Icom IC-7410 Service Manual - Page 84

R P FOR/REF SECTION 9. BLOCK DIAGRAM RF-A UNIT HTIF ATT FI911 FL-434 64.455MHz(BW=15kHz) XTAL BPF ATT Q741 Q721/Q722/Q723/Q724 2SC3357 2SK1740x4 fc=60MHz IF AM P LPF Q 511/Q512 2SC5551Ax2 PRE AM P BPF UNIT MDAT5 MCK5 RASTB5 DRESL5 IC303 CD4094BPWR S/P CONV IC305 CD4094BPWR S/P CONV HIFOP1S HIFOP2S B0 B7 HPOFS HPR1S HPR2S B1 B8 B4 B6 HATTS B3 B8W B5 B2 HIFWS 64.455MHz(BW=6kHz) FL-430(opt) XTAL BPF HIFOP1S HIFOP1K 64.455MHz(BW=3kHz) FL-431(opt) XTAL BPF HIFOP2S HIFOP2K IC1222 NJM074M IC1222 NJM074M Q611 3SK264 IF AM P ALC R8V 64.485~ 124.455MHz LPF LPF D651 HSB88W S LPF Q811 2SC3357 LO AM P IC601 UPC2708TB IF ATT AMP IC1221 TS522ID IF AMP Q1201 KTC3770U BUFF D1102 HSB88WS Q1071/Q1072 2SC4402 IF AMP Q1051 2SC5501A IF AM P HPR1S PREAMP SW Q514/Q515/Q554/D512 KRA302/KTA402/KTA2015/KDS2015 PRE Q532 AM P 2SC5551A HPR2S PREAMP SW Q534/Q531/Q533/D531 KRC402/KRA302X2/KDS4148 HPOFS PREAMP SW Q551/Q552 KRC402/KRA302 HRIF Σ 90deg 14V HRXS Q481/Q482/D481 2SD1664/KTC4075/KDS122 RX SW R8V IF AMP IC1221 TS522ID BUFF Q1251 KTC3770U D1101 HSB88W S HAGC IC1121 TC74LCX00FT LPF B5 LPF PLL UNIT IC353 SN74AHC244 HTXS Q491/Q492/D491 2SD1664/KTC4075/KDS122 TX SW T8V BUFF IC1121 TC74LCX00FT BUFF 90deg B8 B8W PDAT5/PCK5/PST1/PST1U Q301 MCLK KTC3770U 388.5MHz BUFF LEVEL CONV IC351 AD9951 BPF DD S LPF FI401 FL-423 64.455MHz ATT BRF ATT 64.485-86.455MHz BPF IC1121 TC74LCX00FT Q1141 KTC4080 BUFF LO ATT AMP HRXS DRESH 86.455-124.455MHz IC501 UPC2709TB X151 CR-893(32MHz) Q151 KTC3880 PDAT5/PCK5/PSTP Q201 KTC3880 IC201 Q251 Q271 ADF4116 2SK508 KTC3770U BPF AM P LPF HPF ATT REFV BUFF LPF PLL AMP IC REF=500kHz IC703 SN74AHC1G08 BUFF UNLK DET UNLK D201/Q202/Q203 KDS4148/KRA302/KRC402 IC704 SN74AHC1G08DCK CTRL SW CTRL SW H1BS Q 451/Q452 Q 421/Q422 2SK1829/KRA302 KRC402/KRA302 CTRL SW H1FS Q 501/Q502 KRC402/KRA302 ATT BPF B0 BPF 1.6-2.0MHz B1 BPF 2.0-4.0MHz B2 BPF 4.0-8.0MHz B3 BPF 8.0-11.0MHz B4 BPF 11.0-15.0MHz B5 BPF 15.0-22.0MHz B6 BPF 22.0-30.0MHz B7 BPF 50.0-54.0MHz B8 BPF 30.0-50.0MHz 54.0-60.0MHz B8W IC201 BGA616 YGR AM P ATT MKR SW MKR SW CTRL UNIT LPF 0.03-1.6MHz ATT HF ANT1 HF ANT2 HPF HATTS RL141 UA2-12NU S1 SW11 14V RL501 ANTS IC801 TA7805F +5 REG RESET 5V IC702 BR24L32FV EEPROM RL801 ATN207 1.8M