User manual SONY 777ES - service manual

SCD-1/777ES SERVICE MANUAL For Technical service TABLE OF CONTENTS 3. 4. 5. 6. 7. SERVICING NOTES ............................................... 3 DISASSEMBLY-2 ..................................................... 5 TEST MODE .............................................................. 10 ELECTRICAL ADJUSTMENTS ......................... 12 DIAGRAMS 17 18 19 20 21 22 23 24 7-9. 7-10. 7-11. 7-12. 7-13. 7-14. 7-15. 7-16. 7-17. 7-18. 7-19. 7-20. 7-21. 7-22. 7-23. 7-24. Schematic Diagram ­ MAIN Board (2/7) ­ .................. Schematic Diagram ­ MAIN Board (3/7) ­ .................. Schematic Diagram ­ MAIN Board (4/7) ­ .................. Schematic Diagram ­ MAIN Board (5/7) ­ .................. Schematic Diagram ­ MAIN Board (6/7) ­ .................. Schematic Diagram ­ MAIN Board (7/7) ­ .................. Printed Wiring Board ­ AUDIO Board ­ ...................... Schematic Diagram ­ AUDIO Board (1/2) ­ ................ Schematic Diagram ­ AUDIO Board (2/2) ­ ................ Printed Wiring Boards ­ BAL(SCD-1)/COAX/ OPT/PIN/SW Boards ­ ................................................... Schematic Diagram ­ BAL(SCD-1)/COAX/ OPT/PIN/SW Boards ­ ................................................... Printed Wiring Boards ­ DISPLAY/SW-L/ SW-R Boards ­ ................................................................ Schematic Diagram ­ DISPLAY/SW-L/ SW-R Boards ­ ................................................................ Printed Wiring Boards ­ AC/POWER Boards ­ ........... Schematic Diagram ­ AC/POWER Boards ­ ................ IC Pin Function Description ........................................... 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 43 US Model Canadian Model AEP Model 7-1. Notes for Printed Wiring Board and Schematic Diagram ......................................................... 7-2. Printed Wiring Boards ­ RF/SLD-FG/SLD-MOT Boards ­ ........................................................................... 7-3. Schematic Diagram ­ RF/SLD-FG/SLD-MOT Boards ­ ........................................................................... 7-4. Printed Wiring Boards ­ LOAD-CN/LOAD-MOT/ LOAD-SW/STB Boards ­ .............................................. 7-5. Schematic Diagram ­ LOAD-CN/LOAD-MOT/ LOAD-SW/STB Boards ­ .............................................. 7-6. Printed Wiring Board ­ MAIN Board (component side) ­ .......................................................... 7-7. Printed Wiring Board ­ MAIN Board (conductor side) ­ ........................................................... 7-8. Schematic Diagram ­ MAIN Board (1/7) ­ .................. 8. 9. EXPLODED VIEWS ................................................ 50 ELECTRICAL PARTS LIST ............................... 59 CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. SAFETY CHECK-OUT After correcting the original service problem, perform the following safety check 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. Check leakage as described below. LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes.). Leakage current can be measured by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers' instructions to use these instruments. 