Sony KV-32XBR400 Training Manual
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Sony KV-32XBR400 Training Manual

Direct view television, circuit description and troubleshooting
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  • Page 2 Training Manual ® Direct View Television DX-1A Chassis Models: KV-32XBR400 KV-36XBR400 Circuit Description and Troubleshooting Course: DTV-02...

  • Page 3: Table Of Contents

    Table of Contents Introduction Testing Horizontal Drive / H Pincushion Correction / DTV Converter Boxes Filament Voltage USA Analog Transmission Format Basic Horizontal Drive Circuit USA Digital Transmission Formats PMW Circuit Digital TV (DTV) Converter Boxes Filament Voltage New Features G2 Circuit Overall Block HV Converter Block...
  • Page 4 Adjustment Appendix Picture Tilt Correction Service Mode Display Vertical Pincushion Correction Circuit Digital Satellite System Converter Box DTV Set Top Box Concept IEEE-1394 Adjustment DX-1A Chassis Assembly Vertical Process Board Replacement viii Audio Block Diagram HV Adj. check Bulletin 492 Features Signal Path Self Diagnostic Block...
  • Page 5 NOTES...

  • Page 6: Introduction

    The power consumption and self-diagnostics remain the same as other This model KV32XBR400 is a high resolution TV designed to bridge the Sony TVs. This set’s change to high-resolution video results in circuitry gap between the current analog TV sets and the forthcoming high defini- changes to the video processing, horizontal frequency (fixed at 33.75kHz),...

  • Page 7: Dtv Converter Boxes

    picture is not seen and the picture is normally over-scanned (larger than DTV Converter Boxes the TV screen). Therefore, the TV resolution is said to be “480” (horizon- tal) lines instead of the transmitted 525 lines. In order to compare converter box specifications you need to understand how resolution is measured in the interlaced and progressive scan meth- ods.
  • Page 8 Model DTC-100 VGA 1080i/540p Panasonic TU-HDST50 720p TU-HDS20 Pioneer SH-DO7 1080i *** SH-D505 1080i/ 720p/480p Mitsubishi SR-HD400 SR-HD500 Sony DTR-HD1 phono 1080i SAT-HD100 VGA 1080i/480p Sharp TUDTV1000 VGA/ 1080i/480p Proscan PSHD105 VGA 1080i/540p Samsung SIRT100 1080i/480p * DTV must be 8VSB modulation (like terrestrial ATSC DTV transmissions)

  • Page 9: Usa Digital Transmission Formats

    USA Digital Transmission Formats 30I Picture Format There are 18 digital transmission formats approved by the ATSC (Ad- = 2/60 vanced Television Standards Committee) in the USA. The first six offer 1/60 sec. 1/60 sec. second or HD (high definition/resolution) signals in a 16x9 aspect ratio. The remain- Field 1 Field 2 1/30...
  • Page 10 RF inputs: A few converter boxes can receive digital satellite signals. This combina- Channels 1-99 Digital TV tion of DTV and satellite decoding in one box is feasible because the decoding circuitry is similar. It is uncertain if these converter boxes can The TV converter boxes listed in the chart all decode DTV signals from off decode the new satellite high definition DTV signals.
  • Page 11 4-wire cable. More about the IEEE-1394 format is found in the appendix of this book. Dolby is a registered trademark of Dolby laboratories. Fire Wire is a trademark of Apple Computer Inc. i.LINK is a trademark of Sony.
  • Page 12 NOTES...

  • Page 13: New Features

    The owner’s password can be cleared with the master pass- word 4357 (“HELP”). The owner’s password can also be reset from the The Sony flat screen picture tube is a full flat screen inside and outside. service mode by pressing 8, then enter.
  • Page 14 NOTES...

