Icom IC-R20, Руководство по обслуживанию

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10 - 1
D68
1SV172
ANTENNA
BPF
CERAMIC
AM/NFM
FI8
CFWM450E
AM
DET
Q545
×
1/2
XP6501
1SV308
D65–D66, D73, D74
D64, D67, D70:
1SV308
D76: MA2S077
LPF
BPF
ATT
D69: 1SV308
Q507: 2SC5008
Q508: XP4312
D100: SVC347 Q513: XP4601
RF
AMP
IC18:
µ
PC2746TB
BPF
RF
AMP
Q14: 2SC5006
D166: MA2S728
D162: MA2S728
BPF
D1–D2: HVC350B
D25: 1SV308
D29: 1SV308
D72: 1SV308
BPF HPF
RF
AMP
Q36:2SC5006
D167:MA2S728
D160:MA2S728
D11: 1SV308
D3: 1SV308
D13: 1SV308
LPF
BPF
D174: HVC375B
D173: HVC375B
BPF
RF
AMP
Q24: 2SC5008
IC15:
µ
PC2757TB
1ST
MIXER
BRF
B 1ST
IF FILTER
FI1
EFCH266MKQP1
D130: MA2S077
D131: MA2S077
BPF
XTAL
FI7
FL-293
AM/NFM
LPF
WFM
IF
AMP
Q542
2SC5006
LO
AMP
Q555
2SC5006
3RD LO AMP
LPF
WFM
IF
AMP
Q544
XP6501
D139:MA2S728
Q547:UNR9213J
Q526: UNR9113J
Q524: 2SC4617
Q528: 2SC5006 Q523: 2SC4617
Q522: 2SC4617
Q521: 2SC4617
Q525: XP6501
D171: HVC350B Q556: 2SC4617 X1: CR-593
Q530:
2SC4617
D116: RB876W
D115: RB876W
Q531: 2SC4617
Q532
2SK1069
IC16:
µ
PC2757TB
2ND
MIXER
D132: MA2S077
D133: MA2S077
Q543
UNR9113J
D134:1SS400
D135:1SS400
D136: 1SS400
D137: 1SS400
Q545
×
1/2
XP6501
IF
AMP
Q5: 2SC5006
BPF
XTAL
FI3
FL-293
AM/NFM/SSB
IC10
µ
PC2757TB
2ND MIXER
D60:MA2S077
D61:MA2S077
AM
DET
Q4
×
1/2
XP6501
LO
AMP
Q540: 2SC5006
3RD LO AMP
LPF
WFM
LPF
WFM
Q4
×
1/2
XP6501
RF
AMP
IC19
µ
PC2746TB
IC1
µ
PC2757TB
1ST Mix
D110:1SS400
D109:1SS400
D108:1SS400
IF
AMP
Q1
XP6501
D58: MA2S077
D59: MA2S077
D112: 1SS400
D111: 1SS400
D113: 1SS400
BRF
A 1ST IF FILTER
FI4
EFCH429MKQP1
D114: MA2S728
Q529: UNR9213J
Q41: UNR9113J
BPF
CERAMIC
AM/NFM
FI2: CFWM450E
BPF
CERAMIC
SSB/CW
FI6: CFWM450K3
BPF
D145–D146: HVC350B
Q506: UNR9110J
Q510: UMD6
LPF
Q552:UNR9113J
D75:1SV308
D101:MA2S077
RF
AMP
Q549: 2SC5006
D161: MA2S728
D152: MA2S728
PRE
AMP
Q550: FH102
D148: MA2S728
D149: MA2S728
PRE
AMP
Q551:
µ
PA805T
D151: MA2S728
D150: MA2S728
RF
AMP
Q548: 2SC5006
D153: MA2S728
D158: MA2S728
BPF
D141 D142
HVC350B
RF
AMP
Q35:2SC5006
D168:MA2S728
D159:MA2S728
BPF
D4–D5:
HVC350B
RF
AMP
Q505: 2SC4226
D163: MA2S728
D164: MA2S728
BPF
D175:HVC375B
D176:HVC375B
RF
AMP
Q26: 2SC5624
D156: MA2S728
D155: MA2S728
D143: 1SV308
D32: 1SV308
D36: 1SV308
IC3:
µ
PC2757TB
MIX
RF
AMP
IC2:
µ
PC2749TB
D1: 1SV308
HPF
D2: 1SV308
D8: 1SV308
D7: 1SV308
HPF
Doubler
D6: 1SV308
D5: 1SV308
BUFF
Q4: 2SC5624
Q5: XP1113
Q1: 2SC5006
D3: 1SV245
VCO
LPF
BUFF
Q2: 2SC5006
IC4: MB15B03SL
BUFF
Q6: 2SC5277
LO
AMP
Q9: 2SC5231
LO AMP
BUFF
Q8: 2SC5231 IC3: MB15T61UL
BUFF
Q12: 2SC5277
BUFF
IC2:
µ
PC2746TB
D2:1SV245
Q1:2SC5006
1BVCO
Q2:2SC5006
D3:HVC417C
2BVCO
Q3:2SC5006
D4:HVC417C
3BVCO
Q4, Q5:2SC5006
D5:HVC417C
4BVCO
D7–D10:
1SV308
Q10–Q11:
XP1113
D1:HVC350B
Q1:FH102