2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The "limit" indication is 0.75 V, so analog meters must have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A) To Exposed Metal Parts on Set The following caution label is located inside of the unit. For the customers in Canada CAUTION TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS POLARIZED AC PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE. For the customers in Europe This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. 0.15 µF 1.5 k AC voltmeter (0.75 V) Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. The following caution label is located inside the unit. Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270 °C during repairing. · Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). · Be careful not to apply force on the conductor when soldering or unsoldering. SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. 2 SECTION 3 SERVICING NOTES NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. MODEL IDENTIFICATION CHECKING METHOD OF MICROCOMPUTER ROM VERSION 1. Set the CD1/CD2 switch on the remote commander to CD1. 2. With the power turned on, press the [CHECK] button on the remote commander while pressing the [TEXT] button on the set. 3. 15-digit numeric value will be displayed, and the top 4 digits (left side) of the numeric value imply the microcomputer ROM version. Example: If "200006100FFFF3C" is displayed, the ROM version is 2.000. 4. To cancel the ROM version check mode, press the [CHECK] button on the remote commander while pressing the [TEXT] button on the set. DISPLAY OF TOC ERROR Display TOC ERROR * Contents Not SACD (DVD disc etc.) TOC ERROR **** Illegal SACD disc (pirate edition) ­ Back Panel ­ Part No. Model SCD-1: US, Canadian SCD-1: AEP SCD-777ES: AEP SCD-777ES: US, Canadian Part No. 4-215-784-1s 4-215-784-2s 4-221-854-0s 4-221-854-1s SERVICE POSITION In checking the BU section, prepare two new jigs (extension cable J-2501-164-A: 1.00 mm 26 cores). OP mechanism section (BU-23) insulator Any board to put connect two jigs (extension cable J-2501-164-A) to the RF board (CN001, 002) and Main board (CN501, 502). 3 REPLACING OPTICAL PICK-UP Handling 1) A red laser diode for Super Audio CD Player requires more attention to static electricity than general infrared laser diodes for CD. Because its durability to static electricity is far weaker than that of infrared laser diodes, always use an earth band when handling the optical pick-up block as service parts. 2) As for the flexible board KHS-180A (RP) packed as service parts, the short lands have been soldered to protect from static electricity. Accordingly, remove solders when replacing optical pick-up. (See Fig. 1) DVD short land 3) In handling the KHS-180A (RP), do not touch inhibited parts shown in Fig. 2, but grip the slide base bearing and U-shaped guide. Slide base bearing Skew sensor Lens actuator covers Objective lenses Laser holder OEIC U-shaped guide CD short land Touch inhibited parts · Objective lens · Skew sensor · Laser holder · Laser coupler · Flexible board · OEIC · Lens actuator covers Flexible board Connector Fig. 1 Flexible board Laser coupler Fig. 2 KHS-180A (RP) 4 SECTION 4 DISASSEMBLY-2 Note: Follow the disassembly procedure in the numerical order given. OP MECHANISM SECTION (BU-23) 3 two screws (B2.6 × 5) 4 two washers 4 two washers 3 two screws (B2.6 × 5) 5 Lift up OP mechanism section (BU-23). 