IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all Philips Consumer Electronics Company** Equipment. The service procedures recommended by Philips and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose.
FIRE AND SHOCK HAZARD 1. Be sure all components are positioned in such a way as to avoid the possibility of adjacent component shorts. This is especially important on those chassis which are transported to and from the service shop. 2.
LEAKAGE CURRENT COLD CHECK 1. Unplug the ac line cord and connect a jumper between the two prongs of the plug. 2. Turn on the power switch. 3. Measure the resistance value between the jumpered ac plug and all exposed cabinet parts of the receiver, such as screw heads, antennas, and control shafts.
TV SAFETY NOTES SAFETY CHECKS After the original service problem has been corrected, a complete safety check should be made. Be sure to check over the entire set, not just the areas where you have worked. Some previous servicer may have left an unsafe condition, which could be unknowingly passed on to your customer.
The use of a substitute part which does not have the same safety characteristics as the Philips recommended replacement part shown in this service manual may create shock, fire, or other hazards.
PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) Some semiconductor solid state devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices, Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge (ESD).
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PRACTICAL SERVICE PRECAUTIONS IT MAKES SENSE TO AVOID EXPOSURE TO ELECTRICAL SHOCK. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard. ALWAYS RESPECT VOLTAGES. While some may not be dangerous in themselves, they can cause unexpected reactions –...
GENERAL INFORMATION CHASSIS SPECIFICATIONS Channel Tuning: Antenna: Channels 2 through 69 Cable: Channels 1 through 125 Allowable cable offset ± 2.0 MHz Operating and Storage Temperatures: Operating Temperature: 0ºC to +50ºC Storage Temperature: -40ºC to +60ºC Audio In/Out: ½ VRMS System: NTSC-M only IF Frequencies:...
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Mains (AC Power): 60 Hz, 120 volts AC nominal: Allowed 105 to 132 volts AC For Auto-Multi-Voltage Only: 60 Hz, 120 to 247 volts AC Power consumption, worst control setting: 1.6 Amps, 192 Watts Standby power consumption: <3 Watts +/-10% High Voltage (EHT): (At minimum brightness) Screen Size:...
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Model Size Panel Number Description Sub Panel Description PHILIPS – MAGNAVOX MODELS 00TP2784-C1 27“ 00AVJ245 Jack Panel (I/O Cinch Panel) (JP9110) 00A10783 Single PIP Panel...
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00AVJ244 Jack Panel (I/O Cinch Panel) (JP9110) 00EMG790 Main Chassis 00A10781 East West Panel (Diode Modulator) 00A10785 Comb Filter Panel PHILIPS GUIDE PLUS MODELS 0027PT40-B1 27“ 00AVJ247 Jack Panel (I/O Cinch Panel) (JP9420) 00A10775 Virtual Dolby Panel 00A10776 Guide Plus Panel...
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PHILIPS – MAGNAVOX CANADIAN MODELS 00XP2784-C1 36“ 00AVJ245 Jack Panel (I/O Cinch Panel) (JP9110) 00A10783 Single PIP Panel 00EMG770 Main Chassis 00A10784 Comb Filter Panel 00XS3259-C1 32“ 00AVJ244 Jack Panel (I/O Cinch Panel) (JP9110) 00EMG780 Main Chassis 00A10780 East West Panel (Diode Modulator) 00XS3659-C1 36“...
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PHILIPS - LATIN AMERICA - AMV MODELS 0029LP69-22 27“ 00AVJ246 Jack Panel (I/O Cinch Panel) (JP9115) 00A10782 2 Tuner Single PIP Panel 00EMG771 Main Chassis 00A10773 YUV Panel (Histogram) 00A10784 Comb Filter Panel 0029LP69-32 27“ 00AVJ246 Jack Panel (I/O Cinch Panel) (JP9115)
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Model to Remote Transmitter and Jack Panel Listing Model Screen Remote Jack Panel Number Size Transmitter 0027PT40-B1 27“ RC2010/01 JP9420 0029LP69-22 27“ RCU81AX JP9115 0029LP69-32 27“ RCU81AX JP9115 0032PT70-B1 32“ RC2010/01 JP9523 0033LL89-11 32“ RCU81BX/01 JP9110 0033LP89-32 32“ RCU81AX JP9115 0037LP99-22 36“...
Rear Connections of JP9115 Rear Connections of JP9523 GLOSSARY OF TERMS, ACRONYMS, AND ABBREVIATIONS Two Channel Stereo Automatic Frequency Control Automatic Fine Tuning Asia Pacific Automatic Tuning System External Audio/Video Automatic Volume Level control BTSC Broadcast Television Standard Committee (TV stereo) Circuit Board Assembly (PCB) Closed Captioning...
