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SERVICE MANUAL FLAT COLOUR TELEVISION 1 2005 YA146 AV-21W314/B ЮЯНЧЭ ЭШЯННЧН ЭЙ 1 2 3 4 5 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30 TABLE OF CONTENTS COPYRIGHT © 2005 Victor Company of Japan, Limited No.YA146 2005/1 SPECIFICATION Items Dimensions (W I H I D) Mass TV RF System Colour System Stereo System Receiving Frequency VHF Low VHF High UHF CATV 64.9cm I 46.55cm I 47.15cm 24kg B, G TV Mode PAL / SECAM Video Mode PAL / SECAM / NTSC3.58 / NTSC4.43 A2 (B/G) (Billingual), Playback 46.25MHz ~ 168.25MHz (AU0 ~ S10) 175.25MHz ~ 463.25MHz (E5 ~ S41) 471.25MHz ~ 863.25MHz (E21 ~ CHINA 57) Mid : X ~ Z, S1 ~ S10 Super: S11 ~ S20 Hyper: S21 ~ S41 Contents Intermediate Frequency VIF 38.0MHz SIF B/G: 32.5MHz (5.5MHz) A2: 32.26MHz (5.74MHz) Colour Sub Carrier Frequency Aerial Input Terminal Power Input Power Consumption Picture Tube Screen Size High Voltage Speaker Audio Output Video / Audio Input [1/2/3] 4.43MHz (PAL), 4.40MHz/4.25MHz (SECAM), 3.58MHz/4.43MHz (NTSC) 75 unbalanced, coaxial AC110V-AC240V, 50Hz / 60Hz (Operating Voltage 90V ~ 260V) 121W (Max.) / 81W (Avg.) A51LYJ10X 21-inch, aspect ratio 4:3, flat square face type, tinted Visible size : 51.0cm (Diagonal) / 41.6cm I 31.5cm (H I V) 29kV±1.5kV (at zero beam current) 6.5cm I 13cm, Oval type I 2 7W +7W S-Video[1] Mini-DIN 4 pin I 1 Y: 1V(p-p), positive (negative sync provided), 75 C: 0.286V(p-p) (Burst signal), 75 Video [1/2/3] 1V(p-p), negative sync, 75 , RCA pin jack I 3 Audio [1/2/3] 500mV(rms) (-4dBs ), high impedance, RCA pin jack I 6 Component RCA pin jack I 3 Video [2] Y:1V(p-p), positive (negative sync), 75 Cb/Cr:0.7V(p-p), 75 Video / Audio Output Headphone Remote Control Unit Video 1V(p-p), 75 , RCA pin jack I 1 Audio 500mV(rms)(-4dBs), Low impedance (400Hz when modulated 100%), RCA pin jack I 2 3.5mm stereo mini jack I 1 RM-C1281-2H (AA/R06/UM-3 battery I 2) Design & specifications are subject to change without notice. 1-2 (No.YA146) SECTION 1 PRECAUTION 1.1 SAFETY PRECAUTIONS (8) When service is required, observe the original lead dress. Extra precaution should be given to assure correct lead dress in the high voltage circuit area. Where a short circuit has occurred, those components that indicate evidence of overheating should be replaced. Always use the m