Page 1 LGA29A23WM8 A25A23W7 LGA20A05DM7 LGA29A23WM84 A25A23W74 LGA20A05DM74 A25A23W8 LGA20A05DM8 Published by Technical Publications Zenith Electronics Corporation 201 James Record Road - Huntsville, Alabama 35824-1513 Copyright February 1999 by Zenith Electronics Corporation Revised Edition August 1999 Printed in U.S.A. ZEN REV2 600...
Page 2 When servicing this product, under no circumstances should the original design be modified or altered without permission from Zenith Electronics Corporation. All components should be replaced only with types identical to those in the original circuit and their physical location, wiring and lead dress must conform to original layout upon completion of repairs.
Page 3 SECTION 4 PARTS OVERVIEW ............. 1-1 GA-1 MODELS ............4-1 MODEL INFORMATION ........1-1 A19A02D ............4-1 SC3492A MODEL REMOTE CONTROL ......1-2 A19A02D4 ............. 4-1 MBR3447 MODEL REMOTE CONTROL ......1-3 A19A02D7 ............4-1 MBR3447A MODEL REMOTE CONTROL ......1-4 A19A02D74 ............
Page 4: Table Of Contents
TABLE OF CONTENTS A27A23W84 ..........4-23 A25A12D4 ............ 4-11 A25A74R ............4-11 A27A74R ............4-23 A27A74R8 ............ 4-23 A25A74R7 ............ 4-12 A25A74R8 ............ 4-12 A27A76R ............4-24 A27A76R8 ............ 4-24 A25A76R ............4-12 LGA26A23WM ..........4-24 A25A76R7 ............ 4-12 A25A76R8 ............ 4-13 LGA26A23WM6 ..........
Page 5 OVERVIEW The GA series chassis was developed for Sentry 2, screen A-18577. sizes 19" through 27" stereo and mono models. The chas- 9-1950 (19/20V, Mono) Main Module w/2 Jack Assy, A- sis is a single sided printed circuit board. One board is 18577-01.
Page 6 SC3492A MODEL REMOTE CONTROL POWER Press to turn MUTE TV ON or OFF Press to turn off sound while picture remains. Press again Press to access closed captions. to restore sound. TIMER FLSHBK Press (and repeat) to Press to return to last TV activate the sleep timer channel you were watching.
Page 7 MBR3447 MODEL REMOTE CONTROL POWER Turns TV On or Off. FLASHBK (Flashback) Returns to previous Channel. MODE Selects the remote’s mode of operation SURF MUTE Turns Surf Channel On/Off Turns sound Off and On while picture remains. VOLUME (Left/Right) CHANNEL (Up/Down) Increases TV’s sound level.
Page 8 MBR3447A MODEL REMOTE CONTROL POWER Turns TV On or Off. FLASHBK (Flashback) Returns to previous Channel. MODE Selects the remote’s mode of operation SURF MUTE Turns Surf Channel On/Off Turns sound Off and On while picture remains. VOLUME (Left/Right) CHANNEL (Up/Down) Increases TV’s sound level.
Page 9 MBR3446 MODEL REMOTE CONTROL POWER Turns TV On or Off. FLASHBK (Flashback) Returns to previous Channel. MODE Selects the remote’s mode of operation A Key MUTE Special feature of some TV’s Turns sound Off and On while picture remains. VOLUME (Left/Right) CHANNEL (Up/Down) Increases TV’s sound level.
Page 10 Auto Find. programmed for most common codes. For other brands, CABLE BOX or if your remote fails to control your Zenith products, These remotes can control cable/converter box volume you’ll have to program the remote. and muting if available on your equipment.
Page 11 Realistic 105, 123, 124 502, 504, 505 Sansui Zenith HD Set Top 385 Sampo Sanyo 206, 212, 247 Zenith N/C Set Top 384, 395 Samsung 103, 119, 134, 141 DVD PLAYERS Scott 204, 205, 233, 243 Sanyo 108, 109, 118...
Page 13 INSTALLERS MENU 1164-01/02 MICRO INSTALLER’S MENU 00 F MODE: (Factory Mode) Use Select key to select ACCESS item #00, which is the first item in the Service Menu, Access the Service Menu by using the remote control or the Factory mode. This item is used by the factory the keyboard on the front of the set.
Page 14 Level 0 and 2 is used for Private Label sets. Level 1 26 Scroll: Selects the method the User menus will and 2 are used for Zenith sets. In the private label appear on the screen. Scroll Off is 0.
Page 15 24 B Gain 0-254 25 C Type 26 Scroll 27 6 Keys 28 SpkrSw 29 5 Jack 30 St & Sap * 04 Level 0 and 1 are used for Zenith sets. Level 0 is Private Label. CM150 GA - INSTALLER MENUS...
Page 16 0-254 24 B Gain 0-254 25 C Type 26 Scroll 27 6 Keys 28 SpkrSw 29 Surf 30 Vcurve * 04 Level 0 and 1 are used for Zenith sets. Level 0 is Private Label. CM150 GA - INSTALLER MENUS...
Page 17 Level 0 and 2 is used for Private Label sets. Level 1 Other unusual things also happen when the factory and 2 are used for Zenith sets. In the private label mode in “On”, for example, the AC power on feature is mode the IR code is 21 or 121.
Page 18 INSTALLERS MENU 221-01305-01 (continued) 33 W Band: (Wide Band Low Frequency Separation) 18 H Afc: There are two setting 0 and 1. Setting is Range is 0 - 63. usually 1. 34 PiP Z1: Adjusts horizontal position of the insert 19 WhComp: (White Compression) There are two picture on left side.
Page 19 INSTALLERS MENU 221-01305-01 (continued) FACTORY RECOMMENDED SETTINGS 221-01305-01 General Setting (Blue) Factory Mode 0 ITEM RANGE 25” 27" 00 F Mode 01 Pre Px 02 V Pos 0-24 03 H Pos 0-13 04 Level 05 Band 06 AC On Technical Settings (Black) Factory Mode 1 07 RF Bpf 08 3.58T 09 RF Brt...
Page 21 SERVICE INFORMATION SERVICING GA Shutdown Circuits GA2 & GA3 ICX2200 ICX2200 DX3003 FROM_RESISTOR_DIVIDER ZDX3004 DX3005 FROM_RESISTOR_DIVIDER DX3002 GENERAL INFORMATION HIGH-VOLTAGE AND X-RADIATION PROTECTION NOTE: 19" and 20" GA1 chassis is a line connected A potential source of X-rays is the picture tube, if the chassis.
Page 22 SERVICING (continued) HV MEASUREMENT PROCEDURE POWER ON (9-1869/70/71 AND 9-1950) Apply signal through the video generator, or tune the Keyboard input at IC6000 pin 7 and 8 TV color receiver to crosshatch pattern. Connect an ac- IR input at IC6000 pin 15 curate HV meter between the picture tube anode and Power “On”...
Page 23: Video Processor
SERVICING (continued) +35 volts DC at CX3272 +25 volts pin 6 +215 volts DC at junction CX3296 and RX3277 Vertical out pin 2 CRT filament at pins 1 and 2 of connector 2F5 HORIZONTAL CIRCUIT Horizontal drive to base of Q3201 predriver VIDEO PROCESSOR ICX2200 Key Operating Signals: Driver transformer output base of Q3202...