  • Page 15: Overall Block

    To keep the lines at the left and right of the screen straight, an east/west In some Sony TV sets, there is no V Drive output the Y/C IC until data and (E/W) H pincushion correction signal is made in IC201. The E/W signal is clock are input.
  • Page 16 TUNERS IC3303/ MAIN IC3048 IC3408 VIDEO 1-4 DRC/MID IC3414 A BD. +200V SYNC SYNC 480i 480p (HOT) VIDEO 5-6 B BD. 1080i C BD. IC201 IC9001-3 H DRIVE = 33.75kHz DRIVE CATHODES VPIN FILAMENT COIL ON V DRIVE 200V Q5026-8, C BD.
  • Page 17 Convergence of the Three Beams High Resolution Input - Video inputs 5 and 6 are for Y, Pr and Pb compo- nent signals only. They can be standard (480i) or high resolution (480p or The good news is that the complex convergence signal is made in one 1080i).
  • Page 18 TUNERS IC3303/ MAIN IC3048 IC3408 VIDEO 1-4 DRC/MID IC3414 A BD. +200V SYNC SYNC 480i 480p (HOT) VIDEO 5-6 B BD. 1080i C BD. IC201 IC9001-3 H DRIVE = 33.75kHz DRIVE CATHODES VPIN FILAMENT COIL ON V DRIVE 200V Q5026-8, C BD.

  • Page 19: Sd To Hd Conversion Concept

    number of lines in the total picture. The i suffix identifies an interlaced SD to HD Conversion Concept picture. Since the picture is interlaced, there is only half the number of lines presented in a single scan. In this case, there are 240 lines dis- This TV has features designed to bridge the gap between the current played in a single scan.
  • Page 20 B BD. A BD. Yo -7 Cr-7 TUNER/ Y, Pb, Cb-7 VIDEO 480i IC3408, C BD. IC3303 IC3410 IC3048 STANDARD MID-XA CIRCUIT NTSC H + V CIRCUIT RESOLUTION CATHODES H + V DATA/CLK Y, Pb, DATA/ SYNC CONT IC3603 IC201 480i IC9001-3 VIDEO...
  • Page 21 The MID circuit centers the picture by adding 30 blank lines above and below the picture (60 lines total). This simple method permits the TV to Progressive Scan - In this example of the progressive scan video pro- keep the vertical frequency at 60Hz. Therefore the MID circuit increases cessing, an NTSC still picture signal is input from a DVD player (in pause).
  • Page 22 B BD. A BD. Yo -7 Cr-7 TUNER/ Y, Pb, Cb-7 VIDEO 480i IC3408, C BD. IC3303 IC3410 IC3048 STANDARD MID-XA CIRCUIT NTSC H + V CIRCUIT RESOLUTION CATHODES H + V DATA/CLK Y, Pb, DATA/ SYNC CONT IC3603 IC201 480i IC9001-3 VIDEO...
  • Page 23 High Definition Video Input 1080i Picture Process The Video 5 and 6 inputs can be standard or high definition format sig- The 1080i-video format is a high-resolution picture with a 16:9 aspect nals. The MID circuit distinguishes the video format by their horizontal ratio at a 33.75kHz horizontal frequency.
  • Page 24 B BD. A BD. Yo -7 Cr-7 TUNER/ Y, Pb, Cb-7 VIDEO 480i IC3408, C BD. IC3303 IC3410 IC3048 STANDARD MID-XA CIRCUIT NTSC H + V CIRCUIT RESOLUTION CATHODES H + V DATA/CLK Y, Pb, DATA/ SYNC CONT IC3603 IC201 480i IC9001-3 VIDEO...

  • Page 25: Video Block

    Video Block 3D Comb Filter - Color Bar input Channel Name Location Comments This Video Block Diagram will show the video signal processing as it Input CN3201/pin 1 2Vp-p changes from an NTSC composite video signal to separate Y & C, com- Y Output CN3201/pin 3 2Vp-p...
  • Page 26 CN3201/ BC BOARD B BD. CN3500 Y,Pb,Pr CN003/ IC3501 (IC3110) COMPOSITE/ CN3203 3D COMB MAIN FILTER TUNER MAIN IC3201 CN3500/ TUNER (S VIDEO) Y,Pb,Pr IC3003 CN3201 IC3002 A BD. SW - 1 DRC CD MAIN COMB SEL/ SUB OUT Y,Pb,Pr VIDEO 1 - 4 SYNC-SEL DRC - MF...
  • Page 27 Digital Reality Creation To summarize the MID functions, 60 lines are added to the picture by the MID-XA main signal processor IC3408 when the horizontal frequency is This 3 generation device has three main purposes: not 33.75kHz. MID-uCom IC3090 instructs oscillator IC201 to reduce the •...
  • Page 28 OSD,RGB FROM MAIN uCOM MAIN IC701 Y,Pb,Pr FROM H DRIVE YO-7 YO-7 IC3002 V DRIVE (YCT- CRO-7 CRO7 IC3410 SEL) C BD. IC3303 DRC - MF CBO-7 HD,VD IC3408 SYNC MID - XA FROM CBO-7 IC3004 IC201 TO CRT Y,Pb,Cr (DRC-SYN- CN3203/ SEL)
  • Page 29 (vertical blanking area of ch 1) is still at 3Vp-p (power On level). The Component Video leaving the B board - Color Bar input normal green signal (ch 2) shows the IK signal is reduced to 1.8Vp-p because the IK loop is complete. The last waveform (ch 3) does not show c h 1 the missing red IK signal because of sampling errors in the digital scope c h 2...
  • Page 30 OSD,RGB FROM MAIN uCOM MAIN IC701 Y,Pb,Pr FROM H DRIVE YO-7 YO-7 IC3002 V DRIVE (YCT- CRO-7 CRO7 IC3410 SEL) C BD. IC3303 DRC - MF CBO-7 HD,VD IC3408 SYNC MID - XA FROM CBO-7 IC3004 IC201 TO CRT Y,Pb,Cr (DRC-SYN- CN3203/ SEL)

