Clarion PP-2121I-A Скачать руководство пользователя страница 2

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PN-2121D

To engineers in charge of repair or inspection of our products.

Before repair or inspection,make sure to follow the instructions so that customers and Engineers in

charge of repair or inspection can avoid suffering any risk or injury.

1. Use specified parts.

The system uses parts with special safety features against fire and voltage.Use only parts with equivalent characteris-

tics when replacing them.

The use of unspecified parts shall be regarded as remodeling for which we shall not be liable.The onus of product liability

(PL) shall not be our responsibility in cases where an accident or failure is as a result of unspecified parts being used.

2. Place the parts and wiring back in their original positions after replacement or re-wiring.

For proper circuit construction,use of insulation tubes,bonding,gaps to PWB,etc,is involved.The wiring connection and

routing to the PWB are specially planned using clamps to keep away from heated and high voltage parts.Ensure that

they are placed back in their original positions after repair or inspection.

If extended damage is caused due to negligence during repair,the legal responsibility shall be with the repairing com-

pany.

3. Check for safety after repair.

Check that the screws,parts and wires are put back securely in their original position after repair.Ensure for safety

reasons there is no possibility of secondary ploblems around the repaired spots.

If extended damage is caused due to negligence of repair,the legal responsibility shall be with the repairing company.

4. Caution in removal and making wiring connection to the parts for the automobile.

Disconnect the battery terminal after turning the ignition key off.If wrong wiring connections are made with the battery

connected, a short circuit and/or fire may occur.If extensive damage is caused due to negligence of repair,the legal

responsibility shall be with the repairing company.

5. Cautions regarding chips.

Do not reuse removed chips even when no abnormality is observed in their appearance.Always replace them with new

ones.(The chip parts include resistors,capacitors,diodes,transistors,etc).The negative pole of tantalum capacitors is

highly susceptible to heat,so use special care when replacing them and check the operation afterwards.

6. Cautions in handling flexible PWB

Before working with a soldering iron,make sure that the iron tip temperature is around 270

.Take care not to apply the

iron tip repeatedly(more than three times)to the same patterns.Also take care not to apply the tip with force.

7. Turn the unit OFF during disassembly and parts replacement.Recheck all work before you apply power to the unit.

8. Cautions in checking that the optical pickup lights up.

The laser is focused on the disc reflection surface through the lens of the optical pickup. When checking that the laser

optical diode lights up,keep your eyes more than 30cms away from the lens.Prolonged viewing of the laser within 30cms

may damage your eyesight.

9. Cautions in handling the optical pickup

The laser diode of the optical pickup can be damaged by electrostatic charge caused by your clothes and body.Make

sure to avoid electrostatic charges on your clothes or body,or discharge static electricity before handling the optical

pickup.

9-1. Laser diode

The laser diode terminals are shorted for transportation in order to prevent electrostatic damage.After

replacement,open the shorted circuit.When removing the pickup from the mechanism,short the terminals by

soldering them to prevent this damage.

9-2. Actuator

The actuator has a powerful magnetic circuit.If a magnetic material is put close to it.its characteristics will

change.Ensure that no foreign substances enter through the ventilation slots in the cover.

9-3. Cleaning the lens

Dust on the optical lens affects performance.To clean the lens,apply a small amount of isopropylalcohol to

lens paper and wipe the lens gently.

Dolby noise reduction manufactured under license

from Dolby Laboratories Licensing Corporation.

"DOLBY" and the double-D symbol are trademarks of

Dolby Laboratories Licensing Corporation.

Specifications and design are subject to change with-

out notice for further improvement.

COMPONENTS

PN-2121D-A/PN-2121N-A/PP-2121I-A

Main unit

      

1

Содержание PP-2121I-A

Страница 1: ...z to 107 9MHz Intermediate frequency AM 450kHz FM 10 7MHz Quieting sensitivity AM Less than 32dBμ at 20dB S N FM Less than 10dBμ at 30dB S N Separation FM More than 20dB Auto tuning stop sensitivity AM 32 6dBμ FM 25 6dBμ Tape section Reproducting system 4 track 2 channel stereo cassette tape playback Wow and flutter Less than 0 15 W R M S Separation More than 35dB Cross talk More than 45dB S N rat...

Страница 2: ...arance Always replace them with new ones The chip parts include resistors capacitors diodes transistors etc The negative pole of tantalum capacitors is highly susceptible to heat so use special care when replacing them and check the operation afterwards 6 Cautions in handling flexible PWB Before working with a soldering iron make sure that the iron tip temperature is around 270 Take care not to ap...

Страница 3: ...DIFFRENCE FROM ORIGINAL MODEL ADJUSTMENS Clock section PN 2121N A Clock 1 Connect a electrical chronometer to CLOCK TP of Main PWB 2 Adjust the TC101 so that Output of chronometer becomes 0 1 0 1 sec Electrical chronometer Item Procedure Measuring instrument CIRCUT DIAGRAM Main PWB section 2 2 System control PWB section PN 2121N A Main PWB section 2 2 System control PWB section ...

Страница 4: ... 4 PN 2121D Display PWB section PN 2121N A System control PWB section PN 2121D A PN 2121N A PP 2121I A TO SYSTEM CONTROL PWB J502 ...

Страница 5: ...5 1 10W 24kΩ R 233 117 2431 15 1 10W 24kΩ System control PWB section REF No PART No DESCRIPTION REF No PART No DESCRIPTION REF No PART No DESCRIPTION D 520 001 0330 00 1SS119 D 520 001 0352 00 1SS176 D 521 DELETE PARTS LIST PN 2121N A Main PWB section REF No PART No DESCRIPTION REF No PART No DESCRIPTION REF No PART No DESCRIPTION C 114 184 4773 22 10V 470μF C 157 176 1011 00 100pF L 106 010 2174 ...

Страница 6: ...RT No DESCRIPTION REF No PART No DESCRIPTION REF No PART No DESCRIPTION D 520 001 0330 00 1SS119 D 520 001 0352 00 1SS176 D 521 DELETE Display PWB section REF No PART No DESCRIPTION REF No PART No DESCRIPTION REF No PART No DESCRIPTION PL 701 017 0433 05 14V 40mA PL 702 017 0433 05 14V 40mA PL 703 017 0433 05 14V 40mA PL 704 017 0433 05 14V 40mA PL 705 017 0433 05 14V 40mA PL 706 017 0433 05 14V 4...

Страница 7: ...ain PWB section 2 2 System control PWB secstion PN 2121N A D519 D521 PN 2121N A D520 PN 2121D A PP 2121I A Main PWB section 2 2 System control PWB secstion PN 2121N A D519 D521 PN 2121N A D520 PN 2121D A PP 2121I A ...

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