Sony KV-27FV15 Training Manual

Course: CTV-26 WEGATM Direct View Television AA-2W Chassis Models: KV27FV15 KV32FV15 KV36FV15 KV32FS10 KV36FS10 KV32XBR250 KV36XBR250 ...

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3 V Chip 5 Introduction 5 What is V Chip Technology? 5 Parental Guideline Rating System 5 Parental Control Menu 6 Decoding 6 Power Supply Block 7 Standby Power Supply 9 Converter Operation 9 Regulation 9 Power On/Degaussing 13 Power On 13 Degaussing 13 Converter 15 Initial Start Up 15 Soft Start 15 Regulation 15 Troubleshooting 17 Table of Contents Soft Start/Regulation/Foldback 19 Soft Start 19 ...

sets are part of the WEGA line which contain the flat screen FD Trinitron picture tubes. This course describes the Power Supply, Deflection and Protection circuits with a twist of practical troubleshooting tips and known solutions. In addition, this course reviews picture tube diagnostics and solutions, plus the latest information on the V-Chip. The US models lis ...

AK Audio Amp, Surround Sound, Sub tuner, S-Link C RGB Drive G Power Supply HA Front A/V Inputs, Menu Buttons HB IR Detector HX Buttons T (XBR Only) IR Headphones UX (XBR Only) 3D Comb Filter, A/V Switch, Audio Control, SRS, Chroma Decode, PIP Encode UY (All Except XBR) 3 Line Comb Filter, A/V Switch, Audio Control, SRS, Chroma Deco ...

Overview Below is an excerpt from the CTV-25 course. It shows several picture tube defect symptoms, some of which can be repaired without changing the tube. Defective Picture Tube Symptoms Symptom Suspect Check Procedure Dark picture or one color missing. Heaters Open Apply 6Vdc to the heater terminals. Some heaters are connected in parallel, others in series but all take 6Vdc. Clean the CRT pins and examine the socket for c ...

inches or larger manufactured after July 1, 1999, and all sets 13 inches or larger manufactured after January 1, 2000 must have V-Chip technology. Set top boxes that allow consumers to use V-Chip technology on their existing sets are now available.” This quote from the FCC web page defines the guidelines that manufacturers of television receivers must fol ...

Sony V Chip equipped televisions contain the Parental Control Menu, which is located in the Setup section. When it is selected, the user will be asked for a 4-digit password. After this password is entered, the user will be asked to confirm it. After confirmation, the password is set. Anytime the user wants to modify the Parental Control Menu, the password must be entered. Note: If the customer forgets their password, the maste ...

Overview The power supply in the AA2W chassis is located on the G board. AC from the outlet is applied to a series of line filters and protection devices and eventually applied to the standby supply, AC rectifier and degauss circuits. The Standby supply is a switching supply whose output is ap- plied to a 5-volt regulator. The output from the regulator exits the G board at CN641/10. It is applied to various components in the set th ...

SOFT START FOLDBACK REGULATION DC PROTECTION & LATCH DGC POWER ON STANDBY 5V 11 DGC +135V 1/1/00 1 2 B+ 135V ...

Q621/G - 1 V, 10 us Q621/S - 1 V, 10 us Standby Power Supply Overview The standby power supply is a switching power supply used to create Standby 5V. The Standby 5V line is used to power the Tuning Micon and EEPROM and any other circuits which need power when the set is OFF. Converter Operation Operation of the Standby power supply begins when the set is plugged in. The AC line voltage is applied across the standby power supply. ...

10 D D625 S 7.2VDC TO Q646/E BACKUP 12/28/99 ...

Monitoring the voltage across R637 is used for over current protection. This voltage is representative of the amount of current flowing through Q621 Converter since it is in series with the transistor. If this voltage should rise to .6 volts, it will cause Q622 to turn ON. If Q622 were to turn ON, it would shunt Q621/G voltage to ground. This would cause Q621 Converter to stop conducting. Over Voltage Protection (OVP) Ov ...

10 D D625 S 7.2VDC TO Q646/E BACKUP 12/28/99 ...

set is turned ON. When the set is turned ON, the degaussing circuit is activated. Power On When the set is plugged in, the AC voltage is applied through F601, T601 and T602. Additional components C605, VDR601, C604 and VDR602 are across the AC line input. They are in place for protection from AC line spikes and surges. This AC voltage is applied to t ...

14 CN602 C605 VDR601 DGC CN641 R642 R641 FROM Q642/E LATCH T602 C604 RY601 C601 Q644 Q648 12V T601 R623 R664 VDR602 THP602 THP601 RY600 C607 D629 R625 C606 R624 HOT GROUND D630 TO CONVERTER TO CN641/10 STANDBY 5V TO Q646/B BACKUP AND Q647/B SOFT START RESET POWER ON/DEGAUSSING 4CTV26 1188 3 4 2 1 2 1 3 4 C603 R603 D614 R622 R626 C624 F601 CN603 CN601 6.3A R607 0.1 OHM D602 STANDBY POWER SUPPLY I O G IC622 BAO5T 5V REG. STANDBY 5V G BOARD 1 2 1 3 1 3 2 11 ...

a transformer’s primary winding. This switching will produce a signal that will be coupled to the transformers secondary windings where they are rectified and used to supply various voltages to the set. The frequency of this switching is controlled to maintain a consistent value on the +135 volt line. Changing the frequency of the switching can be used fo ...