Page 24 SERVICE ADJUSTMENTS SERVICING (continued) scale from black to white. If black level is too high volt P-P at emitter of Q9706. readjust the item #9 RF Brightness. 2. Audio Balance (19"/20" Models) Adjusts R9745 for 8. Return the color level control to normal. equal output at collectors of Q9701 and Q9703.
Page 25 SERVICING (continued) the chroma Off. Check that the set displays a good gray scale from black to white. If black level is too high, readjust the item #9 RF Brightness. 7. Return the color level control to preset. 8. Select “Warm” in the user video menu under Color Temp.
Page 26 SERVICING (continued) PURITY & CONVERGENCE SETUP PROCEDURE CONVERGENCE ADJUSTMENT PRELIMINARY SETUP 1. Release locking assembly 1. Allow receiver to warm up for 15 to 20 minutes. 2. Connect crosshatch generator to the receiver and 2. Degauss receiver. adjust static (center) convergence as follows: 3.
Page 27 SERVICING (continued) VERTICAL-TILT WEDGE ADJUSTMENT IMPROVING CRT CORNER PURITY The vertical lines at 6 and 12 o’clock are converged by CRTs that display corner purity problems even after fol- vertically tilting the yoke and inserting a wedge at the lowing the service procedures can be modified with a top of the yoke until it is firmly seated between the CRT picture correction kit (P/N 949-50).
Page 28 IC DESCRIPTIONS IC DESCRIPTIONS IC6001 4K Bit Serial EEPROM 221-00745-04 Pin Configuration 9&& AT24C04 ATMEL 6&/ CM150 GA - IC DESCRIPTIONS...
Page 29 IC DESCRIPTIONS (continued) Pin Configuration 221-00907 Pilot detector Pilot in Pilot detector Pilot out Resonator Loop filter Stereo/mono select Loop filter Stereo presence Composite input Ground De-emphasis adjust BPF upper corner BPF lower corner 1/2 VCC 1/2 VCC bypass Det. bypass Det.
Page 30 IC DESCRIPTIONS (continued) Pin Definition 221-00981 Test Circuit 3-10 CM150 GA - IC DESCRIPTIONS...
Page 31 IC DESCRIPTIONS (continued) IC6000 3-11 CM150 GA - IC DESCRIPTIONS...
Page 32 IC DESCRIPTIONS (continued) HSYNC P52/R VSYNC P53/G P50/AD4 P54/B IC6000 P41/INT2 P55/OUT1 221-01305 P42/TIM2 P04/PWMO P43/TIM3 P05/PWM1 P24/AD3 P06/PWM2 P25/AD2 P07/PWM3 P26/AD1 P27/AD5 P00/PWM4 P01/PWM5 P02/PWM6 P10/OUT 2 P17/SIN P11/SCL1 P44/INT1 P12/SCL1 P45/SOUT P13/SDA1 P46/SCLK P14/SDA2 AVCC HLF/AD6 P16/INT3 P72/RVCO P71/VHOLD P70/CVIN CNVSS...
Page 33 SECTION 4 MODEL PARTS GA-1 MODELS A19A02D74 Part# Description A19A02D 009-01990-01 MODULE, MAIN, 19, 20V MONAURAL, GA1 CHASSIS Part# Description 014-12290-16 CABINET FRONT, TV, MOLDED PLASTIC, 19V 009-01869-01 MODULE, MAIN, 19, 20V MONAURAL, GA1 CHASSIS MONAURAL CTV 014-12290-14 CABINET FRONT, TV, MOLDED PLASTIC, 19V...
Page 34 MODEL PARTS A-18681 LINE CORD ASSY , WITH YEONHO CONNECTOR A-18588 LINE CORD ASSY , WITH YEONHO CONNECTOR A-18695-11 GND STRAP ASSY , CRT A-18695-11 GND STRAP ASSY , CRT A19A11D A19A11D74 Part# Description Part# Description 009-01870-01 MODULE, MAIN, 19, 20V STEREO, GA1 CHASSIS 009-01991-01 MODULE, MAIN, 19, 20V STEREO, GA1 CHASSIS 014-12289-09...
Page 35 MODEL PARTS A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND A-18693 CRT ASSEMBLY, WITH DEFLECTION YOKE PURITY A-18695-09 GND STRAP ASSY , CRT A-18671 CRT AND YOKE, ASSEMBLY A20A22D84 A-18681 LINE CORD ASSY , WITH YEONHO CONNECTOR Part# Description A-18695-11 GND STRAP ASSY , CRT 009-01992-01 MODULE, MAIN, 19, 20V WITH MTS, GA1 CHASSIS A20A22D...
Page 36 MODEL PARTS 152-00338 WEDGE, YOKE SPACER 001-00224-06 ANTENNA, DIPOLE 192-00916 LENS, IR 014-12290-14 CABINET FRONT, TV, MOLDED PLASTIC, 19V MONAURAL CTV 206-03379 INSTR BOOK, OPERATION GUIDE, DAEWOO, SPANISH 014-12291-04 CABINET REAR, TV, MOLDED PLASTIC, 19V MONAURAL, STEREO A-14323 BALUN ASSEMBLY 020-04330-32 COIL, DEGAUSSER A-18681...
Page 37 MODEL PARTS 192-00916 LENS, IR 014-12290-14 CABINET FRONT, TV, MOLDED PLASTIC, 19V MONAURAL CTV 206-03379 INSTR BOOK, OPERATION GUIDE, DAEWOO, SPANISH 014-12291-05 CABINET REAR, TV, MOLDED PLASTIC, 19V MONAURAL, STEREO A-14323 BALUN ASSEMBLY 020-04330-32 COIL, DEGAUSSER A-18588 LINE CORD ASSY , WITH YEONHO CONNECTOR 046-10578 KNOB ARRAY, PUSH BUTTON, 6 POSITION A-18695-11...
Page 38 MODEL PARTS 192-00917 LENS, IR 049-01369 SPEAKER, OVAL, 6 X 9 CM 206-03330-01 INSTR BOOK, OPERATION GUIDE, ADDENDUM 050-02576-04 CONNECTOR&CABLE, ASSY, 2.5MM, 4 CONTACT, 1 UP GA,MONO,SC,SPAN 124-00213-16 SPACE COMMAND, TRANSMITTER, TV ONLY 206-03379 INSTR BOOK, OPERATION GUIDE, DAEWOO, 152-00335 WEDGE, YOKE SPACER, POSITIONER SPANISH 192-00916...
Page 39 024-03346 COVER, UNUSED SPEAKER OPENINGS 192-00917 LENS, IR 046-10577 KNOB ARRAY, PUSH BUTTON, 6 POSITION 206-03380 INSTR BOOK, OPERATION GUIDE, ZENITH, SPANISH 049-01369 SPEAKER, OVAL, 6 X 9 CM A-14323 BALUN ASSEMBLY 050-02576-04 CONNECTOR&CABLE, ASSY, 2.5MM, 4 CONTACT, 1 UP...
Page 40 WEDGE, YOKE SPACER, POSITIONER MONAURAL, STEREO 192-00917 LENS, IR 020-04330-31 COIL, DEGAUSSER 206-03380 INSTR BOOK, OPERATION GUIDE, ZENITH, SPANISH 046-10577 KNOB ARRAY, PUSH BUTTON, 6 POSITION A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND PURITY 049-01369 SPEAKER, OVAL, 6 X 9 CM 050-02576-02 CONNECTOR&CABLE, ASSY, 2.5MM, 4 CONTACT, 1 UP...
