Sony KV-XF21M83, KV-HF51P50, KV-XF51M65 Focus Adjustment, G2 Screen and White Balance Adjustments

Page 43

KV-HF51P50/XF21M80/XF21M83/XF21N90/XF51M65

RM-952

RM-952

RM-952

RM-915

RM-952

(3) Screen-corner Convergence

ba

a-d : screen-corner misconvergence

cd

Fix a Permalloy assy

b

corresponding to the

 

misconverged areas

 

a

 

 

c

d

a to d : Permalloy assembly

3-3. FOCUS ADJUSTMENT

Adjust FOCUS control on the flyback transformer for the best

focus.

FOCUS

SCREEN

FLYBACK TRANSFORMER (T503)

3-4. G2 (SCREEN) AND WHITE BALANCE

ADJUSTMENTS

1. G2 (SCREEN) ADJUSTMENT

1)Set the PICTURE to normal.

2)Put to VIDEO input mode without signals.

3)Connect R, G and B of the C5 board cathode to the oscilloscope.

4)Adjust BRIGHTNESS to obtain the cathode voltage to the value below.

5)Adjust G2 (Screen) on FBT until picture shows the point before cut-off.

175 V ±2(VDC)

0 V

2. WHITE BALANCE ADJUSTMENT

1)Set to Service Mode (Refer Section 4-1: ADJUSTMENTS WITH COMMANDER).

2)Input white raster signal.

3)Set the PICTURE to minimum.

4)Select GCT (WHB 4) and BCT (WHB 5) with [1] and [4], and adjust the level with [3] and [6] for the best white balance.

5)Set the PICTURE to maximum.

6)Select GDR (WHB 1) and BDR (WHB 2) with [1] and [4], and adjust the level with [3] and [6] for the best white balance.

7)Write into the memory by pressing [MUTING] then [0].

3. SUB BRIGHT ADJUSTMENT

1)Set to service mode.

2)Input a staircase signal of black to white from the pattern generator.

3)BRIGHTNESS .... 50%. PICTURE ............ MINIMUM

4)Select SBR (WHB7) with [1] and [4], and adjust SBR (WHB7) level with [3] and [6] so that the second stripe from the right is dimly lit.

White

second from the right

Black

– 54 –

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Contents Trinitron Color TV KV-HF51P50/XF21M80/XF21M83/XF21N90/XF51M65 Specifications KV-HF51P503D Woofer Specifications KV-XF21M80/XF21M83/XF51M65Specifications KV-XF21N90 SET-UP Adjustments Table of ContentsDiagrams DisassemblyDiagnostic Test Indicators Self Diagnostic FunctionStopping the STANDBY/TIMER Flash Display of STANDBY/TIMER Light Flash CountHandling of SELF-DIAGNOSTIC Screen Display SELF-DIAGNOSTIC Screen Display+BÊovercurrentÊ»OCP¼ SELF-DIAGNOSTIC CircuitConnect the antenna Getting StartedPreset the channels automatically Connecting optional componentsInsert the batteries Into the remote Presetting channels automatically Presetting channelsSecuring the TV Skipping program numbers Presetting channels manuallyAdditional tasks Watching the TVChanging the on-screen display language Customizing the picture and sound Setting the Wake Up timerViewing your favorite channels Adjusting the picture and sound settingsSelecting the surround mode Changing the favorite channel settingSelf-diagnosis function Blocking the channelsTroubleshooting TroubleshootingFront panel Identifying parts and controlsRemote Control Section KV-XF21M83/XF51M65 only Connecting the 3D WooferUsing the É video input jacks Connecting a camcorder/video game equipmentUsing Your New TV Presetting channels manually KV- RM-952 RM-952Red, press u on the remote Changing the on-screen display language KV-XF21M80ME Press Until Desired period of time Appears Setting the Sleep timerKV- RM-952 RM Or bilingual Selecting a stereoProgram Displaying Teletext Viewing TeletextAdditional Teletext tasks Using FastextPress A/B H until a better sound is RM-952 RM-915 RM-952 Remote Control Chassis Assy Removal HF51Rear Cover Removal Bracket Removal XF21/XF51 Service PositionReplacement of Parts XF21/XF51 HF51Terminal Bracket Removal Picture Tube Removal Degauss Coil Removal∙ HOW to Handle AN ANODE-CAP ∙ Removal of ANODE-CAP ∙ Removing ProceduresBeam Landing Section SET-UP AdjustmentsHorizontal and Vertical Static Convergence ConvergenceYCH TLV G2 Screen and White Balance Adjustments Focus AdjustmentRM-952 RM-915 Adjustments with CommanderAdjustment Method Adjustment Item Table Except KV-XF21N90 Adjustment Item Table Device Functionality Name Adjustment Item Table KV-XF21N90 Not memorized not memorized not memorized not memorized T E Item Information Board Adjustment After IC003 Memory Replacement Picture Quality Adjustments SUB Color AdjustmentSUB HUE Adjustment Bell Filter AdjustmentItem Number 00 0B Picture Distortion AdjustmentMemo IC203 MAIN. Tuvif withKV-XF51M65 only MSP3415105 106 107 Section Exploded ViewChassis for KV-HF51P50 108 109 110Semiconductors 102 103 104111 KV-HF51P50112 113 114 115 Metal Chip 116CMT,MELF 117Metal REF. NO. Part no118 119 KV-XF21M80REF. NO. Part no Description ConnectorKV-XF21M80 120Filter BLOCK, Comb Diode 121DY1 Transistor 122Transistor DTC144EKA-T146 Transistor 2SC4927-01 123124 Metal Oxide 125Thermistor THP600 1-810-961-11 THERMISTOR, Positive Tuner 126 KV-XF21M83/XF51M65127 KV-XF21M83/XF51M65128 Short KV-XF21M83 only 129Jack BLOCK, PIN 6P Short KV-XF51M65 only130 131 132 TUNER, FSS BTF-LG433 KV-XF21M83 KV-XF21M83/XF51M65 a KV-XF21N90133 Thermistor134 KV-XF21N90135 KV-XF21N90Diode UDZS-TE17-9.1B PLUG, Connector 4P Composition Circuit Block136 Diode UDZS-TE17-5137 138 139 140 141 142 H4 KV-XF21M83/XF51M65 only F C5J3/K1KV-XF21M83/XF51M65 only H4 KV-XF21M83/XF51M65143 Diode RD5.6M-B2 V1KV-XF51M65 only144 Diode RD3.3M-B2Transistor 2SC4793 V1KV-XF51M65 only VM1145 Transistor 2SA1837146 147 Remote Commander148 Sony Corporation