1 screw (PS3 × 5) 6 two wires (flat type) (26 core) (CN501, 502) 2 lag OPTICAL PICK-UP (KHS-180A/J1N) (Page 7) RF BOARD (Page 7) MAIN BOARD 2 five screws (PS 3 × 5) 1 two connectors (CN701, 708) 3 MAIN board 1 five connectors (CN702-706) 5 FRONT PANEL SECTION (SCD-1) 3 push (control block) (wire) switch 4 six screws (RK4 × 8) 2 two claws 2 two claws 5 side plate (L) 1 two connectors (CN452, 702) 7 two screws (BVTT4 × 6) 8 front panel section 5 side plate (R) 6 five screws (BVTP3 × 10) 4 six screws (RK4 × 8) FRONT PANEL SECTION (SCD-777ES) 3 push (control block) (wire) switch 2 two claws 4 six screws (RK4 × 8) 2 two claws 5 side plate (R) 7 screw (BVTT3 × 6) 1 two connectors (CN452, 702) 8 front panel section 4 six screws (RK4 × 8) 6 four screws (BVTP3 × 10) 7 screw (BVTT3 × 6) 5 side plate (L) 6 OPTICAL PICK-UP (KHS-180A/J1N) 6 two screws (B3 × 5) 2 screw (PSW3 × 10) 7 retainer (OP) ass'y 3 holder (R2) 8 leaf spring (Y) 4 holder (R) 5 bracket (OP) ass'y 9 optical pick-up (KHS-180A/J1N) 1 OP-15 flexible print board (CN003) RF BOARD 1 OP-15 flexible print board (CN003) 1 wire (flat type) (14 core) (CN007) 2 two connectors (CN004, 006) 5 RF board 4 four spacers (3 × 5) 2 connector (CN005) 3 four screws (B3 × 10) 7 SLED MOTOR ASS'Y SECTION 1 five screws (B3 × 5) 3 three poly-slider washers 2 cover (BU) 4 gear (D) 5 gear (C) 6 gear (B) 8 SLD-MOT board 0 sled motor ass'y section 9 three screws (B3 × 5) 7 screw (B3 × 5) TILT MOTOR ASS'Y (M3) 2 bracket (tilt) ass'y 4 tilt motor ass'y (M3) 3 two precision screws (P2 × 2.5) 1 two screws (B3 × 5) 8 SPINDLE MOTOR BLOCK 3 two shaft retainers (sub) 2 screw (B3 × 5) 2 screw (B3 × 5) 5 spindle motor block 6 sled shaft (sub) 4 two shaft retainers (main) 2 two screws (B3 × 5) 1 slide the spindle motor block toward the arrow. 7 sled shaft (main) APPLYING OIL AT REPLACEMENT OF MOTOR (SPINDLE) (M7) When replacing the motor (spindle) (M7), apply a drop of oil to the sled shaft (sub) and the sled shaft (main) respectively. Part Name FLOIL (946P) Part No 7-662-001-37 Notes: · Do not attach oil to other than specified parts. · Do not touch the lens and laser diode during work. sled shaft (main) sled shaft (sub) 9 SECTION 5 TEST MODE 5-1. FLUORESCENT INDICATOR TUBE MODE Note: Set the CD1/CD2 switch on the remote commander to CD1. Geid Assignment 16G 19G 20G Procedure: 1. Press the ! button while shorting the BP (TEST MODE) on the DISPLAY board with tweezers, etc. and turn on the power, so that the following operation will be executed automatically. (1) All segments from 1G to 19G light up in order, starting from 1G. (2) Vertical one line (total 7) of all grids from 1G to 15G lights up in order, starting from the left. (3) Horizontal one line (total 5) of all grids from 1G to 15G lights up in order, starting from the top. (4) Grids from 1G to 15G go off, and all segments from 16G to 19G light up. 2. With the set in the 1-(4) status, pressing any key on the remote commander changes the display as shown below, and activates the key check standby mode. 17G 18G 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G 11G 12G 13G 14G 15G ­ DISPLAY Board (Conductor Side) ­ BP (TEST MODE) CN1002 CN1001 STEP INDEX MIN ARTIST CD1 CD2 CD3 3. When a key on the front panel is pressed, the corresponding segment and LED light up. (See table below) key on set A TIME TEXT DIGITAL OUT FILTER SACD/CD H X x l L Key Attribute EJECT TIME TEXT DIGITAL OUT FILTER SACD/CD PLAY PAUSE STOP AMS-BACK AMS-FORWARD Lighting segment (in 19 grids) 20 bit 24 bit __|_____ (DIGITAL FILTER) DIGITAL OUTPUT __|_____ (DIGITAL OUTPUT) NORM WIDE STD1234 DIGITAL FILTER 16 bit OFF Lightning LED ­ ­ ­ ­ ­ ­ PLAY LED PAUSE LED ­ CD LED SACD LED 4. If "!%%TEST-END!!