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Microvitec Series 3 Colour Displays Monitors Service Manual

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Page 71

COMPREFMODEL NO.PART NO.COMPONENT DESCRIPTIONL2(1496/LI2U)(2030/CS5)(2031/CS5)(2031/AX)(2032/AM)(1431AP/MS4)(1431AP/DS)(1431/AS)(1432/AS)(1431/BS)(1431/LS1)(1431/MZ3)(1431/MZ4)(1431/MB4)(1431/MR4)(1431/MS4)(1431/DS)(1435/MS)(1436/LS1)(1436/MS4)(1439/AS)(1439/MS)(1441/AL)(1441/AS)(1441/MS)(1441/MS4)(1486/LI2U)(1451/AS)(1451/DS)(1451/MS)(1451AP/MS4)(1451AP/DS)(1449/AS)(1456/LI2)(1241/AS)(1446/LF)(1446/LI2)(1241/AT)LW 104UA7CHOKE W IRE ENDED 10uH PC5640L201LW 154SK2CHOKE W IRE ENDED 15uH...

Page 72

COMP REFMODELNO.PART NO.COMPONENT DESCRIPTIONFH3A/B(2031/CS5)(2031/AX)(2032/AM)(1431AP/MS4)(1431AP/DS)(1432/AS)(1431/BS)(1431/LS1)(1431/MZ3)(1431/MZ4)(1431/MB4)(1431/MR4)(1431/MS4)(1431/DS)(1435/MS)(1436/LS1)(1436/MS4)(1439/AS)(1441/AL)(1441/AS)(1441/MS)(1441/MS4)(1451/AS)(1451/MS)(1451AP/MS4)(1451AP/DS)(1451/DS)(1449/AS)(1456/LI2)(1241/AS)(1446/LF)(1446/LI2)(1241/AT)KS0001Y01FUSE CLIP-PCB MTG (5mm)HARNESSA00584I01TB -NO. 1 (4 LEADS) BR, OR, W , Y.HARNESSA00585I01TB - NO. 2 (8...

Page 73

COMP REFMODEL NO.PART NO.COMPONENT DESCRIPTIONFH1A/B,FH2A/B(2030/CS5)(2031/CS5)(2031/AX)(2032/AM)(1431AP/MS4)(1431AP/DS)(1431/AS)(1432/AS)(1431/BS)(1431/LS1)(1431/MZ3)(1431/MZ4)(1431/MB4)(1431/MR4)(1431/MS4)(1431/DS)(1435/MS)(1436/LS1)(1436/MS4)(1439/AS)(1439/MS)(1441/AL)(1441/AS)(1441/MS)(1441/MS4)(1451/AS)(1451/MS)(1451AP/MS4)(1451AP/DS)(1451/DS)(1449/AS)(1456/LI2)(1241/AS)(1446/LF)(1446/LI2)(1241/AT)KS0003Y01FUSEHOLDER L222/KFH3A/B(1496/LI2U)(1486/LI2U)KS0006Y01FUSE CLIP-PCB MTG (6.3mm) 

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COMP REFMODELNO.PART NO.COMPONENTDESCRIPTIONF2(2031/AX)(2032/AM)(1431/AS)(1432/AS)(1431AP/MS4)(1431AP/DS)(1439/AS)(1439/MS)(1451/AS)(1451/MS)(1451AP/MS4)(1451AP/DS)(1451/DS)(1241/AS)(1446/LF)(1446/LI2)(1456/LI2)(1241/AT)KA2001BAO! FUSE 2AMP (20mm) TIME...

Page 75

TYPICAL AUDIO SPECIFICATIONSTypical specifications for the audio amplifierstageareasfollows:Input impedance:47 k      nominalInput  sensitivity:100 mV typicalOutput:2watts max @ 1kHz into 16 ohmsTABLE OF OPTIONSConnectorAvailable StandardsPin No.W ire Colour CodingTTL1V/75RPAL10BrownO/C0V (S/C)0V (S/C)15Mauve•> 0.7V < 12V (O/C)0V (S/C)17Pink0V (S/C)> 10.5V < 12V (O/C)> 10.5V < 12V(O/C)NOTES:-    Not Critical (May be 0V to 12V or O/C)0/C   =     Open Circuit (No connection)S/C   =    Short Circuit (< 10...

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PARTS LISTCircuit ReferenceComponent ReferenceComponent  DescriptionRESISTORSR5, 20, 21, 23, 25, 27, 28RF104DJORESISTOR C/F 10K 1/4W 5%R6, 8RF562DJORESISTOR C/F 560R 1/4W  5%R7, 30RF473DJORESISTOR C/F 4K7 1/4W 5%R9RF156DJORESISTOR C/F 1M5 1/4W  5%R10RF183DJORESISTOR C/F 1K8 1/4W 5%R11, 12RF392DJORESISTOR C/F 390R 1/4W  5%R13, 18RF225DJORESISTOR C/F 220K 1/4W  5%R14, 15RF123DJORESISTOR C/F 1K2 1/4W 5%R16RF272DJORESISTOR C/F 270R 1/4W  5%R17RF273DJORESISTOR C/F 2K7 1/4W 5%R19RF184DJORESISTOR C/F 18K 1/4W...

Page 77

Circuit ReferenceComponent ReferenceComponent  DescriptionDIODESD1, 2, 3DZ73560FRODIODE ZENER BZX79B5V6 2%D4, 5DS4143UTODIODE 1N 4148 THOMSONINTEGRATED CIRCUITSIC1IL3301UM3CIRCUIT INT. TDA3301 SELECTEDIC2IG4551UM2CIRCUIT INT. 4551IC101, IC201IL19080S2CIRCUIT INT. TDA 1908CHOKES & DELAY LINESL1LW 474SK2CHOKE 47uHL2LW 105SK2CHOKE 100uHL3LW 104SK2CHOKE 10uHL4, 5LV001TA3CHOKE KAN K2819XML11LW 154SK2CHOKE 15uH B78108-T1153-KDL1ED0001P01DELAY LINE DL470DL2ED0002P01DELAY LINE DL711CONNECTORSPL1KP0026A17PLUG...

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SPECTRUM INTERFACE CARD - DESCRIPTION/OPERATION1.       LUMINANCE CHANNEL (Y)A.        The (-Y) signal contains:(1)  Video information(2)  line sync pulses(3)  frame sync pulse3.        The incoming Y signal is attenuated by the potential divider, R16, R17 the resultant signal is thenamplified by TR6.C.        Transistors TR7, TR8 and TR9 have the following functions:-(1)     TR7 - Separates the sync pulses(2)     TR8 - Inverts the sync pulses(3)     TR9 - Buffers the sync pulsesR28 and R29 in the...

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C.      THE (G-Y) OUTPUT(1)      This signal is generated by mixing the following:-(a)     The (B-Y) clamped signal. TR16 performs this mixing function(b)     The (R-Y) clamped signal, TR16 performs this mixing function(2)     The proportions of (B-Y) and (R-Y) clamped signals which are added together are set by R54 andR40.(3)     G OUTPUTS(a)    This signal is produced by the addition of the following signals:-(i)    (G-Y) clamped signal. TR17 performs this function. (ii)     +Y clampedsignal, TR17...

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__________________PROM INTERFACE PANEL_________________GENERAL1.       The Programmable-read-only-memory (PROM) interface panel is used with certain models in theSERIES-3 range of colour monitors. Two different versions of the panel assembly may be used -depending on model and intended country of operation.2.       Basically, the two versions are very similar.(1)      Versions incorporating R.F.I. filtering networks (L/C components L1   to L3 & C4 to C6), areemployed with certain models intended for use...
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