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Sony KV-13FS100 Product & Training Manual
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Sony KV-13FS100 Product & Training Manual

Sony KV-13FS100 Product & Training Manual

Ba-6 chassis circuit description and troubleshooting
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See also: Service Manual
BA-6 Chassis
Models:
KV-13FS100
KV-13FS110
KV-20FS100
KV-20FV300
KV-24FS100
KV-24FV300
Circuit Description and Troubleshooting
Course: CTV-30
Training Manual
KV-24FV300

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Summary of Contents for Sony KV-13FS100

  • Page 1 Training Manual BA-6 Chassis Models: KV-13FS100 KV-13FS110 KV-20FS100 KV-20FV300 KV-24FS100 KV-24FV300 KV-24FV300 Circuit Description and Troubleshooting Course: CTV-30...

  • Page 2: Table Of Contents

    Table of Contents Introduction ...........1 4. Deflection Circuits ......15 Vertical Theory ............. 15 Overview..............1 Horizontal and Pincushion........16 CTV-30 Objectives ..........1 Vertical Deflection Circuit........19 1. Features ..........2 Horizontal Deflection and Overview..............2 Pincushion Circuits ..........18 Audio Features ............2 5.

  • Page 3: Introduction

    1. Features Introduction Overview This course will cover the new BA-6 chassis. The USA model sizes for the BA-6 chassis are 13", 20" and 24". This chassis has major circuit changes from the BA-5 chassis, the main one being the integration of Syscon, YC Jungle and Comb Filter into one IC package (called One-Chip).

  • Page 4: Features

    1. Features Chapter 1 - Features Overview This section covers the Audio, Video, Convenience features of the BA-6 chassis models. Also included is a Features Glossary. BA-6 Chassis Models: KV-13FS100 KV-13FS110 KV-20FS100 KV-20FV300 KV-24FS100 KV-24FV300 NOTE: The BA-6 chassis meets the Energy Star® guidelines for energy efficiency Audio Features Reference Table 1-1 for the Audio features of each model using the BA-6 chassis.

  • Page 5: Video Features

    1. Features Video Features Reference Table 1-2 for the Video features of each model using the BA-6 chassis. • FD Trinitron WEGA TV (Flat CRT) Table 1-2 – Video Features per Model Tilt Video XDS/CC Comb Video Correction Input Chip filter Input Input...
  • Page 6 1. Features Steady Sound – Stabilizes volume during sudden sound fluctuations of received audio. WOW – Provides a dramatic presence with full, deep bass sound. When WOW is enabled, BBE is directly activated to further enhance the audio program. Video 3D comb Filter –...

  • Page 7: Overall Ba-6 Block

    2. Overall BA-6 Block Chapter 2 - Overall BA-6 Block Overview The BA-6 chassis has taken a major step towards the “TV on a Chip” concept. The One Chip (IC001) performs all System Control and Signal Processing functions. In previous models these functions were handled by three different ICs: System Control, YC Jungle and Comb Filter.

  • Page 8: A Board

    2. Overall BA-6 Block A Board The A board contains all the Power Supply, System Control, Deflection, Video Processing and Audio Processing circuits. VIDEO 1 AUDIO VIDEO 2 PROCESSOR HR BOARD AUDIO & INPUT SWITCHER AUDIO IN AUDIO OUT X001 STBY MAIN STBY...

  • Page 9: Cv Board

    The only circuit change on the A board between models is the Audio processing IC. The KV-20FV100, and KV-24FV300 use IC400 (IC400 contains the Surround Sound processing circuits); the KV-20FS100, KV-24FS100, and KV-13FS100/110 use IC401. All models use Audio Amplifier IC404. Video Section All Front/Rear Video input jacks and the Tuner are located on the A board.

  • Page 10: Power Supply

    3.Power Supply Block Chapter 3 - Power Supply Power Supply Block The power supply section in the BA-6 chassis is labeled Energy Star® compliant. This means that the power supply meets or exceeds the power conservation standard set forth by the EPA and the Department of Energy. That standard states that an analog TV should draw <1 Watt in Standby Mode.