Page 41 WEDGE, YOKE SPACER, POSITIONER 046-10578 KNOB ARRAY, PUSH BUTTON, 6 POSITION 192-00917 LENS, IR 049-01368-03 SPEAKER, OVAL, 6 X 13 CM 206-03381 INSTR BOOK, OPERATION GUIDE, ZENITH, SPANISH 050-01989 CONNECTOR AND, CABLE ASSEMBLY A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND 095-04456-03 DEFLECTION YOKE PURITY...
Page 42 MODEL PARTS A63AGD01X VACUUM TUBE, CRT, COLOR, 25 INCH DIAGONAL 152-00335 WEDGE, YOKE SPACER,POSITIONER 124-00213-16 SPACE COMMAND, TRANSMITTER, TV ONLY 192-00916 LENS, IR 152-00335 WEDGE, YOKE SPACER,POSITIONER 206-03369 INSTR BOOK, OPERATION GUIDE 192-00916 LENS, IR A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND PURITY 206-03370 INSTR BOOK, OPERATION GUIDE...
Page 43: A25A12D4
MODEL PARTS 152-00335 WEDGE, YOKE SPACER,POSITIONER 124-00213-16 SPACE COMMAND, TRANSMITTER, TV ONLY 192-00916 LENS, IR 152-00335 WEDGE, YOKE SPACER,POSITIONER 206-03370 INSTR BOOK, OPERATION GUIDE 192-00916 LENS, IR A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND 206-03370 INSTR BOOK, OPERATION GUIDE PURITY A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND A-18681-01 LINE CORD ASSY , WITH YEONHO CONNECTOR...
Page 44: A25A74R7
MODEL PARTS 095-04456-03 DEFLECTION YOKE 124-00212-35 SPACE COMMAND, TRANSMITTER, MBR3447 A63AGD01X VACUUM TUBE, CRT, COLOR, 25 INCH DIAGONAL 152-00335 WEDGE, YOKE SPACER,POSITIONER 124-00212-35 SPACE COMMAND, TRANSMITTER, MBR3447 192-00876 CRYSTAL WINDOW , IR 152-00335 WEDGE, YOKE SPACER,POSITIONER 197-00180-01 CUP, CABINET BACK 192-00876 CRYSTAL WINDOW , IR 206-03450...
Page 45: A25A76R8
MODEL PARTS A63AFW36X VACUUM TUBE, CRT, COLOR, 25 INCH DIAGONAL 206-03370 INSTR BOOK, OPERATION GUIDE 110-00687-59 GRILLE CLOTH, RECTANGULAR A-18588-01 LINE CORD ASSY , WITH YEONHO CONNECTOR 124-00212-35 SPACE COMMAND, TRANSMITTER, MBR3447 A-18695-02 GND STRAP ASSY , CRT 152-00335 WEDGE, YOKE SPACER,POSITIONER A27A11D4 192-00876 CRYSTAL WINDOW , IR...
Page 46: A27A12D4
MODEL PARTS 124-00213-16 SPACE COMMAND, TRANSMITTER, TV ONLY 020-04330-30 COIL, DEGAUSSER 152-00335 WEDGE, YOKE SPACER,POSITIONER 046-10578 KNOB ARRAY, PUSH BUTTON, 6 POSITION 192-00916 LENS, IR 049-01368-03 SPEAKER, OVAL, 6 X 13 CM 206-03379 INSTR BOOK, OPERATION GUIDE, DAEWOO, SPANISH 050-02576-02 CONNECTOR&CABLE, ASSY, 2.5MM, 4 CONTACT, 1 UP A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND...
Page 47: Lga26A02Dm74
LINE CORD ASSY , WITH YEONHO CONNECTOR 152-00335 WEDGE, YOKE SPACER,POSITIONER A-18695-02 GND STRAP ASSY , CRT 192-00916 LENS, IR 206-03380 INSTR BOOK, OPERATION GUIDE, ZENITH, SPANISH LGA26A02DM74 A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND Part# Description PURITY 009-01977-01 MODULE, MAIN, 25V MONAURAL, GA CHASSIS...
Page 48: Lga26A11Dm7
WEDGE, YOKE SPACER,POSITIONER A63AGD01X VACUUM TUBE, CRT, COLOR, 25 INCH DIAGONAL 192-00916 LENS, IR 124-00212-58 SPACE COMMAND, TRANSMITTER, MBR3447A 206-03380 INSTR BOOK, OPERATION GUIDE, ZENITH, SPANISH 152-00335 WEDGE, YOKE SPACER,POSITIONER A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND 192-00916 LENS, IR PURITY...
Page 49: Lga26A02Gm8
152-00335 WEDGE, YOKE SPACER,POSITIONER 192-00916 LENS, IR 192-00916 LENS, IR 206-03379 INSTR BOOK, OPERATION GUIDE, DAEWOO, SPANISH 206-03380 INSTR BOOK, OPERATION GUIDE, ZENITH, SPANISH A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND PURITY A-14323 BALUN ASSEMBLY A-14323 BALUN ASSEMBLY A-18681-01 LINE CORD ASSY , WITH YEONHO CONNECTOR...
Page 50: Lga29A12Dm4
WEDGE, YOKE SPACER,POSITIONER 095-04456-03 DEFLECTION YOKE 192-00916 LENS, IR A63AGD01X VACUUM TUBE, CRT, COLOR, 25 INCH DIAGONAL 206-03383 INSTR BOOK, OPERATION GUIDE, ZENITH, SPANISH 124-00212-35 SPACE COMMAND, TRANSMITTER, MBR3447 A-14323 BALUN ASSEMBLY 152-00335 WEDGE, YOKE SPACER,POSITIONER A-18681-01 LINE CORD ASSY , WITH YEONHO CONNECTOR...
Page 51: A25A22Bt64
MODEL PARTS A25A22BT64 012-10694 METAL STAMPING , BRACKET, CRT SUPPORT 012-10832 METAL STAMPING , BRACKET, CRT MOUNTING Part# Description 012-10832-01 METAL STAMPING , BRACKET, CRT MOUNTING 009-01996 MODULE, MAIN, 25V MTS, GA3 CHASSIS 012-10858-04 MOLDED PLASTIC , PANEL, JACK PACK, CA CHASSIS 012-10571 METAL STAMPING , BRACKET, CRT MOUNTING 014-12038-02...
Page 52: A25A23W
MODEL PARTS 012-10858-04 MOLDED PLASTIC , PANEL, JACK PACK, CA CHASSIS 050-02576 CONNECTOR&CABLE, ASSY, 2.5MM, 4 CONTACT, 1 UP 014-12038-02 CABINET TRAY, TV, MOLDED PLASTIC 095-04456-03 DEFLECTION YOKE 014-12229-16 CABINET FRONT, TV, MOLDED PLASTIC A63AGD01X VACUUM TUBE, CRT, COLOR, 25 INCH DIAGONAL 014-12230-03 CABINET REAR, TV, MOLDED PLASTIC 124-00212-35...
