Classe-SSP75-sur-sm维修电路原理图.pdf
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1、SSP-75ClassPREAMPLIFIER / PROCESSORSERVICE MANUALv 1.0RadioFans.CN 收音机爱 好者资料库IndexMechanical Assembly3PC Boards12Testing Procedures18Diagrams21RadioFans.CN 收音机爱 好者资料库SSP-75MECHANICALASSEMBLY1 MS-2347 PHILIPS2 L273XR013 L274XR03SSP-75FACE PLATE ASSEMBLY)Class - 4DIGITALDIGITALSTANDBYSTANDBYMODEMODEME
2、MORYMEMORYDIGITALDIGITALI/P SOURCEI/P SOURCEDTSDTSDOLBY DIGITALDOLBY DIGITALDOLBY PRO-LOGICDOLBY PRO-LOGICCLIPCLIPMUTEMUTE321FACE PLATE ASSEMBLY)1 N-4K2 SDB161PVB20F3 Flat Washer4 Nut5 L273XR016 6-32 x 1/4 SHSS7 L214XR01-SClass - 5SSP-751342567TOP VIEWCHASSIS REAR VIEW1 D501-J12-S2-15-DQ 2 Jack3 4-4
3、0 x 3/8 BHCS4 Balanced5 4-40 x 3/8 BHCS6 N-1K 7 656-0428 EAC-3339 6-32 x 3/8 BHCSClass - 6SSP-752319 8 6 745CHASSIS REAR VIEW1 Jack 2 4-40 x 3/8 BHCS3 Jack4 Standoff5 Jack 6 4-40 x 3/8 BHCS7 Jack8 4-40 x 3/8 BHCSClass - 7SSP-7556781234CHASSIS REAR VIEW1 Jack 2 4-40 x 3/8 BHCS3 NC3MAH24 4-40 x 3/8 BH
4、CS5 4-40 x 3/8 BHCS6 Toslink ConnectorClass - 8SSP-75341265CHASSIS1 PLA CAPFR12 HDW #8 FLAT WASHER3 BZO 8-32x3/4” BHCS4 L271XR03Class - 9123SSP-754TOP VIEWClass - 10PARTIAL ASSY1 AVR BO51XR022 AVR BO50XR033 AVR BO1CXR004 TRANSFORMERSSP-75TOP VIEWSHIPPING AREA - FINAL ASSY1 L272XR012 MPF-0605-100-BO
5、Class - 11SSP-75MODEL CP-35DIGITALDIGITALSTANDBYSTANDBYMODEMODEMEMORYMEMORYDIGITALDIGITALI/P SOURCEI/P SOURCEDTSDTSDOLBY DIGITALDOLBY DIGITALDOLBY PRO-LOGICDOLBY PRO-LOGICCLIPCLIPDIGITALDIGITALSTANDBYSTANDBYMODEMODEMEMORYMEMORYDIGITALDIGITALI/P SOURCEI/P SOURCEDTSDTSDOLBY DIGITALDOLBY DIGITALDOLBY P
6、RO-LOGICDOLBY PRO-LOGICCLIPCLIPMUTEMUTE21SSP-75PC BOARDSB27BXR02 ADD ONClass - 13SSP-75B272XR03 TOP PCBClass - 14SSP-75Class - 15B275XR01 POWER SUPPLYSSP-75Class - 16B276XR02 FRONT PCBSSP-75Class - 17B27AXR00 IRSSP-75SSP-75TESTINGPROCEDURESClass - 19SSP-75ST ART - UP1-check all wires and components2
7、-Check screws and bolts3-Connect the jumpers for 120 Volts4-Turn the bias all the way to 0 volts5-Connect the unit in bypass mode6-Connect the unit with variable transformer7-Connect speaker cables, regular and balanced inputs8-Apply 10V AC from variable transformer and check the rail and driver vol
8、tages9-If the unit is OK increase the voltage up to 120V10-Turn off the unit and remove by pass11-Turn on the unit and check the rails driver and offset12-Check the sequence of relay clicking13-Adjust the bias and offset14-Check the protection circuit both channels15-Check the signal with 8 and 4 lo
9、ad in16-Regular, regular mono, balanced stereo and balanced mono17-Check noise with small speaker and RCA shorted plug18-Put in burning benchSSP-75FINAL TESTClass - 201. Before final test unit was 4 days on burn-in-bench with music.2. Take the unit from burn-in-bench to Q.C and play it immediately.
