Panasonic-SAAK44-cs-sch 电路图 维修手册.pdf

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1、1 2 4 3 JK501 E500 R540 4000 -9V +9V +5V +Vin1 -Vin1 LOW ACTIVE GND +3.3V +10V +15V 65987 +Vin2 1817161534211410111213 IC501 IC501 STK470-090 VOLTAGE REGULATOR 13 12 11 10 2 4 6 8 9 7 5 3 1 H500/W500 - + + - JK500 2625242322212019171416151810 9 111213 87653421 IC500 IC500 RSN309W44B HIC 12 11 10 2 4

2、 6 8 9 7 5 3 1 CP500 12 11 10 2 4 6 8 9 7 5 3 1 CP501 D501 D500-D501 RL1N4003S-P D500 D510 RK306LFU1 D509 RK306LFU1 Q505 2SD2144STA POWER CONTROL SWITCH HP : ON/OFF Q501 Q503 Q501,Q503 KTC3199GRTA SWITCH DC DETECT Q504 2SD1859QRTV2 REGULATOR +48V FOR IC500 R541 1.5K R542 1.5K R539 2.2 R538 2.2 R534

3、10 R510 330 R515 4.7K R537 10 R535 10 R528 22K R504 15K R507 5.6K R506 5.6K R518 470K R527 100K R520 4.7 R526 10K R503 5.6K R502 5.6K R511 56K R512 56K R513 56K R514 56K R523 120K R519 4.7 R524 150K R522 220K R525 180K R500 15K R501 15K R536 10 R516 330 R517 4.7K C54150V100 C54050V47 C518 50V47 C538

4、 50V47 C539 50V47 C517 50V47 C519 16V10 C537 50V100 D507 D504 D503,D504,D507,D508 MTZJ24DTA D503 D508 C505 0.01 C508 0.01 Q502 2SB1238QRTV2 REGULATOR -48V FOR IC500 C524 0.047 C509 0.01 C516 0.047 C514 22P C530 0.047 C526 0.047 C528 0.047 C515 0.1 C507 0.01 C511 15P C512 15P C513 22P C506 470P C503

5、470P C500 470P C502 470P GND1 +15V HI_LCH HI_RCH LOW_CH GND1 CD DCDET PCONT HP_SW +9V -9V GND1 8V CD3.3V SW5V LED9V 10V Rch Lch Rch SPEAKER Low Channel 6 Ohm 6 Ohm High Channel P.GND DGND Lch SPEAKER C_CH S_CH S1 S1 S1 S1 S2 S2 GND S2 S2 SUB+B SOLSOR-COUT+COUT-CIN+CINSIRSILR OUTL OUTDET IH HMUT DISP

6、 R INL IN +VCC Hi -VCC Hi +VCC LOW -VCC LOWAC INGND +Di SENS -Di SENS RELAY+VD-VD IN GND GND VP (AC) SUB+B_GND R543 1000 D512 D511-D517 1N5402BM21 D514 D511 D513 C521 D516D515 D518D517 C534 35V3300P C533C532 50V5 5600P C531 35V3300P R521 150 R532 150 D505 D506 D505-D506 RVD1SS133TA Q506 Q506-Q507 KT

7、C3199GRTA SHORT CIRCUIT PROTECTION Q507 R544 47K D519 D520 D521 D522 R545 47K D519-D522 MTZJ20BTA (0V) (0V)0V (0V) (0V)0V (48.7V) (48.7V)48.7V (-48.9V) (-48.9V)-48.9V (0V) (0V)0V (25.88V) (25.88V)25.88V (-26.21V) (26.24V)-26.21V (0V) (0V)0V (0.21V) (0.21V)0.21V (-12V) (-12V)-12V (0V) (0V)0V (0V) (0V

8、)0V (-12.11V) (-12.11V)-12.11V (-0.27V) (0V)0V (26.15V) (26.15V)26.15V (-26.52V) (-26.52V)-26.52V (-10.12V) (-10.12V)-10.12V (0V) (0V)0V (0V) (0V)0V (-47V) (-47V)-47V (0V) (0V)0V (0V) (0V)0V (0V) (0V)0V (0V) (0V)0V (0V) (0V)0V (0V) (0V)0V (15.63V) (15.18V)15.38V (9.96V) (9.95V)9.95V (0.13V) (3.28V)0

9、.13V (0V) (0V)0V (2.47V) (0.25V)2.47V (-26.55V) (-26.58V)-26.55V (-9.71V) (-9.7V)-9.71V (-9.08V) (-9.07V)-9.08V (4.95V) (4.95V)4.95V (9.07V) (9.06V)9.06V (13.87V) (13.86V)13.87V (25.8V) (25.86V)25.79V (25.81V) (25.88V)25.81V (0V) (0V)0V (0V) (0V)0V (0V) (0V)0V (0V) (0V)0V (0V) (0V)0V 4 3 2 1 C536 0.