Page 53: A25A23W7
MODEL PARTS A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND A-18232 KEYBOARD ASSEMBLY, WITH IR RECEIVER PURITY A25A23W8 A-18681-01 LINE CORD ASSY , WITH YEONHO CONNECTOR Part# Description A-18695-10 GND STRAP ASSY , CRT 009-02041 MODULE, MAIN, 25V MTS, GA3 CHASSIS 046-10554 KNOB ARRAY, PUSH BUTTON, 10 POSITIONS 012-10832 METAL STAMPING , BRACKET, CRT MOUNTING...
Page 54: A27A22Bt
MODEL PARTS 012-10858-04 MOLDED PLASTIC , PANEL, JACK PACK, CA CHASSIS 095-03797-05 DEFLECTION YOKE 014-12143-02 CABINET TRAY, MOLDED PLASTIC A68AGD01X VACUUM TUBE, CRT, COLOR, 27 INCH DIAGONAL 014-12181-09 CABINET REAR, TV, MOLDED PLASTIC 124-00212-35 SPACE COMMAND, TRANSMITTER, MBR3447 014-12187-13 CABINET FRONT, TV, MOLDED PLASTIC 152-00335 WEDGE, YOKE SPACER,POSITIONER 020-04330-35...
Page 55: A27A23W
MODEL PARTS A27A23W 046-10588 KNOB ARRAY, PUSH BUTTON, 6 POSITION 194-02663 PAD, BUTTONS Part# Description A-18769 KEYBOARD ASSEMBLY, 6 BUTTON 009-01997 MODULE, MAIN, WITH MTS, 27V GA3 CHASSIS 012-10858-04 MOLDED PLASTIC , PANEL, JACK PACK, CA CHASSIS A27A23W84 014-12281-04 CABINET FRONT, TV, MOLDED PLASTIC Part# Description 014-12282-04...
Page 56: A27A76R
050-01699-06 CONNECTOR&CABLE, ASSY, 2.5MM, 5 CONTACT, 2 UP 192-00858-01 LENS, PRIMARY CONTROLS AND IR 050-02576-01 CONNECTOR&CABLE, ASSY, 2.5MM, 4 CONTACT, 1 UP 206-03414 INSTR BOOK, OPERATION GUIDE, ZENITH, SPANISH 057-09055-39 ESCUTCHEON, CRT A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND PURITY 095-03797-05...
Page 57: Lga26A23Wm7
DEFLECTION YOKE, 25V HIBI COMERCIAL 192-00858-01 LENS, PRIMARY CONTROLS AND IR A63AFW36X VACUUM TUBE, CRT, COLOR, 25 INCH DIAGONAL 206-03414 INSTR BOOK, OPERATION GUIDE, ZENITH, SPANISH 124-00212-35 SPACE COMMAND, TRANSMITTER, MBR3447 A-07690-06 MAGNET ASSEMBLY, STATIC CONVERGENCE AND 152-00335 WEDGE, YOKE SPACER,POSITIONER...
Page 58: Lga29A23Wm4
CABINET REAR, TV, MOLDED PLASTIC 192-00912 LENS, PRIMARY CONTROLS AND IR 020-04330-30 COIL, DEGAUSSER 206-03414 INSTR BOOK, OPERATION GUIDE, ZENITH, SPANISH 049-01368-03 SPEAKER, OVAL, 6 X 13 CM A-14323 BALUN ASSEMBLY 050-01699-03 CONNECTOR&CABLE, ASSY, 2.5 MM, 5 CONTACT, 2 UP...
Page 59 GA1 MODULE PARTS PART# DESCRIPTION PART# DESCRIPTION ABCDEFGHIJKLMNOP 3T8 058-00643-02 PLUG, MULTIPRONG, 2 POSITION CDEFKLMN C1450 022-08312-04A CAP, 1 MFD 20% 50V, ELECTRO ABCDEFGHIJKLMNOP 3Y3 058-00643-04 PLUG, MULTIPRONG, 4 POSITION CDEFGHKLMNOP C1451 022-08312-04A CAP, 1 MFD 20% 50V, ELECTRO 058-00526-05 PLUG, 0.098P 5 CONTACT/ CDEFKLMN C1490...
Page 60 PART# DESCRIPTION PART# DESCRIPTION ABCDEFGHIJKLMNOP C6006 022-08312-04A CAP, 1 MFD 20% 50V, ELECTRO ABCDEFGHIJKLMNOP CX2106 022-08310-17 CAP, 2200 MFD 20% 25V, ELECTRO ABCDEFGHIJKLMNOP C6007M 022-08367-08A CAP, 1,000 PFD 20% 50V, CERAMIC CHIP ABCDEFGHIJKLMNOP CX2108 022-08311-13 CAP, 220 MFD 20% 35V, ELECTRO ABCDEFGHIJKLMNOP C6008M 022-08366A CAP, 220 PFD 10% 50V, CERAMIC CHIP...
Page 61 PART# DESCRIPTION PART# DESCRIPTION CDEFKLMN IC0850 221-01163 INTEGRATED CKT, AUDIO PWR AMP, W/ VOL ABCDEFGHIJKLMNOP Q2205 121-01311A TRANSISTOR, PNP, SILICON CTRL ABCDEFGHIJKLMNOP Q3201 121-01290 TRANSISTOR, NPN, SILICON CDKL IC1400 221-00907 IC , STEREO DECODER Q3202 121-01148 TRANSISTOR, NPN, SILICON, H.O.T., 5A ABCDEFGHIJKLMNOP IC2101 083-09299-02 STRIP, EDGE PROTECTOR, NYLON...
Page 62 PART# DESCRIPTION PART# DESCRIPTION CDEFKLMN R1451M 063-11059-61A RESISTOR, CHIP, 3.3K OHM 5% 1/10W ABCDEFGHIJKLMNOP R3204 063-11214-16 RESISTOR, FILM, 0.51 OHM 5% 1/2W CDEFKLMN R1452M 063-11059-75A RESISTOR, CHIP, 12K OHM 5% 1/10W ABCDEFGHIJKLMNOP R3205 063-11156B RESISTOR, FILM, 1 OHM 5% 1W CDEFKLMN R1453M 063-11059-61A...
Page 63 PART# DESCRIPTION PART# DESCRIPTION ABCDEFGHIJKLMNOP R6035M 063-11060-21A RESISTOR, CHIP, 1 MEG OHM 5% 1/10W EFGHMNOP R9739M 063-11059-49A RESISTOR, CHIP, 1K OHM 5% 1/10W ABCDEFGHIJKLMNOP R6037M 063-11059-83A RESISTOR, CHIP, 27K OHM 5% 1/10W EFGHMNOP R9740 063-10235-40 RESISTOR, FILM, 47 OHM 5% 1/4W ABCDEFGHIJKLMNOP R6038 063-10235-56 RESISTOR, FILM, 220 OHM 5% 1/4W...
Page 64 -4-6-...
Page 65 GA2 MODULE PARTS PART# DESCRIPTION PART# DESCRIPTION 058-00526-05 PLUG, 0.098P 5 CONTACT CDEFGHIJK C1437M 022-08366-16A CAP, 4,700 PFD 10% 50V, CERAMIC CHIP ABCDEFGHIJKL 3T8 058-00643-02 PLUG, MULTIPRONG, 2 POSITION CDEFGHIJK C1440 022-08049-08A CAP, 0.0047 MFD 10% 50V, POLY DHIJKL 058-00546-04 PLUG, MULTIPRONG, 4 POSITION CDEFGHIJK C1441...
