1. Improtant Service Notes
PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS
CAUTION : DO NOT ATTEMPT TO MOOIFY THIS PROOUCT IN AHY WAY. SUBJECT : X-RADIATION
NEVER PERFORM CUSTOMIZED INSTALLATI0NS WITHOUT MANUFACTURER" S
APPROVAL. UNAUTHORIZED MOOIFICATI0NS WILL NOT ONLY VOID THE WARRANTY,1. BE SURE PROCEDURES AND AND INSTRUCTIONS TO ALL SERVICE PERSONNEL
BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT RESULTING PROPERTY DAMAGE OR COVER THE SUBJECT OF X-RADIATION. THE ONLY POTENIAL SOURCE OF X-RAYS
USER INJURY. SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE IN CURRENT TV RECEIVERS IS THE PICTURE TUBE HOWEVER, THIS TUBE DOES
THOROUGHLY FAMILIAR WITH ALL OF THE FOLLOWING SAFETY CHECKS AND NOT EMIT X-RAYS WHEN THE HIGH VOLTAGE IS AT THE FACTORY SPECIFIEDLEVEL
SERVICING GUIDELINES. TO DO OTHERWISE, INCREASES THE RISK OF POTENTIAL THE PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC OPERATION AT
HAZARDS AND INJURY TO THE USER.WHILE SERVICING, USE AN ISOLATION HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PICTURE TUBE OR HIGH
TRANSFORMER FOR PROTECTION FROM A.C LINE SHOCK. VOLTAGE SUPPLY AND, UNDER CERTAIN CIRCUMSTANCES, AMY PRODUCE
RADIATION IN EXCESS OF DESIRABLE LEVELS.
SAFETY CHECKS2. ONLY FACTORY SPECIFIED C.R.T ANODE CONNECTORS MUST BE USED.
DEGAUSSING SHIELDS ALSO SERVE AS X-RAY SHIELD IN COLOR SETS.
AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRECTED, A CHECK SHOULD AIWAYS RE-INSTALL THEM.
BE MADE OF THE FOLLOWING :3. IT IS ESSENTIAL THAT SERVICE PERSONNEL HAVE AVAILABLE AN ACCURATE AND
RELIABLE HIGH VOLTAGE METER. THE CALIBRATION OF THE METER SHOULD BE
SUBJECT : FIRE & SHOCK HAZARD CHECKED PERIODICALLY AGAINST A REFERENCE STANDARD. SUCH AS THE ONE
AVAlLABLE AT YOUR DISTRIBUTOR.
1. BE SURE THAT ALL COMPONENTS ARE POSITIONED IN SUCH A WAY AS TO AVOID 4. WHEN THE HIGH VOLTAGE CIRCUITRY IS OPERATING PROPERLY THERE IS NO
POSSIBILITY OF ADJACENT COMPONENT SHORTS THIS IS ESPECIALLY IMPORTANT POSSIBLITY OF AN X-RADIATION PROBLEM. EVERY TIME A COLOR CHASSIS IS
ON THOSE NODULES WHICH ARE TRANSPORTED TO AND FROM THE REPAIR SERVICED, THE BRIGHTNESS SHOULD BE RUN UP AND DOWN WHILE MONITORING
SHOP. THE HIGH VOLTAGE WITH A METER TO BE CERTAIN THAT THE HIGH VOLTAGE DOES
2. NEVER RELEASE A REPAIR UNLESS ALL PROTECTIVE DEVICES SUCH AS NOT EXCEED THE SPECIFIED VALUE AND THAT IT IS REGULATING CORRECTLY. WE
INSULATORS, BARRIERS, COVERS, SHIELDS, STRAIN RELIEFS, POWER SUPPLY SUGGEST THAT YOU AND YOUR SERVICE ORGANIZATION REVIEW TEST