10、18 C522 0.1 (0V) 0V(0V)0V (-0.06V) -0.06V(-0.07V)-0.06V (5.16V) 5.19V(5.17V) 5.19V (-0.01V) -0.01V (-0.01V) -0.01V (5.14V) 5.16V (5.14V) 5.16V (-49.2V) -49.1V(-49.1V)-49.1V (-47.7V) -47.9V (-47.9V) -47.9V (-47.4V) -47.3V (-47.3V) -47.3V (48.9V) 48.9V(48.9V) 48.9V (47.6V) 47.8V(47.7V) 47.6V (47.1V) 4

11、7.1V(47.2V) 47V (0.2V) 0.2V(0.2V) 0.2V (-0.01V) -0.01V (-0.01V) -0.01V (-0.01V) -0.01V (-0.01V) -0.01V (5V) 5V(5V) 5V (5V) 5V(5V) 5V (0V) 0V(0V) 0V (0V) 0V(0V) 0V (5V) 5V(5V) 5V (-5V) -5V(-5V) -5V L550 R550 10L551 R551 10 50V5 5600P C550 0.01 C551 0.01 C552 0.047 L552 R552 10 L551 RLQZR73MT-T L552-L

12、553 RLQZR73MT-T L553 R553 10 C553 0.047 SCHEMATIC DIAGRAM - 11 POWER CIRCUIT TO MAIN CIRCUIT (CN300) ON SCHEMATIC DIAGRAM-6 TO MAIN CIRCUIT (CN301) ON SCHEMATIC DIAGRAM-6 TO TRANS CIRCUIT (CN501) ON SCHEMATIC DIAGRAM-12 : MAIN SIGNAL LINE 0.1 : +B SIGNAL LINE: -B SIGNAL LINE RadioFans.CN 收音机爱 好者资料库

13、30 29 2228272625 7654321 2324 21201915161718 141312111098 IC703 IC703 AN8739SBE2 FOCUS COIL/ TRACKING COIL/ TRAVERSE MOTOR/ SPINDLE MOTOR DRIVE R729 3.9K R728 3.9K R727 3.9K R749 4.7K R723 6.8K R731 6.8K R725 390 R715 1K R724 18K R735 100 R736 100 R701 4.7 R704 1K R744 120K R705 150K R702 10K R706 1

14、K R707 39K R708 22K C752 1000P C739 1500P C715 2700P C704 0.1 C742 0.027 C747 180P C710 120P C749 2200P C713 0.1 C707 0.027 C702 0.1 C706 2700P C712 0.1 C711 0.1 C751 0.1 C750 0.1 C736 0.1 C737 0.1 C735 0.1 C C C C C C738 0.01 C703 6.3V100 C701 6.3V33 C714 6.3V100 C734 10V220 M M701 M M702 1 3 5 7 9

15、 8 6 4 2 10 11 12 13 14 15 16 CN701 1 3 5 7 9 8 6 4 2 10 11 12 13 14 15 16 Q701 Q701 2SA1037AKSTX LASER POWER DRIVE 1521201918171624232228272625 1413121110 987654 321 IC701 IC701 AN8885SBE1 SERVO AMP 81 2 3 45 6 7 VCC NC 3837 3536 33 2930 GND TEN FEN FEOUT FBAL TBAL TEOUT CEA RF LPD LD RFIN PDF PDE

16、PDB PDA VREF ENV OFTR /RFDETGND LDON BDO VCC SP MOTOR TRV MOTOR NC RSTIN IN3 IN4 VREF NC /RST GND GND PVCC2 PGND2 D4+ D4- D3+ D3- PGND1 PVCC1 NC D2+ D2- D1+ D1- IN1 NC PC2 NC IN2 GND CSBRT LASER DIODE 11 12 10 6 8 5 4 9 2 3 GND VCC AIN BIN VREF NAOUT GND NBOUT F+ F- T+ T- LPD VREF NA NB GND LD GND L

