Service manual

SERVICE MANUAL (BSV-4251 BSV-4251A )
MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE
(15) If inserting high-power resistor(metal-oxide film resistor or metal film resistor) in order to repair, insert it
as 10mm away as from a board.
(16) During repairs, high voltage or high temperature components must be put away from a lead line.
(17) This is a Cold Chassis but you had better use a cold transformer for safety during repairs. If repairing
electricity source part, you must use the cold transformer.
(18) Do not place an object on the glass surface of the display.
The glass may break or be scratched.
(19) This product may be damaged if it is subject to excessive stresses (such as excessive voltage, current,
or temperature).
The absolute maximum ratings specify the limits of these stresses.
(20) The recommended operating conditions are conditions in which the normal operation of this product is
guaranteed. All the rated values of the electrical specifications are guaranteed within these conditions.
Always use the product within the range of the recommended operating conditions. Otherwise, the
reliability of the product may be degraded.
(21) This product has a glass display surface. Design your system so that excessive shock and load are not
applied to the glass. Exercise care that the vent at the corner of the glass panel is not damaged.
If the glass panel or vent is damaged, the product is inoperable.
(22) Do not cover or wrap the product with a cloth or other covering while power is supplied to the product.
(23) Before turning on power to the product, check the wiring of the product and confirm that the supply
voltage is within the rated voltage range. If the wiring is wrong or if a voltage outside the rated range is
applied, the product may malfunction or be damaged.
(24) Do not store this product in a location where temperature and humidity are high. This may cause the
product to malfunction. Because this product uses a discharge phenomenon, it may take time to light
(operation may be delayed) when the product is used after it has been stored for a long time. In this case,
it is recommended to light all cells for about 2 hours (aging).
(25) This product is made from various materials such as glass, metal, and plastic. When discarding it, be
sure to contact a professional waste disposal operator.
(26) If faults occur due to arbitrary modification or disassembly, Erae Electronics is not responsible for
function, quality or other items.
(27) Use of the product with a combination of parameters, conditions, or logic not specified in the
specifications of this product is not guaranteed. If intending to use the product in such a way, be sure to
consult Erae Electronics in advance.
(28) Within the warranty period, general faults that occur due to defects in components such as ICs will be
rectified by Erae Electronics without charge. However, IMAGE STICKING due to misapplying the above
(12) provision is not included in the warranty. Repairs due to the other faults may be charged for
depending on responsibility for the faults.
BSV-4251/4251A RD(1) 00 03/10/23 51/75