Cambridge-L937CT-int-sch维修电路原理图.pdf

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1、1234ABCD4321DCBAISSUEDRAWING NO.23425DRAWING TITLEDrawn by:DATEFilenameECO No.DESCRIPTION OF CHANGEJ:Change_ControlECO_WIP03_E291 Transistor obsolete P7 A32 A90 C30 - MJTL937AY - A32 A90 preamp boardL937_1.2.ddb - DocumentsSchematicL937C1_1.2.PRJA & R Cambridge Ltd.Pembroke AvenueDenny Industrial Ce

2、ntreWaterbeachCambridge CB5 9PBIntegrated amplifier preampCircuit DiagramL937C1JBR9-Oct-2003 INITIALSDate Printed13SheetofNotes:Main signal pathL937C2_1.2.SCHPower supplyL937C3_1.2.SCHPCBPCB1L937PB_101_1142JBR14/8/01First production release1.001_E014JBR28/11/01Fuses uprated to 2A1.115mm x 6mm x 3mmD

3、AMPING PADE802APITEM115X6X3_DAMPING_PAD03_E291MJT07/10/03None to this sheet. Transistors Q301(4B5248) & Q305(4B1964) obsolete.1.2Replace with 4B5171 & 4B1930. Replaced 470p caps 2D147W with 2DA147Contact Tel: 01223 203200Contact Engineer: Mark TweedaleRadioFans.CN 收音机爱 好者资料库12345678ABCD87654321DCBAI

4、SSUEDRAWING NO.23425DRAWING TITLEDrawn by:DATEFilenameECO No.DESCRIPTION OF CHANGEJ:Change_ControlECO_WIP03_E291 Transistor obsolete P7 A32 A90 C30 - MJTL937AY - A32 A90 preamp boardL937_1.2.ddb - DocumentsSchematicL937C2_1.2.SCHA & R Cambridge Ltd.Pembroke AvenueDenny Industrial CentreWaterbeachCam

5、bridge CB5 9PBIntegrated amplifier preamp - main signal pathCircuit DiagramL937C2JBR9-Oct-2003 INITIALSDate Printed23SheetofNotes:EMC1NFSK2APHONO4GC1001N0 SM0V_SIG0V_SIGR1001K0 SMR1011K0 SMR103100K SMR104100K SMD100BAV99W DUAL SM+15V-15V0V_SIG0V_SIGD101BAV99W DUAL SM+15V-15VNFSK2BPHONO4G0V_SIGR1021K

6、0 SMR1251K0 SMR105100K SMR128100K SMD102BAV99W DUAL SM+15V-15V0V_SIG0V_SIGD106BAV99W DUAL SM+15V-15VEMC1NFSK3APHONO4GC1211N0 SM0V_SIG0V_SIGR1261K0 SMR1271K0 SMR129100K SMR130100K SMD107BAV99W DUAL SM+15V-15V0V_SIG0V_SIGD108BAV99W DUAL SM+15V-15VNFSK3BPHONO4G0V_SIGR1561K0 SMR1571K0 SMR159100K SMR1601

7、00K SMD112BAV99W DUAL SM+15V-15V0V_SIG0V_SIGD113BAV99W DUAL SM+15V-15VEMC1NFSK4APHONO4GC1391N0 SM0V_SIG0V_SIGR1581K0 SMR1891K0 SMR161100K SMR192100K SMD114BAV99W DUAL SM+15V-15V0V_SIG0V_SIGD115BAV99W DUAL SM+15V-15VEMC1NFSK5APHONO4G0V_SIGR1901K0 SMR1911K0 SMR193100K SMR194100K SMD116BAV99W DUAL SM+1

8、5V-15V0V_SIG0V_SIGD117BAV99W DUAL SM+15V-15VCD INPUTTUNER INPUTAV INPUTDVD INPUTTAPE INPUTVCR INPUTC1601N0 SM0V_SIGC1641N0 SM0V_SIG0V_SIGR1951K0 SMR1961K0 SMR197100K SMR198100K SMD118BAV99W DUAL SM+15V-15V0V_SIG0V_SIGD119BAV99W DUAL SM+15V-15VEMC1NFSK6PHONO2GAUX INPUTCD LCD RTUNER LTUNER RAV LAV RDV

