C555 A4.qxd 3/7/2005 9:32 AM Page 1-2
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS
CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY,SUBJECT : X-RADIATION
NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC-1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PER-
TURER?S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY
SONNEL COVER THE SUBJECT OF X-RADIATION. THE ONLY POTEN-
VOID THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANY
TIAL SOURCE OF X-RAYS IN CURRENT T.V. RECEIVERS IS THE PIC-
RESULTING PROPERTY DAMAGE OR USER INJURY.TURE TUBE. HOWEVER, THIS TUBE DOES NOT EMIT X-RAYS WHEN
SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE THOR-THE HIGH VOLTAGE IS AT THE FACTORY SPECIFIED LEVEL. THE
OUGHLY FAMILIAR WITH ALL OF THE FOLLOWING SAFETY CHECKSPROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC. OPERA-
AND SERVICING GUIDELINES. TO DO OTHERWISE, INCREASES THETION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PIC-
RISK OF POTENTIAL HAZARDS AND INJURY TO THE USER.TURE TUBE OR HIGH VOLTAGE SUPPLY AND, UNDER CERTAIN CIR-
WHILE SERVICING, USE AN ISOLATION TRANSFORMER FOR PROTEC-CUMSTANCES, MAY PRODUCE RADIATION IN EXCESS OF DESIR-
ABLE LEVELS.
TION FROM A.C. LINE SHOCK.
2. ONLY FACTORY SPECIFIED C.R.T. ANODE CONNECTORS MUST BE
SAFETY CHECKSUSED. DEGAUSSING SHIELDS ALSO SERVE AS X-RAY SHIELD IN
AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRCTED. ACOLOR SETS, ALWAYS RE-INSTALL THEM.
CHECK SHOULD BE MADE OF THE FOLLOWING.3. IT IS ESSNTIAL THAT SERVICE PERSONNEL HAVE AVAILABLE AN
SUBJECT : FIRE & SHOCK HAZARDACCURATE AND RELIABLE HIGH VOLTAGE METER. THE CALIBRA
TION OF THE METER SHOULD BE CHECKED PERIODICALLY
1. BE SURE THAT ALL COMPONENTS ARE POSITIONED IN SUCH A WAYAGAINST A REFERENCE STANDARD, SUCH AS THE ONE AVAILABLE
AS TO AVOID POSSIBILITY OF ADJACENT COMPONENT SHORTS.
AT YOUR DISTRIBUTOR.
THIS IS ESPECIALLY IMPORTANT ON THOSE MODULES WHICH ARE
TRANSPORTED TO AND FROM THE REPAIR SHOP.4. WHEN THE HIGH VOLTAGE CIRCUITRY IS OPERATING PROPERLY
THERE IS NO POSSIBILITY OF AN X-RADIATION PROBLEM. EVERY
2. NEVER RELEASE A REPAIR UNLESS ALL PROTECTIVE DEVICES
SUCH AS INSULATORS, BARRIERS, COVERS, SHIELDS, STRAIN TIME A COLOR CHASSIS IS SERVICED. THE BRIGHTNESS SHOULD
BE RUN UP AND DOWN WHILE MONITORING THE HIGH VOLTAGE
RELIEFS, POWER SUPPLY CORDS, AND OTHER HARDWARE HAVE
WITH A METER TO BE CERTAIN THAT THE HIGH VOLTAGE DOES
BEEN REINSTALLED PER ORIGINAL DESIGN. BE SURE THAT THE
SAFETY PURPOSE OF THE POLARIZED LINE PLUG HAS NOT BEENNOT EXCEED THE SPECIFIED VALUE AND THAT IT IS REGULATING
CORRECTLY, WE SUGGEST THAT YOU AND YOUR SERVICE ORGA-
DEFEATED.
NIZATION REVIEW TEST PROCEDURES SO THAT VOLTAGE REGU-
3. SOLDERING MUST BE INSPECTED TO DISCOVER POSSIBLE COLDLATION IS ALWAYS CHECKED AS A STANDARD SERVICING PROCE-
SOLDER JOINTS, SOLDER SPLASHES OR SHARP SOLDER POINTS.DURE. AND THAT THE HIGH VOLTAGE READING BE RECORDER ON
BE CERTAIN TO REMOVE ALL LOOSE FOREIGN PARTICLES.EACH CUSTOMER?S INVOICE.
4. CHECK FOR PHYSICAL EVIDENCE OF DAMAGE OR DETERIORATION5. WHEN TROUBLESHOOTING AND MAKING TEST MEASUREMENTS IN
TO PARTS AND COMPONENTS. FOR FRAYED LEADS, DAMAGEDA PRODUCT WITH A PROBLEM OF EXCESSIVE HIGH VOLTAGE,
INSULATION (INCLUDING A.C. CORD). AND REPLACE IF NECESSARYAVOID BEING UNNECESSARILY CLOSE TO THE PICTURE TUBE AND
FOLLOW ORIGINAL LAYOUT, LEAD LENGTH AND DRESS.THE HIGH VOLTAGE SUPPLY. DO NOT OPERATE THE PRODUCT
5. NO LEAD OR COMPONENT SHOULD TOUCH A RECIVING TUBE ORLONGER THAN IS NECESSARY TO LOCATE THE CAUSE OF EXCES
A RESISTOR RATED AT 1 WATT OR MORE. LEAD TENSION AROUNDSIVE VOLTAGE.