  • Page 31: Picture With Picture

    5 or 6 is selected and a 480p or 1080i signal is The picture with picture feature in the Sony model KV32XBR400 and detected, the main picture moves to the right. There is no swap button to 36XBR400 TVs displays two signals side by side.
  • Page 32 High Resolution Input If video 5 or 6 inputs were selected, the MID circuit measures the signal’s The right 480i main picture will come from the tuner or video 1-4 signals horizontal frequency to identify the video signal. If the frequency is higher along the top 480i path through the DRC-MF IC3303.

  • Page 33: Power On Block

    Primary & Secondary Power Supplies Power ON Block Before power ON can occur, the front panel master ON/OFF button (S01 on the HA board) must be pressed in. This latching switch behind the Power Supplies button supplies the AC relay (RY6501) with standby 7V. Pressing the switch again would unlatch the switch and the set would shut OFF.
  • Page 34 STANDBY 5V STANDBY STANDBY 7V SOURCE IC6010 SET 9V P.S. F6001 STANDBY 15V SET 5V IC6007 SOURCE SET 3.3V IC6003 DEGAUSSING UNREG. STANDBY COIL CIRCUIT STANDBY 7V STANDBY 15V COIL IC6001 D721 IC701 PRIMARY D722 RELAY MAIN uCOM Q710 POWER SUPPLY S 01 MAIN C724...

  • Page 35: Primary Power Supply

    into pin 14. Internal pulses from IC6001/pin 14 add to D6003’s DC volt- Primary Power Supply age, producing the boost voltage at Vb pin 14. This boost voltage is approximately +10V above the reference voltage at IC6001/pin 15 and The primary power supply on the A board consists of three parts: used internally to serve as the B+ for the top internal drivers that amplify 1.
  • Page 36 D6012 T6003 A BD. UNREG. 5V SOURCE R6606 0.47 OHMS RECT.+ 340VDC D6013 FROM D6530 UNREG. 11V R6059 R6007 (D BD.) SOURCE PRE 15V (D R6008 Q6008 BD.) D6009 R6002 R6009 R6010 D6005 160V SENSE IC6001 DRIVER Q6007 R6011 MCZ3001D D6011 UNREG.

  • Page 37: Testing

    In the following scope shot both drive outputs from IC6001/pins 12 and 16 Hot ground is at CN6501/pin 6 (black wire). are shown. The outputs are complementary, the duty cycle is 50% and the frequency has dropped down from 200kHz to about 85kHz. Oscillator Output Operation ch1 : pkpk= 3 2 5 V The details of how the oscillator develops output voltage in T6003 are...
  • Page 38 D6012 T6003 A BD. UNREG. 5V SOURCE R6606 0.47 OHMS RECT.+ 340VDC D6013 FROM D6530 UNREG. 11V R6059 R6007 (D BD.) SOURCE PRE 15V (D R6008 Q6008 BD.) D6009 R6002 R6009 R6010 D6005 160V SENSE IC6001 DRIVER Q6007 R6011 MCZ3001D D6011 UNREG.