  • Page 11: 5V Standby Power Supply & Power-On Switching Circuits

    3. Power Supply Block Degauss Circuit The degauss circuit consists of the Degauss Coil, Degauss Switch circuit (Q501) and relay RY501. b The DC power (14V) for the relay comes from the rectifier circuit (D621, C616, L607 and C632) that feeds the 9V regulator circuit.
  • Page 12 3.Power Supply Block Power-ON Switching Circuit Reference Figure 3-2 for the following circuit description: In the Standby Mode, the System Control (IC001) is partially ON (using the Standby 5V and Standby 3.3V), and waiting for an “ON” command from either the Front Panel Controls or the Remote Control Input (IC004 not shown).

  • Page 13: Main Switching Power Supply Circuit

    3. Power Supply Block Main Switching Power Supply Circuit AC FROM T601 TO T602 STANDBY POWER SUPPLY D605 FROM R630 IC633 3.3V RY600 R601 FILTER R615 CIRCUIT R640 R629 291V Q600 IC603 145V 275Vpp R627 2.7V 85KHz T603 DEGAUSS RY501 140V SENSE R626...
  • Page 14 3.Power Supply Block IC600 Startup Sequence 1) Turn ON voltage: The 293Vdc from the filter circuit is voltage divided by R630, R629, R627 and R626 down to 2.7Vdc. This voltage is applied to IC600/pin 1 (Vsense) and IC600 turns ON. IC600/pin 1 (Vsense) is also used for OVP protection (IC001/pin 1 >...
  • Page 15 3. Power Supply Block NOTE: Use HOT GRND when making measurements on primary side of T603. This includes all measurements on IC600. Symptom: Unit goes into protection mode LED flashes four times. Check: This indicates either a Vertical deflection or Power Supply problem. 1) Check power supply secondary outputs.

  • Page 16: Static Mosfet Resistance Tests

    3.Power Supply Block Static MOSFET Resistance Tests – Table 3-1 Table 3-1 - Static MOSFET Resistance Tests + / - - / + Gate – Source Infinity Infinity Gate - Drain Infinity Infinity Drain - Source There is a zener diode connected internally across these terminals Power MOSFET TO 220 case...

  • Page 17: Deflection Circuits

    4. Deflection Circuits Chapter 4 - Deflection Circuits The One Chip IC001 contains the YC Jungle. Vertical Drive, Horizontal Drive and Pincushion Correction circuits are all located on the A-board in the BA-6 chassis. In the BA-5, these circuits are divided up between two boards: the A-board and MB board.

  • Page 18: Horizontal And Pincushion

    4. Deflection Circuits Horizontal and Pincushion Note: Reference Figure 4-1 during circuit descriptions. Horizontal Theory The Horizontal Drive pulse (HD) is developed inside IC001 (OneChip) and output on IC001/pin 50. The HD is first amplified by drive transistor Q502 and then applied to T505. T505 couples the signal to the Horizontal output transistor Q505 or Q506 depending on model;...
  • Page 19 4. Deflection Circuits Troubleshooting There are three defects can cause the Standby/Timer LED to flash in groups of four: 1) +13V and/or –13V from FBT/pins 9 and 7 respectively are missing on Vertical Drive IC545. 2) Vertical Drive IC545 is defective (no reference pulses output on IC545/pin 3 to IC001/pin 78). 3) No Horizontal Drive pulse to FBT.

