RCA-21-S-348-Sams-24.. - Early Television Foundation

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TUBE PLACEMENT CHARTTUBE FAILURE CHECK CHARTThe following chart lists tubes whose failures are most likely to produce the indicated symptomsRefer to tube placement chart for location and type of tube.POWER SUPPLY FAILURENo raster, no sound - V20, V21LOSS OF PICTURE OR SOUNDNo pic, no sound, has raster - V2, V3, V4, V5, V6No pic, no sound, has snow - VI, V2, V3No pic, has sound, has raster - VI, V8, V22Has pic, no sound - V7, V10, TO, V12, V13Overloaded picture - V8, V12SYNC FAILURENo vert, sync - V7, V14No horiz. sync - V6, V14, V16No vert, or horiz. sync - V14SWEEP FAILURENo raster, has sound -V16, VH, V18, V19, V22, Fuse (Ml)No vertical deflection - V14, V15Poor vert, linearity or foldover - V14, V15Poor horiz. linearity or foldover - V16, V17, V18Narrow picture - V16, VII, V18, V19, V20, V21Vert, off freq. -VI, V14Horiz. off freq. - V6, V14, V16PAGE 10
RESISTANCE MEASUREMENTSItemV 1V 2V 3V4V 5V 6V7V8V 9V 10V 11V 12V13V14V 15V 16V 17V 18V 19V20V21V22Tube6BQ7A6X86CF66CF66CB612AU76X812AU76AU66AU66AL56AV66K6GT6SN7GT6K6GT6SN7GT6BQ6GT6AX4GT1B3GT5U4G5Y3GT21EP4APin 1tl. 5Knon44KH43KS2.3(22MegOS!260Kn8.5S2120KnlOKfilOMegINFtl.SMegINFl.SMegINFINFINFINFOnPin 2400KI2lOOKn6803317180n3.9KO2.2Meg4.5MegononlOKnonon•fl2.3Kn.int45K!JanINFPin 3soOKnt!2.5Knonon.in.30tl.2Megt4.3Knonononont2.2Knont525n410KnDJFIMegonon.in.10on.inPin 4ananan.inananti.8Knl.BMegt4on480KS2te.BKnINFananPin 5t4.8Knt4.8Kn|3.7Knanonant4.3KntiOKnINF350Kn470Kn«1.6Megl.SMegt47KnIMegt70nPin 6500KnonT4.8Knt4.8Kn|3.7Knt6.8KnI2ont7.5Knt4.3Knts.sxnon350KnINFonINFon2.2MegINFPIN 1 - 8 HAVE INF RESISTANCE60Kn60 Kn470KS2INFINFPIN 10-325JO2isn13 nPINUINFINFPIN 12an13 n13 ni70icnt MEASURED FROM PIN 8 OF V21. MEASURED FROM PIN 3 OF V18Pin 7350KnloOKnononontsoKn3.9Kn470Kn82 nonINFtsooKnananonanononINFINFI2onPin 8t!5.5Kn400KntioxniiKn5 eononononwonan60KneoxnonPin 9t!5.5KnonT22KHonTOP CAP-9QTOP CAP.naon= wi ._ mto O r-i - t/l(Vt\/CONVOL25LllOcSfietn C -00 kjw w -P oTUBE PLACEMENT CHARTSET 242 FOLDER !PAGE 11
Page 1 and 2: PHOTO FACT* FolderO ft>VOLUMECONTRO
Page 3: ©]_IMM" ^-Ng&j:@IZ©i, i @,. ''> i
Page 6 and 7: RCA VICTOR MODELS 21-5-348, G, GU,
Page 8 and 9: RCA VICTOR MODELS 21-S-348, G, GU,
Page 10 and 11: ALIGNMENT INST4.5.6.7.8.9.10.111213
Page 12 and 13: RUCTIONS (cont)X"F IG.51ST VIDEO IF
Page 16 and 17: TROUBLE SHOOTING AIDSSWEEPLOSS OF S
Page 18 and 19: HORIZ.FREQ.HORIZ.LOCKHORIZ.DRIVEWID
Page 20 and 21: ITEMNo.VIV2V3V4V5V6V7V8V9V10VllV12V
Page 22 and 23: MALLORYPART No.UC-5347UC-5347DC-511
Page 24 and 25: ITEMNo.L19L20L21L22L23L24L25L26L27L
Page 26 and 27: PAGE 2OLUIutrj
Page 28 and 29: PAGE 23CHASSIS BOTTOM VIEW-RESISTOR
Page 30: A PHOTOFAa STANDARD NOTATION SCHEMA

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