CORDS, AND OTHER HARDWARE HAVE BEEN REINSTALLED PER ORIGINAL PROCEDURES SO THAT VOLTAGE REGULATION IS ALWAYS CHECKED AS A
DESIGN. BE SURE, THAT THE SAFETY PURPOSE OF THE POLARIZED LINE PLUG STANDARD SERVICING PROCEDURE, AND THAT THE HIGH VOLTAGE READING BE
HAS NOT BEEN DEFECTED. RECORDED ON EACH CUSTOMER S INVOICE
3. SOLDERING MUST BE INSPECTED TO DISCOVER POSSIBLE COLD SOLDER JOINTS,5. WHEN TROUBLESHOOTING AND MAKING TEST MEASUREMENTS IN A PROOUCT
SOLDER SPLASHES OF SHARP SOLDER POINTS. BE CERTAIN TO REMOVE ALL WITH A PROBLEM OF EXCESSIVE HIGH VOLTAGE, AVOID BEING UNNECESSARILY
LOOSE FOREIGN PARTICLES. CLOSE TO THE PICTURE TUBE AND THE HIGH VOLTAGE SUPPLY. DO NOT OPERATE
4. CHECK FOR PHYSICAL EVIDENCE OF DAMAGE OR DETERIORANN TO PARTS AND THE PRODUCT LONGER THAN IS NECESSARY TO LOCATE THE CAUSE OF
COMPONENTS, FOR FRAYED LEADS, DAMAGED INSULATION (INCLUDING A.C. EXCESSIVE VOLTAGE.
CORD), AND REPLACE IF NECESSARY. FOLLOW ORIGINAL LAYOUT, LEAD LENGTH6. REFER TO HV, B+ AND SHUTDOWN ADJUSTMENT PROCEDURES DESCRIBED IN
AND DRESS. THE APPROPRIATE SCHEMATIC AND DIAGRAMS (WHERE USED).
5. NO LEAD OR COMPONENT SHOULD TOUCH A RECEIVING TUBE OR A RESISTOR
RATED AT 1 WATT OR MORE. LEAD TENSION AROUND PROTRUDING METAL SUBJECT : IMPLOSION
SURFACES MUST BE AVOIDED.
6. ALL CRlTICAL COMPONENTS SUCH AS FUSES, FLAMEPROOF RESISTOR, 1. ALL DIRECT VIEWED PICTURE TUBES ARE EQUIPPED WITH AN INTEGRA
CAPACITORS, ETC. MUST BE REPLACED WITH EXACT FACTORY TYPES. DO NOT IMPLOSION PROTECTION SYSTEM BUT CARE SHOULD BE TAKEN TO AVOID
USE REPLACEMENT COMPONENTS OTHER THAN THOSE SPECIAL OR MAKE IAMAGE DURING INSTALLATION. AVOID SCRATCHING THE TUBE. OF SCRATCHED
UNRECOMMENDED CIRCUIT MODIFICATIONS. REPLACE IT.
7. AFTER RE-ASSEMBLY OF THE STE ALWAYS PERFORM AN A.C. LEAKAGE TEST ON2. USE ONLY RECOMMENDED FACTORY REPLACEMENT TUBES
ALL EXPOSED METALLIC PARTS OF THE CABINET. (THE CHANEL SELECTOR KNOB,
ANTENNA TERMINALS, HANDLE AND SCREWS) TO BE SURE THE SET IS SAFE TOSUBJECT : TIPS ON PROPER INSTALLATION
OPERATE WITHOUT DANCER OF ELECTRICAL SHOCK. DO NOT USE A LINE
ISOLATION TRANSFORMER DURING THIS TEST USE AN A.C. VOLTMETER, HAVING1. NEVER INSTALL ANY PRODUCT IN A CLOSED-lN RECESS, CUBBYHOLE OR
5000 OHMS PER VOLT OR MORE SENSITIVITY, IN THE FOLLOWING MANNER : CLOSELY FITTING SHELF SPACE, OVER OR CLOSE TO HEAT DUCT, OR IN THE PATH
CONNECT A 1500 OHM 10 WATT RESISTOR, PARALLELED BY A .75 MFD. 150V A.C. OF HEAIED AIR FLOW.