  • Page 39: Secondary Power Supply

    Regulation Secondary Power Supply The +135V line to the Horizontal Output stage is fed back to IC6501 for The Primary and Secondary power supplies are similar because they use regulation of the secondary power supply. Error Control IC6503 and Optical the same IC and driver/output stage.
  • Page 40 T6501 D6530 R6526 AU + 24 0.1 OHM TO AUDIO D6516 R6646 CONNECTION +200V D6515 PRIMARY Q6507 SOURCE POWER D6517 TO HV R6513 SUPPLY VD VGH SOURCE Q6503 D6513 R6533 R6598 SENSE R6504 135V SOURCE Q6506 R6517 R6552 STANDBY 5V - 15V SOURCE IC6501...

  • Page 41: Horizontal Drive / H Pincushion Correction / Filament Voltage

    quency, but the MID circuit stored the video and output the signal at a Horizontal Drive / H Pincushion Correc- new H freq. of 33.75kHz, independent of the source. PM3394, FLUKE & PHILIPS tion / Filament Voltage Overview The purpose of the horizontal drive circuit is to manufacture a magnetic field that is used to sweep the CRT’s electron beam from left to right on the screen.
  • Page 42 X201 MAIN CN203/ Q5035, MID HS VIDEO IC201 CN5505 Q5036, MAIN IC3413/4 OUTPUT Y/C CRT Q5026-7 SYNC SW. (C BD.) DRIVE H DRIVE (B BD.) Q211 CXA2150Q A BD. Q5016 CN201/ AFC-PLS 200V DRIVE CN5503 Q5030/C REG. H. PROT D5013 IC701/44 Y/C (A BC.) 135V...

  • Page 43: Filament Voltage

    Regulator Filament Voltage The PWM circuit regulates +135Vdc from the secondary power supply There are two sources of filament voltage. When the set is turned ON, down to 102Vdc. It is driven by H drive pulses from Drivers Q5026-7. unregulated 7V from the primary power supply (A board) is reduced by These pulses are amplified and output to HOT T5001/pin 1.
  • Page 44 X201 MAIN CN203/ Q5035, MID HS VIDEO IC201 CN5505 Q5036, MAIN IC3413/4 OUTPUT Y/C CRT Q5026-7 SYNC SW. (C BD.) DRIVE H DRIVE (B BD.) Q211 CXA2150Q A BD. Q5016 CN201/ AFC-PLS 200V DRIVE CN5503 Q5030/C REG. H. PROT D5013 IC701/44 Y/C (A BC.) 135V...

  • Page 45: G2 Circuit

    G2 Circuit G2 (RV9002) Voltage Range RV9002 Position G2 Voltage 292.4Vdc Operation Normal 484Vdc The G2 circuit controls the voltage to the screen grid of the CRT. The higher the voltage the more electrons are accelerated in the gun struc- 2/3 CW 590Vdc is maximum before shutdown ture, resulting in a brighter picture.
  • Page 46 R9062 R9056 VOLTAGE 100k R9055 R9085 R9064 R9084 100k 489VDC FROM HOT R9063 T5001/6 484VDC 100k (D BD.) 180k OHMS 907VDC R9077 C9032 1/2W EACH GRID D9013 Q9014 G2-DUMP R9067 D9014 G2-REF C BD. PROT R9076 D9015 PROT R9005 Q9008 D9003 R9004 10.4V...

  • Page 47: Hv Converter Block

    Protection / Shutdown HV Converter Block There are two protection circuits for the HV stage. The first circuit shuts This HV Converter is similar to the two low voltage power supplies be- down the HV oscillator if the HV is excessive (without affecting the sound). cause they have the same MCZ3001D ICs.
  • Page 48 SHUTDOWN LATCH Q8009 +200V D8003 Q6530,Q6532 (FROM D BD. SECONDARY POWER R8053- SUPPLY) R8055 HV TO SENSE CONVERTER PICTURE TUBE IC8002 TRANSISTORS Q8002 (Q5030/C HV DRIVER Q8001 FLYBACK FOCUS H OUT) MCZ3001D VOLTAGE START R8056 (PICTURE C8004 TUBE) CONV. +15V (SEC P.S.) IC8003, IC8004 Q8022-3, Q8018...

