Icom IC-7410 Service Manual - Page 97

TO BPF • MAIN UNIT (MAIN-6) HV HV 8V 8V MAIN-2 R3301 10k 4.7k R3304 4.7M R3300 MAIN-1 ALCL_ VDL_ IDL_ VDL_ IDL_ 1.8k R3309 Q3303 R3307 2SA1586 1k 2.15 D3301 DB2S31400 R3306 1k D3304 MAZ8036GL D3302 KDS4148U KDS4148U D3303 100k R3310 IC3251 2 1 3 NJM3404AV 8.5 8.7 R3265 1M R3264 390k IDLV 2.21 2.21 R3255 2.2M 13 D3252 R3254 14 12 KDS4148U 100 IC3271 NJM3403AV R3257 R3258 100k 68k 6.43 R3256 6.8k R3259 10k D3253 R3260 D3254 KDS4148U NTCG16 KDS4148U R3303 100k R3302 0 R3275 220k D3271 R3271 IC3271 6 7 330 5 KDS4148U NJM3403AV 0 R3276 1.66 R3280 47k 47k R3283 R3289 R3284 MA2S7280G D3275 220k 330k IC3251 6 7 5 NJM3404AV R3297 22k R3298 22k R3293 R3290 R3272 D3272 120k 330k 22k MA2S7280G 4 V+ GND 11 IC3271 NJM3403AV R3285 100 IC3251 8 NJM3404AV V+ GND 4 C3279 0.1 C3253 0.1 R3266 100 EALC IDLV REFL_ 8.59 8.77 IDHV ICCV ALC C3278 1 1.04 ALCL_ VDL_ IDL_ R3262 ALCL_ 1.5k R3273 C3272 100 1 C3271 0.47 C3286 1 Q3306 KTC2875 C3251 0.001 R3251 3.3M 8 9 R3252 R3267 10 IC3271 1.8M NJM3403AV 1.5M R3263 68k R3268 470k R3308 4.7k C3275 C3276 1 1 C3277 1 R3277 1.8k D3274 R3281 KDS4148U 330 C3282 10P R3286 2.2M 2 1 3 IC3271 NJM3403AV R3295 0 R3291 220k R3292 220k C3284 0.1 R3270 4.7k Q3271 KTC2875 Q3305 KRC402 Q3272 KRA302E Q3275 2SK3018 Q3276 KTC4075 R3299 220k R3288 47k R3294 22k C3283 1 FORL_ R㧦F0.P4w4r VR MIN KDS4148U D3277 R3282 100k POCV T8V C3280 10 R3287 1k 2.79 0.0 MFMS MAMS R3261 4.7k R3253 18k MAIN-3 ALC ALC T8V MAIN-2 ALC EALC IDLV IDHV REFL_ FORL_ MAMS MFMS NASBS POCV ICCV T8V EALC IDLV IDHV REFL_ FORL_ MAMS MFMS NASBS POCV ICCV R3305 1M Q3301 KRA302E Q3302 KRC402 NASBS TO PLL • RF-A UNIT (RF-1) C302 0.1 IC303 16 VCC STROBE 1 15 OE DATA 2 14 3 Q4 CP 13 4 Q5 Q0 12 5 11 Q6 Q1 6 10 Q7 Q2 7 9 QS2 Q3 8 QS1 GND CD74HC4094M DRES_ RASTB_ MDAT _ MCK_ IC305 16 1 15 VCC STROBE 2 OE DATA 14 3 Q4 CP 13 4 Q5 Q0 12 Q6 Q1 5 11 Q7 Q2 6 10 QS2 Q3 7 9 8 QS1 GND CD74HC4094M R326 4.7K R301 0 4.90V HPR2S HPR1S HPOFS B0 Q331 KRC404E B7 B1 Q333 KRC404E B8 B4 Q329 KRC404E B6 B2 Q327 KRC404E B5 B8W B3 Q323 KRC404E HATTS R351 R352 1K R353 1K Q317 1K KRC404E R317 1K R331 Q319 1K KRC404E R319 1K R333 Q325 1K KRC404E R325 1K R329 Q321 1K KRC404E R321 1K R327 Q335 1K KRC404ER335 1K R323 Q337 KRC404E 1K R343 1K _HPR2S _HPR1S _HPOFS _B0 _B7 _B1 _B8 _B4 _B6 _B2 _B5 _B8W _B3 _HATTS C303 0.1 ATT ON‫ޓ‬4.89V 2.89 0.01 EP301 MMZ1608B301CT 0.00 7.92 7.90 0.00 R482 Q481 2SD1664 33 R483 R484 R485 3.3k 3.3k D481 R481 3.3k 10K Q482 KTC4075 KDS122 0.01 3.09 HIFOPS2 HIFOP1S R496 +5V +14V +8V 33 R492 R493 R494 33 3.3k 3.3k R495 R491 3.3k 10K Q492 KTC4075 HTXS R8V HRXS Q311 KRC404E Q312 KRA302E Q491 2SD1664 D491 KDS122 R314 +8V 0 Q309 KRC404E R316 10K R315 Q310 10K KRA302E +5V C481 0.47 C491 0.47 EP305 M PZ1608S601A C305 0.1 J451 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 14V 8V_ HRXS_ HTXS_ DRESL RASTB MDAT MCK ALC_ HAGC_ +5V_ 3R3V_ -12V_ +10V_ R455 R456 EP456 EP454 EP455 1 1 MPZ1608S601A MPZ1608S601A MPZ1608S601A R454 R451 R453 R452 R459 EP452 DRES_ 100 RASTB_ 100 MDAT _ 100 MCK_ 100 0 MMZ1608B301CT EP457 MPZ1608S601A EP453 MMZ1608B301CT EP459 MPZ1608S601A EP458 MPZ1608S601A R457 R458 10K 10K +14V +8V HRXS R8V T8V ALC HAGC +3R3V -12V +10V HIFOP1K HIFOP2K 0.001 0.1 0.1 0.1 0.1 0.1 0.1 0.1 470 EEE-S 0.1 100P 100P 100P 100P 100P 100P 0.001 0.001 0.1 10 0.1 0.1 10 0.1 10 10 0.1 100P 100P C476 C471 C475 C478 C470 C479 C480 C454 C472 C473 C474 C453 C469 C468 C466 C467 C462 C459 C461 C460 C463 C464 C457 C458 C465 C451 C452 C455 C456 4.29 3.29 -11.87 10.08 +5V R8V T8V PRE PPF :4.90V PRE 1 ON: 4.90V PRE 2 ON: 4.90V HPOFS HPR1S HPR2S B0 B1 B7 B3 B8 B8W B4 B5 B6 B2 HATT S 8V 14V GND 5V R8V T8V J301 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 RF-2 B8W B5 B8W B8 B5 B8 _HIFWS _HIFOP2S _HIFOP1S +14V +8V +5V HRXS R8V T8V ALC HAGC +3R3V -12V +10V HIFOP1K HIFOP2K 10 - 11