17、D PDE PDF VCC NC PDOWN NC NC NC 28 3.3V(3V) 3.3V(3V) 3.3V(3.5V) 3.3V 7.3V 7.3V 7.3V 1.6V 1.6V 1.6V 3.3V(3.5V) 3.3V 3.7V(3.5V) 3.7V(4.1V) 1.6V 1.6V 3.2V(0V) 1.6V 1.6V 3.2V 2.7V (2.3V) 0.9V (2V) R750 4.7 SCHEMATIC DIAGRAM -1 CD SERVO CIRCUIT OPTICAL PICKUP CIRCUIT : CD SIGNAL LINE 1.6V 1.6V 1.6V 1.6V

18、3.2V 0V(0.2V) 2.7V(2.3V) 0.9V(1.4V) 0.7V 1.9V 1.6V 0V 0V(3.1V) 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 0V 0V(3.2V) : +B SIGNAL LINE RadioFans.CN 收音机爱 好者资料库 40 41 42 43 39383736353433323130292827262524232221 20 19 18 4417 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 6162636465666768697071727374757

19、6777879 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 80 1 IC702 MN662790RSC R714 120 R717 1K R709 68K R711 82K R721 100 R718 1K R712 220 R741 47K R742 220K R753 10 C722 10P C721 10P C724 0.1 C744 8200P C726 1000P C725 1000P C730 0.1 C754 470P C733 0.1 C718 0.22 C716 820P C745 1000P C717 0.1 C753 470P C743 0

20、.1 C727 50V1 C728 50V1 C731 6.3V220 C723 10V220 C732 6.3V220 S701 X701 1 3 5 7 9 8 6 4 2 10 11 12 13 14 15 16 17 18 19 CN702 SPEED RESY SSEL BYTCK DEMPH IN DVSS1 DVDD1 VDD AVSS2 AVDD2 OUT /CLDCK FCLK IPFLAG FLAG CLVS CRC /TEST AVDD1 AVSS1 RSEL PSEL MSEL BCLK LRCK SRDATA TX MCLK MDATA MLD SENSE /FLOC

21、K /TLOCK BLKCK SQCK SUBQ DMUTE STAT /RST SMCK TVD PC ECM ECS TRD FOD VREF FBAL TBAL FE TE RFENV VDET OFT TRCRS /RFDET BDO LDON WVEL ARF IREF DRF DSLF PLLF EFM PCK SUBC SBCK VSS X1 X2 OUTR OUTL 1516 21 20 22 23 RESET SW PLLF2 VCOF VCOF2 IOSEL IOVDD CSEL 11 10 9 DSLF2 RESET SW 1 KICK TRV /RST 3 STAT 4

22、 SUBQ 6 SQCK 7 BLKCK 8 MLD MDATA MCLK P.GND +7.5V 17 TX LD SW D.GND +3.3V RCH OUT A.GND LCH OUT 19 RSXB16M9J02T 0V(3.2V) 0V(3.2V) 0V 0V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 1.6V 3.2V(0V) 3.2V 1.6V 3.2V 0.5V 3.2V 0V 0V(0.2V) 3.2V(3.1V) 0V(3.1V) 3.1V 3.2V 3.2V 2.9V 1.5V 1.5V 2.9V 3.2V 3.2

23、V 3.2V 1.5V 1.5V 3.2V 0.5V 1.6V 1.6V 1V 1.6V 1.5V SERVO PROCESSOR DIGITAL SIGNAL PROCESSOR/ DIGITAL FILTER/ D/A CONVERTER TJ702 18 SCHEMATIC DIAGRAM - 2 : CD SIGNAL LINE CD SERVO CIRCUIT TO PANEL CIRCUIT (CP606) ON SCHEMATIC DIAGRAM-8 : +B SIGNAL LINE RadioFans.CN 收音机爱 好者资料库 : FM/AM SIGNAL LINE 50V1

24、 IC101 IC102 Q101 Q106 D S G D S G Q102 Q110 AM LOOP ANT AM EXT ANT JK101 75 FM EXT ANT L102 8 7 1 3 4 2 5 6 2 1 4 Z120 (EN17290G1Y) GND C101 0.01 C102 16V100 C117 0.01 C118 0.01 C137 3300P R123 68K R102 4.7K C139 50V4.7 C131100P R143 22K C115 C119 560P R120 47K C116 0.033 C138 0.01 C120 16V10 R121