  • Page 49: Testing

    The procedure is as follows: Converter IC8002 Voltages 1. Replace RV8001, RV8002, and RV8003 (they are epoxyed). 2. Turn RV8001 and RV8003 both CCW from the top of the D board. Volts 1.63 1.75 2.25 2.47 4.56 14.7 3. Turn the set ON with a black screen (HV unloaded). 4.
  • Page 50 SHUTDOWN LATCH Q8009 +200V D8003 Q6530,Q6532 (FROM D BD. SECONDARY POWER R8053- SUPPLY) R8055 HV TO SENSE CONVERTER PICTURE TUBE IC8002 TRANSISTORS Q8002 (Q5030/C HV DRIVER Q8001 FLYBACK FOCUS H OUT) MCZ3001D VOLTAGE START R8056 (PICTURE C8004 TUBE) CONV. +15V (SEC P.S.) IC8003, IC8004 Q8022-3, Q8018...

  • Page 51: Communications

    nected to both memories in parallel. The first group of communications Communications goes to IC707. IC5501 is hard wired differently at pins 2 and 3 to accept the second communications group from IC701. There are three communications networks used in this DX-1A TV chas- sis.
  • Page 52 STBY+5V R834 A BD. Q717 RESET IC701 MAIN uCOM IC707 CLK 0 D BD. DAT 0 DAT 1 CLK 1 CN702/ CN6504 R829 IC5501 STBY+5V DATA STBY+5V R827 CN703/ CN6506 STBY+5V IIC BUS IC201Y/C IC7001 MAIN IC5511 AUDIO TUNER TUNER DQP CONT.
  • Page 53 PM3394, FL UK E & PHILIPS Network 1 Communications - TV Channel 7 displayed c h1 Scope Channel Name Location Voltage c h2 Clock CN706/pin 7 5Vp-p c h3 Data CN706/pin 8 5Vp-p Time base = 5msec/div. Communications Network 2 Communications network 2 is only used between three ICs on the B board.
  • Page 54 STBY+5V R834 A BD. Q717 RESET IC701 MAIN uCOM IC707 CLK 0 D BD. DAT 0 DAT 1 CLK 1 CN702/ CN6504 R829 IC5501 STBY+5V DATA STBY+5V R827 CN703/ CN6506 STBY+5V IIC BUS IC201Y/C IC7001 MAIN IC5511 AUDIO TUNER TUNER DQP CONT.

  • Page 55: Dynamic Focus Block

    This means the focus point must be moved up at the left and right sides to Dynamic Focus Block meet the flat picture tube screen. Static Focus Concept Dynamic Focus Concept An electron beam within the picture tube consists of many electrons that The job of the dynamic focus circuit is to change the focus points to meet are slowed down by the focus electrode.
  • Page 56 T8001 FLYBACK TV SCREEN D BD. FOCUS CONV VOLTAGE IC5502 Q5508, OP AMP Q5509 DRIVERS DF FOCUS T8002 CORRECTION R8082 C5509 Q8018 AFC-PLS Q5501 H OUT OUTPUT Q5030/C Q8022, C8058 Q8023 L8005 DRIVERS IC5502 DATA D8017 OP AMP IC5511 DAC1 +135V Q8015 CONTROL...
  • Page 57 Dynamic Focus Signals DF Drive Signals Channel Name Location Voltage Channel Name Location Voltage DF Drive signal T8002//pin 3 400Vp-p AFC-PLS IC5511/pin 19 10Vp-p Modulated power supply T8002//pin 1 140Vp-p Dynamic Drive IC5511/pin 11 0.3Vp-p AFC-PLS (H fly pulses) IC5511/pin 19 10Vp-p Delayed DF Drive Q8018/Base...
  • Page 58 T8001 FLYBACK TV SCREEN D BD. FOCUS CONV VOLTAGE IC5502 Q5508, OP AMP Q5509 DRIVERS DF FOCUS T8002 CORRECTION R8082 C5509 Q8018 AFC-PLS Q5501 H OUT OUTPUT Q5030/C Q8022, C8058 Q8023 L8005 DRIVERS IC5502 DATA D8017 OP AMP IC5511 DAC1 +135V Q8015 CONTROL...

