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ORDER NO. MD9502012C1 Service Manual Radio Cassette Portable Stereo CD System RX-DT30 MASH* Colour Black Type : SG-20W MECHANISM SERIES TAPE DECK TRAVERSE DECK : RAE01 13Z MECHANISM SERIES I SPECIFICATIONS n Tape Recorder n Radio Section 4 track, 2 channel, stereo...
RX-DT30 Disassembly Instructions Warning This product uses a laser diode. Refer to caution statements on page 2. ACHTUNG : Die laserernheit nicht zerlegen. Die lasereinheit darf nur gegen eine vom hersteller spezrfizierte einheit ausgetauscht werden. “ATTENTION SERVICER” Some chassis components may have sharp edges. Be careful when disassembling and servicing.
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RX-DT30 Ref. No. P.C.B. Removal of the Power Supply P.C.B. ; Removal of the Battery -I.- Procedure (0 - @ ). Remove 6 screws 1. Release claw. 21,9*10 2. Remove 1 connector (CP306) 2. Pull out the battery P.C.B. Power SUPPLY P.C.B.
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R X - D T 3 0 1 Ref. No. 1 Removal of the Servo P.C.B. ~~~ I Procedure Removal of the flexrble cable 21,31,7 Push the top of the connector in the direction of the arrow@, and then pull out the flexrble cable in the Traverse Unit - directron of the arrowa.
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RX-DT30 INSTALLING CASSETTE COMPARTMENT J /J-Cass. Open Spring Install the cass. open spring as shown in above diagram. Cassette Compartment 2. Fix the cassette compartment to front cabinet Release the spring INSTALLING SERVO P.C.B. Before installing the servo P.C.B., move the optical pickup toward the outer edge from the mark “A”.
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RX-DT30 HOW TO CHECK THE TRAVERSE UNIT 1. Remove the top cabinet unit. (Refer to disassembly instructions, Fief No. 3) ( 0 - 0 ) 2. Remove 4 screws. Traverse Unit 3. Set up the traverse unit as shown in diagram.
RX-DT30 Schematic Diagram 2SC1684RTA WXHING (HIGH SPEED) a101.0102.0201.0202 ;st$OCDTA ‘JO1 D E C K 2 -R CH R E C / P t A Y “EL C H Kz.307 AN731 7 REC/PLAY Q 2 0 4 ” RIO, cto, K68oP...
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NOTES: < For MAIN & POWER SUPPLY CIRCUIT > SW301 Beatproof Switch. (I...BEATPFiOOF I, ll...BEATPROOF II) S501 AC/BatterySelect Switch.(JK501) < For DECK CIRCUIT > S601 Deck 1 Playback Switch. S602 Deck 2 Playback Switch. S603 Deck 2 Record Switch. VR601 Tape Speed Adjustment Switch.
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RX-DT30 Terminal Function of ICs IC702 (MN66271 RA) Digital Filter / D/A Converter Servo Processor / Digital Signal Processor / Mark Mark Function Function Focus balance adjustment output FBAL BCLK Serial bit clock terminal (Not used, open) (Not used,open) TBAL...
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RX-DT30 Function BYTCK 1 0 1 Byte clock output (Not used, open) Sub-code frame clock signal output Crystal frame clock signal output (fCLK=7.35kHz,double=l4.7kHz) Interpolation flag output (“H” interpolation) FLAG 1 0 1 Flag output (Not used, open) Spindle servo phase synchronizing signal output CLV, “L”...
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R X - D T 3 0 IC801 (M38222M2051) System Microprocessor Function LCD bias reference voltage V2 ’ “lJ “Ll LCD bias reference voltage Vi PCNT Power control signal output IGND MUTEA AF muting control signal output KEY1 Key source input CD signal process IC control signal outpu MCLK Mode select control signal output...
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( R X - D T 3 0 IWO3 (Al’ 8389SEl) Tracking Coil / Traverse Motor / Spindle Motor Focus Co Function Power supply terminal I Referencevoltage input Motor driver (4) input Motor driver (3) input - Groundconnection - Groundconnection N R E S E T I Resetinput - Groundconnection...
RX-DT30 H Measurements and Adjustments TUNER SECTION . ALIGNMENT INSTRUCTION READ CAREFULLY BEFORE AT-TEMPTING ALIGNMENT Set XBS switch to minimum Set power source voltage to 12 V DC. Output of signal generator should be no higher than necessary Set volume control to maximum to obtain an output reading.
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1 RX-DT30 CASSETTE DECK SECTION ALIGNMENT INSTRUCTION READ CAREFULLY BEFORE Al-TEMPTING ALIGNMENT Note : No Azimuth Head Alignment is required due to Aztec Head is used in the cassette mechanism. TAPE SPEED ALIGNMENT (DECK 1,2) (Standard Value 3000 * 50 Hz . . . Deck 2)
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RX-DT30 CD Player Section This product uses a laser diode. Refer to caution statements on page 2. Warning: is very dangerous to look or touch the laser beam. (laser radiation is invisible) Caution With the unit turned “on”, laser radiation is emitted from the pickup lens.
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j R X - D T 3 0 n Digital Servo System DIGITAL SERVO SYSTEM This servo system has no adjustment VRs. MN66271 RA (Super 1 chip IC) (Digital servo processor) _----- - - - - - Digital audio playback + coil Lens OCUS Focus error...
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1 R X - D T 3 0 Part Name & Description Ref No. Part No. Part Name &Description Remarks Ref No. Part No. (DECK 2) RXPOOlS PINCH ROLLER ASS’Y 245-l RMBC049 PINCH ARM SPRING IIMI RDVOOO7 MAIN BELT RBR4CY016-M RIP HEAD BRAKE SPRING RMB0109-I...
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1 RX-DT30 Replacement Parts List Notes: * Important safety notice: Components identified by 2 mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardant (resistors), high-quality sound (capacitors), low noise (resistors), etc are used. When replacing any of these components, be sure to use only manufacturer’s specified parts shown in the parts list.
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R X - D T 3 0 Part Name &Description Ref No. Part No. Remarks VARIABLE CAPACITOR 1 [Ml RCV4PCTOV 1-A VARIABLE CAPACITOR SWITCHES S501 RJJISMOZ-H SW. AC IN(JK501) I ,! SW. DECK 1 PLAYBACK S601 RSHlA013-J S602 RSHlA013-J SW, DECK 2 PLAYBACK S603 ) RSHlAOO4-1 / SW.
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1 R X - D T 3 0 Ref No. Pact No. Part Name & Description Rem& s701 RSMOOO6-P SW, RESET OSCILLATOR x701 RSXZ16M9M02T CERAMIC OSC R J 7 0 1 ERJ8GEYOROOA l/low R J 7 0 2 ERJ8GEYOROOA l/low R J 7 0 3 ERJ8GEYOROOA l/low l/low...