Sony KV-27V40 service manual Method of Setting the Service Adjustment Mode

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KV-27V40 / 27V45 / 27V65 / 29VL40 / 29VL65A / 29VL65C / 29VL85 / 29VL95

(3)Screen-corner Convergence

Fig. 9

Affix a permalloy assembly corresponding to the misconverged areas:

3-3. FOCUS

1.Adjust FOCUS control for best picture.

3-5. METHOD OF SETTING THE SERVICE ADJUSTMENT MODE

(1)SERVICE MODE PROCEDURE

1.Standby mode. (Power off)

2. on the Remote Commander. (Press each button within a second.)

(2)SERVICE ADJUSTMENT MODE IN

Disp. Item

(Item) data

SERVICE AFC 0

3.The CRT displays the item being adjusted.

4.Press 1 or 4 on the Remote Commander to select the item.

5.Press 3 or 6 on the Remote Commander to change the data.

6.Press then to write into memory.

Fig. 10

3-4. SCREEN (G2)

1.Input a dots pattern.

2.Set the PICTURE and BRIGHT controls at minimum and COLOR control at normal.

3.Adjust SBRT, GCUT, BCUT in service mode with an oscilloscope as shown in Fig. 11 so that voltages on the red, green, and blue cathodes are 170Vdc.

 

 

 

 

 

 

 

 

 

 

Fig. 11

 

 

 

N

 

 

N

 

 

170 V dc

 

pedestal

 

 

 

 

 

GND

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.Observe the screen and adjust SCREEN (G2) VR

to obtain the faintly visible background of dot signal.

(3) SERVICE ADJUSTMENT MODE MEMORY

Green

Red

7.Turn set off and on to exit.

3-6. WHITE BALANCE ADJUSTMENTS

1.Input an entire white signal.

2.Set to Service adjustment Mode.

3.Set DCOL to "0"

4.Set the PICTURE and BRIGHT to minimum.

5.Adjust with SBRT if necessary.

6.Select GCUT and BCUT with 1 and 4 .

7.Adjust with 3 and 6 for the best white balance.

8.Set the PICTURE and BRIGHT to maximum.

9.Select GDRV and BDRV with 1 and 4 .

10.Adjust with 3 and 6 for the best white balance.

11.Reset DCOL to "1".

12.Write into the memory by pressing then

.

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Contents Trinitron Color TV Specifications KV-27V65Table of Contents SELF-DIAGNOSTIC Function SAFETY-RELATED Component WarningDisplay of STANDBY/TIMER Light Flash Count SELF-DIAGNOSTIC Circuit Safety CHECK-OUT Leakage TestCable or Antenna Connections C Connecting directly to cable or anSection General AntennaCable Box Connections VCR ConnectionsConnecting a DBS Direct Broadcast Satellite receiver DBS ConnectionsAdditional Connections Inserting batteries Using the remote control, Move & Select buttonsSetting up the TV automatically On-Screen Help/InstructionsUsing the White Labeled Buttons for TV Operations Watching the TVWatching two programs at one time PIP Tip zLearning menu selection Using the Video menuTo restore the factory Video settings To select the Video menuTo select the Audio menu Using the Audio menuTo restore the factory Audio settings To select the Timer menu Using the Timer menuUsing the SET UP menu To cancel the ON/OFF Timer functionTo erase the Channel Block settings Press Reset while the SET UP menu is displayedMDP Multi Disc Player manufacturer code numbers Programming the remoteVCR manufacturer code numbers DVD Digital Versatile Disc manufacturer code numbersManufacturer code numbers cable box If the remote control doesn’t workFor more details on operating the cable box or DBS receiver Manufacturer code numbers DBS receiverTroubleshooting Section Picture Tube Removal Section SET-UP Adjustments Beam LandingConvergence Method of Setting the Service Adjustment Mode Section Safety Related Adjustments Preparation before ConfirmationBoard FBTSection Circuit Adjustments Electrical Adjustment by Remote CommanderItem of Adjustments Fifr Field Frequency Sbal SUB Balance Disp OSD Position ID-0 ID-1 ID-2 ID-3 ID-4 ID-5 ID-6 ID-7 OUT Nted by Camcad Ba43blk Page Page Page Page Page Page Circuit Boards Location Section Exploded Views ONE Tuner Chassis KV-27V40/27V45/29VL40/29VL85TWO Tuner Chassis KV-27V65/29VL65A/29VL65C/29VL95 Main Power Switch KV-29VL65A only Model Capacitor Section Electrical Parts ListBOARD, Complete Acommon Parts Listing Filter DiodeChip Conductor Ferrite BeadJack CoilTransistor ResistorRES, Chip R277 Short R278 Metal Transformer SwitchRelay ThermistorConnector KV-27V40/29VL4056K KV-27V65/29VL95 Board Variant List KV-27V65/29VL95THP601 1-809-539-11 Thermistor Positive KV-29VL65A KV-27V45/29VL85 REF.NO. Part no Description KV-29VL65C Cemented CV BOARD, Complete CV E FuseComplete Parts Listing HV BOARD, CompleteHV HZ HZ BOARD, Complete KV-29VL65A onlyComplete Parts Listing K Pcomplete Parts Listing Complete Parts Listing P CrystalAccessories and Packing Materials Remote CommanderSony Corporation