User manual SONY CDP-195 service manual

[. . . ] 3-6. SERVICE NOTE 4 GENERAL 7 DISASSEMBLY Front Panel 9 Disc Table Assembly and Disc Table and Press Pulley 9 Main Board 10 CDM Assembly 10 Optical Pick-up Block Assembly 11 Bracket (Gear) Assembly 11 4. 6-13. TEST MODE 12 ELECTRICAL BLOCK CHECKING 15 DIAGRAMS Circuit Boards Location 17 Block Diagram 19 Schematic Diagram BD Section 21 Printed Wiring Board BD Section 23 Printed Wiring Board Main Section 25 Schematic Diagram Main Section (1/2) 27 Schematic Diagram Main Section (2/2) 29 Schematic Diagram HP Section 31 Printed Wiring Board HP Section 32 Schematic Diagram Display Section 33 Printed Wiring Board Display Section 35 IC Block Diagrams 37 IC Pin Functions 40 7. 7-1. 7-4. EXPLODED VIEWS Front Panel and Case Section 44 Back Panel and Disc Table Section 45 Chassis Section 46 Base Unit Section (BU-5BD22) 47 8. ELECTRICAL PARTS LIST 48 --2-- SAFETY CHECK-OUT Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. CAUTION (US model only) After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, "metallized" knobs, screws, and all other exposed metal parts for AC leakage. [. . . ] And confirm peak to peak level within 4. 5 1 Vp-p. S-curve waveform symmetry A Within 4. 5 1 Vp-p B Procedure : 1. Check the level B of the oscilliscope's waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following : A/B x 100 = less than 22% Center of the waveform B 7. After check, remove the lead wire connected in step 2 and 3. 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 as long as possible and light up the brightness to obtain best waveform. 0V + 0. 7 0. 6 Vp-p A (DC voltage) level : 1. 3 symmetry 1 track jump waveform RF Level Check oscilloscope BD board TP (RF) TP (VC) TP (TE) TP (VC) BD board oscilloscope E-F Balance Check (With general remote commander) Procedure : 1. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not. Connect the test point TP2 (ADJ) on MAIN board to the ground with a lead wire. Turn the Power switch on to set the ADJ mode, automaticaly play the number five track. (The tracking servo and the sledding servo are turned OFF. ) -- 15 -- 6. Check the level B of the oscilliscope's waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following : A/B x 100 = less than 22% Traverse waveform Center of the waveform B 0V A (DC voltage) level : 1. 3 + 0. 7 0. 6 mVp-p 7. Press the 8 button. (The tracking servo and sledding servo are turned ON. ) Confirm the C (DC voltage) is almost equal to the A (DC voltage) is step 6. Traverse waveform 0V C (DC voltage) Tracking servo Sledding servo OFF Tracking servo Sledding servo ON 8. Disconnect the lead wire of TP2 (ADJ) connected in step 2. Adjustment Location : [BD BOARD] SIDE A [MAIN BOARD] CONDUCTOR SIDE TP(FE1) TP(TE) TP(RF) TP(VC) IC101 TP(FE2) IC501 R544 TP2 (ADJ) TP1 (AFADJ) TP(IOP) CN102 -- 16 -- SECTION 6 DIAGRAMS 6-1. SCHEMATIC DIAGRAM MAIN SECTION (2/2) See page 37 for IC Block Diagrams. See page 25 for Printed Wiring Board. (Page 28) L515 (Page 31) C383 0. 1uF -- 29 -- -- 30 -- CDP-195 6-8. PRINTED WIRING BOARD HP SECTION See page 17 for Circuit Boards Location. 1 A 2 3 4 5 6 7 HP BOARD TABLE MOTOR BOARD (Page 30) B M M802 LOADING MOTOR W701 1-650-082- 11 (11) C (Page 26) SENSOR BOARD 1 2 CN801 D 3 4 2 1 D802 D801 1 4 R801 5 3 R802 2 (Page 28) E (Page 28) 6 5 2 1 CN802 1-647-362- 12 (21) LOADING MOTOR BOARD F S801 ROTARY ENCODER 1 B (Page 26) MAIN BOARD CN504 M G 16 1-647-363- 6 D (Page 26) MAIN BOARD NO503 11 (11) -- 31 -- -- 32 -- CDP-195 6-10. SCHEMATIC DIAGRAM DISPLAY SECTION See page 42 for IC Pin Functions. 28 -- 33 -- -- 34 -- CDP-195 6-11. PRINTED WIRING BOARD DISPLAY SECTION See page 17 for Circuit Boards Location. 