Zenith C34W37 Series Page 4 Service Manual Download

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DESCRIPTION OF CONTROLS ...........................................5

SPECIFICATIONS...............................................................10

PROGRAMMING CODES...................................................11

ADJUSTMENT INSTRUCTIONS ........................................15

PURITY & CONVERGENCE ADJUSTMENT......................18

PRINTED CIRCUIT BOARDS .............................................21

BLOCK DIAGRAM...............................................................29

EXPLODED VIEW...............................................................30

EXPLODED VIEW PARTS LIST .........................................31

REPLACEMENT PARTS LIST ............................................32

SCHEMATIC DIAGRAM..........................................................

TABLE OF CONTENTS

Summary of Contents for C34W37 Series

Page 1: ...37 Model Series CONTENTS Description of Controls 5 Specifications 10 Adjustment Instructions 15 Diagrams 21 Parts List 31 Schematics Published June 2003 by Technical Publications Zenith Electronics Co...

Page 2: ...ical evidence of damage or deterioration to parts and components for frayed leads or damaged insulation including the AC cord and replace if necessary 5 No lead or component should touch a receiving t...

Page 3: ...o verify the Shutdown Circuit is operating properly proceed with the following procedure Supply 7 5V DC between R446 and R448 on the High Voltage Deflection PCB If there is no raster and set goes into...

Page 4: ...IONS 10 PROGRAMMING CODES 11 ADJUSTMENT INSTRUCTIONS 15 PURITY CONVERGENCE ADJUSTMENT 18 PRINTED CIRCUIT BOARDS 21 BLOCK DIAGRAM 29 EXPLODED VIEW 30 EXPLODED VIEW PARTS LIST 31 REPLACEMENT PARTS LIST...

Page 5: ...andby mode Dims when the TV is switched on Remote control sensor TV VIDEO Menu VOL LEFT RIGHT Volume G G button increases the sound level and vol ume F F button decreases the sound level CH Channel UP...

Page 6: ...to the televi sion either directly or through your cable box Video 1 2 and 3 Inputs Connects the video sig nals from various types of equipment Y PB PR DVD Component Video and HD Component Video Some...

Page 7: ...ight Audio Used for stereo sound from various types of equipment Video in Connects the video signals from any piece of equipment S Video A connection available on some very high end equipment that pro...

Page 8: ...MUTE Switches the sound on or off THUMBSTICK Allows you to navigate the on screen menus and to adjust the system set tings and preferences by moving to an option withF G and selecting the highlighted...

Page 9: ...d options RECORD PAUSE REW FFWD PLAY STOP Control the functions on your VCR VOLUME UP DOWN Increases decreases the sound level INFO When you watch the TV dis plays information on top of the screen Not...

Page 10: ...tenna 75 ohm external terminal for VHF UHF Audio Output W 7W x 2 Supplied accessories Remote control batteries 2 size AA Alkaline battery Screen Aspect Ratio 16 9 External input ports Video Audio inpu...

Page 11: ...MITSUBISHI 004 006 024 028 040 042 109 116 124 146 MTC 004 006 062 101 NAD 015 025 NEC 006 007 016 Brand Codes 019 024 040 056 130 132 134 NIKEI 043 ONKING 043 ONWA 043 OPTONICA 019 081 PANASONIC 034...

Page 12: ...ISHI 013 020 045 046 049 051 059 061 151 MTC 034 040 MULTITECH 024 034 NEC 012 023 039 043 048 NORDMENDE 043 OPTONICA 053 054 PANASONIC 066 070 074 083 133 140 145 PENTAX 013 020 031 033 063 PHILCO 03...

Page 13: ...LITE143 PANASONIC 060 142 PANSAT 121 Brand Codes PERSONAL CABLE 117 PHILIPS 071 PICO 105 PRESIDENT 019 102 PRIMESTAR 030 110 111 PROSAT 072 RCA 066 106 REALISTIC 043 074 SAMSUNG 123 SATELLITE SERVICE...

Page 14: ...01 MOVIE TIME 028 032 NSC 015 028 038 071 073 OAK 016 031 037 053 PANASONIC 044 047 PARAGON 001 PHILIPS 006 012 013 020 065 085 090 PIONEER 034 051 052 063 076 POST NEWS WEEK016 PRUCER 059 PTS 011 048...

Page 15: ...key on the SVC Remote control When it enters to adjustment mode the pattern 14CH being selected it becomes with Normal image 16 9 and the CUT OFF DRIVE data setting 31 2 Connect the oscilloscope grou...

Page 16: ...ly 7 White Balance Adjustment Do screen adjustment first Color Temp must be adjusted from Medium Mode The image condition must be adjusted from Normal condition Manual adjustment is also possible by t...

Page 17: ...COLOR TINT Adjustment 1 Select EZ Adjust 6 Sub Tint Color pressing ADJ key on the SVC Remote control 2 Select SUB COLOR and adjust the 1 and 1 portion not to be classified 3 Select SUB TINT and adjus...

Page 18: ...pletely forward 5 Reconnect the internal degaussing coil 6 Position the beam bender locking rings at the 9 o clock position and the other three pairs of tabs 2 4 and 6 pole magnets at the 12 o clock p...

Page 19: ...rnal degaussing coil 9 Turn the receiver on connect a signal generator to the VHF antenna terminal and apply a crosshatch signal Caution During the convergence adjustment procedure be very careful not...

Page 20: ...ntal lines Fig upper right 17 Temporarily place a rubber wedge at the 5 o clock and 7 o clock positions to hold the horizontal position of the yoke 18 Check the 3 o clock and 9 o clock areas to confir...

