User manual SONY KV-27TS27 SERVICE MANUAL

[. . . ] KV-27TS35 SERVICEMANUAL RM-Y102 Chassis No. SCC-E54H-A US Model Canadian Model Chassis No. SCC-E65E-A MODELS OF THE SAME SERIES KV-27TS35 KV-27TS27/27TS31 KV-27TW75/27TW76 SPECIFICATIONS Television system American TV standards Channel coverage VHF: 2 - 13 UHF: 14 - 69 Cable TV: 1 - 125 MicroblackTM Trinitron" tube Picture tube 274nch picture measured diagonally 28-inch picture tube measured diagonally 75ohm external antenna terminal for Antenna VHF/UHF Input VIDEO and S VIDEO S VIDEO IN (S terminal) Y: 1 Vp-p, 75-ohms unbalanced, sync negative C: 0. 286 Vp-p (Burst signal), 75ohms Video (phono jacks): 1 Vp-p, 75-ohms unbalanced, sync negative Audio (phono jacks): 500 mVrms (100% modulation) Impedance: 47 kilohms AUDIO OUT (VARIABLE) (phono jacks) output More than 408 mVrms at the maximum volume setting (variable) Impedance: 5 kilohms 5Wx2 Speaker output Power requirements 120 V AC, 60 Hz 17ow Power consumption 5W Standby mode 660. 5x602. 5 x468 mm Dimensions (w I h 1 d) (26% x 23% x 18% in. ) Weight 46 kg (99lbs 402) Supplied accessories Remote commander RM-Y 102 (1) with 2 size AA (R6) EVEREADY batteries Recommended accessories U/V mixer EAC-66 Connecting cable VMC-810/82OS, YC-15 Vi30 V, RK-tiA Design and specifications are subject to change without notice. TRINlTRONdOLOR TV SONX 996479501 KV-27TS35 RM-Y102 (CAUTION) SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE ANODE CAPTOTHE METAL CHASSIS, CRTSHIELD, OR CARBON PAINTED ON THE CRT, AFTER REMOVING THE ANODE. AN ISOLATION TRANSFORMER SHOULD BE USED DURING ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BECAUSE OF LIVE CHASSIS. [. . . ] * Switch on the set's power and degauss with the degausser. Purity control 13-l. Input the white signal with the pattern generator. Contrast normal Bightness I Set the pattern generator raster signal to red. Move the deflection yoke to the rear and adjust with the purity control so that the red is at the center and the blue and the green take up equally sized areas on each side. (See Figures 3-l through 3-3. ) Move the deflection yoke forward and adjust so that entire screen is red. (See Figure 3-l. ) Switch the raster signal to blue, then to green and verify the condition. When the position of the deflection yoke has been decided, fasten the deflection yoke with the screws. If the beam does not land correctly in all the corners, use a magnet to adjust it. CONVERGENCE 1 Preparation : l 0 Tilt the V. STAT magnet and adjust the static convergence by opening or closing the V. STAT magnet. Before starting this adjustment, adjust the focus, horizontal size, and vertical size. Horizontal and Vertical Static Convergence l l (1) Center dot 4. If the V. STAT magnet is moved in the direction of the @ and @ arrows, the red, green, and blue points move as shown below. V. STAT RV 708 (G 2) SCREEN G B 1. (Moving horizontally), adjust the HSTAT control so that the red, green, and blue points are on top of each other at the center of the screen. 2. (Moving vertically), adjust the V. STAT magnet so that the red, green, and blue points are on top of each other at the center of the screen. 0 3. If the H. STAT variable resistor cannot bring the red, green, and blue points together at the center of the screen, adjust the horizontal convergence with the H. STAT variable resistor and the V. (In this case, the H. STAT variable resistor and the V. STAT magnet influence each other) -25- KV-27TS35 RM-YlO2 I @ Operation of BMC (Hexapole) Magnet RG 8 RG8 R GB -e-o- 0 The respective dot positions resulting from moving each magnet interact, so be sure to perform adjustment while tracking. Use the HSTAT VR to adjust the red, green, and blue dots so they coincide at the center of screen (by moving the dots in the horizontal direction). Purity Purity II V. STAT m a g n e t BMC I Hexa~ole~ mannet 1 I (2) Dynamic Convergence Adjustment Preparations l : Move the deflection yoke as shown in the figure below and optimize the convergence. Install the defelection yoke spacer. Before starting this adjustment, adjust the 3. horizontal static convergence and the vertical static convergence. 2. Slightly loosen the deflection yoke screws. Remove the deflection yoke spacer. R GB BGR * -26- KV-27TS35 RM-Y102 (3) Screen-corner Convergence Affix a permalloy ass'y corresponding to the misconverged areas. [ 3-3. FOCUS ADJUSTMENT 1 Adjust FOCUS control on the flyback transformer for a best focus. Permalloy assembly (Part No. WHITE BALANCE1 [ Screen G 2 setting ] 1. 4. Input the dot signal from the pattern generator. Set the picture brightness control to its lowest level. Apply 180 V DC to the R, G, and B cathodes with an external power supply. [. . . ] CARBON 39K 3-g ;" CARBON METAL 1; 1; 4. iK 5% IOOK 10; ;;;i ;g 1OOK 10% . . lk 1/4w ;;g 1/4W i:z 1/2k' l/21 1/2k' l/ik' ;;j; l/41 1/4k F <VARIABLE RESISTOR> RVlOl i-238-023-U RES, ADJ, CARBON 470K <Sk!ITCH> SIOI'A. S102 1-571-532-21 SUTCH, TACT11 S103 l-571-532-21 SVITCH, TACTIL S104 1-571-532-21 SWITCH, TACT11 S105 l-571-532-21 SWITCH. TACT11 S106 I-571-532-21 Sh'ITCH, TACT11 <SPARK GAP> s - R536 1-249-425-11 CARBON R53S l-202-838-00 SOLID R539 I-202-836-00 SOLID R540 I-202-835-00 SOLID R541 l-202-838-00 SOLID mm& i METAL R544 `l-249-429-11 !f;kN R545 I-249-417-11 CARBON R546 l-249-417-11 CARBON ii"' IK ISK 1 i2 y k ;;% F SG501 I-519-422-11 GAP, SPARK <TRANSFORHER> TiOl& i-437, 2695-13 TRP;fiSFOR!IER, HORIZONTAL! [. . . ]