Page 66 PART# DESCRIPTION PART# DESCRIPTION ABCDEFGHIJKL C6001M 022-08352-38A CAP, 120 PFD 5% 50V, CERAMIC CHIP ABCDEFGHIJKL CX3003 022-08312-08A CAP, 10 MFD 20% 50V, ELECTRO ABCDEFGHIJKL C6002M 022-08364-52A CAP, 470 PFD 5% 50V, CERAMIC CHIP ABCDEFGHIJKL CX3004 022-08312-08A CAP, 10 MFD 20% 50V, ELECTRO ABCDEFGHIJKL C6003M 022-08364-52A CAP, 470 PFD 5% 50V, CERAMIC CHIP...
Page 67 PART# DESCRIPTION PART# DESCRIPTION P0026K 058-00526-05 PLUG, 0.098P 5 CONTACT ABCDEFGHIJKL DX3403 103-00467A DIODE, LOW VOLTAGE GENERAL, SILICON ABCDEFGHKL P0049G 058-00526-05 PLUG, 0.098P 5 CONTACT ABCDEFGHIJKL DX3404 103-00467A DIODE, LOW VOLTAGE GENERAL, SILICON ABCDEFGHKL P0052C 050-01666-07 CONNECTOR&CABLE, ASSY, 2.5MM, 5 CONTACT, ABCDEFGHIJKL DX3405 103-00254-01 DIODE, LOW VOLTAGE GENERAL, SILICON...
Page 68 PART# DESCRIPTION PART# DESCRIPTION ABCDEFGHIJKL R1226M 063-11059-09A RESISTOR, CHIP, 22 OHM 5% 1/10W ABCDEFGHIJKL R2214M 063-11059-33A RESISTOR, CHIP, 220 OHM 5% 1/10W ABCDEFGHIJKL R1227M 063-11059-41A RESISTOR, CHIP, 470 OHM 5% 1/10W ABCDEFGHIJKL R2215M 063-11059-33A RESISTOR, CHIP, 220 OHM 5% 1/10W ABCDEFGHIJKL R1228 063-10235-76 RESISTOR, FILM, 1.5K OHM 5% 1/4W...
Page 69 PART# DESCRIPTION PART# DESCRIPTION ABCDEFGHIJKL R3421 063-10235-82 RESISTOR, FILM, 2.7K OHM 5% 1/4W ABCDEFGHIJKL R6039 063-10235-56 RESISTOR, FILM, 220 OHM 5% 1/4W ABCDEFGHIJKL R3422M 063-11059-73A RESISTOR, CHIP, 10K OHM 5% 1/10W ABCDEFGHIJKL R6040M 063-11059A RESISTOR, CHIP, 0 OHM 5% 1/10W ABCDEFGHIJKL R3423 063-10235-88 RESISTOR, FILM, 4.7K OHM 5% 1/4W...
Page 70 PART# DESCRIPTION PART# DESCRIPTION ABCDEFGHIJKL RX5127 063-10836-98B RESISTOR, FILM, 12K OHM 5% 2W ABCDEFGHIJKL RX5128 063-10836-98B RESISTOR, FILM, 12K OHM 5% 2W ABCDEFGKL SW0001 085-01832 SWITCH, PUSH-BUTTON, NON LOCKING, SPST ABCDEFGKL SW0002 085-01832 SWITCH, PUSH-BUTTON, NON LOCKING, SPST ABCDEFGKL SW0003 085-01832 SWITCH, PUSH-BUTTON, NON LOCKING, SPST ABCDEFGKL...
Page 71 GA3 MODULE PARTS PART# DESCRIPTION PART# DESCRIPTION ABCDE 058-00526-05 PLUG, 0.098P 5 CONTACT ABCDE C1428 022-08312-07A CAP, 4.7 MFD 20% 50V, ELECTRO ABCDE 058-00643-02 PLUG, MULTIPRONG, 2 POSITION ABCDE C1430 022-08309-12A CAP, 100 MFD 20% 16V, ELECTRO ABCDE 058-00643-04 PLUG, MULTIPRONG, 4 POSITION ABCDE C1431M 022-08368-20A...
Page 72 PART# DESCRIPTION PART# DESCRIPTION C3248 022-08312-07A CAP, 4.7 MFD 20% 50V, ELECTRO ABCDE C6060M 022-08352-28A CAP, 47 PFD 5% 50V, CERAMIC CHIP ABCDE C3269 022-07786-10C CAP, 470 PFD 10% 500V, CERAMIC DISC BCDE C6061M 022-08352-28A CAP, 47 PFD 5% 50V, CERAMIC CHIP C3270 022-08312-07A CAP, 4.7 MFD 20% 50V, ELECTRO...
Page 73 PART# DESCRIPTION PART# DESCRIPTION ABCDE D2203 103-00461A DIODE, FAST SWITCHING, HIGH CONDUCTANCE ABCDE L6000 020-03907-24A COIL, 100 MICROHENRY, RCF, FIXED ABCDE D2206 103-00461A DIODE, FAST SWITCHING, HIGH CONDUCTANCE ABCDE L6001 020-04129-16 COIL, 4.7 MICROHENRY, RCF, FIXED ABCDE D2215 103-00471A DIODE, LOW VOLTAGE GENERAL, SILICON ABCDE L6002 020-04277-70A...
Page 74 PART# DESCRIPTION PART# DESCRIPTION ABCDE R1222M 063-11059-73A RESISTOR, CHIP, 10K OHM 5% 1/10W ABCDE R2152M 063-11059-65A RESISTOR, CHIP, 4.7K OHM 5% 1/10W ABCDE R1223M 063-11059-25A RESISTOR, CHIP, 100 OHM 5% 1/10W ABCDE R2153M 063-11059-33A RESISTOR, CHIP, 220 OHM 5% 1/10W ABCDE R1224M 063-11059-25A...
Page 75 PART# DESCRIPTION PART# DESCRIPTION ABCDE R2914 063-10235-48 RESISTOR, FILM, 100 OHM 5% 1/4W ABCDE R6046M 063-11059-65A RESISTOR, CHIP, 4.7K OHM 5% 1/10W ABCDE R2916 063-10235-72 RESISTOR, FILM, 1K OHM 5% 1/4W ABCDE R6047M 063-11059-65A RESISTOR, CHIP, 4.7K OHM 5% 1/10W ABCDE R2920 063-10235-96...
Page 76 PART# DESCRIPTION PART# DESCRIPTION ABCDE RX3428 063-10559-24 RESISTOR, FILM, 10 OHM 5% 1/4W ABCDE RX3431 063-10244-26 RESISTOR, FILM, 180K OHM 5% 1/2W ABCDE RX5126 063-10836-98B RESISTOR, FILM, 12K OHM 5% 2W ABCDE RX5127 063-10836-98B RESISTOR, FILM, 12K OHM 5% 2W ABCDE RX5128 063-10836-98B...
Page 79: Ga1 19/20V Mono Table Top Set Exploded View
GA1 19/20V MONO TABLE TOP SET EXPLODED VIEW REF DESCRIPTION A19A02D A19A02D4 A19A02D7 A19A02D74 A19A02D8 A19A02D84 LGA20A02DM7 LGA20A02DM74 LGA20A02DM8 LGA20A02DM84 LGA20A02GM FRONT CABINET 014-12290-14 014-12290-16 014-12290-14 014-12290-16 014-12290-14 014-12290-16 014-12290-14 014-12290-16 014-12290-14 014-12290-16 014-12290-13 SPEAKER 049-01369 049-01369 049-01369 049-01369 049-01369...
