SERVICE MANUAL BG-2T CHASSIS MODEL COMMANDER DEST. CHASSIS NO. MODEL COMMANDER DEST. CHASSIS NO. KV-TG21M61 RM-952 Singapore SCC-U66B-A KV-TG21M90 RM-952 Hong Kong SCC-U64A-A ÷ JUMP SOUND Á PROGR MODE FAVORITE TRINITRON COLOR TV ®...
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THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. OR CARBON PAINTED ON THE CRT, AFTER REMOVING THE REPLACE THESE COMPONENTS WITH SONY PARTS ANODE. WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. – 2 –...
KV-TG21M61/TG21M90 RM-952 SELF DIAGNOSTIC FUNCTION The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automati- cally begin to flash. The number of times the lamp flashes translates to a probable source of the problem. A definition of the STANDBY/ TIMER lamp flash indicators is listed in the instruction manual for the user’s knowledge and reference.
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KV-TG21M61/TG21M90 RM-952 2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT Diagnostic Item Flash Count* 2 times +B overcurrent/overvoltage 2 times Vertical deflection stopped 4 times 4 times * One flash count is not used for self-diagnostic. Lamp ON 0.3 sec. Lamp OFF 3 sec.
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KV-TG21M61/TG21M90 RM-952 5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you have completed the repairs, clear the result display to “0”. Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after completion of the repairs.
KV-TG21M61/TG21M90 RM-952 WARNING (continued) Getting Started Step 1 Insert the batteries (supplied) into the remote. Pull the power cord out by the plug. Do not pull the power cord itself. Even if your TV is turned Note off, it is still connected to the AC power source •...
• Count the number of times the 1 (standby) indicator flashes. Press ! (red, green, Access a FASTEXT The 1 (standby) (main power) to turn off your TV. Contact your nearest Sony service indicator on your TV yellow, blue) menu.
KV-TG21M61/TG21M90 RM-952 Presetting channels (continued) Setting the timers You can turn on and off your TV by using the buttons respectively. To change the TV system setting If the picture or sound is abnormal when receiving programs through the 8 (antenna)
KV-TG21M61/TG21M90 RM-952 Viewing Teletext Adjusting the picture position If the picture is slanting, you can adjust the picture position using the Not function for your TV “PIC ROTATION” function until it is optimal. Some TV stations broadcast an information service called Teletext which...
KV-TG21M61/TG21M90 RM-952 SECTION 3 SET-UP ADJUSTMENTS The following adjustments should be made when a complete Perform the adjustments in the following order : realignment is required or a new picture tube is installed. 1. Beam Landing These adjustments should be performed with rated power 2.
KV-TG21M61/TG21M90 RM-952 3-2. CONVERGENCE • Operation of V. Stat magnet If the V. Stat magnet is moved in the "a" and "b" arrows, the Preparation : red, green and blue dots move as shown below. • Before starting this adjustment, adjust the focus, horizontal size and vertical size.
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KV-TG21M61/TG21M90 RM-952 (2) Dynamic Convergence Adjustment Preparation: Before starting this adjustment, adjust the horizontal static convergence and the vertical static convergence Insert Correction Plate to DY Pocket (Left or Right) YCH Rotate YCH VOL on DY Rotate TLV VOL ON DY...
KV-TG21M61/TG21M90 RM-952 3-4. G2 (SCREEN) AND WHITE BALANCE (3) Screen-corner Convergence ADJUSTMENTS G2 (SCREEN) ADJUSTMENT 1) Set the PICTURE to normal. a-d : screen-corner 2) Put to VIDEO input mode without signals. misconvergence 3) Connect R, G and B of the CV board cathode to the oscilloscope.
KV-TG21M61/TG21M90 RM-952 SECTION 4 CIRCUIT ADJUSTMENTS 4-1. ADJUSTMENT WITH COMMANDER e. OTHER FUNCTION VIA REMOTE COMMANDER 7, - All the data becomes the values in memory. Service adjustments to this model can be performed using the 8, - All user control goes to the standard state.
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KV-TG21M61/TG21M90 RM-952 ITEM INFORMATION No. 1E VP1 Item KV-TG21M61 KV-TG21M90 Switch-on behaviour 1=Switch -on of picture via internal delay 0=Without delay 00(4) 1=Switch off in vertical overscan 0=Switch-off undefind 18(7) Service blanking Mode 1= on 0= off 0B(7) RGB Blanking Mode 1 = wide blanking, 0 = normal blanking...
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KV-TG21M61/TG21M90 RM-952 No. 4F OP2 Item No NICAM US ST HDEV 1 V-Curve XTAL SEL SECAM 2nd Lang. KV-TG21M61 KV-TG21M90 No NICAM 1 = NICAM search is disable in any TV system, 0 = NICAM search operates US ST (Reserved for NTSC model)
KV-TG21M61/TG21M90 RM-952 4-3. PICTURE QUALITY ADJUSTMENT 4-4. DEFLECTION ADJUSTMENT NORMAL MODE (50Hz) SUB COLOR ADJUSTMENT Set to Service mode. 1. Select Video. Input PAL color bar. Using the 1 and 4 button, select category GEO 2. Input a PAL color-bar.
IC551 RESET 43 RESET EHTX-RAY V OUT DY ASS'Y X IN X OUT IC5802 Q561 D591 D561 +5V REG +13V X RAY +135V CN002 X801 12MHz CVBS VIDEO CN5803 V2 (TELE TEXT) (KV-TG21M61 ONLY) – 25 – – 26 –...
• All voltage are in Volt. V2 BOARD ✽ • : Cannot be measured. • Circled numbers are waveform references. (KV-TG21M61 only) • : B +bus. • : B –bus. ÷ • : signal path. Reference information RESISTOR...
KV-TG21M61/TG21M90 RM-952 (5) Schematic Diagram of F Board (KV-TG21M90 ONLY) CISPR CN4601 VDR461 JW4602 F 4601 T 3.15A ERZV14D621 T 4601 250V AC IN AC OUT JW4601 R4601 AC IN AC OUT 1/2W CN4602 TO A BOARD C4601 T 4602...
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KV-TG21M61/TG21M90 KV-TG21M61/TG21M90 RM-952 RM-952 PRINTED WIRING BOARDS [POWER SUPPLY,DEFLECTION, NOTE: AUDIO AND VIDEO PROCESSING, The circuit indicated at left contains high voltage of over AUDIO/VIDEO INPUT/OUTPUT AND MICROCOMPUTER] 600 Vp-p. Please pay attention when inspecting or repair- ing it to prevent an electric shock.
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KV-TG21M61/TG21M90 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK C2603 1-126-947-11 ELECT 47UF 20.00% 25V R2204 1-216-029-00...
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KV-TG21M61/TG21M90 RM-952 The components identified by shading and mark ! are critical for safety. Replace only with part number specified. CV F (KV-TG21M90 ONLY) REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK C717 1-102-852-91 CERAMIC 47PF 5.00%...
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! are critical for safety. Replace only with part number specified. (KV-TG21M61 ONLY) REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK * A-1342-630-A V2 BOARD MOUNTED (KV-TG21M61) <TRANSISTOR> ********************* Q5801 8-729-230-49 2SC2712-YG Q5803 8-729-230-49 2SC2712-YG...
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! are critical for safety. Replace only with part number specified. REF NO. PART NO. DESCRIPTION REMARK REF NO. PART NO. DESCRIPTION REMARK Sony Corporation Sony Technology Malaysia Sdn. Bhd. English 9-872-259-01 Visual Products General Area 2001.7 – 62 –...