%%" is displayed after the keys listed above were all pressed, the key check terminated successfully. Note: As this test does not check the LEDs, check them visually. 5. Press the ! button to turn the power off, and disconnect the plug from the socket. 10 5-2. ADJUSTMENT-1 MODE This mode is a special mode used to perform overall adjustment, optical pick-up height adjustment, and service check. Note: 1. Wrong setting method can cause a trouble. 2. Never operate the set with the loading panel mounted, which otherwise causes a trouble. Adjustment-1 Mode List Note: Set the CD1/CD2 switch on the remote commander to CD1. Codes 01 02 03 04 05 06 07 22 23 24 30 Contents LD ON/OFF Spindle ON/OFF Forcus Search Forcus Servo ON/OFF Track Servo ON/OFF CLV ON Sled Servo ON/OFF Tilt Servo ON/OFF Tilt Bias Tilt Bias Disc Check 5: Thresholds check 9: No thresholds check 0: Cancel 1: Proceed 2: Return 9: Go 0: Cancel Up Down Remarks Disc CD, SL, DL CD, SL, DL CD, SL, DL CD, SL, DL CD, SL, DL CD, SL, DL CD, SL, DL CD, SL, DL CD, SL, DL CD, SL, DL CD, SL, DL *1 Setting Method: 1. With the power turned off, press the ! button while pressing the [DIGITAL OUT] button and l button. 2. Display of "bbb" implies that the set is now in the Adjustment-1 Mode. Resetting Method: Press the ! button to turn the power off, and disconnect the plug from the socket. 60 Overall Adjustment Go CD, SL, DL 5-3. ADJUSTMENT-2 MODE This mode is a special mode used to perform CLV jitter check and usually movement check. Note: 1. Wrong setting method can cause a trouble. 2. Never operate the set with the loading panel mounted, which otherwise causes a trouble. 61 62 PLAY PAUSE STOP NEXT PREV Result Display Adj. Value Clear PLAY PAUSE STOP NEXT PREV CD, SL, DL CD, SL, DL CD, SL, DL CD, SL, DL CD, SL, DL CD, SL, DL CD, SL, DL Setting Method: 1. With the power turned off, press the ! button while pressing the [TIME] button and H button. 2. Display of "# OPEN #" implies that the set is now in the Adjustment-2 Mode. Resetting Method: Press the ! button to turn the power off, and disconnect the plug from the socket. Adjustment item Adjustment-1 Mode Adjustment-2 Mode Traverse check, S curve check, RF level check, optical pick-up height adjustment, and see contents of Adjustment-1 Mode list. CLV jitter check and usually movemant check SACD select FILTER Focus Search/PLAY (SACD/CD key) CD select (SACD/CD key) SL CD Note: 1. Selection of an adjustment item where no disc is present could damage the optical pick-up. 2. Do not use other than above listed codes. *1: Disc check list Display Discchk DO SL Discchk D1 SL Discchk D2 CD Discchk D3 CD Discchk D3 HD Discchk D4 D0 Discchk D4 D1 Result of Disc Check No disc SL CD Hybrid CD layer Hybrid HD layer DL L0 layer DL L1 layer 11 SECTION 6 ELECTRICAL ADJUSTMENTS Note on Adjustment 1. When the following parts were replaced, adjust and check the items marked with a in the given order. Parts Adjustment & check 1. Optical Pick-up Height Adjustment 2. Overall Adjustment 3. Traverse Check 4. S Curve Check 5. RF Level Check 6. CLV Jitter Check a a a a × Optical pick-up a IC on RF or MAIN board × a × × × × Spindle motor (M7) a × × × × a Traverse Check Connection: oscilloscope (auto or normal mode) MAIN board TP516 (TE) TP501 (VC) + ­ 2. Adjustment jigs The following jigs are exclusively used for electrical adjustment and check of this set. Do not use them for other applications. (1) Disc Model SATD-S1 SATD-S2 SATD-S3 SATD-S4 TCD-784 Type*1 SL SL DL SL CD Category 8cm disc Reference disc Reference disc Reference disc Reference disc Applications Optical pic-kup H adj. Overall adj. and check Overall adj. and check Audio characteristic check Overall adj. and check Procedure: 1. Connect an oscilloscope to the TP516(TE) and TP501(VC) on the MAIN board. 