VCO
FIL
RIPPLE
Q4: 2SC4617
FIL
LOOP
IC1: MB15E03SL
BUFF
Q3: 2SC5277
+3
REG
Q501: UNR9113J
300M3V
+3
REG
Q502: XP1113
A_VHF3V A_UHF3V
+3
REG
Q502: XP1113
B_VHF3V
+3
REG
Q554: XP1113
B_UHF3V
+3
REG
Q554: XP1113
B_G3V
+3
REG
Q503: XP1113
B_800M3V
+3
REG
Q503: XP1113
D7–D9:
1SV308
LO
AMP
Q9
2SC5231
BUFF
IC2:
µ
PC2746TB
BUFF
Q8: 2SC5231
BUFF
Q13: 2SC5227
Q2:2SC5006
D3:HVC417C
2AVCO
IC3: MB15T61
Q11, Q12:
XP1113
Q3: 2SC5006
D4: HVC417C
3AVCO
D2: 1SV245
Q1: 2SC5006
1AVCO
FIL
LOOP
FIL
RIPPLE
Q4: 2SC4617
D1: 1SV314
Q1: FH102
VCO
IC1: MB15E03SL
BUFF
Q3: 2SC5277
FIL
LOOP
Q6:2SK880
Q7:2SC4117
FIL
LOOP
Q6: 2SK880
Q7: 2SC4117
NB3V
+3
REG
Q527: UNR9113J
+3
REG
Q546: XP4312
B_AM3V
Q553
XP1113
+3
REG
Q509: UNR9113J
HF3V
Q504: XP1110
D178: 1SS400
Q534: XP1113
D119: DAP222
Q519: UNR9113J
A-AGC
A-AGC
B-AGC
B-AGC
A-AGC
A-AGC
B-AGC
B-AGC
B-AGC
A-AGC
B-AGC
A_300MC
A_VHFC A_UHFC
B_800MC
B_GC B_UHFC B_VHFC NBC B_AMC HFC
LIMIT
BAND
SW
ANT
BAR
BAND
SW
ANT
TUNE
LEVEL
CONV.
SW
BAND BAND
SW
MODE
SW
FM IF-IC
ANL
MUTE
SW
DET
AGC
NB
AMP
REF
CONT.
RFO
AMP
AMP
3rd IF
AMP
SSBAF
MODE
SW
WIDEFM
CONT.
SW
MODE
SW
MODE
AGC
SW
MODE
MODE
SW
FM IF IC
SW
MODE
SW
ANL
MODE
AGC
WIDEFM
CONT.
OSC
REF
ATT-CONT.
VP
A-TRAC
D169–D170: MA2S728
ANT
SW
ANT
SW
D34: 1SV308
D147: 1SV308
SW
BAND
SW
BAND
SW
BAND
BAND
SW SW
BAND
LO
SELCT
PLL
IC
DOWNCONV
BOARD
OSC
PLL
IC
D1:1SV245
LO
SW
VCO
3V
1–4B3V
1B3V
2B3V
3B3V
4B3V
1–4B3V
IC
PLL
A_R3V
A_R3V
B_R3V
1A3V
3A3V
IC
3V
2A3V
LO
SW
1–4A3V
D1: 1SV245
1–3A3V
PLL
VCO
IC
PLL
A_R3V
NB3V NB3V NB3V
NB3V
B_AM3V B_AM3V B_AM3V
MODE
CONT.
BMODEC
B_R3V
B AM FM
B WFMC
B MODEC B MODEC
B MODEC B MODEC
OSC
B_R3V B_R3V
B_R3V
B_R3V B_R3V B_R3V
OSC
OSC
HF3V
BAND
SELECT
HF3V
A_VHF3V
B_VHF3V
300M3V
A_UHF3V
B_VHF3V
B_800M3V
B_G3V
OSC
A_R3V A_R3V A_R3V
A_R3V
A_R3V
OSC
A_R3V
AMODEC
MODE
CONT.
A_R3V
SSB3V
A WFMC A NFMC
SSBC
AMODEC AMODEC
AMODEC
AMODEC
+3S
OSC
1STBVCO BOARD
2NDDVCO
BOARD
1STAVCO BOARD
2NDCVCO
BOARD
IC17: TA31136FN
IC2: TA31136FN
409.4500/
448.7500 MHz
247.0500/286.3500 MHz
849.1000–899.0999 MHz
604.1000–849.0999 MHz
429.2500–604.0999 MHz
863.3000–
1099.6999MHz
566.3000–686.6999 MHz
384.7000–441.6999 MHz
683.3000–866.6999 MHz
1001.0000/2002.0000 MHz
OSC
BFO
AF
SW
IC12: CD4066
A_DETFM
A_DETSSB
A_DETAM
A_DET
IC21: CD4066
AF
SW
DET OUT
AM DET
B_DET
DA/EXPND
IC22: CD4094
IC20, IC14: M62366
MF
HF-L
HF-H
A-VHF
B-VHF
30–300 MHz
A-UHF
B-UHF
800 MHz
1GHz
19.2 MHz
19.2 MHz
19.2 MHz
A-AGC
266.7 MHz 19.65 MHz
19.65 MHz
429.1 MHz
A 2ND IF FILTER
B 2ND IF FILTER
0.1500 – 3304.9999 MHz
0.4950–1.6200 MHz
B 3RD IF FILTER
0.450 MHz
A 3RD IF FILTER
0.450 MHz
A-IFIN
B-IFIN
B-MIXOUT
A-MIXOUT
A_DET
B_DET
RF UNIT
Explanatory notes
VOLTAGE LINE
RX LINE
RECORDING LINE
PLAYBACK LINE
SECTION 10 BLOCK DIAGRAM