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Customer Service Mode CVBS Color Video Blanking Sync Dynamic Noise Reduction EEPROM Electrical Erasable Programmable Read-Only Memory Error Buffer Register that keeps track of errors that occur and stores error codes Error Code A numerical value used to indicate a failure in the television Europe External audio/video input Frequency Modulation...
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G7 CHASSIS FEATURE WORDS Chart No. Final Chassis Trans- Antenna Audio Auto Auto Auto Standby Muliple A/V Compress Customer Dynamic Noise Expand Mono Fine Hospitality Incredible Parental Instrument Assembly mitter Control Standby Volume L No Picture Inputs 16 x 9 Service Mode Reduction 14 x 9...
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G7 Chassis Feature Listing Model Chassis Trans- Rear Side Head Diode Guide + Clock Histogram/ Color Blue Comb Var/Fix Tone Virtual Surround Incredible Surf Remote Sub- Audio Bimos Number Assembly mitter Jacks phone Control Modulator Gold Temperature Stretch Filter A-Out Control Dolby Jacks...
G7 CHASSIS SERVICE ADJUSTMENTS REQUIRED TOOLS FOR SERVICING Isolation Transformer Multimeter Oscilloscope High Voltage (100:1) Oscilloscope Probe Sencore VG91 Universal Video Generator Caution: The G7 chassis incorporates a ”hot“ ground system. Always use a separate isolation transformer when applying power to the exposed chassis. Service Adjustment Notes Unless Otherwise Specified: All service adjustments are ”hot“...
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G7 SERVICE MODES Introduction There are three service modes used in the G7 chassis. They are: SAM - Service Alignment Mode SDM - Service Default Mode CSM - Customer Service Mode The Service Alignment Mode corresponds to the older "Service Mode". The SAM allows adjustments/alignments, setting of options, writing defaults to the memory IC, and erasing error codes.
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SERVICE ALIGNMENT MODE (SAM) The Service Alignment Mode (SAM) is used to set the option codes and bytes of the set, and display the error codes (the Power LED begins blinking procedure for error code display, if errors are detected). SAM also overrides software protections.
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10. To exit the Service Alignment Mode and erase the error codes, turn the unit off with the Power button on the remote control or the local keyboard, then unplug the ac cord. 11. To exit the Service Alignment Mode and save the error codes, unplug the ac cord to turn off the set. When the set is turned on again, the Service Alignment Mode will still be active.
Error Buffer The six most recent errors are encoded on the following line of the display. The most recent error will be displayed in the register nearest the text ”ERR.“ The error codes and their meanings are shown below. Error Code Table = No error = X-ray protection, E/W protection and/or Vertical protection active = High beam current protection active...
Reading Error Codes Error codes are displayed in the following ways: 1. By SAM, SDM, or CSM display 2. By blinking Power LED If the on screen display is working, enter SAM, SDM or CSM and read the error buffer display. If the on screen display is not working, read the error code from the Power LED: a.
Options Sub-menu Allows the servicer to change the chassis feature bits listed in the Options List. This sub-menu also allows the servicer to change the feature bytes of the set; these are OB1, OB2, OB3, OB4, OB5, OB6, and OB7. The feature byte values will also change when the feature bits are changed.
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Options Table Option Code Option Name Value Range Antenna A/B Control OFF/ON Audio Control OFF/ON Auto Standby OFF/ON Auto Volume Limiter OFF/ON Auto Standby No Picture OFF/ON Muliple A/V Inputs OFF/ON Compress 16 x 9 OFF/ON Customer Service Mode OFF/ON Dynamic Noise Reduction OFF/ON Expand 14 x 9...
Reload Default Sub-menu Note: This option should be accessed only when the memory IC (IC 7088) is replaced. If the memory IC is replaced, RELOAD DEFAULT is the starting point for all adjustments. After the RELOAD DEFAULT command is executed, all alignments and adjustments must be performed. Enter the Service Alignment Mode (SAM) by pressing the following key sequence on the remote control transmitter: 0-6-2-5-9-6-Status...
WHITE-TONE Adjustments Note: The following procedure was performed with a Sencore VG91 Universal Video Generator providing grey scale bars. From the ALIGNMENTS sub-menu, highlight WHITE-TONE by pressing the Menu Up/Down keys on the remote control. Press the Menu Right/Left keys to enter the WHITE-TONE adjustments screen. Set the VG91 Generator as follows: STD TV Ch.
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Vertical Height (VERHEIGHT) Adjustment From the GEOMETRY adjustments screen, use the Menu Up/Down keys to highlight VERHEIGHT. Input a crosshatch pattern to the antenna/cable input terminal. Using the Menu Left key, reduce the value so that the picture does not fill the entire screen. Use the Menu Up/Down keys to select VERSHIFT (Vertical Shift) from the Geometry sub-menu and, using the Menu Left/Right keys, center the picture on the screen, top to bottom.
