Pilot Communications TV-37 Service Instructions Manual

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PILOT RADIO
MODEL TV-37'
TELEVISION RECEIVER
SERVICE INSTRUCTIONS
O
This manual compiled by:
P i i d r
RADIO CORPORATION
Long Island City 1, N. Y., U.S.A.

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Summary of Contents for Pilot Communications TV-37

  • Page 1 PILOT RADIO MODEL TV-37' TELEVISION RECEIVER SERVICE INSTRUCTIONS This manual compiled by: P i i d r RADIO CORPORATION Long Island City 1, N. Y., U.S.A.
  • Page 2 PILO T FACT* F o ld e r h o t o M O D E L T V - 3 7 CONTRAST HI-LO BAND TUN IN G VOLUME CONTROL SWITCH CONTROL CONTROL O N - O F F SWITCH TR ADE NAME P i l o t , Modal TV-3? P i l o t Radio C o r p ., 3 7 -0 6 3 6 th S t .
  • Page 3 £ £ ‘ A l 13GOW lO U d...
  • Page 4 TUBE PLA C EM EN T C H A R T z c - a i n a o w JLOIId...
  • Page 5: Alignment Instructions

    ALIGNMENT INSTRUCTIONS VIDEO IF ALIGNMENT ontrast control to approximately 3 /4 of I t s rotation toward maximum. Disafc i e the lo ca l o s c illa to r by shorting filam ent pins 4, 5, and & of V3. (Even though th is receiver Incorporates a series filament strin g , shorting th is filament w ill not overload the other tubes enough to damage them.)
  • Page 6: Block Diagram

    V IO SOUND IF RA TIO DET. A U D IO OUTPUT VI2 i 1ST IF AM R R.F. AM P. 1 F AMR D.C.RE5T.4SYNC SER V9 VIDEO AM P. MIXER VIDEO DET. IN 34 3RD I F A M P. osc.
  • Page 7 VOLTAGE AND RESISTANCE MEASUREMENTS RESISTANCE REA D IN G S V O LT A G E READINGS # Measured from pin of V * Keasured from pin 2 of V18, with a /TVK t Keasured from pin 5 of V19 L »...
  • Page 8 Chassis bottom view, inductor & alignment identification PAGE 9...
  • Page 9 C H ASSIS TOP VIEW...
  • Page 10 Chassis bottom view, capacitor identification PAGE i i...
  • Page 11 m(W) (m m (m nm (p)(j£)(n3) fuss) (ss) Chassis bottom view, resistor identification PAGE 12...
  • Page 12 • * < •*- • • • • ♦ • » ■ • VERT. CENT. HO RIZ.HO LD VERT. HOLD FOCUS HOR1Z.CENT. VERT. SIZE CONTROL C A B IN E T -R E A R VIEW ZC-Al 11QOW iOTW...
  • Page 13 p a r t s l i s t a n d d e s c r i p t i o n s TUBES (SYIVANIA o r Equivalent) NT DATA ---------- REPLACEM NOTES BASE STANDARD PILOT ITEM TYPE replacement PART No.
  • Page 14: P A R T S List A N D

    P A R T S LIST A N D D E S C R I P T I O N S EPIACEME NT DATA IDENTIFICATION CODES RA1ING ITEM CORNElt- PILOT ERIE SOLAR AEROVOX SPRAGUE CAP. VOLT DUBIUER PART No. PART No. PART No.
  • Page 15 P A R T S LIST A N D D E S C R I P T I O N S RESISTORS m * m DATA RATING PILOT ITEM IDENTIFICATION CODES RESISTANCE W PART No, filue-Gray-Br. Voltage Divider BTS-660-5* R51 6802 "...
  • Page 16 P A R T S U S T A N D D E S C R I P T I O N S ( C o n t i n u e d ) SPEAKER REPLACEMENT DATA RATING ITEM NOTES PILOT QUAM JENSEN...
  • Page 17 THIS PAGE BLANK...
  • Page 18 Rider service data section...
  • Page 19 PAGE 2-2...
  • Page 20 PAGE 2-3 I - -------------- PILOT RADIO CÓRP. M O D E L TV-371 F R O N T E N D The front end is a separate sub-ch&ssis of the receiver. Mounted on th is chassis are the RF amplifier, converter and o sc illa to r, bandswitch, a ll RF and o sc illa to r c o ils and the converter plate c o il.
  • Page 21 PAGE 2-4 M O D EL T7-37 PIL O T RADIO CORP. CO N TRA ST CO N TRO L This control v a rie s the bias on the RF am plifier and on the f ir s t* second* and th ird I.F .
  • Page 22: High-Voltage Power Supply