  • Page 59: Adjustment

    Service mode item “DFON” turns OFF the switching voltage from IC5511/ DF Switching Signals pin 14. This can be seen in the following chart that contains the DC Channel Name Location Voltage voltages of the output stage. AFC-PLS IC5511/pin 19 10Vp-p DF Output Stage Voltages SWO (Switch control)
  • Page 60 T8001 FLYBACK TV SCREEN D BD. FOCUS CONV VOLTAGE IC5502 Q5508, OP AMP Q5509 DRIVERS DF FOCUS T8002 CORRECTION R8082 C5509 Q8018 AFC-PLS Q5501 H OUT OUTPUT Q5030/C Q8022, C8058 Q8023 L8005 DRIVERS IC5502 DATA D8017 OP AMP IC5511 DAC1 +135V Q8015 CONTROL...

  • Page 61: Dqp Circuit Corner Focus Correction

    DQP Circuit Corner Focus Correction DQP-- Signal Processing Channel Name Location Voltage Focus at the sides of a Wega flat screen picture tube was accomplished DQP negative signal IC5511/pin 4 0.4Vp-p with the Dynamic Focus Circuitry. Focus at the corners is corrected using Amplified DQP- signal CN5509/pin 6 130Vp-p...
  • Page 62 IC5506 L5505 R5588 AFC-PLS DQP-AMP1 PARA 1 Q5030/C LA6500 R5577 C5548 VTIM 180k 0.47 CN5503/2 IC201/54 IC5511 POWER ON R5056 MAIN INHIBIT CONTROLLER +12V OHMS Q5008 Q5505 CXA2026A C5027 IIC BUS FROM IC701/28,31 IC5504 L5504 PARA DQP-AMP2 LA6500 R5554 CN5509 R5564 C5531 D5515...
  • Page 63 P M 3 3 9 4 , F L U K E & P H I L I P S c h 1 c h 2 C H 1 ! 5 0 . 0 V ~ C H 2 ! 1 0 0 V = M T B 1 0 .
  • Page 64 IC5506 L5505 R5588 AFC-PLS DQP-AMP1 PARA 1 Q5030/C LA6500 R5577 C5548 VTIM 180k 0.47 CN5503/2 IC201/54 IC5511 POWER ON R5056 MAIN INHIBIT CONTROLLER +12V OHMS Q5008 Q5505 CXA2026A C5027 IIC BUS FROM IC701/28,31 IC5504 L5504 PARA DQP-AMP2 LA6500 R5554 CN5509 R5564 C5531 D5515...

  • Page 65: Convergence Circuit

    Convergence Circuit Concept The purpose of the convergence circuit is to create a dynamic signal that is applied to the convergence (CY) winding within the main yoke. The convergence winding is positioned so the dynamic signal will move one or two electron beams more than the third.
  • Page 66 D BD. VTIM IC5515 IC201/54 STK390-910 CY PART AFC-PLS 5V REF. OF MAIN Q5030/C IC5513 YOKE R5693 H STAT DY-CONV CXA8070AP DATA CLOCK R5699 V STAT CN5510 R5648 R5711 R5712 MAIN +12V +15V -15V SOURCE IC5003 +15V 12V REG SERVICE MODE CATEGORY D - CONV 9 ADJUSTMENT ITEMS CONVERGENCE CIRCUIT...

  • Page 67: Picture Tilt Correction

    If the yoke were a little off center, the slight tilt of the picture would also be  noticeable. A picture tilt circuit was added to Sony flat screen Wega TVs to correct for this tilt. The user can perform Tilt Correction from the setup menu.
  • Page 68 N/S COIL MAIN R5670 +12V PICTURE A BD TUBE R5669 REAR CN5509/ LA6500 IC201 Y/C CN9102 CRT DRIVE V SAW 1 R5678 YOKE CXA2150Q CN201/ CN5503 0.25V COIL W BD. R5679 38.2 C5601 OHMS DATA CLK1 R5613 -12V CLK O IC701 IC707 R5688...

  • Page 69: Vertical Pincushion Correction Circuit

    Vertical Pincushion Correction Circuit Vertical Pincushion Correction Signal Channel Name Location Voltage VSAWO CN201/pin 6 0.3Vp-p Concept Pincushion CN5509/pin 2 0.5Vp-p = main waveform The geometry on a flat screen picture tube is more critical than that on a Output 3.5Vp-p including spike curved picture tube.
  • Page 70 MAIN R5698 A BD. R5697 IC5514 V PIN OUT LA6500 CN5509/ IC201 Y/C CN9102 V PIN + CRT DRIVE V SAW O R5700 CXA2150Q CN201/ 0.25V CN5503 W BD. R5615 C5616 DATA CLK1 R5710 -12V CLK O IC701 IC707 SLIGHT MAIN uCOM V PIN - R5704...

