GENERAL SAFETY NOTES 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.
PARTS REPLACEMENT 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.
1. Be sure procedures and instructions to all your service personnel cover the subject of X-radiation. Potential sources of X-rays in TV receivers are the picture tube and the high voltage circuits. The basic precaution which must be exercised is to keep the high voltage at the factory recommended level. 2.
LEAKAGE CURRENT HOT CHECK 1. Do not use an isolation transformer for this test. Plug the completely reassembled receiver directly into the ac outlet. 1.5k, 1OW resistor 0.15uF. capacitor 2. Connect a paralleled by a between each exposed good earth ground metallic cabinet part and a such as a water pipe, as shown below.
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...
X-RADIATION PICTURE TUBE REPLACEMENT PARTS REPLACEMENT WARNING Before removing the CRT anode cap, turn the unit OFF and short the HIGH VOLTAGE to the CRT DAG ground. SERVICE NOTE: The CRT DAG is not at chassis ground. TV-VCR COMBI SAFETY NOTES IMPORTANT SAFETY PRECAUTIONS Prior to shipment from the factory, our products are strictly inspected for recognized product safety and electrical codes of the countries in which they are to be sold.
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d. X-Radiation and High Voltage Limits - Because the picture tube is the primary potential source of X-radiation in solid-state TV receivers, it is specially constructed to prohibit X-radiation emissions. For continued X-radiation protection, the replacement picture tube must be the same type as the original.
thermally hot parts, c. the ac supply, d. high voltage, and e. antenna wiring. Always inspect in all areas for pinched, out of place, or frayed wiring. Check ac power cord for damage. 7. Components, parts, and/or wiring that appear to have overheated or are otherwise damaged should be replaced with components, parts, or wiring that meet original specifications.
2) Strip about 15 mm of the insulation from the ends of the wires. If the wires are stranded, twist the strands to avoid frayed conductors. 3) Align the lengths of the wires to be connected. Insert the wires fully into the connector. 4) Use the crimping tool to crimp the metal sleeve at the center position.
VCR SAFETY NOTES FIRE & SHOCK HAZARD (VCR) 1. Be sure that all components are positioned in such a way to avoid possibility of shorts to adjacent components. This is especially important on those chassis which are transported to and from the repair shop.
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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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7615 DFU Information Directions For Use (DFU) For Customer Operating Instructions, please visit our web site: www.p4c.philips.com.
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7615 Adjustments page 1 A10 PTV ADJUSTMENTS MANUAL 7615 Service Modes and Error Messages The following topics are covered: • Test points • Service Modes • Error code buffer and error codes • The “blinking LED” procedure • Trouble shooting tips •...
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7615 Adjustments page 2 Entering Service Default Mode To enter the Service Default Mode, press the following key sequence on the remote control transmitter: 0-6-2-5-9-6-MENU Do not allow the display to time out between entries while keying the sequence. Upon entry into the Service Default Mode, the letters “SDM” will be displayed at the upper right corner of the screen.
7615 Adjustments page 3 The Blinking LED Procedure The contents of the error buffer can also be made visible through the “blinking LED” procedure. This is especially useful when there is no picture. NOTE: If errors 1, 2, 3, or 4 occur the LED ALWAYS blinks indicating the last error which occurred, even if the set is NOT in service mode.
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7615 Adjustments page 4 Exit SAM: To exit the Service Alignment Mode, press the Power button. In SAM the following information is displayed on the screen: Figure 2: SAM Screen Explanation notes/references: Operation Hours (Run Timer): This display indicates the accumulated total of operational hours. (Shown in hexadecimal format) Software identification of the main micro controller (A101US1-2.06) A10 is the engineering chassis name for the A10 PTV chassis...
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7615 Adjustments page 5 SAM Menu Control Menu items may be selected using the cursor UP/DOWN keys. • The selected item will be highlighted. • When not all menu items will fit on the screen, pressing the cursor UP/DOWN keys on the remote transmitter will display the next/previous menu items.
7615 Adjustments page 6 Error code definition In case of non-intermittent faults, clear the error buffer before starting the repair, to make sure “old” error codes are not present. If possible check the entire content of the error buffers. In some situations an error code is only the result of another error code (and not the actual cause).
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(USA Model, Sears) PTV916, Fighter + 1US1 (see B) 50PP241/76 (LATAM Model) PTV918 1US1 (see C) 55P8241/37 (USA Model) PTV910, Fighter 1US1 (see A) 55P8288/37 (USA Model, Best Buy) PTV910, Fighter 1US1 (see A) 55P8341/37 (USA Model) PTV915, Fighter +...
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7615 Adjustments page 8 Option Codes - NAFTA A = USA Fighter, (1US1 Software) B = USA Fighter +, (1US1 Software) C = NAFTA Mexico, (1US1 Software) 1US1 CODE DESCRIPTIONS SBNP AUTO STANDBY NO PICTURE COMPONENT VIDEO INPUT C169 COMPRESS 16:9 MODE AVAILABLE E149 EXPAND 14:9 MODE AVAILABLE SMCK...
