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Now downloading free:Sony SLV-SE 710 810 SX

Sony SLV-SE 710 810 SX free download

VCR, VHS, tape drives service manuals and repair information

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File name:SONY SLV-SE 710 810 SX adjustments.pdf
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Model:SLV-SE 710 810 SX 🔎
Original:SLV-SE 710 810 SX 🔎
Descr:SONY SLV-SE 710 810 SX adjustments
Group:Electronics > Consumer electronics > Video recorders VCR
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File name SONY SLV-SE 710 810 SX adjustments.pdf

SLV-SE610/SE710/SE810/SX710/SX717/SX810/X9 SECTION 7 ADJUSTMENTS During the adjustment, see the Parts Arrangement Diagram for Adjustments on Page 7-6. 2-1-3. Set-up of Adjustment In this adjustment, PAL or NTSC pattern generator is connected with LINE input signal terminal. When checking with tuner, connected AERIAL terminal. Check that the amplitudes of video signal SYNC signal, of picture portions, and of burst signals are flat at approximately 0.3, 0.7 and 0.3 V, respectively, and that the level ratio of the burst signal and "red" signal are 0.30: 0.66. Fig. 7-2-2. shows video signals (color bars) used in adjusting the video section. PAL 7-1. MECHANICAL ADJUSTMENTS Refer to the SERVICE MANUAL of VHS MECHANICAL ADJUSTMENT VI. 7-2. ELECTRICAL ADJUSTMENTS 2-1. PRE-ADJUSTMENT PREPARATIONS Necessary items and indications for total adjustment of electric circuit of this machine will be described in this chapter. 2-1-1. Instruments to be Used 1) Color TV 2) Oscilloscope 1 or 2 phenomena, band more than 30 MHz, delay mode, as provided. 3) NTSC pattern generator 4) PAL pattern generator 5) Digital voltmeter 6) Audio level meter 7) Audio noise meter 8) Audio generator 9) Attenuator 10) Alignment tape Part Code: 8-192-605-36 KRV-51P (PAL) Part Code: 8-192-605-32 KRV-51N2 (NTSC) 2-1-2. Connection Unless otherwise specified, connect and adjust the measuring instruments as shown in the following diagram. VIDEO LINE IN NTSC Fig. 7-2-2 Pattern generator VCR Monitor TV 2-1-4. Alignment Tapes [Alignment Tape (KRV-51N2/KRV-51P)] Mode 1 SP SP EP EP Time Seven minutes Three minutes Seven minutes Three minutes Video signal Color bar Monoscope Color bar Monoscope 400 Hz Audio signal (HiFi/Normal) Video output (75 ) VIDEO LINE OUT 2 3 4 Fig. 7-2-1 2-1-5. Specified I/O Level and Impedance Input/output terminal Video inputs LINE IN : phono jack 1 Vp-p, 75 , unbalanced, sync negative Audio inputs LINE IN : phono jacks 47 kW, ­7.5 dBs (0 dBs = 0.775 Vrms) More than 10 kW, ­4 dBs Video outputs LINE OUT: phono jack 1 Vp-p, 75 , unbalanced, sync negative Audio outputs LINE OUT: phono jacks ­7.5 dBs at load impedance 47 k Output impedance : less than 10 7-1 2-1-6. Adjusting Sequence Make the electrical adjustment in the following sequence. Power supply adjustment 2-3. 2-3-1. SERVO SYSTEM ADJUSTMENT Servo system adjustment RF Switching Position Adjustment (MA-400 BOARD) Purpose: Adjust the interval between A ch and B ch of tape playback output. Improve the interchangeability with other tapes and sets. When it is out of order, the interval appears on the screen, the screen is disturbed. Mode Signal PB Alignment tape SP mode color bar CH1: VIDEO LINE OUT CH2: Pin 2 of CN262 (RF SWP) Oscilloscope 6.5 ± 0.5 H (416 ± 32 µsec) PAL 6.5 ± 0.5 H (410 ± 32 µsec) NTSC Adjusting Method: 1) During playback, connect MA-400 board CN262 pin 3 and the pin 5 for about 1 second to activate the RF switching position adjustment mode. 2) Check appear "A P" on FL display. 3) Using

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