2. Set the Adjustment-1 Mode. (See 5-2. Adjustment-1 Mode in SECTION 5 (page 11)) 3. Set a disc (SATD-S2, SATD-S3, or TCD-784). 4. Press the 3 button and - button on the remote commander to make the disc type checked. Note: If the disc check was made in the Adjustment-1 Mode, pressing another button immediately after pressing the 3 and - buttons on the remote commander could cause the microcomputer to run out of control, thus requiring extreme care. 5. Confirm that the disc was checked. bbb CD1 Discchk XX XX Disc type (refer to Disc check list (page 11)) *1 SL: Single Layer DL: Dual Layer (2) Remote commander: Assessory for set or RM-D950 (Part No. 1-473-944-1) (3) Extension cable (Part No. J-2501-164-A) 2 pcs. 3. In making adjustment and check, set the CD1/CD2 switch on the remote commander to CD1. 4. The impedance of oscilloscope should be more than 10M . 6. Press the H button. 7. Press the - button and 7 button, and the - button and 5 button on the remote commander successively to turn off the tracking servo. 8. Check that the waveform on oscilloscope is within the level A and B specifications. 9. After checking, press the x button. 10. Repeat steps 3 through 9 respective discs. 11. Press the ! button to turn the power off. Specified Value: Disc SATD-S2 SATD-S3 TCD-784 1.3 to 2.4 Vp-p - 0.1 to +0.1 V A B Traverse waveform Center fo the waveform A B VC Adjustment Location : See page16. 12 S Curve Check Connection: oscilloscope (normal mode) MAIN board TP524 (FE) TP501 (VC) + ­ RF Level Check Connection: oscilloscope (auto mode) MAIN board TP503 (RF) TP501 (VC) + ­ Procedure: 1. Connect an oscilloscope to the TP524(FE) and TP501(VC) on the MAIN board. 2. Set the Adjustment-1 Mode. (See 5-2. Adjustment-1 Mode in SECTION 5 (page 11)) 3. Set a disc (SATD-S2 or TCD-784). 4. Press the 3 button and - button on the remote commander to make the disc type checked. Note: If the disc check was made in the Adjustment-1 Mode, pressing another button immediately after pressing the 3 and - buttons on the remote commander could cause the microcomputer to run out of control, thus requiring extreme care. Procedure: 1. Connect an oscilloscope to the TP503(RF) and TP501(VC) on the MAIN board. 2. Set the Adjustment-1 Mode. (See 5-2. Adjustment-1 Mode in SECTION 5 (page 11)) 3. Set a disc (SATD-S2 or TCD-784). 4. Press the 3 button and - button on the remote commander to make the disc type checked. Note: If the disc check was made in the Adjustment-1 Mode, pressing another button immediately after pressing the 3 and - buttons on the remote commander could cause the microcomputer to run out of control, thus requiring extreme care. 5. Confirm that the disc was checked. 5. Confirm that the disc was checked. bbb CD1 bbb CD1 Discchk XX XX Discchk XX XX Disc type (refer to Disc check list (page 11)) Disc type (refer to Disc check list (page 11)) 6. Press the - button and 1 button, the - button and 2 button, and the - button and 3 button on the remote commander successively to execute the focus search. 7. Check that the waveform on oscilloscope is within the level A and B specifications. 8. After checking, press the x button. 9. Repeat steps 3 through 8 for respective discs. 