Sony-CDPEX100-cd-sch 电路图 维修手册.pdf

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1、 1 CDP-EX100 SERVICE MANUAL AEP Model UK Model E Model Model Name Using Similar MechanismCDP-EX10 CD Mechanism TypeCDM28-5BD19 Base Unit NameBU-5BD19 SPECIFICATIONS COMPACT DISC PLAYER MICROFILM This set is the CD player section in MHC-EX50/EX70AV/EX100AV. RadioFans.CN 收音机爱 好者资料库 6 Note : 1.Basicall

2、y designed to operate without adjustment. Therefore, check each item in order given. 2.Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3.Use an oscilloscope with more than 10M impedance. 4.Clean the objective lens by an applicator with neutral detergent when the signal level is low than

3、specified value with the following checks. 5.Adjust the focus bias adjustment when optical block is replaced. Focus Bias Adjustment SECTION 4 ELECTRICAL ADJUSTMENTS Procedure: 1.Connect oscilloscope to test point TP (RF). (GND terminal : VC) 2.Turn Power switch on. 3.Put disc (YEDS-18) in and playba

4、ck. 4.Adjust RV101 so that the waveform is clear. (Clear RF signal waveform means that the shape “ ” can be clearly distinguished at the center of the waveform.) 5.After adjustment, check the RF signal level. RF signal VOLT/DIV : 200 mV TIME/DIV : 500 nS S Curve Check Procedure: 1.Connect oscillosco

5、pe to test point TP(FEO). 2.Connect between test point TP(FOK)and GND by lead wire. 3.Turn Power switch on. 4.Put disc (YEDS-18) in and turnd Power switch on again and actuate the focus search. (In case of using SERVICE BOX actuate the focus search when disc table is moving in and out.) 5.Check the

6、oscillosope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 2.40.7 Vp-p. S-curve waveform 6.After check, remove the lead wire connected in step 2. Note : Try to measure several times to make sure than the ratio of A:B or B:A is more than 10:7. Take sweep time

7、 as long as possible and light up the brightness to obtain best waveform. RF Level Check Procedure: 1.Connect oscilloscope to test point TP (RF) on BD board. 2.Turn Power switch on. 3.Put disc (YEDS-18) in and playback. 4.Confirm that oscilloscope waveform is clear and check RF signal level is corre

8、ct or not. Note : Clear RF signal waveform means that the shape “ ” can be clearly distinguished at the center of the waveform. RF signal waveform BD board oscilloscope TP (FEO) TP (FOK) VOLT/DIV : 200mV TIME/DIV : 500nS level : 1.30.3 Vp-p BD board TP (RF) TP (VC) oscilloscope BD board TP (RF) VC o

9、scilloscope (DC range) level 1.30.3 Vp-p symmetry within 2.40.7 Vp-p A B RadioFans.CN 收音机爱 好者资料库 7 E-F Balance Check Procedure: 1.Connect oscilloscpe to test point TP (TEO). 2.Turn Power switch on. 3.Connect pin of IC60I on the PANEL board to GND with a lead wire. 4.Put disc (YEDS-18) in and playbac

10、k. 5.Push TIME button. 6.Confirm that the oscilloscope waveform is symmetrical on the top and bottom in relation to 0Vdc, and check this level. Traverse waveform 7.Remove the lead wire connected in step 3. Focus/Tracking Gain Adjustment (RV102, 103) This gain has a margin, so even if it is slightly

11、off. There is no problem. Therefore, do not perform this adjustment. Please note that it should be fixed to mechanical center position when you moved and do not know original position. BD board oscilloscope TP (TEO) TP (VC) PANEL BOARD (Conductor Side) 0V level : 300100 mVp-p symmetry IC601 4025 64

12、4124 6580 1 Adjustment Location : BD BOARD (Conductor Side) IC101 RF TEI FEI RV102 RV103 IC104 IC102 FEO TEO FOK VC GND PCK RV101 RadioFans.CN 收音机爱 好者资料库 8 5-1. IC PIN FUNCTION IC601 PD78044AGF (SYSTEM CONTROL, FL DRIVER) Pin No.Pin NameI/OFunction 1-7T6-T0OFL display grid output 8VDD+5V power suppl

13、y 9CLKOSerial clock output to DSP (CXD2507AQ). 10DATAOSerial data output to DSP (CXD2507AQ). 11Fixed at Ground. 12XLATOSerial data latch pulse output to DSP (CXD2507AQ). 13PRGLOSerial data latch pulse output to D/F DAC (PCM1710U). 14SQCLKOSub code Q data read clock output to DSP (CXD2507AQ). 15Not u

14、sed. (Open) 16SUBQISub code Q data input from DSP (CXD2507AQ). 17RESETISystem reset input (“ L ”= Active) 18INSWIS292 (load in switch) input 19OUTSWIS291 (load out switch) input 20AVSSGround 21LDOUTOOutput for rotating M903 (loading motor) in the loading out direction. 22LDINOOutput for rotating M90

15、3 (loading motor) in the loading in direction. 23ADJITest mode input. (“ L ”= Stops GFS check) 24AFADJITest mode input. Fixed at “H”. (“ L ”= Test mode) 25MODEINot used. (Fixed at “ H ”.) 26-28KEY2-KEY0IKey AD input 29AVDD+5V power supply 30AVREF+5V power supply 31Fixed at Ground. 32Not used. (Open)

16、 33VSSGround 34X1IClock input (5MHz) 35X2OClock output (5MHz) 36BDRSTOBD reset output 37BDPOWEROBD power ON/OFF output 38Not used. (Open) 39SENSISENS input from DSP (CXD2507AQ). 40AMUTEONot used. (Open) 41FSWOFocus switch output 42BSOUTOAudio bus output 43Not used. (Open) 44SCORISub code sync S0+S1

17、detection input 45JOG1IJOG input 46Not used. (Open) 47BSINIAudio bus input 48IC (VPP)Connected to Ground. 49JOG0IJOG input 50, 51Not used. (Open) 52VDD+5V power supply 53-70S22-S5OFL display segment output 71VLOAD-28V power supply for driving FL display. 72-76S4-S0OFL display segment output 77-80T10-T7OFL display grid output SECTION 5 DIAGRAMS