25、22K R118 C127 C109 1000P C114 C126 1 Z102 R119 12K C106 0.01 C148 0.01 C147 1000P R124 33 X102 R127 470 C122 R122 2.7K C121 50V0.47 C123 50V1 C113 1000P R151 82 R116 1K R115 560 C111 50V4.7 R113 10K R111 390 R129 27K C124 100P R128 82 R130 10K C130 6.3V100 C132 1000P D101 UDZSTE175R1B C125 16V22 C13

26、4 27P C133 27P C112 0.01 X103 IC102 LC72131MDTRM PLL FREQUENCY SYNTHESIZER IC101 LA1833NMNTLM FM/AM IF AMP DET/AM OSC MIX/ FM MPX C142 50V1 R142 6.8K C141 50V1 R141 6.8K R145 100K C143 4700P R146 100K C144 6800P 0.1 C129 6.3V100 C149 R131 R137 1K R136 1K R135 1K R134 470 CE PLLDA PLLCK DO/ST R138 3.

27、3K R132 10K R133 1K SD DO/ST R126 1K R125 470 RCH CE LCH PLLDA DO/ST PLLCK 15V DO/ST DET_OUT SD +7.5V 2A 1A Q106 KRA102MTA POWER SUPPLY CONTROL (FM : ON) R110 1K R114 5.6K R152 C110 0.01 C107 0.047 R112 100K C108 8P R117 68K R103 100 R105 470 C104 1000P R106 470K R107 330 C103 0.01 Q101 2SC2058SPTA

28、FM IF AMP R104 10K 2 13 TUNGND 0 68 L101-L102 RLQB1R0KTD-D RLFDFT22DD RSXC7M20S05T Z101 RLA2Z007-T RLI2Z021M-T C136 1000P 1 2 3 4 5 6 789 3 2 1 56 4 CF201 RLFFETNGD01L 2 13 R139 22K R140 22K Q110 2SC3311ARTA R108 470K C105 1000P R109 330 Q102 2SC2058SPTA FM IF AMP 22P 15P 0.47uH 18P 100K 1P HVM27 33

29、K 8P 8P 100K 0.022 22 7P 0.022 HVM27 33K 33K HVM27 4P 4P 22P 1P 1uH 220P 100uF 10K 0.022 IFT 330 330 150 15P 470K 2P 18P 1.2K220 0.022 16V 33P 10K 10K 100K 8P 47P HVM27 2.7K 3P L101 CF201 RLFFETMGD01L 3 9101112 13141516 87653421 1718192021222324 OSC OUT OSC AFC AM RF IN AGC AM OUT DET OUT PILOT IN M

30、PX IN PILOT OUT RCH LCHMONO FM/AM STRQ VCC FM DET ST SD GND AM RF IN REG AM MIX OUT FM IF IN 910 111213141516 87653421 17181920 XOUT VSS AOUT AIN PD VDD FMIN AMIN MONO IFINFM STRQ SWB SWA AM DO DI CE CL XIN SCHEMATIC DIAGRAM - 3 TUNER CIRCUIT : FM SIGNAL LINE: AM SIGNAL LINE : FM OSC SIGNAL LINE: AM

31、 OSC SIGNAL LINE : +B SIGNAL LINE 3.3K16V22 50V3.3 50V4.7 (2.07V) (2.09V) 2.09V (6.42V) (6.27V) 6.28V (2.07V) (2.07V) 2.08V (2.06V) (2.08V) 2.07V (0V) (0V) 0V (5.14V) (4.22V) 5.12V (5.16V) (5V) 5.16V (5.15V) (4.13V) 4.12V (6.43V) (6.17V) 6.27V (0.02V) (3.68V) 3.68V (1.32V) (5.19V) 5.19V (4.55V) (3.7

32、6V) 3.72V (1.76V) (1.78V) 1.77V (1.75V) (1.76V) 1.76V (2.01V) (2.02V) 2.02V (2.07V) (2.08V) 2.08V (2.06V) (2.07V) 2.07V (1.56V) (2.36V) 2.36V (1.25V) (2.02V) 1.86V (0.75V) (0.25V) 0.25V (2.06V) (2.46V) 2.46V (2.06V) (2.46V) 2.46V (6.42V) (6.27V) 6.27V (5.01V) (4.85V) 4.85V (2.61V) (2.61V) 2.62V (0.5

33、5V) (0.77V) 0.55V (0.02V) (0.23V) 0.02V (0.02V) (4.75V) 0.02V (5.16V) (5.03V) 5.16V (0.18V) (5.19V) 5.19V (4.98V) (4.83V) 4.83V (0.02V) (4.43V) 4.43V (12.3V) (12.31V) 12.25V (0V) (0V) 0V (0V) (0V) 0V (2.49V) (2.59V) 2.59V (0V) (0V) 0V (5.16V) (5.16V) 5.17V (0.9V) (0V) 0V (0.9V) (0V) 0V (1.84V) (12.3

