Sennheiser_DRM-85,_85C_Digital_Recording_Mic_Service_Manual 电路图.pdf

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1、SA 070931 Subject to alterations Sennheiser electronic GmbH selection with FlashMic Manager software or DRM 85 directly. Bit resolution (linear) _16 Bit Audio formats _linear PCM or MPEG 1 layer 2; selection with FlashMic Manager software or DRM 85.6 mode settings Bit rate (MPEG) _192 kbps, 160 kbps

2、 or 128 kbps Frequency response (recorder) without capsule _20 Hz to 20 kHz 1 dB at 48 kHz FS Linear PCM with capsule _see measured frequency response curves, page 11ff THD + N _ 74LVC32 1 U603 1 2 3 =1 74LVC32 2 U603 4 5 6 =1 74LVC32 3 U603 9 10 8 =1 74LVC32 4 U603 12 13 11 + - 74LVC32 U603 14 7 &

3、74LVT08 1 U604 1 2 3 & 74LVT08 2 U604 4 5 6 & 74LVT08 3 U604 9 10 8 & 74LVT08 4 U604 12 13 11 + - 74LVT08 U604 14 7 +3.3V 100nK C635 100nK C636 USB OE RW +3.3V 3.3uN L602 10nK C600 * SI2302DS Q601 100KJ R632 1.0MJ R631 SHDN_CTRL_BATT 10KJ R633 +3.3V USB_EOT SI2302DS Q604 100KJ R603MODE 1.0MJ R602 HM

4、470 L603 HM470 L604 A1 A2 A4 A3 A8 A6 A7 A5 D16 D17 D19 D18 D21 D20 D22 D23 D25 D24 D26 D27 D29 D28 D30 D31 -UBatt +UBatt 120406Lew1440 Chassis * = not mounted C600 C606 C608 R613 Processor board, circuit diagram, part 3/3 DRM 85-C, DRM 85 40/4108/2007 C400 C404 C411 C601 C602 C603 C604 C605 C609 C6

5、11 C635 C636 L602 Q601 Q604 R403 R405 R406 R410 R601 R602 R604 R605 R607 R608 R609 R631 R632 TP401 TP402 TP406 TP415 TP416 TP417 TP421 TP453 U401 U604 C401 C403 C516 C519 C620 C621 C622 C623 C624 C625 C626 C627 C628 C629 C630 C631 C632 C633 C634 J400 R409 R542 R558 R559 R606 R614 R615 R624 R633 304P

6、T004PT TP404 TP410 TP414TP419TP420 TP423TP424 TP506 Y600 TP507 C500 C501 C502 C503 C504 C505 C506 C507 C508 C509 C510 C518 C520 R400 R500 R501 R502 R503 R504 R505R507 R509 R515 R516 R518 R519 R520 R521 R522 R523 R524 R528 R531 R532 R533 R534 R535 R536 R537 R550 R552 R562 TP405 TP408 TP411 TP418 TP42

7、2 TP425 TP426 TP427 TP500 TP503 TP511 TP512 C513 C612 C615 C618 D500 D501 D502 D503 D603D604 D605 D607 Q603 R512 R513 R514 R525 R526 R529 R538 R541 R543 R544 R545 R546 R548 R551 R618 R619 R620 R621R622 TP407 TP412 TP413 TP501 TP502 TP504 TP505 TP508TP509TP514 TP515 U502 TP513 TP510 R530 R527 R517 R5

8、11 R510 R508 R506 TP409 TP428 TP600 Y500 Processor board, printed circuit board, component side DRM 85-C, DRM 85 08/200741/41 M2 C406 C407 C408 C409 C410 C607 C610 D602 L600 L601 L604 M3 M4 M5 Q602 R401R402 R404 R407R411 R547 R549 R557 R611 R612 R616 R617 TP429TP444 U400U402 U403 U600 U603 C511 C512

9、 C515 C613 C614 C616 C617 C619 D504 D505 D608 R540 R553 R554 R555 R603 R623 TP432 TP434 TP436 TP438 TP440 TP441 TP442 TP445 TP446 TP447 TP448 TP449 TP451 TP452 U501 U503 U602 U601 R556 C402 L603 M1 J500 TP431 TP435 TP437TP443 U500 C514 C517 C521 C522 C523 C524 D609 IF1 S500 TP433 TP439 TP450 TP430 Y501 Processor board, printed circuit board, solder side