Technics SL-PG390 [2/36] Contents

Содержание

• And italy 1
• Colour 1
• E europe eb britain eg germany 1
• Ep russia 1
• G p gk 390 1
• K black type 1
• Service manual 1
• Technics 1
• Warning 1
• Caution 2
• Contents 2
• Grounding for electrostatic breakdown prevention 2
• Handling of traverse deck optical pickup 2
• Handling precautions for traverse deck 2
• Precaution of laser diode 2
• Sl pg390 2
• This product utilizes a laser use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure 2
• Accessories 3
• Connections 3
• For united kingdom be sure to read the caution for the ac mains lead on page 4 before connecting 3
• Sl pg390 3
• To connect a digital amplifier 3
• Before use 4
• Caution 4
• Caution for ac mains lead 4
• For united kingdom 4
• How to replace the fuse 4
• Important 4
• Sl pg390__ 4
• Front panel controls 5
• H press play begins 5
• Main unit 5
• Q press open close to close the tray 5
• Q press open close to open the tray and in 5
• Q press power power goes on 5
• Sequential play 5
• Sert a disc 5
• Sl pg390 5
• Self diagnostic function 6
• Servo system self diagnosis 6
• Sl pg390 6
• Table 1 6 6
• Table 2 6
• The self diagnostic feature automatically diagnoses the deck s mechanism and provides error information display it includes self diagnosis functions for the servo system and the mechanism control switches 6
• Display power switch 7
• Figure 3 7
• Mechanism control switches self diagnosis 7
• Sl pg390 7
• Table 3 7
• Boards and replacing the main components 8
• Checking for the operation p c b and main p c b 8
• Checking procedures for each p c b 8
• Contents 8
• For reassembly after operation checks or replacement reverse the respective procedures 8
• Operation checks and main component replacement procedures 8
• Refer the parts no on the page of main component replacement procedures if necessary 8
• Select items from the following index when checks or replacement are required 8
• Sl pg390 8
• Special reassembly procedures are described only when required 8
• This section describes procedures for checking the operation of the major printed circuit 8
• Checking for the cd servo p c b 9
• Sl pg390 9
• Main component replacement 10
• Procedures 10
• Replacement for the traverse unit ass y 10
• Sl pg390 10
• Sl pg390 11
• Loading motor 12
• Replacement for the loading belt and 12
• Sl pg390 12
• Main circuit 13
• Q cd servo circuit 13
• Q loading motor circuit 13
• Q power switch circuit q operation circuit 13
• Schematic diagram 13
• Slpg390 13
• Cd servo circuit 14
• Cd signal line 14
• Ic701 an8805sbe1 14
• Ic703 an8389se1 14
• Negative voltage line 14
• Optical pickup 14
• P c boardion page 20 14
• Positive voltage line 14
• Q751 2sa933sqrsta 14
• Q752 2sc1740sqsta 14
• Sl pg390 14
• Terminal guide on page 25 c 14
• Terminal guideion page 24 14
• Si d iu 15
• Sl pg390 15
• 1 í 1 1 1 i 1 1 í í i 1 16
• A 2 2 28 16
• Cd signal line 16
• Ic401 upd78042a014 16
• Ic651 rcd12042th 16
• N n n w w n n n n oj 16
• Negative voltage line 16
• P c board on page 20 16
• P c board on page 21 16
• Positive voltage line 16
• Q51 52 2sc1740sqsta 16
• Terminal guide on page 23 16
• 6 r ch 17
• Digital optical out 17
• Jk801 line out 17
• Loading motor circuit 17
• Muting 17
• Sl pg390 17
• В main circuit 17
• Лалг 17
• Block diagram 18
• I optical pickupunit servo circuit 18
• Operation circuit 18
• Power supply circuit 18
• Sl pg390 18
• Printed circuit board diagram 20
• Sl pg390 20
• Main p c b 21
• Q operation p c b 21
• Sl pg390 21
• Sl pg390 22
• Wiring connection diagram 22
• Ic401 upd78042a014 23
• Sl pg390 23
• Terminal function of ic s 23
• Ic701 an8805sbe1 24
• Ic702 mn662713rg1 24
• Sl pg390 24
• Ic702 continued 25
• Ic703 an8389se1 25
• Sl pg390 25
• Troubleshooting guide 26
• Cabinet parts location 28
• Loading unit parts location 30
• Sl pg390 30
• Packaging 31
• Ref no part no part name description pc remarks ref no part no part name description pc remarks 32
• Replacement parts list 32
• Sl pg390 32
• Dutch danish 33
• English 33
• German italian french 33
• Indicate language of instruction manual 33
• Marks in remarks 33
• Printed in germany mbv f9803 am kh 33
• Sl pg390 33
• Spanish swedish russian 33