1 A 2 3 4 5 6 7 8 9 10 11 12 13 14 B C (Page 26) D (Page 26) E F Semiconductor Location Ref. D801 D802 IC801 IC802 Q801 Q802 Q803 Q804 Location C-3 D-3 B-13 B-9 C-3 C-3 B-7 B-10 -- 35 -- -- 36 -- 6-12. IC BLOCK DIAGRAMS IC301 CXD8505BQ (MAIN BOARD (2/2)) IC103 CXA2568M (BD BOARD) VCC VCC VEE HOLD 1 AGCVTH 2 SYSM 33 ATT SHIFT LATCH XINT 34 35 36 37 "O" DETECT MUTE CIRCUIT IC551 BA6780 (MAIN BOARD (1/2)) 24 VCC 23 LC/PD 22 LD_ON VIN1 1 18 VIN2 SPLM DFVDD1 DVDDR VSUB(D)R VSUB(C)R VDD2 VDD R1(-) VSS R1(+) VSS2 APC PD AMP 201x16 XSEL VREF APC LD AMP 21 HOLD_SW 20 AGCCONT (50%/30% OFF) 19 RF_BOT VC REVERSIBLE DRIVER FWD/REV CONTROLLER COVERNER DRIVER FWD/REV CONTROLLER 32 31 30 29 28 27 26 25 24 23 22 21 20 VEE FIN1 2 LD 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 VSS2 R2(+) VSS R2(-) VDD VDD2 VSUB(A)R XVSS XVSS X IN X OUT XVDD VSUB(A)L VDD2 VDD L2(-) VSS L2(+) VSS2 VCC 17 FIN2 3 VC VCC PD 4 RIN1 3 16 RIN2 MODE PLM A B C D VEE 5 6 7 8 9 VEE VC VC VC VEE RF SUMMING AMP VC IOUT VEE VEE 4 15 CT2 ATT FIR1 IIR FIR2 FIR3 L. (x 8) PLM 14 FE COVERNER OUTPUT 512FS0 256FS0 128FS0 I NV1 I NV01 I NV02 MUTE R 45 46 47 48 49 50 51 TIMING CIRCUIT COVERNER LOAD CURRENT DETECTION AMPLIFIER 3RD ORDER NOISE SHAPER ERROR AMP FOCUS VREG 6 LOW VOLTAGE OUTPUT XDCK XLRCK DATA1 VSUD(D)R DF VSS VSUB(D)L INAF 38 39 40 41 42 43 44 S/P ATT FIR1 FIR2 IIR FIR3 AC, DC DITHER CLOCK GENERATOR RF_EQ_AMP VC 18 RFTC 17 RF_1 16 RFO 15 RFE VREF 5 REFERENCE VOLTAGE OUTPUT L. (x 8) 3RD ORDER NOISE SHAPER 14 VEE 13 FBIN- F 10 E 11 VCC 7 12 FBIN+ OUT1+ 52 53 54 55 56 57 58 59 60 MUTE L TEST 1 TEST 2 DFVDD2 DV DDL VSUB(D)L VSUB(C)L VDD2 VDD 61 62 63 64 L1(-) VSS L1(+) VSS2 8 9 11 OUT2+ 10 OUT2- + VC VC BUFFER VC 12 VC VCC VEE VC VC TRACKING ERROR AMP 13 TE - OUT1- IC302 CXA8055M (MAIN BOARD (2/2)) IC601 LA5616 (MAIN BOARD (1/2)) CIREF 1 NC 2 AGND 3 NC 4 IOR 5 IOR+ 6 C5 7 C6 8 C7R 9 AVEES 10 AVEES 11 C4R 12 C3 13 DVEE 14 C1R 15 DGND 16 1N1R 17 1N1+R 18 NC 19 1N2+R 20 1N2R 21 ECL SWITCHING CIRCUIT ANALOG VOLUME CONTROL CIRCUIT REFERENCE VOLTAGE CIRCUIT 42 RIREF 41 VREF 40 VCNT 39 AGND 38 AVCC 37 NC VIN1 1 ON/OFF CURRENT LIMITER ON/OFF VO1 CN EN1 GND RES CD EN2 VO2 2 3 4 5 6 7 8 9 OVERHEAT PROTECT VREF CONSTANT CONTROL CIRCUIT CONSTANT CONTROL CIRCUIT 36 IOL 35 IOL+ 34 C7L 33 AVEES RESET GENERATOR LOGIC 32 AVEES 31 C4L 30 DVEE 29 DVCC 28 C1L ECL SWITCHING CIRCUIT 27 DGND 26 1N1L 25 1N1+L 24 NC 23 1N2+L 22 1N2L ERROR AMP ERROR AMP VIN2 10 -- 37 -- -- 38 -- IC802 LC75721E (DISPLAY BOARD) DI 64 CONTROL CG RAM CE 62 VDD 60 VSS 58 VFL 55 RES 61 TEST 56 OSC2 59 OSC DRIVER LATCH CL 63 SHIFT REGISTER DC RAM ANODE DRIVER LATCH CG ROM 1 P1 2 P2 35 P35 36 P36 37 P37 38 P38 ADDRESS RESISTOR BLINKCYCLE RESISTOR DISPLAY RESISTOR DUTYCYCLE RESISTOR GLID RESITOR INSTRUCTION RESISTOR TIMING GENERATOR ADDRESS COUNTER BLINK GENERATOR DISPLAY CONTROL DUTY GENERATOR GLID CONTROL AD RAM 39 P39 40 P40 41 41 42 N. C. 43 N. C. GRID DRIVER CONTROL DECODER 44 G11 45 G10 53 G2 54 G1 OSC1 58 -- 39 -- 6-13. IC PIN FUNCTIONS IC101 DIGITAL SIGNAL PROCESSOR (CXD2585Q) (BD BOARD) Pin No. [. . . ] 4-917-564-01 A-4724-002-A 3-713-786-51 X-4917-523-4 X-4917-504-1 Description GEAR (P), FLATNESS BD (A) BOARD, COMPLETE SCREW +P 23 MOTOR ASSY(SPINDLE) MOTOR ASSY(SLED) Remarks -- 47 -- The components identified by mark !Replace only with part number specified. Les composants identifis par une marque !Ne les remplacer que par une pice portant le numro spcifi. 10 KEY NOTE: BD SECTION 8 ELECTRICAL PARTS LIST Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. -XX, -X mean standardized parts, so they may have some difference from the original one. [. . . ]