LPF RL802 ATN207 L1 RL501 ATN207 3.5/3.8/4.63M RL502 LPF ATN207 L2 RL601 ATN207 5/7M LPF RL602 ATN207 D401 HSM88AS CURRENT DET RL351 FORV5V IC811 IC431 NJM2903 S-80851 AMP ANTI IKEY IC841 SN74HCT1G86 SW11 S2 ISTA BUFF NETWORK UNIT TUNING NETWORK THRU THRI ISET Q831/Q832 KRC402X2 BUFF TUNER CPU IC701 R5F212A7SNFP L3 RL1001 ATN207 10/14M LPF L4 RL1101 ATN207 18/21M LPF L5 RL901 ATN207 24/28M LPF RL1002 ATN207 RL1102 ATN207 RL902 ATN207 RL621 RL301 SIP-1A RL601 SIP-1A SW11 S3 DRESL X701 CR-520 (19.6608M) T5V Q 281/Q282 2SB1123/2SD1619 Q 820/Q822/Q821 KRC402x2/KRA302 T/R T/R CTRL SW D251 U05G LPF D602 MA3J7420 PWR DET D151/D152/Q151 HSM88AS/ HSM88AS/2SK515 RESIST DET HTXS IC171 NJM4558 AM P L6 RL701 ATN207 50M LPF L7 RL702 ATN207 IPDL IC371 NJM2904 AMP RL CTRL PHASE DET IC171 NJM4558 AM P Q603/Q621 KTC4075/KRA302 D11/D12 HSM88AS SWR DET IC111/IC121/IC131/D101/D10 2 TC74AC04/TC74ACT32/ TC74AC112/HSM88AS/HSM88AS IC31 NJM4558 AM P FORV5V IC41 NJM2904V AMP FORV IC41 N JM2904V AM P REFV Q551 KTC3880 X2 64MHz BPF Q552 IC701 KTC3880 SN74AHC1G04 BUFF AM P MKRS MKRS IC124 TA7808F PDAT5/ PCK5/ PSTD/ PSTM/ DRESL5 +8 14V REG 8V IC123 NJM2831F10 +10 10V REG IC121 TA7805F +5 REG IC122 BA33BCOFP +3R3 REG 5V 3R3V MKRS DDS D/A Q701 KTC4075 LPF BUFF IC702 SC-1287A Q901 KTC3880S BUFF Q571 KTC3880S Q 900/Q902/Q903 KRC402X2/KRA302 CTRL SW HRXS BUFF ATT CTRL SW TXS Q 900/Q902/Q903 KRC402X2/KRA302 AM P IC661 SN74AHC1G04 P-CLK IC662 CY22381 LPF 491kHz BPF ATT D951 ATT ATT HSB88WS 491kHz BPF ATT FI981 FL-436 64.491MHz XTAL BPF T3Lo M AIN T2LO M AIN ATT PDAT5 PCK5 PSL5 PST5 PSTC ATT CODEC_CLK DRESL5 M AIN ATT HTHL HEAT SENS Q201 Q 221/Q222 Q 241/Q242 RD01MUS1 RD15HVF1/RD15HVF1 RD100HHF1/RD100HHF1 PRE DRIVE DRIVE AM P PWR AM P FIDL FIDH H14V 14V HPID1V IC103 CD4094BPWR S/P CONV IC104 CD4094BPWR S/P CONV HDID1V HDID2V PSTP PSTD PSTM PSTC PST1 PST1U H1BS H1FS HFID1V HFID2V BIAS IC301 NJM2904 8V IC121 TA7805F +5 5V REG -12V PA-A UNIT ID DET IC101 TA7808F +8 REG RL51 S18 SW12 COMMON DC 13.8V 1 3 FILTER 2 4 RL CTRL PWRS J462 Q603/Q621 1 KTC4075/KRA302 2 3 4 EKEY ESTA 14V DC-DC IC131/Q131/D131 BD9851/CPH6316/RB160L MCK5 MDAT5 PAASTB5 PASTB5 DRESL5 IC431 BH2221 D/A IC432 CD4094B S/P CONV HPID1V HDID1V HDID2V HFID1V HFID2V L1 L2 L3 L4 L5 L6 L7 9 - 1