User manual SONY KV-8AD12

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Manual abstract: user guide SONY KV-8AD12

Detailed instructions for use are in the User's Guide.

[. . . ] THE CHASSIS OF THIS RECEIVER IS DIRECTLY CONNECTED TO THE AC POWER LINE. (ATTENTION) A P R E S AVOIR DECONNECTE LE CAP DE L'ANODE, COURTCIRCUITER L'ANODE DU TUBE CATHODIQUE ET CELUI DE L'ANODE DU CAPAU CHASSIS METALLIQUE DE L'APPAREIL, OU AU COUCHE DE CARBONE PEINTE SUR LE TUBE CATHODIQUE OU AU BLINDAGE DU TUBE CATHODIQUE. AFIN D'EVITER TOUT RISQUE D'ELECTROCUTION PROVENANT D'UN CHhSlS SOUS TENSION, UN TRANSFORMATEUR D'ISOLEMENT DOIT ETRE UTILISli LORS DETOUT DEPANNAGE. L E CHhSlS D E C E RliCEPTEUR E S T DIRECTEMENT RACCORDtj: A L'ALIMENTATION SECTEUR. ATTENTION AUX COMPOSANTS RELATliS SliCURITk!! [. . . ] PICTURE TUBE REMOVAL 0 D board @ Four picture tube special nuts / @I Picture tube shield I ' / 0 @ Deflection yoke 8 Picture tube / /' 0 Anodicap l\\ REMOVAL OF ANODE-CAP NOTE : Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT chield or carbon painted on the CRT, after removing the anode. REMOVING PROCEDURES ' 0 Turn up one side of the rubber cap in the @ Using a thumb pull up the rubber cap direction indicated by the arrow @. firmly in the direction indicated by' the a r r o w @. Anode button @ When one side of the rubber cap is separated from the anode button, the anode-cap can be removed by turning up the rubber cap and pulling up it in the direction of the arrow 0. l HOW TO HANDLE AN ANODE-CAP 0 Don't hurt the surface of anode-caps with sharp shaped material!@ Don't press the rubber hardly not to hurt inside of anode-caps!A material fitting called @I as shatter-hook terminal is built in the rubber. Don't turn the foot of rubber over hardly!The shatter-hook terminal will stick out or hurt the rubber. -23- SECTION 3 SET-UP ADJUSTMENTS l The following adjustments should be made when a complete realignment is required or a new picture tube is installed. Perform the adjustments in order as follows : 1. White Balance Note : Test Equipment Required. . l These adjustments should be performed with rated power supply voltage unless otherwise noted. Controls and switch should be set as follows unless otherwise noted : PICTURE control . Preparations : 0 In order to reduce the influence of geomagnetism on the set's picture tube face it east or west. * Switch on the set's power and degauss with the degausser. Purity control 13-l. Input the white signal with the pattern generator. Use the RV 703 (B Drive) and RV 705 (G Drive) to adjust white balance. 2. 3. In the adjustments below, have the picture color and brightness settings at their normal levels unless there is a specific instruction to the contrary. -27- SECTION 4 SAFETY RELATED ADJUSTMENTS E R542 CONFIRMATION METHOD (HOLD-DOWN CONFIRMATION) AND READJUSTMENTS The following adjustments should always be performed when replacing the following components (marked with 0 on the schematic diagram). IC601, Q605, Q606, C536, R542, R546, R62O, R621, R629, R630, R639, PM501 0 1. Preparation before confirmation 1) Remove R620 on the D board and connect a variable resistor (RVl : about 20k0 ) between pin 0 of IC601 and B+ line. 2) Supply 120+2. OV AC to with variable autotransformer. Hold-down operation confirmation 1) Turn the POWER switch ON, \and receive entirely white signals and adjust ABL current to 1650 + 20 PA with PICTURE and BRIGHT etc controls. 2) Increase B+ line voltage gradually by adjusting the resistor of RVl. Confirm that the minimum voltage is less than 144. OV DC whereby the raster disappears during operation of hold-down circuit. NOTE: When the hold-down circuit starts operating, switch OF'F' the POWER of the set immediately. 3) Turn the POWER switch ON, and receive dot signals and adjust ABL current to 150f20pA with PICTURE and BRIGHT etc controls. 4) Increase B+ line voltage gradually by adjusting the resistor of RVl. [. . . ] ;;L# 1-249-417-11 CARBOh R514-A:l-249-415-91 `:. CARBON (^. . : . $C& # ;;A; R515 1-249-421-11 CARBON R517 R51S R519 R520 R521 l-249-417-11 l-249-417-11 l-249-405-11 I-249-389-11 l-249-448-11 CARBON CARBON CARBON CARBON CARBON 5% ;; 1oo ;; 4. 7 i% 1. 2 5x F R650 1-247-713-11 CARBON R651 l-249-377-11 CARBON R653 R652 R654 R655 R656 R657 R65S R659 1-249-377-11 1-249-377-11 1-249-377-11 1-249-377-l 1 1-249-377-11 1-249-377-l 1 l-249-377-11 CARBON CARBON CARBON CARBON CARBON CARBON CARBON i;;: l/4$ l/49 F 1/4k' F R522" l-216-375-00 METAL OXIDE 3. 3 5% `Ii R523 8. 1-216-345-91 . METAL OXIDES 0. 47 $ l!i. : Ri24 I-216-373-11 METAL OXIDE 2. 2 2k' R525 A. R5268;1~216-434-91 METAL OXIDE l. SK 5%' IW F R527 l-216-429-00 R529 l-249-429-11 R530 1-249-436-11 R534 1-249-435-11 R535 I-215-373-31 METAL OXIDE 270 5% CARBON 1OK 5? [. . . ]

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