PROTRUNING METAL SURFACES MUST BE AVOIDED.6. REFER TO HV. B+ AND SHUTDOWN ADJUSTMENT PROCEDURES
6. ALL CRITICAL COMPONENTS SUCH AS FUSES, FLAMEPROOFDESCRIBED IN THE APPROPRIATE SCHEMATIC AND DIAGRAMS
RESISTORS, CAPACITORS, ETC. MUST BE REPLACED WITH EXACT(WHERE USED).
FACTORY TYPES, DO NOT USE REPLACEMENT COMPONENTSSUBJECT: IMPLOSION
OTHER THAN THOSE SPECIFIED OR MAKE UNRECOMMENDED CIR-
1. ALL DIRECT VIEWED PICTURE TUBES ARE EQUIPPED WITH AN INTE
CUIT MODIFICATIONS.
GRAL IMPLOSION PROTECTION SYSTEM, BUT CARE SHOULD BE
7. AFTER RE-ASSEMBLY OF THE SET ALWAYS PERFORM AN A.C.TAKEN TO AVOID DAMAGE DURING INSTALLATION, AVOID
LEAKAGE TEST ON ALL EXPOSED METALLIC PARTS OF THE CABI-SCRATCHING THE TUBE. IF SCRATCHED REPLACE IT.
NET, (THE CHANNEL SELECTOR KNOB, ANTENNA TERMINALS. HAN-
2. USE ONLY RECOMMENDED FACTORY REPLACEMENT TUBES.
DLE AND SCREWS) TO BE SURE THE SET IS SAFE TO OPERATE
WITHOUT DANGER OF ELECTRICAL SHOCK. DO NOT USE A LINE SUBJECT : TIPS ON PROPER INSTALLATION
ISOLATION TRANSFORMER DURING THIS TEST USE AN A.C. VOLT-1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS, CUBBY-
METER, HAVING 5000 OHMS PER VOLT OR MORE SENSITIVITY, INHOLE OR CLOSELY FITTING SHELF SPACE. OVER OR CLOSE TO
THE FOLLOWING MANNER; CONNECT A 1500 OHM 10 WATT RESIS-HEAT DUCT, OR IN THE PATH OF HEATED AIR FLOW.
TOR, PARALLELED BY A .15 MFD. 150.V A.C TYPE CAPACITOR
BETWEEN A KNOWN GOOD EARTH GROUND (WATER PIPE, CON-2. AVOID CONDITIONS OF HIGH HUMIDITY SUCH AS: OUTDOOR PATIO
DUIT, ETC.) AND THE EXPOSED METALLIC PARTS, ONE AT A TIME.INSTALLATIONS WHERE DEW IS A FACTOR, NEAR STEAM RADIA-
MEASURE THE A.C. VOLTAGE ACROSS THE COMBINATION OF 1500 TORS WHERE STEAM LEAKAGE IS A FACTOR, ETC.
OHM RESISTOR AND .15 MFD CAPACITOR. REVERSE THE A.C. PLUG3. AVOID PALCEMENT WHERE DRAPERIES MAY OBSTRUCT REAR
AND REPEAT A.C. VOLTAGE MEASUREMENTS FOR EACH EXPOSED VENTING. THE CUSTOMER SHOULD ALSO AVOID THE USE OF DEC-
METALLIC PART. VOLTAGE MEASURED MUST NOT EXCEED 75ORATIVE SCARVES OR OTHER COVERINGS WHICH MIGHT
VOLTS R.M.S. THIS CORRESPONDS TO 0.5 MILLIAMP A.C ANYOBSTRUCT VENTILATION.
VALUE EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL SHOCK
HAZARD AND MUST BE CORRECTED IMMEDIATELY.4. WALL AND SHELF MOUNTED INSTALLATIONS USING A COMMER-
CIAL MOUNTING KIT. MUST FOLLOW THE FACTORY APPROVED
MOUNTING INSTRUCTIONS A PRODUCT MOUNTED TO A SHELF OR
PLATFORM MUST RETAIN ITS ORIGINAL FEET (OR THE EQUIVALENTA.C.VOLTMETER
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.
GOOD EARTH GROUNDPLACE THIS PROBE6. A PRODUCT ON A ROLL-ABOUT CART SHOULD BE STABLE ON ITS
SUCH AS THE WATERON EACH EXPOSEDMOUNTING TO THE CART. CAUTION THE CUSTOMER ON THE HAZ-
PIPE. CONDUIT. ETCMETAL PARTARDS 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
SUBJECT: GRAPHIC SYMBOLSWHICH HAS NOT BEEN LISTED BY UNDERWRITERS LABORATORIES,
THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHININC. FOR USE WITH THEIR SPECIFIC MODEL OF TELEVISION
AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THERECEIVER OR GENERICALLY APPROVED FOR USE WITH T.V.?S OF
SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATEDTHE SAME OR LARGER SCREEN SIZE.
?DANGEROUS VOLTAGE?THAT MAY BE OF SUFFICIENT MAGNI-
8. CAUTION CUSTOMERS AGAINST THE USE OF EXTENSION CORDS,
TUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.EXPLAIN THAT A FOREST OF EXTENSIONS SPROUTING FROM A SIN-
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIAN-GLE OUTLET CAN LEAD TO DISASTROUS CONSEQUENCES TO
GLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TOHOME AND FAMILY.
THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN
SERVICE LITERATURE.
1-2 |
ACEC
NAD