10、Keep the line 120V A.C.3. Check physically and check the components.-check all capacitor and devices direction. Capacitor stand up right way i.e. check co-solder.-check any missing parts.-check all fuse sockets.-check main board tight up with screw and washer.-check any screw missing.-check balance
11、lock working smoothly.-check all output transistors position with pad.-check main transistors position with pad.-check main transformer tight very well.4. Adjust bias 26mV for every output devices for both channels. Wait 7 to 8 minutes after each adjustment. Also adjust offset to 0mV.5. Measure rail
12、 and pre-driver voltage.6. Measure A.C voltage for bridge.7. Measure supply voltage for relays. +15V and 15V for both channels. +12V and 12V.8. Measure reference voltage 8.1V on both channels.9. Measure reference voltage for protection 78V.10. After setting the bias, connect load and input signal. C
13、heck output signal. Check phase with input signal.11. Measure frequency response, slew rate, gain, signal to noise ratio.12. Check the output signal from 20Hz to 20KH with load in following combination. Also measure the output power.Regegur-stereoBalance-stereoRegegur-monoBalance-mono13. Check phone
14、-jack.14. Check protection on both channels.15. Check noise with speaker.16. Put the jumpers and varistor for required A.C voltage.17. Plug unit again and check rail and pre-driver voltage.SSP-75DIAGRAMSPOWER SUPPLYClass - 22SSP-75+5D123456X50.156 6Pin PCB header with friction lock123456X40.156 6Pin
15、 PCB header with friction lock+12V+-RECT2SB601C2210000uFC2310000uFC24100nFC25100nFC1910000uFC1810000uFC20100nFC21100nF+-RECT4SB601C8100nFC9100nFC17100nFC16100nF+-RECT3SB601C14100nFC6100nFC7100nFC15100nFR410kR510kR310kR210kC341000uFC29100nFR710kC351000uFC28100nFR610kVin1GND2Vout3IC27812CVVin1GND2Vout
16、3IC17805CVL1DSS706-351D221M25-50L2DSS706-351D221M25-50C32100nFC2710000uFC4100nFC5100nFC13100nFC12100nF+-RECT1SB601C30100nFC2610000uFC10100nFC2100nFC3100nFC11100nFC31100nFC33100nF12345678910X30.156 10pin PCB header123456X25mm pitch PCB terminal blockFUSE41A SLOWFUSE5500mA SLOWFUSE2500mA SLOWFUSE71A S
17、LOWFUSE62A SLOWFUSE1500mA SLOW1234SUPP1PLH11C1811R2P01B1R1100C1100nFFUSE31A SLOWHS2Thermalloy 6392BHS1Thermalloy 6392BMH1MH2MH4MH3MH6MH5ShieldShield123X1Bulgin PX0580PCAUDIO BOARDClass - 23SSP-755.1 Ch input51switch.schControl interfacecontroli.schRecording outputsrecbuf.schAV Audio input buffersinb