34、3V) 12.26V (0V) (0V) 0V (2.6V) (2.6V) 2.6V 0V (0V) 13.6V (13.6V) 13.6V (13.6V) 0V (0V) 0V (0V) 0V (0V) 0V(0V) 0V (0V) 0V (0V) TO MAIN CIRCUIT (1B) ON SCHEMATIC DIAGRAM-4 TO MAIN CIRCUIT (2B) ON SCHEMATIC DIAGRAM-4 AM ANT COIL AM OSC COIL JK305 D318 UDZSTE177R5B BPOUT BPMF A B C INLA INRA INLB INRB I

35、NLC INRC INLD INRD SCK SI ALCR ALCC RECL RECR VFC1 GND VFC2 MIC F1L2 F1L1 DPLL1 DPLL2 DPLR2 DPLR1 PS2 PS1 F3R2 F2L2 F2L1 F1R2 F1R1 F3R1 F2R2 F2R1 F5L F4R2 F4R1 F4L1 F4L2 F3L2 F3L1 373839404142434445464748343536 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 15141312111098765432 64 1 IC301 BH3874AKS2 A

36、UDIO SOUND PROCESSOR 1 2 4 6 8 10 9 7 5 3 CN304 C308 0.1 C310 0.047 C304 0.047 C306 C307 50V0.15 C305 4700P C204 220P C404 220P C311 50V0.33 C336 4700P C315 0.1 C334 4700P C322 0.022 C324 0.022 C341 1000P C312 50V0.15 C335 4700P C340 4700P C323 0.022 C333 0.022 C301 1000P C300 0.01 C313 0.1 C314 0.1

37、 C316 0.1 C402 100P C202 100P C401 C201 680P C357 16V10 C433 50V2.2 C233 50V2.2 C207 16V10 C407 16V10 R304 10 R303 10K R371 4.7K R367 10K R301 100K R208 10K R302 R207 1.5K R209 47K R210 1K R409 47K R410 1K R407 1.5K R408 10K R412 4.7K R212 4.7K R411 2.2K R211 2.2K R300 4.7K R213 56K R413 56K R215 1K

38、 R415 1K R402 R202 10K R201 R401 20 19 18 17 1615 14 13 121110246897531 CN303 C236 50V2.2 C436 50V2.2 C43550V2.2 C235 50V2.2 C234 50V4.7 C43450V4.7 C303 16V10 28 27 2625 CDL CDR SPC SPB SPA CHG_PLGR CHG_HALF DC_DET2 DC_DET1 PLLDA PLLCLK PLLCE1 PGND CD7.5V TX VREF+ /CD CD3.3V HP_SW HPL HPR SPC SPB SP

39、A SPEANA ASP_CLK RCH CE LCH PLLDA DO/ST PLLCLK 15V DO/ST SD 7.5V+9.0V MUTEA PBL PBR 15V RECL RECR MO10V Rch Lch AUX HP_GND AUX1_R 301 302 TUN_GND MOGND DGND MECA.G AGND AUX1_L CDDGND A.GND TO DECK CIRCUIT (H1001/W1001) ON SCHEMATIC DIAGRAM-10 TO TUNER CIRCUIT (2A) ON SCHEMATIC DIAGRAM-3 TO PANEL CIR

40、CUIT (CP605) ON SCHEMATIC DIAGRAM-8 TO TUNER CIRCUIT (1A) ON SCHEMATIC DIAGRAM-3 1B 2B 100K (4.52V) (4.52V)4.52V (4.52V) (4.52V)4.52V (4.52V) (4.52V)4.52V (4.52V) (4.52V)4.52V (4.52V) (4.52V)4.52V (4.52V) (4.52V)4.52V (4.52V) (4.52V)4.52V (4.52V) (4.52V)4.52V (4.52V) (4.52V)4.52V (4.52V) (4.52V)4.52

41、V (4.52V) (4.52V)4.52V (4.52V) (4.52V4).52V (4.52V) (4.52V)4.52V (4.52V) (4.52V)4.52V (4.52V) (4.52V)4.52V (0.01V) (0.01V)0.01V (0.64V) (0.64V)0.64V (2.2V) (2.19V)2.49V (2.2V) (2.19V)2.91V (2.2V) (2.19V)2.43V (4.55V) (4.5V)4.55V (4.51V) (4.51V)4.50V (4.51V) (4.51V)4.50V (4.51V) (4.50V)4.52V (4.51V)

