Icom IC-7410 Service Manual - Page 21
REFERENCE FREQUENCY SIGNAL, Check point, Adjust points, LOCK VOLTAGE, LO LEVEL, RX 2ND LO LEVEL
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Page 21 highlights
• THE LOCATION OF ADJUST/CHECK POINTS ON THE PLL UNIT R985 L982 C983 R984 R986 27 J852 M To RF-A FI981 C134 C133 C132 C131 C981 R806 R804 C808 C807 L802 C801 L812 R724 R983 R981 R805 C810 L981 R982 R809 L801 L803 C805 C803 C715 R731 R734 R733 R735 C717 L811 R722 R720 R721 R718 R719 R716 R717 R714 R715 R712 R713 C705 R711 R710 R709 R708 R707 C709 R706 R705 R704 R703 IC703 R725 J701 MKR To RF-A N L702 Q701 L703 R732 C716 C718 R801 C713 C706 R730 IC702 C704 R702 IC704 C707 C710 R723 IC701 C702 C701 R701 D801 R913 C672 C673 R678 L673 R679 Q801 C800 R803 Q802 R802 Q803 R807 R902 C901 R901 R911 R904 Q903 R900 Q902 Q900 Q851 R851 C850 R852 L851 C851 L850 Q852 D851 Q850 R850 C853 L852 J671 C856 R854 L853 C855 R857 C858 R853 R855 I CODEC To MAIN J851 J T3Lo To MAIN R677 C676 C675 L672 RX 2ND LO LEVEL Check point CODEC CLOCK LEVEL Check point TX 3RD LO LEVEL Check point 121 IC124 R728 R727 R729 R726 708 C703 C382 R403 C358 C359 R30 R359 C381 C360 L381 R360 C404 R405 C408 R404 R406 L401 FI401 C405 L402 D451 C411 C407 R408 D421 C459 R451 L451 C452 R454 L452 C454 C451 C453 C455 C456 L453 C458 C457 R422 R407 R409 C429 R421 L421 C422 R423 C430 R424 L422 C424 R411 C421 C423 C425 C426 L423 C428 C427 D422 EP500 Q502 Q422 Q452 R452 C460 Q421 Q451 C462 C499 R453 D452 C500 R502 C501 C502 R503 R501 R499 Q501 C513 R506 L505 R508 J501 L R509 R507 C512 C510 C511 L504 D501 C509 C506 L502 C505 C504 C503 IC501 L501 EP501 C507 R504 C508 R505 L503 Q203 Q202 C208 C207 L201 R205 R206 C303 C302 C206 C205 C203 R208 D201 Q201 C202 R207 IC201 R203 L152 R202 R201 C201 L153 C158 C204 R204 C221 C222 CP221 L551 L552 C554 R156 Q573 C159 R154 C151 C153 Q551 R222 R221 C551 C157 C156 R157 Q151 R553 R552 R551 R554 C552 R555 C553 R155 C154 C155 R580 Q574 Q572 X151 C152 L151 R152 R151 R153 R558 C563 Q552 C556 C555 R556 R557 R561 C562 EP151 R559 R560 C561 R573 C571 R571 R581 R574 J571 K T2Lo To MAIN 4 R575 C572 R572 Q571 C573 R577 R579 R578 REFERENCE FREQUENCY SIGNAL Adjust points LOCK VOLTAGE Check point REFERENCE FREQUENCY SIGNAL Check point LO LEVEL Check point 4 - 3
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