    PAGE 2-5 P IL O T ” RAD I O CORP. M O D EL TV-37 f i e r I s used together with the aforementioned trimmer T8 to set horizontal lin e ­ a r ity , HIGH VOLTAGE PO W ER SUPPLY The high voltage power supply of a radio frequency o s c illa to r (25L6GT) and a high voltage r e c t i f i e r (1B3GT).
  • Page 23: Service Precautions

    PAGE 2-6 PILO T RADIXrCOFPT' IlK Ó D E L TV-J” Vacuum tube voltmeter and high voltage multiplier probe for use with this meter to permit measurements up to 3000 v o lts. | SERVICE PRECAUTIONS If a defect in this receiver cannot be remedied by the use of the controls accessible at the rear of the cabinet, the cover w ill have to ^ re“°™d\ J! th is, f ir s t pull the line cord back in order to disengage the in terlo ck p iu g .T h en , remove the ftur bottom screws that hold the cover and the screw and clamp in the...
  • Page 24 PAGE 2-7 MODEL T / - 3 7 P IL O T R A D IO COKF7 Set size controls for approximately normal raster siz e . Align ratio detector as indicated in alignment table at 4.5 Me. Set 4.5 M e trap with slug 11. Align a ll I.F .
  • Page 25: Service Sug G Estio Ns

    PAGE 2-8 TV-37 M O D E L PIL O T R A D IO CORF: adjust slug S ll for maximum D C reading. Reduce output of signal generator to a very low le v e l and readjust S ll.
  • Page 26: Electrical Specifications

    PAGE 2-9 PILOT RADIO CORP. M O D E L TV-3? A. ) Contrast control advanced too far B . ) sync, amplifier inoperative. Check socket voltages and components. 9 . ) Sound and raster, but no picture A. ) Kinescope defective B.
  • Page 27 R A D I O C O R P . TV-37 T O IIP A G E C H A R T Measurements made with receiver operating on 110 volts A.C, at 60 cycles with no signal input. Volume control set at minimum, brightness at minimum, except where noted.
  • Page 28 TUBE FUNCTION OPERATING SIGNAL FOCUS SECOND BOB. VERT. TYPE CA TH O D E CONDITION GRID* GRID ** A N O D E PLATES PIATES Pin Volts Pin Volts Pin Volts Pin Volts Pin Volts Pin Volts Pin Volts Pin Volts Brightness 2550 2550...
  • Page 29 A U G N f fiS T CHART CO N N ECT C O N N ECT U NM D DtniA IED CO N N ECT C O N N ECT O T JT PO T ADJUST R EM A R K S SIGNAL SIGNAL RF SIGNAL...
  • Page 30 ALIGNMENT CHART (C ontinued) LTOCDUIATED CONNECT CONNECT OUTPUT CONNECT CONNECT SWEEP SIGNAL RF SIGNAL SCOPE INDICATOR (VTVM) ADJUST remarks GENERATOR TO: USED FUNCTION GENERATOR TO; S 5,S 6,S 7,S 8, U s u a lly ,a f te r S9 to give S ig n a l g en er­...
  • Page 31 BLOCK DIAGRAM TV-37 VIDEO SECTION FRONT fc.NO...
  • Page 32 0 R IG H T L E S S —f- C O N T R O L 39-6 105-1 2 0 V A C . 60 C Y C L E S 9 -2 |-4 e | oate Pilot TV-37...

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