
CONTENTS PAGE Safety Instructions 2 Technical Specifications 3 Block Diagram 4 Pin Voltages of IC’s 5 Oscillograms 8 Electrical and Service Ad
IC501 (TDA8174)T551Base500mV/div, 10 usn/div, Vpp=1.5V, 15625 HzCollector1 V/div, 20 usn/div, Vpp=4.7V, 15625 HzPin 72V/div, 10 msn/div, Vpp=8.1 V, 50
T552Base Collector2 V/div, 20 usn/div, Vpp=10V, 15625 Hz 200 V/div, 20 usn/div, Vpp=932V, 15625 Hz
1. ELECTRICAL ADJUSTMENTS 1.1 Supply Voltage Adjustment Connect a digital voltmeter to the cathode of diode D950 at the AV mode of the TV and set th
• Change the value of “VCO C L” , until the colour of “:” sign turns red (“<” and “>” are white). • Change the value of “VCO F L” , until th
NUM.OF AV : Please see Table 1 AV2 : Please see Table 1 STD-BY : ON (Default, Automatic switch off is active), OFF (can be used during repair)
SPARE PARTS LISTPART NO NOTES250111 EC 1UF 16V 11*5 R:5 C101 C125 C136 C138 C141293108 CC-CHIP 10NF K 50V /0805 X7 C102 C104 C140250111 C-ELA 1UF
SPARE PARTS LIST179001 RC-CHIP 0R /0805 2*1.25 BG/DK SYSTEM C423 L108 R336 R337 R338291560 CC-CHIP 560PF J 50V /0805 N C429 C437 C438252229 EC 220
SPARE PARTS LIST302289 DIODE 1N4148 52MM D558302948 DIODE 1N4007 D701302289 DIODE 1N4148 52MM D702 D703 D704303308 DIODE RF2007 D901 D902 D903 D9043
SPARE PARTS LIST170472 RC-CHIP 47R J 1/10W /0805 R107 R106 R108 R113101470 CFR 470R J 1/4W /6 52MM R109 R110 R111171471 RC-CHIP 470R J 1/10W /0805 R
SPARE PARTS LIST174104 RC-CHIP 100K J 1/10W /0805 R521172823 RC-CHIP 8.2K J 1/10W /0805 R522172225 RC-CHIP 2.2K J 1/10W /0805 R523172394 RC-CHIP 3.9K
SAFETY INSTRUCTIONS GENERAL GUIDELINES 1. It is advised to insert an isolation transformer in the AC supply before servicing a hot chassis. 2. Pot
SPARE PARTS LIST401334 TRN STX112 T551401332 TRN BU808DFI T552401397 TRN 2SC 2482 T701 T703 T705401366 TRN BF421 T702 T704 T706401424 TRN STP4NK60ZFP
TECHNICAL SPECIFICATIONS Power source: 220-240V AC, 50-60Hz Power consumption (max.) : 115 W 20”, 21” (110W for 21” PF) Stan
IC316 MSP34X0GAudio ProcessorMono in / Aud outRGBT701, T703,T705CRT ModuleT702, T704,T706H-OutH-Sync/LFB48494720/13SIF1-2447-6PIF8IC101 STV224XHorizo
PIN VOLTAGES OF IC'SPin Connection V DC (*) Pin Connection V DC (*)1Sound IF Input 1 1,029Not connected 3,92Sound IF Input 2 1,030Blue Output 2,3
Pin Connection V DC Pin Connection V DC 1Not connected 2,333Scart 2 sound output (R) 3.72Gnd 0,034Scart 2 sound output (L) 3.73Gnd 0,035Reference a
Pin Connection V DC (*) Pin Connection V DC (*)1Infra red input 4,929Analog pin for TXT 2,02Reset 4,330Not connected 1,03Not connected 0,031Analog pow
Note: TV is connected to a patern generator (Colour bar, sound 1 kHz).IC101 (STV224X)WAVEFORMS OF SOME IC PINSPin 111V/div, 100 usn/div, Vpp=1.6 VPin
IC101 (STV224X)IC316 (MSP34X0G)IC402 (ST92195B)Pin 191V/div, 20 usn/div, Vpp=5.2 VPin 201V/div, 20 usn/div, Vpp=4.9 V, 15625 HzPin 55200mV/div, 20 msn
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