18、uf2.schAudio input buffersinbuf1.schZone2 volume and bufferzone2.schAnalog input buffersanasel.schAudio1Audio2Audio3Audio4Audio5Audio6Video1Video2Video3Video4Video5Video6MicDSP and Bypassdsp.schAnalogaudio inDigitalaudio in5.1 ch.audio outDSP MODULEZone 1Zone 2SerialControlSerialControlMain output b
19、uffers and mutingmainout.schRec out1Video 6 OutRec out2Zone 2 OutLeftRightLeft surroundRight surroundCenterSub 1Sub 2VolumeControlFrom ControlboardFixed outPower suppliespower.sch+-15V+-5V+5 DigitalDigital groundAnalog ground+15A-15A+5A-5ARightLeftRightLeftCenterSubSurroundSurround5.1 CHANNELClass -
20、 24SSP-75C51100uFC24100uFC50100uFC68100uFC25100uFC69100uF13119468116RE5TTi TRS-05D-SB-LD6BAS16C165100nFEXT51_SEL32Q13BC848BR1421kC103100nFDSP_LEFTDSP_RIGHT13119468116RE6TTi TRS-05D-SB-LD7BAS16C166100nF32Q14BC848BR1431kC104100nFDSP_SRND_LEFTDSP_SRND_RIGHT13119468116RE7TTi TRS-05D-SB-LD8BAS16C167100nF
21、32Q15BC848BR1441kC102100nFDSP_CENTERDSP_SUBWOOFERLEFT_SWITCHEDRIGHT_SWITCHEDSRND_LEFT_SWITCHEDSRND_RIGHT_SWITCHEDCENTER_SWITCHEDSUBWOOFER_SWITCHED356241X4HSP-214VREC_OUT_LREC_OUT_RC510nFC610nFSHIELDSHIELD356241X5HSP-214VC910nFC1010nFSHIELDSHIELDFront InSurround InCenter InSub InRec out34567891011121
22、41312151618171920212325222426272829303132X13DIN41612 1/2 Q Body PCB plugEXT51_VOLEXT51_GPIO1EXT51_GPIO2EXT51_MUTE+5D+5A-5A+15A-15ADSP_SCLKDSP_MOSIExternal 5.1 ch volumeboard connectorEXT51_SELEXT51_SELRELAY_POWERRELAY_POWERRELAY_POWERCONTROL INTERFACEClass - 25SSP-75MUTE_MAINDSP_MUTEDSP_RESETSEL_DSP
23、DSP_SCLKDSP_MISODSP_MOSIZONE_1_SW_1ZONE_2_SW_1AUDIO_SCLKAUDIO_MOSIZONE_2_VOLZONE_2_VOL_MUTEMUTE_REC_CONTROLMUTE_V6OUT_CONTROLMUTE_ZONE21G11A121Y1181A241Y2161A361Y3141A481Y412VCC20GND102A1172Y132A2152Y252A3132Y372A4112Y492G19IC3074HC244+5D34567891011121413121516181719202123252224262728293031323334X18
24、34pin IDC headerSERIN14SRCLK11SRCLR10RCLK12G13Q015Q11Q22Q33Q44Q55Q66Q77SEROUT9VCC16GND8IC3574HC595SERIN14SRCLK11SRCLR10RCLK12G13Q015Q11Q22Q33Q44Q55Q66Q77SEROUT9VCC16GND8IC3474HC595+5DAUDIO_I/O_RCKDSP_SPI_EAUDIO_SPI_ECONTROL_MISOCONTROL_MOSICONTROL_SCLKCONTROL_MOSICONTROL_SCLKI/O_ENABLEI/O_ENABLECONT
25、ROL_SCLKAUDIO_I/O_RCK+5D+5D+5DZONE_1_SW_2ZONE_2_SW_2SERIN14SRCLK11SRCLR10RCLK12G13Q015Q11Q22Q33Q44Q55Q66Q77SEROUT9VCC16GND8IC3374HC595I/O_ENABLECONTROL_SCLKAUDIO_I/O_RCK+5D+5DCONTROL_MOSICONTROL_SCLKCONTROL_MISOAUDIO_I/O_RCKDSP_SPI_EAUDIO_SPI_EI/O_ENABLESPDIF_IN-15A+15A+5A-5ATUNER_SPI_E+5DC2391000uF
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