  • Page 20: Horizontal Deflection And Pincushion Circuits

    4. Deflection Circuits If the drive signals check OK, check the signal output on IC545/pin 3 (Ref. Signal). This signal should appear as shown in Waveform 4-8. This pulse is used to tell the system control in IC001/pin 78 that the vertical drive is working properly.
  • Page 21 4. Deflection Circuits T585 FLYBACK Q505 OR R503 Q506 +135V FOCUS 200V R505 IC001 C501 T505 +13V +135V R506 -13V Q502 D505 +135V R511 D506 CN515 C525 C526 D526 R525 C511 L525 Q522 IC565 R535 HORIZ. LINEARITY +13V CIRCUIT R533 D514 D515 Q521...
  • Page 22 4. Deflection Circuits Q502 T505 H-OUT M BOARD Q505 OR Q506 CN302 1.89V H-OUT 3.3V 9V IC001 FIGURE 4-4 - M BOARD CONNECTIONS 4.4CTV30 4/2/02 Troubleshooting NOTE: The presence of HV for even a short time is an indication that the horizontal circuit is functioning properly and the problem is in the vertical deflection circuit.
  • Page 23 4. Deflection Circuits If all the above tests are passed then either the Horizontal Output transistor or the FBT is defective. The Horizontal Output transistor can be checked using an Ohmmeter. The Base-Emitter junction should check the same as a normal BJT. When checking the Collector-Emitter junction, note that a diode is connected in parallel (the C-E junction will test the same as the B-E junction).
  • Page 24 4. Deflection Circuits Troubleshooting 1) Symptom: Picture is compressed horizontally with Pincushion distortion Check: a) Missing HP on IC561/pin 3 b) Missing complete pincushion waveform at anode D505 (Trace from IC561/pin 1 to D505 anode) c) D505 or D506 open circuit 2) Symptom: Picture expanded horizontally with Pincushion distortion.
  • Page 25 5. Protection Circuits Chapter 5 - Protection Circuits Overview Note: Reference figure 5-1 during the following overview discussion: IC545 +/- 13V VERTICAL O-LED D001 IC001 STBY DRIVE CHIP LATCH HV PROTECT Q573 IC561 FLYBACK Q572 AC RELAY HORIZONTAL RY600 Q590 OUTPUT Q505 OR Q506 +135V (B+)
  • Page 26 5. Protection Circuits In this section, the protection circuits contained on the BA-6 chassis will be discussed. Table 5-1 below is a quick reference that shows how each protection circuit affects the BA-6 chassis when activated. Table 5-1 – Protection Circuits at a Glance Monitored Monitored Affected Circuit...

  • Page 27: Protection Circuits

    5. Protection Circuits Protection Circuits The four main functions monitored by the protection circuits are the Vertical deflection, Horizontal deflection, High Voltage (HV) and +135V supply (Ref. Figure 5-1 for block diagram and Figure 5-2 for circuit detail). VERTICAL & HORIZONTAL HORIZONTAL PROTECT OUTPUT...

  • Page 28: Protection Circuits

    5. Protection Circuits secondary of the FBT. With the +/- 13V missing, IC545 will not function and IC001 will detect a vertical failure and place the unit into protection mode. +135 Supply (OVP and OCP) Note: Reference Figure 5-2 during the following discussion: The +135V supply OVP is simply zener diode D614.
  • Page 29 6. Video/RGB Chapter 6 - Video/RGB Overview FROM PIN 11 TUNER T585 FLYBACK S-VIDEO IC001 A BOARD VIDEO 1 CHIP VIDEO 2 VIDEO 3 CN301 CV BOARD J1751 IC1751 FIGURE 6-1 - VIDEO / RGB BLOCK 6.1CTV30 2/27/02 Note: Reference Figure 6-1 during the following discussion: All video source inputs (Tuner, S-Video and Video 1, 2, 3) are connected directly to the “OneChip”...

  • Page 30: Video/Rgb

    6. Video/RGB Video/RGB FLYBACK T585 A BOARD IC001 ONE CHIP TUNER DET-OUT MAIN-TV-IN Y-IN S-VIDEO 1.89V C-IN ABL-ACL-IN +13.5V VIDEO 1-IN VIDEO 1 VIDEO 2 VIDEO 2-IN R580 Y-IN R584 VIDEO 3 U-IN IK-AKB-IN D351 V-IN R585 3.3V R583 R319 R317 R315 Q303...