10. Press the ! button to turn the power off. Specified Value: Disc SATD-S2 TCD-784 A 1.5 to 2.3Vp-p B - 0.1 to +0.1V 6. Press the H button. 7. Check that the waveform on oscilloscope is clear, and the level and jitter of waveform satisfy the specifications. 8. After checking, press the x button. 9. Repeat steps 3 through 8 for respective discs. 10. Press the ! button to turn the power off. Specified Value: Disc SATD-S2 TCD-784 A 1.25 to 1.65 Vp-p 1.3 to 1.7 Vp-p Jitter (displayed value) 20 (Hex) or less 15 (Hex) or less RF signal waveform VOLT/DIV: 200 mV TIME/DIV: 500 ns S curve waveform A A B VC Note: Clear RF waveform refers to the waveform where shapes should be distinctively observed in the center. Note: For easier observation of this waveform, extend the sweep time and raise the brightness. Display example: Adjustment Location : See page16. bbb CD1 + 00 00 not fixed ~00 09 Jitter value (HEX) Adjustment Location : See page16. 13 CLV Jitter Check Connection: oscilloscope (normal mode) MAIN board TP702 (MNT4) TP703 (MNT5) TP521 (GND) (CH2) (CH1) + ­ + Optical Pick-up Height Adjustment Connection: storage oscilloscope (normal mode) MAIN board TP515 (PI) TP511 (FOUT) TP501 (VC) (CH1) (CH2) + ­ + Procedure: 1. Connect an oscilloscope to the TP702(MNT4)(CH1), TP703(MNT5)(CH2) and TP521(GND) on the MAIN board. 2. Set the Adjustment-2 Mode. (See 5-3. Adjustment-2 Mode in SECTION 5 (page 11)) 3. Set a disc (SATD-S2 or TCD-784). 4. Press the H button. 5. Move the sled to the middle track. · Sled middle track SATD-S2:TN05 TCD-784:TN05 6. Check that the A value of waveform on oscilloscope satisfies the specification. 7. After checking, press the x button. 8. Repeat steps 3 through 7 for respective discs. 9. Press the ! button to turn the power off. Specified Value: Disc SATD-S2 TCD-784 A 55 µsec or less Procedure: 1. Connect an oscilloscope to the TP515(PI)(CH1), TP511(FOUT) (CH2) and TP501(VC) on the MAIN board. 2. Set the Adjustment-1 Mode. (See 5-2. Adjustment-1 Mode in SECTION 5 (page 11)) 3. Set a disc (SATD-S1). 4. Press the [FILTER] button to set the Focus Search mode. 5. Loosen the OP height adjusting screw 1, and while shifting the Holder (R2), adjust the height so that the waveform on oscilloscope satisfies the specified value. 6. Press the [FILTER] button to set the Play mode. 7. Adjust the TAN skew 2 so as to attain most preferable jitter value on the display. 8. Press the [FILTER] button to set the Focus Search mode. 9. Check that the B value of waveform on oscilloscope satisfies the specification. 10. Repeat steps 5 through 9. 11. Lock the OP height adjusting screw 1 when adjustment finished. 12. Press the x button. 13. Press the ! button to turn the power off. Specified Value: B is more than 0, and less than A/3 CLV jitter waveform B VC A PI VC FOUT *1 A Adjustment Location : See page16. *1: Normal-trigger the oscilloscope using FOUT on CH2. 2 TAN skew 1 OP height adjusting screw Holder (R2) Adjustment Location : See page16. 14 Overall Adjustment Procedure: 1. Set the Adjustment-1 Mode. (See 5-2. Adjustment-1 Mode in SECTION 5 (page 11)) 2. Press the 6 button and 2 button, then the 9 button on the remote commander (to initialize data). 3. Set a disc (TCD-784). 4. Press the 6 button and - button, then the 5 button on the remote commander. (Adjustment will take about 2 minutes.) 5. Remove the disc when "CD END" is displayed. 6. Set a disc (SATD-S2). 