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AUSB AUTO STANDBY AUTO ON CBFL COMB FILTER IPIX INCREDIBLE PICTURE IPMU INCREDIBLE PICTURE VIA MENU ITEM VDBY VIRTUAL DOLBY ENABLED PITN PHILIPS TUNER PLST PROGRAM LIST SOSD SMART OSD BLMU BLUE MUTE PIPC PIP CONTROL PIPS PIP SURF PIPT...
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7615 Adjustments page 10 Option Codes - Late Production Change Late Production SSM Panels with HWBMS "ON" A = USA Fighter, (1US1 Software) B = USA Fighter +, (1US1 Software) C = NAFTA Mexico, (1US1 Software) D = Taiwan & Philippines, (3AP1 Software) - Korea, (3AP2 Software) HWBMS HARDWARE BLUE MUTE STREAK CAN BE USED TO ADJUST OPTION BYTES AT ONCE...
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7615 Adjustments page 11 Gray Scale Setup 1. Connect a Gray Scale pattern to the set. 2. Preset the registers as shown below. NORMAL RED NORMAL GREEN NORMAL BLUE NORMAL BLACK LEVEL RED NORMAL BLACK LEVEL GREEN DELTA COOL RED DELTA COOL GREEN DELTA COOL BLUE DELTA COOL BLACK LEVEL RED...
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7615 Adjustments page 12 Entering the Customer Service Mode The Customer Service Mode can be switched on: • By pressing the MUTE button on the remote control and any key on the local keyboard (Channel Up, Channel Down, VOL +, VOL -) on the TV simultaneously for at least 4 seconds. The following menu will appear.
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7615 Adjustments page 13 The Customer Service Mode Information Screen Upon entry into the Customer Service Mode the following screen will appear. Figure 4: CSM Screen The Customer Service Menu shows the following information: Line 1: “HRS : nnnnn” and SWID : “A10BBC-X.Y” HRS: Indicates the accumulated total of operational hours.
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7615 Adjustments page 14 Line 4: NOT USED Line 5: “NO SIGNAL” Indicates that the set is not receiving an “ident” signal on the selected source. · no or bad antenna signal; connect a proper antenna signal · antenna not connected; connect the antenna ·...
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7615 Adjustments page 15 Line 14: “HUE” Value indicates level at entry CSM. Line 15: “COLOR” Value indicates level at entry CSM. Line 16: “BRIGHTNESS” Value indicates level at entry CSM. Line 17: “CONTRAST” Value indicates level at entry CSM. Line 18: "SPEAKERS"...
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7615 Adjustments page 16 Touch-up Convergence adjustments Enter the Digital Convergence Mode (DCM) by entering 0-6-2-5-9-7-(Status or Index) on the Remote control. The following menu will appear: Select an active channel or Aux Input. A signal must be applied to the set when performing convergence. If any Customer Adjustments need to be made, the Menu button can be used to toggle between the Customer Menu and DCM.
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7615 Adjustments page 17 GREEN GEOMETRY 1. Make sure a signal is applied to the set. 2. Enter the Convergence mode by entering 0-6-2-5-9-7-(Status or Index). Use the Menu button to toggle between DCM and Customer Mode. Select an active channel or input while in the Customer Mode.
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7615 Adjustments page 18 Complete in-depth Geometry To activate the Service Alignment Mode, enter 0-6-2-5-9-6-(Status or Index) using the Remote Control. Press Status or Index toggle to the Customer menu. Select an active channel. Pressing the Status or Index button will bring up the SAM mode. 1.
7615 Adjustments page 19 Troubleshooting Tips The Power Supply Circuit When the set is turned On, the Main Switch Mode power supply is turned On. This supply produces the +130 volt,+32 volt,-32 volt, two +15 volt, and Audio supplies. When IC 7302 develops a normal steady state operation, the 130 volt supply is sampled by resistors 3324,3323,and 3322.
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Field Fix - Intermittent Video Blink Step 1 - Remove SSB Panel Remove SSB from the PTV using the described safety precautions. Step 2 - Locate & Remove IC7407 Remove IC7407 from the SSB using caution as not to lift any traces. It is preferred to cut the legs with an XACTO knife or something similar.
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Area With IC7407 Removed: Step 3 - Jumper Legs 13 and 14 Jumper legs 13 and 14 of IC7407 with solder as shown below.
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Step 4 - Locate Component 2311 Locate component 2311 as shown below. Step 5 - Place Jumper (Top) Place Jumper Wire at the top of component.
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Step 6 - Locate Component 3413 Locate Component 3413 as shown below. Step 7 - Place Jumper (Bottom) Place the other end of jumper on the component 3413 as shown below:...
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Step 8 - Enter SAM (Service Alignment Mode) After completing the hardware fix, enter the SAM (service alignment mode). Under options, turn CBFL off (comb filter). Replace SSB using prescribe precautions and check for proper operation.