9、D LDVD RTAPE IN LTAPE IN RVCR IN LVCR IN RAUX LAUX RAUX LCD LTUNER LAV LDVD LVCR IN LMODULE L0V_SIGAUX RCD RTUNER RAV RDVD RVCR IN RMODULE R0V_SIGTAPE 0TAPE 1TAPE 2TAPE 0TAPE 1TAPE 2+15V+15V-15V-15V0V_SIG0V_SIGC104100N SMC105100N SM+15V-15V321Z109ATL072 SM84Z113CTL072 SMR1061M0 SM0V_SIGR10847R SMD10

10、3BAV99W DUAL SM+15V-15VNFSK4BPHONO4G0V_SIG567Z109BTL072 SMR1071M0 SM0V_SIGR10947R SMD104BAV99W DUAL SM+15V-15V321Z110ATL072 SMR1311M0 SM0V_SIGR13347R SMD109BAV99W DUAL SM+15V-15V567Z110BTL072 SMR1321M0 SM0V_SIGR13447R SMD110BAV99W DUAL SM+15V-15VNFSK5BPHONO4G0V_SIG+15V+15V-15V-15V-15V-15VC108100P SM

11、C109100P SMC129100P SMC130100P SMAUX LCD LTUNER LAV LDVD LTAPE IN LMODULE L0V_SIGAUX RCD RTUNER RAV RDVD RTAPE IN RMODULE RVCR 0VCR 1VCR 2VCR 0VCR 1VCR 20V_SIG0V_SIG0V_SIGTAPE OUTPUTVCR OUTPUTC106100N SMC107100N SM+15V-15V0V_SIGC125100N SMC126100N SM+15V-15V0V_SIGC127100N SMC128100N SM+15V-15V0V_SIG

12、AUX LCD LTUNER LAV LDVD LTAPE IN LVCR IN LMODULE LAUX RCD RTUNER RAV RDVD RTAPE IN RVCR IN RMODULE RLISTEN 0LISTEN 1LISTEN 2LISTEN 0LISTEN 1LISTEN 20V_SIG0V_SIGC143100N SMC144100N SM+15V-15V0V_SIGC145100N SMC146100N SM+15V-15V0V_SIG84Z114CTL072 SMR17022K SMR16222K SMR17122K SMR16322K SMR17222K SMR16

13、422K SMR17322K SMR16522K SMR17422K SMR16622K SMR17522K SMR16722K SMR17622K SMR16822K SMR17722K SMR16922K SM+15V+15VR17822K SMC14822P SMR17922K SMC14922P SM567Z115BOPA2134PA SM567Z116BOPA2134PA SM84Z116COPA2134PA SM0V_SIG0V_SIGR1831M0 SMR1841M0 SMR199100K SMR180100K SM0V_SIG0V_SIG+5V+5V+5V+5V+5V+5VX0

14、4X15X26X37X412X511X610X79EN2A01A116A215V-3D8GND14V+13Z100DG408DYX04X15X26X37X412X511X610X79EN2A01A116A215V-3D8GND14V+13Z101DG408DYX04X15X26X37X412X511X610X79EN2A01A116A215V-3D8GND14V+13Z102DG408DYX04X15X26X37X412X511X610X79EN2A01A116A215V-3D8GND14V+13Z103DG408DYX04X15X26X37X412X511X610X79EN2A01A116A

15、215V-3D8GND14V+13Z104DG408DYX04X15X26X37X412X511X610X79EN2A01A116A215V-3D8GND14V+13Z105DG408DYLIN4LGND5RGND12RIN13LMO2RMO15AVCC1DVCC7LFO3RFO14DGND11XCS6DATA9CCLK10XMUTE8AGND16Z107VSDVC0V_SIGC186100N SM+5V+C15410U ELC155100N SMC156100N SM0V_SIG0V_SIG+5VSCLKSDATASLOAD0V_SIG0V_SIGR2002R2 SMR2012R2 SMR2