7. Press the 6 button and - button, then the 5 button on the remote commander. (Adjustment will take about 1 minute 30 seconds.) 8. Remove the disc when "SL END" is displayed. 9. Set a disc (SATD-S3). 10. Press the 6 button and - button, then the 5 button on the remote commander. (Adjustment will take about 1 minute.) 11. Remove the disc when "DL END" is displayed. Note: If an error is displayed during the adjustment so far, press again the 6 button and - button on the remote commander to execute readjustment. Thresholds for Overall Adjustment No. 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Description PI Level SL PI Level DL PI Offset CD PI Offset SL PI Offset DL PI Offset Disc Check Traverse Offset CD Traverse Offset SL Traverse Offset DL Traverse Gain CD Traverse Gain SL Traverse Gain DL For PI Level Disc Check PI Reflectance SL PI Reflectance DL Surface Reflect to CD Layer Distance Surface Reflect to DSD Layer Distance Low Push-pull for Disc Check High T Bal for Disc Check FE Offset CD FE Offset SL FE Offset DL Focus Bias CD Focus Bias SL Focus Bias DL0 AGC Focus Gain CD AGC Focus Gain DL AGC Focus Gain SL AGC Tracking Gain CD AGC Tracking Gain SL AGC Tracking Gain DL RF Loop Filter Offset CD RF Loop Filter Offset DSD Tilt Disordered Point CD +side Tilt Disordered Point CD -side Tilt Disordered Point SL +side Tilt Disordered Point SL -side Tilt Disordered Point DL +side Tilt Disordered Point DL -side/ Tilt Offset CD Tilt Offset SL Tilt Offset DL Focus Balance SL Focus Balance DL F0 F0 F0 10 10 10 E0 E0 E0 1500 0851 0C28 1A00 1100 1400 F6 F6 20 20 20 3000 1A00 2500 3C00 2500 2700 0A 0A 0 2D28 936 82 41 4FDF 0000 82 9999 47AE 2 7333 4083 U limit 0 3 15D 15D 15D 100 L limit 4 7 2A3 2A3 2A3 2FF 12. Press the 6 button and 1 button on the remote commander. 13. As the number and adjusted value are displayed, make sure that it is within the threshold. 14. Press the 1 button on the remote commander to proceed to the next item. (To return to the previous item, press the 2 button.) 15. Repeat steps 13 and 14. 16. After checking items up to No.43, press the ! button to turn the power off. Note: 1. No threshold specified for items. 2. All thresholds are displayed in Hex. 15 Adjustment Location: ­ MAIN Board (Component Side) ­ TP501 (VC) TP503 (RF) TP524 (FE) TP521 (GND) TP516 (TE) TP703 (MNT5) TP515 (PI) TP511 (FOUT) TP702 (MNT4) 16 SECTION 7 DIAGRAMS 7-1. NOTES FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. · % : indicates tolerance. f · : internal component. · 5 : fusible resistor. · C : panel designation. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Note: Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce por tant le numéro spécifié. · Circuit Boards Location Note on Printed Wiring Board: · X : parts extracted from the component side. · Y : parts extracted from the conductor side. a · : Through hole. · b : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Caution: Pattern face side: (Conductor Side) Parts face side: (Component Side) Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated. AC board POWER board COAX board OPT board STB board MAIN board BAL board (SCD-1) SW board · Indication of transistor C Q BE These are omitted. PIN board SW-L board · U : B+ Line. · V : B­ Line. · Voltages and waveforms are dc with respect to ground in adjustment mode. no mark :STOP ( ) :SACD :CD · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. · Circled numbers refer to waveforms. · Signal path. J : SACD c : CD I : DIGITAL OUT LOAD-SW board