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Service Blanking (SERV. BLANK) Adjustment Service Blanking provides a straight cutoff line in the center of the raster. It is useful when centering the raster. It can also be used in adjusting the yoke and setting vertical size and linearity. From the GEOMETRY adjustments screen, use the Menu Up/Down keys to highlight SERV.
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This adjustment should be set so the top and bottom of the screen are of equal width. If other GEOMETRY adjustments are needed, proceed to the necessary adjustment. When finished with adjustments, or if no changes are required, press the Menu button to return to the ALIGNMENTS sub-menu.
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WEAK BGT (Weak Signal Brightness): Adjusts the brightness level of the Smart Picture ”WEAK SIGNAL“ setting. WEAK COL (Weak Signal Color): Adjusts the color level of the Smart Picture ”WEAK SIGNAL“ setting. WEAK PIC (Weak Signal Picture): Adjusts the contrast level of the Smart Picture ”WEAK SIGNAL“ setting.
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GUIDE PLUS TEST Note: The following adjustment is only available in sets equipped with Guide Plus. From the ALIGNMENTS sub-menu, highlight GUIDE PLUS TEST by pressing the Menu Up/Down keys on the remote control. Press the Menu Left or Menu Right key to start the GUIDE PLUS TEST. The purpose of this option is to allow specific tests on the Guide Plus board for service diagnosis.
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11. Slowly spread, and if necessary, rotate the 2-Y pole purity rings so that the red and blue lines are at least parallel and preferably coincide at the 6:00 and 12:00 positions (refer to Figure 2). ZERO CORRECTION GRIDS POSITION (G2 &...
2Y SPREAD SPREAD 2Y ROTATE ROTATE Figure 2 Dynamic Edge Convergence Adjustment 12. Proceed to the Color Purity Adjustment. Color Purity Adjustment Connect a solid white pattern signal to the antenna/cable input terminal. Use the Menu Left/Right keys to select Blue (B), and use the Menu Up/Down keys to set Blue to minimum. Use the Menu Left/Right keys to select Red (R), and use the Menu Up/Down keys to set Red to maximum.
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Static Center Convergence Adjustment Apply a center cross or crosshatch pattern to the antenna/cable input terminal and observe the screen to ensure that the yoke is not tilted. If necessary, rotate the yoke to obtain a level raster. Use the Menu Left/Right keys to select Blue (B), and use the Menu Up/Down keys to set Blue to maximum. Slowly spread, and if necessary, rotate the 4-pole magnetic rings to converge red and blue lines at the center of the screen.
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Tilt the yoke up and down to converge the red and blue vertical lines at the 6:00 and 12:00 positions and the red and blue horizontal lines at the 3:00 and 9:00 positions (refer to Figure 5). When the correct position has been found, place a rubber wedge between the yoke and the CRT.
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2nd Tuner AGC Adjustment Tune to a normally snow free station. Adjust potentiometer 3140 (on the Single PIP Panel A10782 or A10783) to its fully counterclockwise position. Slowly turn potentiometer 3140 clockwise to a point slightly beyond the point of minimum snow. Note: Do not turn the control any further as it may result in an overloaded picture on the face of the CRT (caused by a strong station).
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SERVICE DEFAULT MODE (SDM) The Service Default Mode is a technical aid for the service technician. It establishes a fixed, repeatable setting of controls to allow measurements to be made. On screen display is kept at a minimum to reduce the cluttering of waveforms with unwanted information.
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CUSTOMER SERVICE MODE (CSM) The Customer Service Mode (CSM) is used to retrieve data on the TV operation settings and stored error codes. To enter the Customer Service Mode, press and hold the Mute button on the remote control and any key on the local keyboard (except ”Power“) for more than 4 seconds.
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Explanation of CSM Display Screen The following information is displayed on screen: • Text ”CSM“ in upper right hand corner • Line number for every line (to make CSM language independent) • To view multiple CSM pages (if available), use the Channel Up or Channel Down keys •...
SCHEMATIC NOTES: UNLESS OTHERWISE SPECIFIED: 1. ALL VOLTAGES AND WAVEFORMS WERE TAKEN UNDER THE FOLLOWING CONDITIONS: LINE VOLTAGE MAINTAINED AT 120VAC, 60Hz VIA AN ISOLATION TRANSFORMER. PLACE THE TELEVISION SET IN SDM (SERVICE DEFAULT MODE). TO ENTER SDM, PRESS 0-6- 2-5-9-6-MENU ON THE REMOTE CONTROL.