Page 80: Ga1 19/20V Stereo Table Top Set Exploded View
GA1 19/20V STEREO TABLE TOP SET EXPLODED VIEW REF DESCRIPTION A19A11D A19A11D4 A19A11D7 A19A11D74 A19A11D8 A19A11D84 A20A22D A20A22D4 A20A22D8 A20A22D84 LGA20A11DM FRONT CABINET 014-12289-09 014-12289-10 014-12289-09 014-12289-10 014-12289-09 014-12289-10 014-12292-04 014-12292-04 014-12292-04 014-12292-04 014-12289-09 SPEAKER 049-01369 (2) 049-01369 (2) 049-01369 (2) 049-01369 (2) 049-01369 (2) 049-01369 (2) 049-01369 (2) 049-01369 (2) 049-01369 (2) 049-01369 (2) 049-01369 (2) KNOB ARRAY 046-10577 046-10577...
Page 81: Ga2 25/26V Table Top Set Exploded View
GA2 25/26V TABLE TOP SET EXPLODED VIEW REF DESCRIPTION A25A02D A25A02D4 A25A02D64 A25A02D7 A25A02D74 A25A02D8 A25A02D84 A25A11D A25A11D4 A25A11D64 LGA26A02DM FRONT CABINET 014-12296-09 014-12296-15 014-12296-15 014-12296-09 014-12296-15 014-12296-09 014-12296-15 014-12296-09 014-12296-15 014-12296-15 014-12296-09 SPEAKER 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 KNOB ARRAY 046-10578 046-10578...
Page 82: Ga2 25V Traditional Console Exploded View
GA2 25V TRADITIONAL CONSOLE EXPLODED VIEW REF DESCRIPTION A25A74R A25A74R7 A25A74R8 ESCUTCHEON 057-09067-07 057-09067-07 057-09067-07 MAIN CABINET 014-12191-03 014-12191-03 014-12191-03 SPEAKER 049-01302-03 (2) 049-01302-03 (2) 049-01302-03 (2) CRT ASSEMBLY A63AGD01X A63AFW36X A63AFW36X DEFLECTION YOKE 095-04456-03 095-04456-05 095-04531 REAR CABINET 002-04084-11 002-04084-11 002-04084-11 MAIN MODULE...
Page 83: Ga2 25V Contemporary Console Exploded View
GA2 25V CONTEMPORARY CONSOLE EXPLODED VIEW REF DESCRIPTION A25A76R A25A76R7 A25A76R8 ESCUTCHEON A-19127 A-19127 A-19127 MAIN CABINET 014-12333 014-12333 014-12333 SPEAKER 049-01302-03 (2) 049-01302-03 (2) 049-01302-03 (2) CRT ASSEMBLY A63AGD01X A63AFW36X A63AFW36X DEFLECTION YOKE 095-04456-03 095-04456-05 095-04531 REAR CABINET 014-11639-19 014-11639-19 014-11639-19 MAIN MODULE...
Page 84: Ga2 27/29V Table Top Set Exploded View
GA2 27/29V TABLE TOP SET EXPLODED VIEW REF DESCRIPTION A27A11D A27A11D4 A27A11D8 A27A11D84 A27A12D A27A12D4 A27A12D8 LGA26A11DM74 LGA26A11DM8 LGA26A12DM LGA29A11DM FRONT CABINET 014-12305-06 014-12305-06 014-12305-06 014-12305-06 014-12305-06 014-12305-06 014-12305-06 014-12296-15 014-12296-09 014-12296-09 014-12305-06 SPEAKER 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) KNOB ARRAY 046-10578 046-10578...
Page 85: Ga3 25/26V Table Top Set Exploded View
GA3 25/26V TABLE TOP SET EXPLODED VIEW REF DESCRIPTION A25A22BT A25A22BT4 A25A22BT64 A25A22BT7 A25A22BT74 A25A22BT8 A25A22BT84 A25A23W A25A23W4 A25A23W6 A25A23W64 FRONT CABINET 014-12229-16 014-12229-16 014-12229-16 014-12229-16 014-12229-16 014-12229-16 014-12229-16 014-12187-13 014-12187-13 014-12187-13 014-12187-13 SPEAKER 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) KNOB ARRAY 046-10561 046-10561...
Page 86: Ga3 27/29V Table Top Set Exploded View
GA3 27/29V TABLE TOP SET EXPLODED VIEW REF DESCRIPTION A27A22BT A27A22BT4 A27A22BT8 A27A22BT84 A27A23W A27A23W4 A27A23W8 A27A23W84 FRONT CABINET 014-12186-29 014-12186-29 014-12186-29 014-12186-29 014-12281-04 014-12281-06 014-12281-04 014-12281-06 SPEAKER 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) 049-01368-03 (2) KNOB ARRAY 046-10554 046-10554...
Page 87: Ga3 27V Traditional Console Exploded View
GA3 27V TRADITIONAL CONSOLE EXPLODED VIEW REF DESCRIPTION A27A74R A27A74R8 FRONT CABINET 014-12326 014-12326 SPEAKER 049-01334-02 (2) 049-01334-02 (2) KNOB ARRAY 046-10555 046-10555 IR LENS 192-00872 192-00872 A68AGD01X CRT ASSEMBLY A-19058 DEFLECTION YOKE 095-03797-05 REAR CABINET 002-04084-13 002-04103-02 MAIN MODULE 009-01998 009-01998 REMOTE CONTROL 124-00212-35...
Page 88: Ga3 27V Contemporary Console Exploded View
GA3 27V CONTEMPORARY CONSOLE EXPLODED VIEW REF DESCRIPTION A27A76R A27A76R8 FRONT CABINET 014-12327 014-12327 SPEAKER 049-01334-02 (2) 049-01334-02 (2) KNOB ARRAY 046-10555 046-10555 IR LENS 192-00872 192-00872 A68AGD01X CRT ASSEMBLY A-19058 DEFLECTION YOKE 095-03797-05 REAR CABINET 014-11639-20 014-11639-20 MAIN MODULE 009-01998 009-01998 REMOTE CONTROL 124-00212-35...
Page 89: Ga1 Schematics
GA1 INTERCONNECT DIAGRAM GA1 SCHEMATICS 127(6 3$57 180%(56 /,67(' 21 '5$:,1* $5( )25 5()(5(1&( 21/< /,1( '$* *1' 72 &57 ); &57 $ 9 )2&86 '$* *1' 72 &57 63$5. *$3 $& +,*+ &57 *5281' :,5( 0,&52 ,& 62&.(7 $&...
Page 90 GA1 AUDIO PROCESSOR SHT.3 COMP-AUD 9-1869-01 +14V 9-1870-01 ASSY L.C. STEREO ONLY R820 14.3 IC801 WF19 ASSY’S ONLY (LCS,MTS) 1.56V 221-981 IC1400 (MONO) 1 mS C821M C1423 C1401M C820 0.01 C802 4700pF C806M R1404M 2200uF(STEREO) R802M 1000pF 5.6K 4.7K 470uF C1403 1000uF(MONO) CR1401...