  • Page 71: Vertical Process

    The waveforms of this stage show the basic operation from sync input Vertical Process (ch1) through drive (ch 2) to feedback (ch 3 & 4). The vertical sync source selection on the B board is new, but the oscillator c h 3 : d c = 2 6 .2 m V and output stage is traditional.
  • Page 72 V SYNC V SYNC FOR PROGRESSIVE OSD MAIN V SYNC FROM uCOM IC3408 IC701/97 VTIM (INTERLACE) IC3413 FROM IC3048/15 YCT MAIN MAIN SYNC SW A BD. SN74LV CN3205/ SEL V OUT(SUB PIX) 4053A CN003 FROM IC3001/23 COMP J-F SYNC SEL IC3090/10 MID uCOM VFB TO IC201...
  • Page 73 P M 3 3 9 4 , F L U K E & P H IL IP S To keep the information in the vertical blanking area hidden in the vertical c h 2 : p k p k = 1 .5 5 V area above the picture, the vertical drive waveform from IC201 is altered.
  • Page 74 V SYNC V SYNC FOR PROGRESSIVE OSD MAIN V SYNC FROM uCOM IC3408 IC701/97 VTIM (INTERLACE) IC3413 FROM IC3048/15 YCT MAIN MAIN SYNC SW A BD. SN74LV CN3205/ SEL V OUT(SUB PIX) 4053A CN003 FROM IC3001/23 COMP J-F SYNC SEL IC3090/10 MID uCOM VFB TO IC201...

  • Page 75: Audio Block Diagram

    The output of IC3201 is sent to IC3202. IC3202 is an analog switch that Audio Block Diagram only handles audio. The input choices are: • Main signal Features • Sub signal The XBR400 audio section features: • Video 5 XBR400 Series Audio Section Features (Menu selection) •...
  • Page 76 SPEAKERS LINE OUT IC7007 A BD. BUFFER NJM4558 MONITOR CN7008 IC7002 INPUTS: IC3203 POWER AMP BUFFER TA8216 MAIN NJM4558 (HIGH PASS) IC3201 ANALOG AUDIO 1 IC7006 MAIN AUDIO 2 (A/V) LOW PASS IC3202 CXA2069 NJM4558 AUDIO 3 ANALOG IC7001 AUDIO 4 AUDIO AUDIO AUDIO 5...

  • Page 77: Self Diagnostic Block

    OSD Diagnostics Self Diagnostic Block In addition to the blinking Stby LED, the Main uCom records the number The Self-Diagnostic circuit is a program of the Main uCom IC on the A of times the failure occurred. This is useful when the user complains of board.
  • Page 78 UNREG. UNREG. STANDBY D BD. C BD. IC6007 5V REG. D6017 +135V LOW B D6018 SET 5V TO CRT CN202/ CN9001 +135V IK SIGNAL WHITE BAL DATA/ FAILURE IC201 IC701 MAIN V OUT uCOM CN6506/ LOSS POWER OFF DRIVE Q8009 CN703 H OUT LATCH...

  • Page 79: Self Diagnostic Circuit

    by monitoring CN6506/pin 8 as you power ON. If the voltage does not Self Diagnostic Circuit rise above 0v at power ON, the problem is not on the +135V line. If the voltage reaches 1.2V, disconnect the V board and try again. If the CN6506/ When the TV shuts down and the standby LED blinks, the Main uCom pin 8 voltage still rises to 1.2V, test the H Output and PWM transistors or IC701 knows which failure activated the shutdown.
  • Page 80 UNREG.7V D BD. A BD. UNREG.7V R6598 R6015 (PRI P.S.) +135V +135V SOURCE (SEC P.S.) D6014 D6018 R6591 R6019 R6593 IC6007 STBY 5V D6017 5V REG. Q6524 Q6520, 4.7V CN6506/ Q6521 CN703 SET 5V SOURCE R6612 IC701 MAIN R6602 uCOM +15V IC6506 STANDBY...
  • Page 81 Then use your scope to examine the signal to the cathode. Go to CN9001/ Q214 is turned on for five seconds at power ON to permit comparator pins 1, 3 and 5 to see if there is a signal coming into the C board. Next IC5007 time to stabilize.
  • Page 82 +12V A BD. +12V C BD. CN202/ R9006 CN9001 Q9001 R9068 R9036 C219 R9065 0.068 FROM R9008 D9002 R9041 IC9001/5, R9012 IC9002/5, IC9003/5 DATO R9042 FROM IC201 MAIN Y/C, MAIN uCOM CLKO IC701 D BD. DRIVE L5001 IC5004 CN5002 R5599 V OUT R250 R249...