TYPE CAPACITOR BETWEEN A KNOWN GOOD EARTH GROUND (WATER POPE,2. AVOID CONDlTIONS OF HIGH HUMIDITY SUCH AS : OUTDOOR PAT10 INSTALLAIONS
CONDUIT, ETC) AND THE EXPOSED METALLIC PARTS, ONE AT A TIME. MEASURE WHERE DEW IS A FACTOR, NEAR STEAM RADIATORS WHERE STEAM LEAKAGE IS A
THE A.C VOLTAGE ACROSS THE COMBINATION OF 1500 OHM RESISTOR AND .15 FACTOR, ETC.
MFD CAPACITOR. REVERSE THE A.C. PLUG AND REPEAT A.C. VOLTAGE 3. AVOID PLACEMENT WHERE DRAPERIES MAY OBSTRUCT REAR VENTING.
MEASUREMENTS FOR EACH EXPOSED METALLIC PART. VOLTAGE MEASUREMENTS THE CUSTOMER SHOULD ALSO AVOID THE USE OF DECORATIVE SCARVES OR
MUST NOT EXCEED .75 VOLTS R.M.S THIS CORRESPONDS TO 0.5 MILLIAMP A.C. OTHER COVERINGS WHICH MIGHT OBSTRUCTS VENTILATION
NAY VALUE EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL SHOCK HAZARD4. WALL AHD SHELF MOUNTED INSTALLATIONS USING A COMMERCIAL MOUNTING
AND MUST BE CORRECTED IMMEDIATELY KIT, MUST FOLLOW THE FACTORY APPROVED MOUNTING INSTRUCTIONS. A
PRODUCT MOUNTED TO A SHELF OR PLATFORM MUST RETAIN ITS ORIGINAL FEET
(OR THE EQUIVALENT THICKNESS IN SPACERS) TO PROVIDE ADEQUATE AIR FLOW
ACROSS THE BOTTOM, BOLTS OR SCREWS USED FOR FASTENERS MUST NOT
TOUCH ANY PARTS OR WIRING. PERFORM LEAKAGE TEST ON CUSTOMIZED
INSTALLATIONS.
5. CAUTION CUSTOMERS AGAINST THE MOUNTING OF A PRODUCT ON SLOPING
SHELF OR A TILTED POSITION, UNLESS THE PRODUCT IS PROPERLY SECURED.
6. A PRODUCT ON A ROLL-ABOUT CART SHOULD BE STABLE ON ITS MOUNTING TO
THE CART. CAUTION THE CUSTOMER ON THE HAZARDS OF TRYING TO ROLL A
CART WITH SMALL CASTERS ACROSS THRESHOLDS OR DEEP PILE CARPETS.
7. CAUTION CUSTOMERS AGAINST THE USE OF A CART OR STAND WHICH HAS NOT
BEEN LISTED BY UNDERWRITERS LABORATORIES. INC. FOR USE WITH THEIR
SPECIFIC MODEL OF TELEVISTION RECEIVER OR GENERICALLY APPROVED FOR
USE WITH TV.S OF THE SAME OR LARGER SCREEN SIZE.
8. CAUTION CUSTOMERS AGAINST THE USE OF EXTENSION CORDS, EXPLAIN THAT A
FOREST OF EXTENSIONS SPROUTING FROM A SINGLE OUTLET CAN LEAD TO
DISASTROUS CONSEQUENCES TO HOME AND FAMILY.
SUBJECT : GRAPHIC SYMBOLS
THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN
EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE SERVICE
PERSONNEL TO THE PRESENCE OF UNINSULATED
"DANGEROUS VOLTAGE" THAT MAY BE OF SUFFICIENT
MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQULATERAL TRIANGLE
IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE
PRESENCE OF IMPORTANT SAFETY INFORMATION ON SERVICE
LITERATURE.
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ACEC
