Read Sharp LC-15B2E (serv.man2) Service Manual online
3
LC-13B2H/M
LC-15B2H/M
LC-20B2H/M
LC-15B2H/M
LC-20B2H/M
2. GENERAL DESCRIPTION OF PRODUCT
The low-reflection black TFT liquid crystal used in the liquid crystal display provides high-contrast images
even in a bright room. The newly developed high-efficiency backlight enables high-luminance display, leading
to higher image quality. In addition, the full-range front double speaker realizes high sound quality such as
clear tones and powerful bass.
The life of the lamp used is as long as 60,000 hours. Environment-conscious designs (recycling, material
selection, etc.) and energy-saving designs have been incorporated in this product. In place of the conven-
tional mechanical appearance design of LCD televisions, this product realizes a decorative appearance de-
sign with the integral-type carrying handle, emphasized speaker section, etc.
even in a bright room. The newly developed high-efficiency backlight enables high-luminance display, leading
to higher image quality. In addition, the full-range front double speaker realizes high sound quality such as
clear tones and powerful bass.
The life of the lamp used is as long as 60,000 hours. Environment-conscious designs (recycling, material
selection, etc.) and energy-saving designs have been incorporated in this product. In place of the conven-
tional mechanical appearance design of LCD televisions, this product realizes a decorative appearance de-
sign with the integral-type carrying handle, emphasized speaker section, etc.
(1) High-quality image
A high-definition TFT LCD panel of 921,600 dots (Vertical 480 x Horizontal 640 x 3) is employed.
The low-reflection black TFT liquid crystal that restrains outside light reflection improves the contrast in a bright
room. In addition, a viewing angle of 160 deg.(vertical and horizontal) has been realized by employing the "Super
VA (Viewing Angle) (note)" technology.
Note: In this optical technology, the contrast of a liquid crystal display that varies when seen obliquely is improved
The low-reflection black TFT liquid crystal that restrains outside light reflection improves the contrast in a bright
room. In addition, a viewing angle of 160 deg.(vertical and horizontal) has been realized by employing the "Super
VA (Viewing Angle) (note)" technology.
Note: In this optical technology, the contrast of a liquid crystal display that varies when seen obliquely is improved
by using an optical compensating film between the TFT board and deflection plate, which does not affect the
image quality seen from the front.
image quality seen from the front.
(2) High luminance
The brand-new backlight system provides for the industry’s highest brightness as high as 430 cd/cm
2
. This system
is backed by some outstanding features. The lamp has been optimized in shape and inner diameter to improve the
efficiency in the lamp’s lighting efficiency and the incidence to the photoconductive plate. What’s more, the optical
sheet is made of new material and simply constructed, whereas the reflection mechanism is based on a new
technology.
efficiency in the lamp’s lighting efficiency and the incidence to the photoconductive plate. What’s more, the optical
sheet is made of new material and simply constructed, whereas the reflection mechanism is based on a new
technology.
(3) High sound quality
The 5-cm speaker unit employing a newly developed injection damper (note) that enables large power input in
spite of the small bore diameter and the closed type enclosure make it possible to reproduce bass of 100 Hz. In
addition, 7-point equalizing realizes broadband and well-balanced frequency characteristics and provides high
sound quality corresponding to the appearance design. (LC-20B2H/M)
Note: While fabric and corrugation dampers have been conventionally used to absorb the vibration of a voice coil,
spite of the small bore diameter and the closed type enclosure make it possible to reproduce bass of 100 Hz. In
addition, 7-point equalizing realizes broadband and well-balanced frequency characteristics and provides high
sound quality corresponding to the appearance design. (LC-20B2H/M)
Note: While fabric and corrugation dampers have been conventionally used to absorb the vibration of a voice coil,
this product employs a butterfly-shaped damper made from special resin.
(4) Appearance design
The thin, lightweight and space-saving design has realized a depth of about 6 cm for 20" screen and a weight that
is about one third that of a cathode ray tube television. (Table 1)
The integral-type carrying handle realizes "Home mobile audiovisual device" that is easy to carry. The product’s
appearance design that symbolizes the television of the 21st century can achieve harmony with any interior de-
signs and realizes the organic form in which one can feel familiarity and attachment.
is about one third that of a cathode ray tube television. (Table 1)
The integral-type carrying handle realizes "Home mobile audiovisual device" that is easy to carry. The product’s
appearance design that symbolizes the television of the 21st century can achieve harmony with any interior de-
signs and realizes the organic form in which one can feel familiarity and attachment.
Table-1
Power consumption
Depth
Weight
(W)
(mm)
(kg)
LCD television
LC-20B2H/M
43
*62.5
About 8.2
Cathode ray tube television 21C-FA1
99
489
About 26.6
LCD television
LC-15B2H/M
28
*58
About 4.6
Cathode ray tube television 15C-FM1
64
400
About 12.5
LCD television
LC-13B2H/M
25
*57
About 3.8
Cathode ray tube television 14C-GM1
57
360
About 8.7
(
*
:Only main body, except the stand)
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