Page 91 GA1 MAIN PROCESSOR PWRCONT SHT.2 SHT.4 COMP-AUD COMP-AUD SHT.4 R6001M SHT.4 4.7K R6002M 4.88V 20uS FLYBACK R6004 Q6001 IC6000 121-1310A 4.92V C6001M R6003M 120pF HSYNC R6005M 4.7K R6006M VSYNC VERT-DRIVE R6008 Q6002 R6009 ADC4/AFC 121-1310A C6023M C6024M C6025M C6033M C6002M 100pF 100pF 100pF...
Page 92: Video Processor
GA1 VIDEO PROCESSOR PWRCONT SHT.3 SHT.5 C1208 PWRCONT COMP-AUD R1209 SHT.3 PROV(MONO) R1221 C1202M PROV SHT.3 PROV (LCS,MTS) R1210M PROV PROV TP1201 C1223M J1200M R1220M "A" FLYWIRE L1202 0.01 PROV TO R1452M C1206M C1202M ONLY ON C1208 33PF PROV 10uH 9-1950 R1224M C1209M...
Page 93: Power Supply & H/V Deflection
GA1 POWER SUPPLY & H/V DEFLECTION SHT.4 PWRCONT Vertical Horizontal IC2101 221-00903 VERTICAL SECTION Block Diagram #2 Sheet 7 KX3401 RX3406 195-161 DX3409 ICX3402 103-347-03A 103-347-03A +25V 7.5K 221-167-01A DX3410 WF16 LX3402 DX3405 RX3404 RX3405 DX3411 RX3420 103-326A 3.6 V 103-347-3A 12.0 C2107M...
Page 94: Video Output
GA1 VIDEO OUTPUT L5100 WF27 204 V 220uH 20 uS RX5126 20-3907-28A C5100 350V Q5101 R5101M 121-1334 R5107M C5101M 330PF R5116 R5104M R5113M R5118 BLUE DAG1 R5119 F-49700 C5104 RX5127 1/2W 0.01 F-49700 2000V GREEN R5117 CRT1 Q5102 GREEN R5102M 121-1334 78-3394-09 BLUE...
Page 95: Block Diagrams
GA1 BLOCK DIAGRAMS H. OUT X-RAY Clamp Black H. RAMP Limiter Streatch 3.58 Trap 32FH AFC-2 AFC-1 Smoothing Restoretion Sharpness H C/D Y-DL Contrast H SEPA Color DEMO LOCK Killer TINT V SEPA V C/D Bright V. RAMP Bus Interface Analogue RGB Cut-off/Drive D.
Page 96: Pcb Layout
GA1 PCB LAYOUT IR6000 T4.0A FX3401 250V Q5101 C6004 L5102 R1421 C5105 _A_V CX3401 R5116 RX3405 RX3404 KX3401 CRY6001 C6009 DX3411 MICR OPROCESSO R CX3413 LX3402 C6020 DX3409 R6056 RX 342 0 CX3410 R6055 IC6001 R6052 ICX3402 IC6000 +5V REG R6051 C6016 EX3401...
Page 97: Smd Layout
GA1 SMD LAYOUT C6003M R6033M R6007M R6020M R6024M R6034M R6026M R6031M R6005M R1420M R6006M R6013M C6025M C6021M C6001M R6035M C5103M R5115M R5114M C5102M C2210M C1215M C1418M R1216M C1431M C2214M R2227M R2230M R1407M C1420M R1213M R2224M C1401M R1212M R1411M C1213M R2226M R1410M R1404M R2257M...
Page 99: Ga2 Schematics
GA2 SCHEMATICS GA2 INTERCONNECT DIAGRAM IPU@T) ÃÃQ6SUÃIVH7@STÃGDTU@9ÃPI ÃÃÃÃ9S6XDIBÃ6S@ÃAPSÃS@A@S@I8@ÃPIG` '$* *5281' &57 72 9,'(2 287387 6VYÃDIQVUT !'ÃFW 6UÃa@SPÃ AP8VT 6IU@II6 7@6H Ã867G@ 6V9DP 6V9DP 6V9DP <2.( SDBCU G@AU VT@9ÃPIÃHUTÃHP9@GTÃPIG ` Ã(WÃTXA 7; BSPVI9 SÃÃPVU 6:((3 BÃÃPVU D8! 7ÃÃPVU !! (" SDBCU VT@9ÃPI G@AU...
Page 100: Power Supply
GA2 POWER SUPPLY PWRCONT SHT.12 CX3408 KX3401 1000uF 195-161 RX3415 DX3405 103-254-01 63-10710A +123 +33V RX3411 58-546-02 DEGAUSSER IC3441 FX3401 F-52599 LX3401 221-213-09 136-114-23A 126-2131-01 95-4285 CX3404 CX3403 4A-250V 1000pF 1000pF 1000V 1000V RX3420 12.8 CX3402 CX3401 EX3401 0.0047 103-476A(4) PROV C3428 38-102...
Page 101: Audio Processor
GA2 AUDIO PROCESSOR COMP-AUD SHT.13 PWRCONT PWRCONT SHT.11 SHT.13 C1423 FORCEDMONO C1401M SHT.13 4700pF STEREO-IND R1404M SHT.13 5.6K CR1401 C1403 224-179 0.22 SHT.13 C1404 378KHz SHT.13 SAP-IND SHT.13 AUXSWITCH SHT.13 C1418M R1407M C1420M VOL-CTRL 0.022 SHT.13 3.3K C1417 2700pF C1416 C1409 C1410 R1411M...
Page 102 GA2 MAIN PROCESSOR COMP-AUD COMP-AUD SHT.12 SHT.14 PWRCONT SHT.12 SHT.14 FORCEDMONO SHT.12 4.88V 4.92V STEREO-IND 20uS R6001M SHT.12 4.7K R6002M SHT.12 FLYBACK R6004M Q6001 SHT.12 121-1310A IC6000 SAP-IND C6001M SHT.12 R6005 R6003M 120pF 4.7K AUXSWITCH R6006M SHT.12 SHT.14 VOL-CTRL VERT-DRIVE R6008M Q6002 SHT.12...
Page 103 GA2 VIDEO PROCESSOR COMP-AUD SHT.13 R1221 TP1201 R1209 SHT.13 MONO ONLY C1223M ICX2200 R1220M J1200M 0.01 R1210M C1206M C1202M 221-01165 33PF 4700PF R1224M Block Diagram #7 L1202 U1201 C1208 L1208 C1226M Sheet 17 L1206 R1223 0.01 224-160 0.82uH C1209M 10UH C1210M C1224M PROV...
Page 104: H/V Deflection
GA2 H/V DEFLECTION C2110 58-546-04 R2114 R2117 R2603 PROV 2.2M 390K YOKE 4.34 R2602 R2604 R2605 0.16 Q2101 121-1310A C2602 C2603 RX3263 C2601 R2116 RX2601 10uF 0.022 WF22 WF18 100V 100V CX3260 1/2W 1/2W 115.V 2.2uF CX3264 20 uS 20 uS 160V +25V PROV...
Page 105 GA2 VIDEO OUTPUT L5100 220uH RX5126 R5123 C5100 PROV PROV C5110 165.3 PROV R5101M Q5101 121-1334A R5107M C5101M 330pF R5104M R5113M R5118 BLUE 1/2W DAG1 1/2W C5104 RX5127 0.01 R5119 R5117 GREEN 165.5 CRT1 1/2W GREEN R5102M Q5102 78-3394-06 121-1334A BLUE R5120 R5121...