16、022R2 SM0V_SCLK0V_SLOAD0V_SDATAC15822P SMC15922P SM0V_SIG0V_SIGSEL11S214D12V+13S13S311V-4GND5VL12S46D310D47SEL39D215SEL48 SEL2 16Z106DG413DY+15V-15V0V_SIG+5VTONE*TONE*TONE*TONE*C152100N SM0V_SIGC153100N SMR18647R SMR18747R SMR18522R SM+C157100U ELR1102K2 SMR1112K2 SM+C110100U ELR11222K SM0V_SIGR1132

17、2K SM+C11110U CERAFINE+5V321Z111ATL072 SM567Z112BTL072 SM321Z112ATL072 SM567Z111BTL072 SM84Z109CTL072 SM84Z110CTL072 SM+C11710U CERAFINER12122K SMR11922K SMR12022K SM+C11610U CERAFINE0V_SIGD105BAV99W DUAL SM0V_SIGR11422K SMR11822K SM161817Z108DDS1844151914Z108ADS1844R1152K7 SMR1162K7 SM0V_SIGR1175K6

18、 SMR1352K2 SMR1362K2 SM+C131100U ELR13722K SM0V_SIGR13822K SM+C13210U CERAFINE+5V321Z113ATL072 SM567Z114BTL072 SM321Z114ATL072 SM567Z113BTL072 SM+C13810U CERAFINER14622K SMR14422K SMR14522K SM+C13710U CERAFINE0V_SIGD111BAV99W DUAL SM0V_SIGR13922K SMR14322K SM627Z108BDS1844534Z108CDS1844R1402K7 SMR14

19、12K7 SM0V_SIGR1425K6 SM84Z111CTL072 SM84Z112CTL072 SM+15V+15V-15V-15VC169100N SMC168100N SMC172100N SMC173100N SMC176100N SMC177100N SMC180100N SMC181100N SM0V_SIG0V_SIG0V_SIG0V_SIGC170100N SMC171100N SMC174100N SMC175100N SMC178100N SMC179100N SMC182100N SMC183100N SMC184100N SMC185100N SM0V_SIG0V_

20、SIG0V_SIG0V_SIG0V_SIGPS1R/W8DOUT11RST9DIN12CLK13VCC20GND10Z108EIC DS1844+5VSDATASCLKTONEIDC118100N SM+C12010U EL0V_SIGC11910N SMR1222R2 SM0V_TONEIDC11522P SMC13622P SM0V_SDATA0V_SCLKR1242R2 SMR1232R2 SMR15122K SMR14722K SMR15222K SMR14822K SMR15322K SMR14922K SMR15422K SMR15022K SMR15522K SMLISTEN 0

21、LISTEN 1LISTEN 2VCR 0VCR 1VCR 2TAPE 0TAPE 1TAPE 2TONE*0V_TONEIDTONEID0V_SDATASDATA0V_SLOADSLOAD0V_SCLKSCLK1234SK102AMPCT40V_SIG12345678SK103AMPCT8+15V0V_SIG-15VAUX RAUX LTO PHONO PCBTO POWER AMP I/PTO MICRO / DISPLAY PCB321Z115AOPA2134PA SM321Z116AOPA2134PA SM321Z117AOPA2134PA SM567Z117BOPA2134PA SM

22、84Z115COPA2134PA SM84Z117COPA2134PA SMRLY100ARLY DPDT 5V SMRLY100BRLY DPDT 5V SM+-RLY100CRLY DPDT 5V SMD120BAS16W SMQ100BC849BR2034K7 SMMUTE*0V_D+5VMUTE*0V_D+C18710U EL123456789101112131415161718192021222324252627282930SK101FFC30V SM0V_MODULEAUX LAUX RCD LCD RTUNER LTUNER RAV LAV RDVD LDVD RTAPE IN

23、LTAPE IN RVCR IN LVCR IN RMODULE LMODULE RTO PLUG IN MODULE PCB+5VR18810K SM0V_SIG0V_HFD121BAV99W DUAL SMD122BAV99W DUAL SM+15V-15VC113470N PEC134470N PEC150470N PEC151470N PE+C18810U EL+C18910U EL+15V-15V0V_SIG+C19010U EL+C19110U EL+15V-15V0V_SIGR20410K SMC112470N PEC192470N PEC133470N PEC193470N P

