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SONY HCDRX66
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SONY HCDRX66 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 16 (click to view)
CD SECTION
Note: 1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10 MΩ impedance. 4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks.

E-F Balance (Traverse) check (Without remote commander)
oscilloscope BD board TP (TEO) TP (VC) + –

S Curve Check
oscilloscope BD board TP (FEO) TP (VC) + –

Procedure: 1. Connect oscilloscope to test point TP (TEO) on BD board. 2. Turned Power switch on. Press [FUNCTION] button to select CD. 3. Put disc (YEDS-18) in to play the number five track. 4. Press the p button, [ENTER/NEXT] button and ^ button simultaneously several times to fluorescent indicator tube display “SHUFFLE” is blink. (The sledding servo is turned OFF.) 5. Check the level B of the oscilloscope’s waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following: A × 100 = less than ±7 (%) B
Traverse waveform Center of the waveform

Procedure: 1. Connect oscilloscope to test point TP (FEO). 2. Connect between test point TP (FOK) and GND by lead wire. 3. Turn Power switch on. 4. Put disc (YEDS-18) in and turned Power switch on again and actuate the focus search. (Actuate the focus search when disc table is moving in and out.) 5. Check the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 3±1 Vp-p.
S-curve waveform
symmetry

B 0V A (DC voltage) symmetry level: 500 ± 100 mVp-p

A within 3 ± 1 Vp-p B

6. After check, remove the lead wire connected in step 2.
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.

6. Press the p button, [ENTER/NEXT] button and ^ button simultaneously several times to fluorescent indicator tube display “SHUFFLE” is OFF. (The sleding servo is turned ON.) Confirm the C (DC voltage) is almost equal to the A (DC voltage) is step 5.
Traverse waveform

RF Level Check
BD board TP (RF) TP (VC)

oscilloscope

+ –

0V

C (DC voltage) Sled servo OFF Sled servo ON

Procedure: 1. Connect oscilloscope to test point TP (RF) on BD board. 2. Turned Power switch on. 3. Put disc (YEDS-18) in and playback. 4. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not.
Note: Clear RF signal waveform means that the shape “≈” can be clearly distinguished at the center of the waveform.

• FR signal
VOLT/DIV: 200 mV TIME/DIV: 500 ns

level: 1.3 ± 0.3 Vp-p

– 16 –

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