  • Page 31: Video/Rgb

    6. Video/RGB Note: Reference Figures 6-2 and 6-3 during the following discussion: A more detailed diagram of the Video and RGB path is shown in Figure 6-2. The video source is input directly to IC001 on the designated input port. IC001 performs all video processing internally and outputs RGB on IC001/ pins 31, 33 and 35 respectively (ref.
  • Page 32 6. Video/RGB IK Pulse Waveform Diagrams NOTE: Waveforms 6-4, 6-5, 6-6, 6-7, and 6-8 are a sequence of pictures illustrating where the IK are found, and how they appear on an oscilloscope display. Reference these Waveforms during the following IK_AKB circuit description.
  • Page 33 6. Video/RGB Oscilloscope Settings: 0.2V µ CRT Drive Pulse IK Pulses to CRTs (IC001/Pins 31, 33 & 35) Waveform 6-6 Oscilloscope Settings: 0.5V 0.2 s µ IK Feedback Pulses Closeup of IK Feedback Pulses IK Feedback Pulses in Vertical Blanking (CN301/Pin 2) Waveform 6-8 Waveform 6-7 Troubleshooting...
  • Page 34 6. Video/RGB If there is a defective cathode, the voltage at that cathode will be less then 130V. For the extreme case of an open cathode, the voltage will be 116V. The other good cathode voltages will be normal at 150V. What’s happening is the IK-AKB circuit is trying to compensate for the defective cathode by driving it harder (116V) then the other cathodes (150V).

  • Page 35: Audio

    7. Audio Chapter 7 - Audio Overview There are two different audio circuits depending on the model. Table 7-1 indicates which audio IC is used in each model. Table 7-1 Model Audio Circuit IC’s Features KV13FS100 IC401 & IC404 Input Switching Only KV13FS110 IC401&...
  • Page 36 7. Audio Figure 7-1 illustrates the audio circuit configuration for models KV-20FV300 and KV-24FV300. Because these two models have the feature of WOW, SRS and Simulated Stereo, IC400 is installed. The Right and Left inputs from each audio jack and Tuner are connected to IC400 as illustrated in Figure 7-1. All audio functions are performed inside IC400.
  • Page 37 The next diagram (Figure 7-3) shows the audio circuit configuration for the models KV-20FS100, KV-24FS100 and KV-13FS100/110 where IC400 audio processor is not installed. These models use IC401 for stereo audio input switching and IC404 for volume control and audio amplification. IC401/pins 2 and 4 (switching inputs) are controlled using a simple two binary signal from IC001/pins 67 and 68.

  • Page 38: Troubleshooting

    7. Audio Troubleshooting No Audio from IC404 (inputs OK): check the following: • PS401 for open condition • Voltage at IC404/pin 5 (~3V). If voltage is low or missing check, Q411 and Q435 for shorted condition. • Voltage at IC404/pin 9. If this voltage goes below 0.5V, the unit will mute. This is true even when IC400 audio processor is installed.

  • Page 39: Self-Diagnostics

    8. Self-Diagnostics Chapter 8 - Self-Diagnostics Power ON When the unit is plugged into an AC outlet, power is supplied to the Standby Power Supply and the unit is in Standby Mode. The Standby Power Supply powers-up the System Control, EEPROM, IR Remote sensor and Reset circuits (reference Power Supply section for details).

  • Page 40: Failure History Display

    8. Self-Diagnostics NOTE: if a B+ over current condition is detected, the vertical deflection output stops simultaneously. The symptom that is diagnosed first by System Control is displayed on the history screen. The unit must be disconnected from AC power to stop Standby/Timer LED flashing and reset unit. Failure History Display Reading Results The History display can be accessed by quickly pressing the following buttons on the remote control sequentially...
  • Page 41 Sony Electronics Sony Electronics Inc. EMCS - A Service Company 1 Sony Drive CTV300402 04/04/02 Park Ridge, New Jersey 07656 All Rights Reserved ©2002...

This manual is also suitable for:

Kv-13fs110Kv-20fs100Kv-24fs100Kv-20fv300Kv-24fv300

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