File name A21B41W.pdf
PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS
IMPORTANT SAFETY NOTICE
This manual was prepared for use only by properly trained audio-visual service A.C. Voltmeter
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.
Special components are also used to prevent x-radiation, shock and fire hazard. 0.15uF
These components are indicated by the letter "x" included in their component Place this probe
Good Earth Ground
designators and are required to maintain safe performance. No deviations are on each exposed
such as the Water
allowed without prior approval by Zenith Electronics Corporation. Pipe, Conduit, etc.
1500 OHM metal part.
Circuit diagrams may occasionally differ from the actual circuit used. This way,
implementation of the latest safety and performance improvement changes into 10 WATT
the set is not delayed until the new service literature is printed.
CAUTION: Do not attempt to modify this product in any way. Never perform X-RADIATION
customized installations without manufacturer's approval. Unauthorized 1. Be sure procedures and instructions to all service personnel cover the
modifications will not only void the warranty, but may lead to property damage subject of x-radiation. The only potential source of x-rays in current TV
or user injury. receivers is the picture tube. However, this tube does not emit x-rays when
the HV is at the factory-specified level. The proper value is given in the
Service work should be performed only after you are thoroughly familiar with
applicable schematic. Operation at higher voltages may cause a failure of
these safety checks and servicing guidelines.