KV-XF21N90, KV-XF51M65, KV-XF21M83, KV-HF51P50 specifications

The Sony KV-HF51P50, KV-XF21M83, KV-XF51M65, and KV-XF21N90 are notable models within Sony's television lineup, showcasing a blend of pioneering technology and unique characteristics that cater to diverse viewer needs.

The Sony KV-HF51P50, featuring a 51-inch screen, is recognized for its exceptional display quality, leveraging Sony's Trinitron technology, which enhances color reproduction and brightness. This model supports a 4:3 aspect ratio, making it ideal for traditional television content. The KV-HF51P50 also includes a built-in comb filter that significantly improves image clarity by reducing cross-color artifacts. Additional features such as multiple input options and enhanced sound technology provide versatility and an immersive viewing experience.

The KV-XF21M83, on the other hand, introduces the Flat CRT technology, which minimizes the distortion common in conventional curved CRT displays. With a 21-inch screen, this model is a compact option ideal for smaller living spaces. One of its standout features is the advanced picture circuitry that ensures vibrant colors and sharp images. This television model also supports a variety of input connections, allowing users to easily connect gaming consoles and DVD players, and making it a versatile choice for entertainment.

In the larger category, the KV-XF51M65 offers a generous 51-inch screen size and incorporates numerous advancements, such as Sony's Dynamically Adaptive Picture Control. This technology constantly analyzes the incoming signal and adjusts the picture for optimal brightness and contrast, ensuring a consistently excellent viewing experience. The KV-XF51M65 also includes SRS Surround Sound technology, which creates an immersive audio environment to complement the stunning visuals.

Lastly, the KV-XF21N90, featuring a 21-inch display, stands out with its stylish design and reliable performance. This model focuses on user-friendly features, including an easy-to-navigate on-screen menu and customizable settings for picture and sound. Its flat-screen design not only contributes to aesthetics but also reduces glare, making it easier to watch in bright rooms. The durability and longevity of the KV-XF21N90 ensure it remains a staple in homes for years.

In summary, the Sony KV-HF51P50, KV-XF21M83, KV-XF51M65, and KV-XF21N90 collectively showcase Sony's commitment to quality and innovation in television technology. Each model offers distinct features that cater to a range of preferences, ensuring a top-notch viewing experience for all users.
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