LOAD-MOT board DISPLAY board AUDIO board SW-R board LOAD-CN board SLD-MOT board SLD-FG board RF board 17 17 SCD-1/777ES 7-2. PRINTED WIRING BOARDS ­ RF/SLD-FG/SLD-MOT Boards ­ · See page 17 for Circuit Boards Location. (Page 22) (Page 22) · Semiconductor Location ­RF Board­ Ref. No. IC001 IC002 IC003 IC004 IC005 IC006 IC007 Location E-2 C-4 A-3 A-2 C-3 C-3 C-2 Ref. No. IC010 IC011 IC012 Q001 Q002 Q003 Location A-2 C-2 A-1 F-3 B-5 B-4 Ref. No. Q004 Q006 Q007 Q008 Q009 Location B-4 A-3 D-5 B-5 B-5 18 18 SCD-1/777ES 7-3. SCHEMATIC DIAGRAM ­ RF/SLD-FG/SLD-MOT Boards ­ · See page 40 for Waveforms. (Page 29) (Page 28) The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié. 19 19 SCD-1/777ES 7-4. PRINTED WIRING BOARDS ­ LOAD-CN/LOAD-MOT/LOAD-SW/STB Boards ­ · See page 17 for Circuit Boards Location. (Page 22) 20 20 SCD-1/777ES 7-5. SCHEMATIC DIAGRAM ­ LOAD-CN/LOAD-MOT/LOAD-SW/STB Boards ­ (Page 29) 21 21 SCD-1/777ES 7-6. PRINTED WIRING BOARD ­ MAIN Board (component side) ­ · See page 17 for Circuit Boards Location. (Page 18) (Page 18) (Page 38) (Page 38) · Semiconductor Location Ref. No. D501 D502 D503 D702 IC502 IC507 IC509 IC510 IC511 IC513 IC514 IC516 IC517 IC519 IC520 IC521 IC522 IC523 IC701 IC702 IC703 IC708 IC711 IC713 IC714 IC715 IC716 IC717 IC718 IC719 IC720 IC722 IC724 IC727 IC728 IC730 IC732 IC741 IC750 IC760 IC762 IC764 IC766 IC775 IC778 IC1501 IC1503 IC1651 Q507 Q509 Q511 Q705 Q1651 Q1652 Q1653 Location E-5 D-4 E-5 F-12 D-3 G-2 D-5 E-4 E-4 F-6 F-5 L-11 L-11 D-6 E-6 E-6 B-2 D-4 I-5 C-9 E-13 C-13 H-2 F-8 F-9 G-10 L-5 J-3 I-3 D-11 D-12 B-12 B-11 H-13 E-9 F-12 I-14 F-11 D-12 G-14 G-14 H-14 H-14 H-6 D-8 D-3 F-3 D-4 B-4 E-5 E-6 F-11 C-4 C-4 D-4 (Page 34) (Page 31) (Page 31) (Page 31) (Page 36) (Page 20) 22 22 SCD-1/777ES 7-7. PRINTED WIRING BOARD ­ MAIN Board (conductor side) ­ · See page 17 for Circuit Boards Location. · Semiconductor Location Ref. No. D504 D701 D1501 IC501 IC503 IC504 IC505 IC506 IC508 IC512 IC515 IC707 IC709 IC710 IC712 IC721 IC725 IC726 IC729 IC734 IC735 IC736 IC737 IC739 IC740 IC761 IC763 IC765 IC767 IC770 IC771 IC772 IC773 IC776 IC777 IC1502 Q501 Q502 Q506 Q508 Location L-11 C-13 E-3 C-2 E-2 C-4 F-2 B-3 B-6 F-5 L-11 C-9 E-12 F-9 H-3 B-11 E-14 F-12 E-8 J-6 J-4 I-5 I-5 B-12 B-10 G-14 G-14 H-14 H-14 F-14 E-14 C-14 D-14 H-2 H-2 B-3 L-13 L-13 C-4 B-3 23 23 SCD-1/777ES 7-8. SCHEMATIC DIAGRAM ­ MAIN Board (1/7) ­ · See page 40 for Waveforms. (Page 39) (Page 39) (Page 28) (Page 29) (Page 28) (Page 29) (Page 25) (Page 26) 24 24 SCD-1/777ES 7-9. SCHEMATIC DIAGRAM ­ MAIN Board (2/7) ­ · See page 40 for Waveforms. · See page 42 for IC Block Diagrams. (Page 32) (Page 32) (Page 24) (Page 27) 25 25 SCD-1/777ES 7-10. SCHEMATIC DIAGRAM ­ MAIN Board (3/7) ­ · See page 40 for Waveforms. (Page 24) (Page 25) (Page 29) (Page 28) (Page 30) (Page 30) (Page 25) (Page 30) (Page 27) (Page 30) (Page 28) (Page 30) (Page 29) (Page 29) (Page 29) (Page 29) (Page 30) (Page 29) (Page 30) (Page 29) 26 26 SCD-1/777ES 7-11. SCHEMATIC DIAGRAM ­ MAIN Board (4/7) ­ (Page 25) (Page 35) (Page 32) (Page 26) (Page 37) 27 27 SCD-1/777ES 7-12. SCHEMATIC DIAGRAM ­ MAIN Board (5/7) ­ · See page 42 for IC Block Diagrams. (Page 24) (Page 26) (Page 26) (Page 24) (Page 19) (Page 29) (Page 30) 28 28 SCD-1/777ES 7-13. SCHEMATIC DIAGRAM ­ MAIN Board (6/7) ­ · See page 42 for IC Block Diagrams. (Page 28) (Page 26) (Page 26) (Page 26) (Page 26) (Page 24) (Page 24) (Page 30) (Page 19) (Page 26) (Page 26) (Page 26) (Page 21) (Page 30) 29 29