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SL PG390 Contents Handling Precautions for Traverse Deck 2 Precaution of Laser Diode 2 3 Accessories 3 Connections 3 Caution for AC Mains Lead 4 Front Panel Controls 5 Sequential Play 5 Self Diagnostic Function 6 7 Operation Checks and Main Component Replacement Procedures 8 12 Page Schematic Diagram 13 17 Block Diagram 18 19 Printed Circuit Board Diagram 20 21 Wiring Connection Diagram 22 Terminal Function of IC s 23 25 Troubleshooting Guide 26 27 Cabinet Parts Location 28 29 Loading Unit Parts Location 30 Packaging 31 Replacement Parts List 32 33 Handling Precautions for Traverse Deck The laser diode in the traverse deck optical pickup may break down due to potential difference caused by static electricity of clothes or human body So be careful of electrostatic breakdown during repair of the traverse deck optical pickup Handling of traverse deck optical pickup 1 Do not subject the traverse deck optical pickup to static electricity as it is extremely sensitive to electrical shock 2 To prevent the breakdown of the laser diode an anti static shorting pin is inserted into the flexible board FFC board When removing or connecting the short pin finish the job in as short time as possible 3 Take care not to apply excessive stress to the flexible board FFC board 4 Do not turn the variable resistor laser power adjustment It has already been adjusted Grounding for electrostatic breakdown prevention 1 Human body grounding Use the anti static wrist strap to discharge the static electricity from your body 2 Work table grounding Put a conducive material sheet or steel sheet on the area where the traverse deck optical pickup is placed and ground the sheet Caution The static electricity of your clothes will not be grounded through the wrist strap So take care not to let your clothes touch the traverse deck optical pickup CAUTION THIS PRODUCT UTILIZES A LASER USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE Precaution of Laser Diode CAUTION This product utilizes a laser diode with the unit turned on invisible laser radiation is emitted from the pick up lens Wave length 780 nm Maximum output radiation power from pick up 100 pWA DE Laser radiation from the pick up unit is safety level but be sure the followings 1 Do not disassemble the pick up unit since radiation from exposed laser diode is dangerous 2 Do not adjust the variable resistor on the pick up unit It was already adjusted 3 Do not lock at the focus lens using optical instruments 4 Recommend not to lock at pick up lens for a long time ACHTUNG Dieses produkt enthält eine laserdiode Im eingeschalteten zustand wird unsichtbare laserstrahlung von der lasereinheit adgestrahit Wellenlänge 780 nm Maximale Strahlungsleistung der laserinhelt 100 pWA DE Die Strahlung an der lasereinheit ist ungefährlich wenn folgende punkte beachtet werden 1 Die lasereinheit nicht zerlegen da die Strahlung an der freigelegten laserdiode gefähriich ist 2 Den werksseitig justierten einstellregler der lasereinreit nicht verstellen 3 Nicht mit optischen instrumenten in die fokussierlinse blicken 4 Nicht über längere zeit in die fokussierlinse blicken 2