  • Page 83: Appendix

    APPENDIX...

  • Page 84: Service Mode Display

    Service Service Group Data Video 5 Service Item Service Mode Access (same as other Sony TVs): 480i Point the remote control at the TV and press the following buttons: Display, 5, Volume +, Power ON. WLS = 0 Display The service mode display has more information.

  • Page 85: Digital Satellite System Converter Box

    S Video 12.2 - 12.7GHz Video Decoder NTSC Encoder MPEG 2 Composite Video video DSS Dish Ch 3/4 RF Modulator Output Transport Tuner audio video Demultiplexer IEEE 1394 950-1450Hz Interface (i-LINK) audio Analog Audio Audio Decoder SMART Dolby AC-3 card Micro Optical Out (plug in)
  • Page 86 Antenna Composite Video VIDEO Decompression S Video MPEG 2 Tuner VSB Demodulator Componet Video (Y, Pb, Pr) Format Decoder / Down Conversion Transport Packet Analog L&R Demultiplexer AUDIO Digital Optical Cable signal Decompression Port feed Dolby AC-3 Micro DTV SET TOP BOX 9/13/00...
  • Page 87 Peer to peer communications are possible. Any device should com- IEEE-1394 municate with any other device without the need for a hub or a PC to be connected. Overview CAMCORDER CAMCORDER IEEE-1394 is high-speed digital interface that can be used by many types of products, including computers and consumer electronics.
  • Page 88 Transaction Layer – Manages asynchronous data protocols. This IDs Cleared - All previous ID information is erased. layer is also responsible for communicating between a device that is Tree ID - The device, which is the bus master, assigns each node a using IEEE 1394, such as a digital camcorder or a capture card, and specific address.
  • Page 89 , which is a Sony trademark. A standard six-wire cable is used by the PC industry as an IEEE-1394 connection. There is also a four-wire connection used by Sony and other Current Products manufacturers on digital camcorders and similar devices. The six-wire...

  • Page 90: Dx-1A Chassis Assembly

    C C C C CN9001 DX-1A CN9002 CHASSIS TO DY HV LEAD FOCUS LEAD CN9102 ] ] ] ] [ [ [ [ W W W W ASSEMBLY CN9103 Put one loop (N/S) CN9101 in HV Lead MAIN MAIN MAIN MAIN and secure with purse lock...

  • Page 91: Board Replacement

    Board Replacement Board Removal Functions Possible Failure After board replacement Symptoms Primary Power Supply Shutdown ♦ Transplant memory IC5501 containing (+200V, +135V) deflection parameters. Slide chassis assembly back away from the Sides bowing in pix tube. Protection latch circuit ♦ Adj Focus (on FBT). Remove 7 screws securing the board.
  • Page 92 Video processing and audio Loss of video, Y or C. Transplant memory IC3089 containing Twin switching. picture parameters. Remove 4 screws from the rear panel and Loss of sync to main fold it down. Closed caption/V Chip or sub pix. Pry the locks from connectors CN3202/3 DRC for line doubling while wiggling the B board away form the A...
  • Page 93 Pry out Front of TV CN3202 HA board HB board D Board A Board CN3203 Pry out B board BC board board U board U board...
  • Page 94 CONFIDENTIAL  Sony Service Company Service Bulletin National Technical Services csv-1 A Division of Sony Electronics Inc. TV Products Park Ridge, New Jersey 07656 Model: KV-32XBR400, KV-36XBR400 Date: July 27, 2000 Subject: Service Manual Correction: Safety Related Adjustments Symptom: (****) There is an error on page 23 of the preliminary service manual in the HV Service Flowchart.
  • Page 95 Dolby Digital is a trademark of Dolby Fire Wire is a trademark of Apple Computer Inc. TiVo is a registered trademark of TiVo Inc. SEL Service Company A Division of Sony Electronics Inc. 1 Sony Drive Park Ridge, New Jersey 07656 DTV021000...

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