24、EC114CFKP2 63V 2N2C135CFKP2 63V 2N2CDL1CDLCDRCDR1TUNL1TUNR1TUNLTUNRAVL1AVR1AVLAVRDVDL1DVDR1DVDLDVDRTAPEIL1TAPEIR1TAPEILTAPEIRVCRIL1VCRIR1VCRILVCRIRAUXLAUXR+15V1-15V1AUXL1AUXR1LISTEN2LISTEN1LISTEN0LIST2LIST1LIST0VCR2VCR1VCR0VCR21VCR11VCR01TAPE2TAPE1TAPE0TAP2TAP1TAP0TAPEO1TAPE02VCRO1VCR02Z115_1AZ116_1

25、A/TONEZ107_4Z107_13Z107_1SK102_1SK102_3Z116_1BZ113_3Z111_3Z115_1BZ111_1Z111_7Z108_19Z112_3Z112_1Z112_7TONEIDSDATASCLKZ106_11Z114_7Z114_1Z114_3Z108_3Z113_7Z113_1AUXIL1AUXIR1Z106_14+15V2-15V2R182100R SM12345678910111213141516171819202122SK100FFC22V1MMC147100N PEC167100N PE01_1142JBR14/8/01First produc

26、tion release1.0R18110K SM01_E014JBR28/11/01Fuses uprated to 2A1.103_E291MJT07/10/03Transistors Q301(4B5248) & Q305(4B1964) obsolete.1.2Replace with 4B5171 & 4B1930. Replaced 470p caps 2D147W with 2DA147C101470P FKP2 100VC102470P FKP2 100VC103470P FKP2 100VC122470P FKP2 100VC123470P FKP2 100VC124470P

27、 FKP2 100VC140470P FKP2 100VC141470P FKP2 100VC142470P FKP2 100VC161470P FKP2 100VC162470P FKP2 100VC163470P FKP2 100VC165470P FKP2 100VC166470P FKP2 100VContact Tel: 01223 203200Contact Engineer: Mark TweedaleRadioFans.CN 收音机爱 好者资料库1234ABCD4321DCBAISSUEDRAWING NO.23425DRAWING TITLEDrawn by:DATEFile

28、nameECO No.DESCRIPTION OF CHANGEJ:Change_ControlECO_WIP03_E291 Transistor obsolete P7 A32 A90 C30 - MJTL937AY - A32 A90 preamp boardL937_1.2.ddb - DocumentsSchematicL937C3_1.2.SCHA & R Cambridge Ltd.Pembroke AvenueDenny Industrial CentreWaterbeachCambridge CB5 9PBIntegrated amplifier preamp - power

29、supplyCircuit DiagramL937C3JBR9-Oct-2003 INITIALSDate Printed33SheetofNotes:1234SK300MOLEXPWR4+C3001000u 35V+C3101000u 35VD302BAS16W SMD308BAS16W SMVinIADJAVoutOZ301LM317TD305BAS16W SMD304BAS16W SMR303470R SM+C30510U ELC304100N SMR3021K2 SMR307220R SM+15V-15V+5V0V_PSUSP300STAR POINT 40V_PSU0V_SIG0V_

30、HF0V_MODULE+C306470U EL 25VC307470N PEC308100N SMC309100N SM+C302220U EL+C312220U ELQ300J112Q303J112R300330R SMR304330R SM+C3033300u 25V+C3133300u 25VD31015V 350MW SMD31115V 350MW SMQ306BC846BQ307BC856B1234SK301IDC4S+15V-15V0V_PSU0V_MODULEAC1AC2UR+UR-D311-D310+15V3+5V+3.75V0V_SIG-15V3C3141N0 PPC3151

31、N0 PPD300S1DD301S1DD306S1DD307S1D01_1142JBR14/8/01First production release1.001_E014JBR28/11/01Fuses uprated to 2A1.1F300T2A SMF301T2A SM03_E291MJT07/10/03Transistors Q301(4B5248) & Q305(4B1964) obsolete.1.2Replace with 4B5171 & 4B1930. Replaced 470p caps 2D147W with 2DA147Q3052SA1930Q3012SC5171Contact Tel: 01223 203200Contact Engineer: Mark Tweedale