Zenith R50V26 Magic Focus Circuit

12345678

6-3 ZP26/28 SHEET 3

NOTE: WAVEFORMS AND VOLTAGES WERE MEASURED AT 120VAC,

CHANNEL 5, AND NSTC COLOR BARS.

CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL .

REPLACE ONLY WITH PART NUMBERS SPECIFIED.

Magic Focus Circuit

Contents

Main SERVICE MANUAL CONTENTS i PV154 - 923-03506 ZP26/28 - SAFETY IMPORTANT SAFETY NOTICE GRAPHIC SYMBOLS SERVICE INFORMATION ii Page TABLE OF CONTENTS SECTION 1 .................... OVERVIEW SECTION 2 ..............SERVICE MENU SECTION 3 ....................SERVICING SECTION 4 ...........................PARTS Page R56W28 & R65W28 R50V26 & R60V26 OVERVIEW Page Page REAR CONNECTIONS PV154 - 923-03506 1-4 ZP26/28 - OVERVIEW FRONT CONNECTIONS Y, P P PV154 - 923-03506 1-5 ZP26/28 - REMOTES REMOTE BUTTON DESCRIPTIONS CC quit vol ch PartNumber MBR6045A 924-10098 REMOTE BRAND CODES 923-03460 1-6 ZP26/28 - REMOTES TVs VCRs TV/VCR Combination Codes REMOTE CODES DVD Players Audio CD Players Audio Tape Decks Audio Tuners/Amps Satellite Receivers HD/Set Top Boxes KEY NAME TV Mode VCR Mode Cable Mode DVD Mode HD/STB Mode OPERATING MODE KEY FUNCTIONS KEY NAME TV Mode VCR Mode Cable Mode DVD Mode HD/STB Mode USER MENUS Press select to set Press the Select Button on The Remote Control ToBegin The Alignment System Begin Press select to set Press select to set Page Page Press select to set Page Page Page CIRCUIT DESCRIPTIONS Page Page Page Page Page Page Page Page Page Page Page Page Page Page SERVICE ADJUSTMENTS Page Page Page Page Page Page MODEL PARTS R56W28 MODEL PARTS R60V26 R65W28 Page Page ZP26 Exploded View PV154 - 923-03506 5-1 ZP26/28 - EXPLODED VIEWS SECTION 5 ZP28 Exploded View PV154 - 923-03506 5-3 ZP26/28 - EXPLODED VIEWS 50 Wiring Diagram - Back ANTENNATERMINAL BOARD. Referto the figure below aboutthe assembly if FOCUSPACK leads. BACKSIDE CONVERGENCE 60 Wiring Diagram - Back aboutthe assembly if FOCUSPACK leads. CONVERGENCE P.W.B . 50/60 Wiring Diagram - Front P.W.B. (R) PFS PFS PFT PFC - 56 Wiring Diagram - Back ANTENNATERMINAL BOARD. PS Referto the figure below aboutthe assembly if FOCUSPACK leads. BACK SIDE 65 Wiring Diagram - Back PS aboutthe assembly if FOCUSPACK leads. CONVERGENCE 56/65 Wiring Diagram - Front - + Woofer(R) FRONT SIDE Convergence Circuit 1/2 Convergence Circuit 2/2 Magic Focus Circuit Deflection Power Supply Circuit Deflection Circuit Power Supply Circuit Signal Circuit 1/4 Signal Circuit 2/4 Signal Circuit 3/4 Signal Circuit 4/4 SRS Circuit Velocity Modulator Circuit