Page 21: ...21 PRINTED CIRCUIT BOARD MAIN BOTTOM...

Page 22: ...22 PRINTED CIRCUIT BOARD MAIN TOP...

Page 23: ...23 PRINTED CIRCUIT BOARD MAIN2...

Page 24: ...24 PRINTED CIRCUIT BOARD DIGITAL TOP...

Page 25: ...25 PRINTED CIRCUIT BOARD DIGITAL BOTTOM...

Page 26: ...26 PRINTED CIRCUIT BOARD CPT...

Page 27: ...27 PRINTED CIRCUIT BOARD LINE FILTER PSW...

Page 28: ...28 PRINTED CIRCUIT BOARD CONTROL FRONT A V...

Page 29: ...29 BLOCK DIAGRAM...

Page 30: ...30 EXPLODED VIEW 510 503 530 520 501 550 150 170 112 912 943 400 320 560 330 570 300 121 120 580 310 540 174...

Page 31: ...62G SPRING KNOB 330 5020V00682C BUTTON POWER DU 36FZ20 ABS AF 303S 1KEY P046 10598 400 3809V00A51B BACK COVER ASSEMBLY DU 36FZ20 NON AC02SA 501 4810V00311G BRACKET MAIN DN 36FZ20H AC02BB HIPS 40AF NON...

Page 32: ...IC103 IC103 IC104 IC105 IC106 IC107 IC109 IC110 IC12 IC12 IC1201 IC13 IC14 IC1401 IC1402 IC15 IC1501 IC1502 IC1503 IC1504 IC1505 IC1506 IC16 IC1601 IC1602 IC17 IC18 IC19 IC20 IC200 IC201 IC202 IC202 I...

Page 33: ...SC3875S ALY KEC KRA102S R TP KEC SOT23 CHIP TR CHIP 2SC3875S ALY KEC CHIP 2SC3875S ALY KEC CHIP 2SC3875S ALY KEC CHIP 2SC3875S ALY KEC LOCA NO PART NO DESCRIPTION Q1905 Q1906 Q1907 Q1920 Q1921 Q201 Q2...

Page 34: ...4 0 5W 12 0V 1N4005 TP KEC 1SS133 T72 DO34 90V LOCA NO PART NO DESCRIPTION D1604 D1605 D1606 D1609 D1901 D1903 D1904 D1905 D1907 D1908 D1909 D1913 D1914 D505 D506 D507 D510 D511 D512 D514 D600 D601 D6...

Page 35: ...D 10V M 470UF STD 10V M 47UF STD 50V M 100UF KME 50V M 47UF STD 10V 20 47UF STD 10V 20 LOCA NO PART NO DESCRIPTION C1201 C1202 C1203 C1204 C1205 C1208 C121 C1216 C1217 C1220 C1223 C1224 C1227 C1228 C1...

Page 36: ...0 1UF STD 50V M 1UF STD 50V M 3 3UF STD 50V 20 3 3UF STD 50V 20 22UF STD 50V M LOCA NO PART NO DESCRIPTION C1528 C1602 C1604 C1605 C1607 C1608 C1610 C1611 C1613 C1614 C1616 C1617 C1618 C1620 C1623 C16...

Page 37: ...MVG 16V 20 10UF MVG 16V 20 1000UF STD 10V M 22UF MVG 16V M LOCA NO PART NO DESCRIPTION C394 C397 C398 C400 C402 C406 C407 C41 C41 C42 C422 C424 C426 C428 C43 C430 C437 C439 C440 C442 C47 C503 C504 C5...

Page 38: ...M LUG 105 0 22UF S 50V 5 5 R 470PF 1KV 10 10 0 0033UF 2KV 5 470P 1KV K B TS 4700UF KME 25V M 1000UF STD 16V M 100UF KME 16V M LOCA NO PART NO DESCRIPTION C822 C823 C824 C825 C826 C827 C830 C831 C833...

Page 39: ...SSEMBLY 10P 2 5MM CONNECTOR ASSEMBLY 10P 2 5MM CONNECTOR ASSY 12P SHIELD 500 LOCA NO PART NO DESCRIPTION P905 AR100 AR101 AR300 AR301 AR302 AR303 AR400 AR401 AR402 AR403 AR404 AR405 AR600 AR601 AR602...

Page 40: ...W 5 00 9 1K OHM 1 6 W 5 00 820 OHM 2 W 5 00 4 3K OHM 1 6 W 5 00 3 3K OHM 2 W 5 00 47 OHM 1 2 W 5 00 220 OHM 1 W 5 00 LOCA NO PART NO DESCRIPTION R1554 R1555 R1645 R1646 R1647 R1901 R1967 R1971 R1972 R...

Page 41: ...IC319 J1906 L1001 L1002 L1003 L1004 L1005 L1006 L1405 L801 L801 L802 L802 L802 L803 L804 T1001 T1002 T1003 T1004 T400 T401 T402 T403 T404 T405 T406 T407 T408 T409 T410 T411 T412 X100 X1001 140 313B 1...

Page 42: ...000MHZ RESONATOR CRYSTAL SX1SMD 20250000HZ RESONATOR CRYSTAL SX1SMD 20250000HZ RESONATOR CRYSTAL HC49U 18 432MHZ FUSE SLOW BLOW 5000MA 125V OSCILLATOR VCXO 27MHZ 100 PPM REMOTE CONTROLLER RECEIVER 38K...

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