Page 106: Block Diagrams
GA2 BLOCK DIAGRAMS H. OUT ;5$< &ODPS + 5$03 Black /LPLWHU Streatch 3.58 R-DIV1 R-SHUNT Trap AFC-2 AFC-1 6PRRWKLQJ Q-REG 5HVWRUHWLRQ 6KDUSQHVV R-BIAS H C/D Y-DL &RQWUDVW R-DIV2 DZREG R-ANTISAT H SEPA '(02 &RORU Q-LIMITER LOCK .LOOHU 7,17 V SEPA V C/D Bright Q-SWTICHING...
Page 107: Pcb Layout
GA2 PCB LAYOUT E X T E RN A L B L U E IR6000 K E Y BO A R D T4AL250V Q 5 1 01 R 5 1 22 C 6 0 04 W 6 6 L 6 00 4 C O L D S W 1 S W 5...
Page 108: Smd Layout
GA2 SMD LAYOUT R5101M R6019M R5113M C5101M C6001M R6026M R6034M R6001M R5104M R6031M R6004M R6008M R6013M R6012M C6021M C6033M R5103M R5106M R6035M R5102M R5108M R6058M R5109M R5115M C5103M R6060M R5105M C5102M R5114M R2228M R6063M R2232M R6072M R6053M R1235M R6059M R6062M C1215M R2225M R1450M...
Page 109: Ga3 Schematics
GA3 SCHEMATICS GA3 INTERCONNECT DIAGRAM 127(6 3$57 180%(56 /,67(' 21 '5$:,1* $5( )25 5()(5(1&( 21/< '$* *5281' &57 5,*+7 /()7 72 9,'(2 287 5 287 / .9 287387 )2&86 $7 =(52 %($0 78 <2.( ;; $0 3/,),(56 '()/(&7,21 75$16)25 0(5 ,& 63($.(56...
Page 110: Power Supply
GA3 POWER SUPPLY RX3501 ENERGY STAR MODELS ONLY PWRCONT ICX3501 SHT.23 JUMPER ENERGY STAR OTHER DX3501 DX3502 +124 PWR-CTL +33V 103-254-01 103-254-01 221-167-01A SHT.23 TX3501 REF. DES. MODELS MODELS RX3502 RX3411 W3401 CX3501 W3402 DX3504 DX3503 1000uF W3501 103-254-01 103-254-01 W3502 95-4548 W3503...
Page 111: Audio Processor
GA3 AUDIO PROCESSOR PWRCONT PWRCONT SHT.22 SHT.24 PWR-CTL PWR-CTL SHT.22 SHT.24 EXT-L SHT.24 EXT-R SHT.23 R843 C1401M 4.14 4.15 BASSL2 18.84 (0.065) BASSL1 &20321(17 3257 78%( 121 3257 78%( 0.015 +18V C1403M C1402M 0.016 (0.69) 4.15 4.14 5() '(6 9$/8( 9$/8( TRE-R C843...
Page 112: Main Processor
GA3 MAIN PROCESSOR VERT-SIZE PWRCONT SHT.25 SHT.23 WF10 HORZ-SIZE PWR-CTL 4.88V 4.48V 5.0V SHT.23 SHT.25 Vertical R6001M 20uS EXT-L AUXSWITCH1 4.7K R6002M SHT.23 SHT.25 EXT-R PWR-CTL SHT.23 R6004M IC6000 SHT.25 FLYBACK Q6001 EXT-L 121-1310A R6095 SHT.25 221-1305-01 EXT-R R6005M R6003M C6001M SHT.25 4.7K...
Page 113: Video Processor
GA3 VIDEO PROCESSOR VERT-SIZE SHT.24 COMP-AUD HORZ-SIZE R1221M CHROMA-COMB SHT.24 ICX2200 SHT.26 AUXSWITCH1 TP1201 SHT.24 L1202 221-1165 R1220 C1213M L1201 EXT-L PWR-CTL C1223M R1212M 120PF 10uH SHT.26 0.01 SHT.24 R1224M Block Diagram #13 100k 4.7K 10UH C1212M 4277-39A 20-3907-12A C1206M C1217 L1203 EXT-R...
Page 114: H/V Deflection
GA3 H/V DEFLECTION EXT-VIDEO SHT.27 AUXSWITCH1 CHROMA-COMB SHT.27 SHT.25 058-00546-04 CHROMA-COMB EXT-L SHT.25 SHT.27 Y/C-SENSE EXT-R YOKE SHT.25 SHT.27 WF22 AUXSWITCH1 1.07KV SHT.25 20 uS WF18 VM-OUT-L RX3263 SHT.25 124V CX3264 20 uS VM-OUT-R SHT.27 +25V SHT.25 470pF 1/2W CX3260 DX3273 EXT-L 500V...
Page 115: Jack & Switching Circuit
GA3 JACK & SWITCHING CIRCUIT EXT-VIDEO SHT.25 IC2001 AUXSWITCH1 SHT.25 221-1171 CHROMA-COMB SHT.25 CH-2 CH-1 Y/C-SENSE SHT.25 R2907M 0 Ohm R2909M .1 W 2.2K SHT.25 EXT-L C2901M SHT.25 0.01uF C2904M C2951 EXT-R R2914 SHT.25 100uF VM-OUT-L 220pF SHT.25 C2902M L2901 VM-OUT-R 27pF SHT.25...
Page 116: Video Output
GA3 VIDEO OUTPUT L5100 220uH RX5126 20-3907-28A R5123 2.2K 1/2W 165.3 C5110 R5101M Q5101 PROV 121-1291-01 R5107M C5101M 470pF Red Drive R5104M R5113M Green Drive R5118 BLUE Blue Drive 1/2W DAG1 1/2W C5104 RX5127 0.01 R5119 R5117 GREEN 165.5 CRT1 1/2W BLUE-IN GREEN-IN...
Page 117: Block Diagrams
GA3 BLOCK DIAGRAMS )(;7 79287/ 67/3) &+ ),/7(5 792875 /)/7 9&2 $8;/ 3527(&725 0$75,; $8;5 &+ 9/'& )(;7 9&$ 92//,0 9/7& 5,33/( ),/7(5 67(5(2 68557& :,'(%$1' &203,1 9&$ 'H(P 35(92/ 156:)2026$3& G% %$66/ 67,1' %$66/ /2*,& %$665 6$39&2 %$665 75(/ 'H(P 9&$ 12,6(...
Page 118: Pcb Layout
GA3 PCB LAYOUT IR6000 Q 6 0 0 1 S W 1 R 5 1 2 2 L 6 00 4 C 6 0 0 6 EX3401 S W 5 S W 2 S W 6 S W 3 W 0 1 0 8 L 6 00 5 CRT1 C 6 0 0 4...
Page 119: Schematic Diagrams
PRINTING THE SERVICE MANUAL The PDF of this service manual is not designed to be printed from cover to cover. The pages vary in size, and must therefore be printed in sections based on page dimensions. NON-SCHEMATIC PAGES Data that does NOT INCLUDE schematic diagrams are formatted to 8.5 x 11 inches and can be printed on standard letter-size and/or A4-sized paper. SCHEMATIC DIAGRAMS The schematic diagram pages are provided in two ways, full size and tiled.

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Zenith A19A02D Service Manual

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