42、(4.50V)4.52V (4.51V) (4.50V)4.52V (4.51V) (4.50V)4.52V (4.51V) (4.50V)4.52V (4.52V) (4.51V)4.52V (4.52V) (4.52V)4.52V R414 10K R214 10K PLLCE1 (4.53V) (4.53V)4.53V (4.53V) (4.53V)4.53V (4.53V) (4.53V)4.53V (4.52V) (4.52V)4.52V (0V) (0V)0V (4.54V) (4.54V)4.54V (4.53V) (4.53V)4.53V (4.53V) (4.53V)4.53

43、V (4.53V) (4.53V)4.53V (0V) (0V)0V (4.54V) (4.54V)4.54V (4.54V) (4.54V)4.54V (4.57V) (4.57V)4.57V (4.57V) (4.57V)4.57V (4.0V) (3.99V)3.99V (0V) (0V)0V SD ST_DO50V0.33 TX R309 470 CD3.3V C309 6.3V100 C302 0.01 UP_DGND 680P 3.9K 3.9K 10K C384 100P C383 1000P C382 1000P SCHEMATIC DIAGRAM - 4 : MAIN SIG

44、NAL LINE: FM/AM SIGNAL LINE : CD SIGNAL LINE: RECORD SIGNAL LINE : +B SIGNAL LINE MAIN CIRCUIT JK300 VCC GND INPUT 3 1 2 14 13 12 1110 246897531 CN309 STEPC FILTER CAP VCC HPFL1 HPFL2 HPFL3 HPFR1 HPFR2 HPFR3 BASS1 BASS2 BASS3 BASS4 BASS5 OUTL OUTR F5R 32 33 31 30 29 28 27 26 25 24 23 22 21 20 19 18

45、17 16 Q306 Q306 KRA102STA AUDIO MUTING CONTROL C363 100P C364 C356 0.22 C327 680P C337 1000P C319 0.01 C330 47P C329 100P C321 0.01 C320 0.01 C430 47P C318 0.01 C426 0.068 C227 680P C230 47P C229 100P C351 0.22 C352 0.22 C350 0.1 C349 0.1 C429 100P C427680P C226 0.068 C353 0.1 C348 C347 0.1 C346 0.0

46、68 C345 0.1 C344 0.1 C343 0.068 C342 1000P C365 0.47 C317 50V4.7 C431 50V3.3 C355 16V10 C362 50V2.2 C332 50V3.3 C231 C328 16V10 C428 16V10 C228 16V10 C354 10V220 R328 33K R373 15K R372 10K R379 4.7K R327 2.2K R323 47K R227 R326 100 R325 22K R324 1.8K R427 0 R422 4.7K R223 47K R225 3.9K R224 15K R383

47、 3.9K R376 12K R377 18K R385 68K R423 47K R424 15K R425 3.9K R375 8.2K R382 47K R381 47K R384 47K R374 8.2K R378 47K R358 47K R359 47K R346 22K R354 12K R347 12K R355 22K R353 10K R351 10K R345 220 R222 4.7K Q200 KTD1304TA MUTING SWITCH HIGH-CHANNEL RCH 5678 3421 IC304 IC304 BA4558FE2 DUAL OP-AMP 56

48、78 3421 IC302 IC302 M5218AP BUFFER AMP 24 23 2221 20 19 1817 16 15 14 13 1211 10246897 531 MUTEA PCONT NAS_A NAS_B LED9V +9.0V SW2 SW1 -VP DET_OUT ASP_DATA ASP_CLK ASP_LATCH SW5V CHG_AD1 CHG_AD2 CHG_CW CHG_CCW SPEANA ST_DO SD HPR HPL ASP_LATCH ASP_DATA SW5V +9.0V VREF+ VREF+ SW2 SW1 CHG_CW CHG_HALF CHG_CCW CHG_AD1 VREF+ SW5V CHG_AD2 DGND BOTTOMSW PLUNGER POSITION 5V DGND SW2 PGND SW1 OPEN CLAMP CHG_CCW 8V CHG_HALF CHG_CW TO CD LOADING CIRCUIT (CN1) ON SCHEMATIC DIAGRAM-12 TO PANEL CIRCUIT (CP607) ON SCHEM