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SONY HTCWX5
Service Manual


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

Description of SONY HTCWX5 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 13 (click to view)
HTC-WX5

Record Bias Adjustment (Deck B) Procedure: 1. 2. 3. 4. Press the p (CD) button while pressing the DIRECTION MODE button. While pressing the p (CD) button, press the ª (TAPE A) button, set the function to “deck B”. Insert a tape into deck B, press the r REC button, and then press the ( button to start recording. Mode: Record
INPUT POINT 1) 315 Hz } 50 mV (–23.8 dB) 2) 10 kHz AF OSC attenuator 600 Ω PFJ-1 set blank tape CS-123

Record Level Adjustment (Deck B) Procedure: 1. 2. 3. 4. Press the p (CD) button while pressing the DIRECTION MODE button. While pressing the p (CD) button, press the ª (TAPE A) button, set the function to “deck B”. Insert a tape into deck B, press the r REC button, and then press the ( button to start recording. Mode: Record
INPUT POINT 315Hz 50 mV (–23.8 dB) 600 Ω attenuator PFJ-1 set

CD SECTION
Note: 1. CD Block is basically constructed 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 10MΩ 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. S Curve Check
oscilloscope

E-F Balance (1 Track Jump) check
oscilloscope BD board TP (TEO) TP (VC)

AF OSC

blank tape CS-123

Procedure: 1. Connect oscilloscope to test point TP (TEO) on BD board. 2. Turned Power switch on. 3. Put disc (YEDS-18) in to play the number five track. 4. Press the “P (Pause)” button. 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/B x 100 = less then ± 7 (%) • B = 500 ± 100 mVp-p

BD board TP (FEO) TP (VC)

Procedure : 1. Connect oscilloscope to test point TP (FEO). 5. Mode: Playback
recorded position level meter

1 track jump waveform
Center of the waveform

5.

Mode: Playback
recorded position set

PFJ-1
set

PFJ-1

level meter

2. 3. 4.

Connect between test point TP (FOK) and Ground by lead wire. Turn Power switch on. 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.) Check the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 3 ± 1Vp-p.
S-curve waveform symmetry
0V

B A (DC voitage)

5.
output

output point

point
level : 500 mV ± 100 mVp-p

Symmetry

6.

Confirm playback the signal recorded in step 2 become adjustment level as follows. If these levels do not adjustment level, adjust the RV341 (LCH) and RV441 (R-CH) on the AUDIO board to repeat steps 3 and 4.

6.

Confirm playback the signal recorded in step 2 become adjustment level as follows. If these levels do not adjustment level, adjust the RV301 (LCH) and RV351 (R-CH) on the MAIN board to repeat steps 3 and 4.

A Within 3 ± 1 Vp-p B

Adjustment Location: [BD BOARD] (Conductor Side)
TP (RF) TP (VC) TP (FOK)

Adjustment level: The playback output of 10 kHz level difference against 315 Hz reference should be ± 1.0 dB. Adjustment Location: AUDIO board

Adjustment level: Output point from PFJ-1 playback level: 47.2 to 53.0 mV (–24.3 to –23.3 dB) Adjustment Location: MAIN board 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. RF Level Check
oscilloscope

CN101

IC101 TP (TEO) TP (FEO)

IC102

[AUDIO BOARD] (Component Side)

[MAIN BOARD] (Component Side)

BD board TP (RF) TP (VC)

TP (GND) IC103

RV341(Lch),RV441(Rch) Record Bias

RV311(Lch),RV411(Rch) Playback Level (Deck A)

CNS102

RV301 Record Level (L ch)

Procedure : 1. 2. 3. 4. Connect oscilloscope to test point TP (RF) on BD board. Turned Power switch on. Put disc (YEDS-18) in and playback. Confirm that oscilloscope waveform is clear and check RF
IC102

RV301 RV401 RV441 RV341

CNP105
RV311 RV411

RV301(Lch),RV401(Rch) Playback Level (Deck B)

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.
CNS101 RV351 Record Level (R ch)
RF signal waveform
VOLT/DIV : 200mV TIME/DIV : 500ns

level : 1.3 ± 0.3 Vp-p

13

13

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