTROL UNIT
(X53-446X-XX) (A/3)
CN65
AA
SCHEMATIC DIAGRAM
RXB (+8)
R544
10k
R543 C545
470 0.01u
L541
1.14V
C543
L524
680n
0.01u
Q541
2SC3356-A
AMPLIFIER
RX 2nd IF AMP 2
(10.695MHz/11.374MHz)
CN520
C526 0.01u
AGC (10)
IC521
CN521
NJM12904V
AGC (10)
7.68V
0V
1 8
AoUT V+
0.90V
0V
2 7
A-IN BoUT
1.87V
0V
3
6
B-IN
A+IN
1.02V
0V
4 5
GND B+IN
AGC_REF
OP AMPLIFIER
DIODE ATT AGCV
(10.695MHz/11.374MHz)
3
1STIF 8VSW
1STIF : H 73.095MHz
1STIF : L 11.374MHz
Q908,910
Q908
SWITCHING
1STIF-H : 7.65V
1STIF-L : 0V
Q910
INK0010AU1-T1
R911
1STIF-H : 0V
10k
1STIF-L : 7.65V
R910
10k Q911
CKY
RT1N436U-T111
Q909
RT5P431C-T112
7.66V
1STIF-H : 3.03V
3
1STIF-L : 0V
CN906
1STIF
Q909,911
SWITCHING
TXFM-H : 1.74V
TXFM-L : 2.35V
TX MIXER
IC701
TA4107F-F
4.91V
5 4
IF1 RF1
4.92V 2.35V
C711
6 3
IF2 RF2
0.01u
0V 4.93V
R710 R711
7 2
GND VCC
220k 330
2.80V 2.85V
C712 8 1
4.33V
TH703 Lo2 Lo1
1k 0.01u
-t
TX 10M_MIXER
1.27V
(24kHz 10.695MHz)
1.60V
3
CN56
AF
CN3 CN4
E40-6525-05 E41-1684-05
DISPLAY UNIT (PHONE)
(X54-3700-00) (F/6)
CN964
AB
C547
0.01u
7.22V
C533 R549 C548
0.01u 18 0.01u R532 C536
1.2k 0.01u
Q521
2SC5551AF
0.42V 0V
Q453
RT1N436U-T111
1.59V
3.17V
Q454
0V
RT1N436U-T111
3.17V
Q453,454
SWITCHING
CN453
CN452
50RGC
HFRGC
IFGC
LO3 AMP
1
C572 R573
0.01u 18
D571,701
SWITCHING
C931
LO3
0.01u
TXFM-H : 3.20V
TXFM-L : 0.20V
Q917
CN911
HN7G01FU-F
TXB (FM)
TXFM-H : 2.16V
TXFM-L : 3.32V
TXFM ON/OFF SW
TXFM : H
TXFM-H : 0.04V
TXFM POWER ON
TXFM-L : 3.32V
TXFM : L
Q917
TXNFM (AM,SSB,CW)
TXFM-H : 0.81V
SWITCHING
POWER ON
TXFM-L : 0V
3 TXFM
8A
5A
3
RXFM-H : 4.12V
RXFM-L : 4.92V
Q915
SWITCHING
3
6.99V
3
4.65V
R21
C54
100k
4.7u10
ANO
3
+
Q12
4.7u10
2SC5383-T111
BUFFER
4.00V
C10 R25 R26
1u 3.9k 5.6k
D11 D12
1SS226-F 1SS226-F
CLIPPER
J1 J2
E11-0414-15 E56-0408-15
ACC2
EXT. SP
AC
TS-590S
R537 SWITCHING
CN523
100
2IFO2
7.49V
MC2858-T111
TH531
100
C539 C541
0.01u -t 0.01u
Q522
2SC5551AF
0.90V D525
ATTENUATOR
Q521,522
AMPLIFIER
R551
470
CN522
RX 2nd IF AMP 3 (25dB)
IFGC
(10.695MHz/11.374MHz)
C579
180p
3.19V
C577
L573
R577 C575 0.01u
330n
Q571
390 0.01u
C573
2SC5383-T111
0.01u
2.62V AMPLIFIER
1.95V
D701
MC2858-T111
CN702
TXB (+8)
TXB (+B)
TXFM-H : 0V
TXFM-L : 4.28V
TXFM-H : 2.90V
TXFM-L : 0V
R736
R927
220k
47k
L702
CN910
10u
TXFM
Q918
RT1N436U-T111
SWITCHING
4.92V RXFM-H : 3.18V
RXFM-L : 0.61V
RXFM-H : 4.87V
CN908
RXFM-L : 0V
5A (FM)
Q915
HN7G01FU-F
R918
47k
RXFM ON/OFF SW
CN907
RXFM-H : 0.08V RXFM
RXFM : H RXFM POWER ON
RXFM-L : 4.92V
RXFM : L RXNFM (AM,SSB,CW) POWER ON
3
D14
R : 3.24V SURGE
T : 0V PROTECTION
Q13
RT1N436U-T111
SWITCHING
C57
+
GND
3 2 1
4
8 7 6 5
12 11 10 9
13
X57-785 (A/2) 6/7
AD
NOISE BLANKER
D526
FM R586
15k
L591
10u
R581 C581
0 1000p
TP2
CAR
C703
0.047u
REVERSE
CURRENT
PREVENTION
C702 R703 C704
1u 5.6k 1u
5A(FM)
RXFM
3
REVERSE
CURRENT
PREVENTION
0V
BUFFER
Q14
2SK1824-A
SURGE
PROTECTION
1.67V
133