6. SPECIFIC INFORMATIONS
A. Principle integrated circuits
A1. HS-2190 color TV set composed of the following sections
(1) Microprocessor control: microprocessor N901 (TMP87CM38N V2.0)and
memory N902 (AT24C08).
(2) Small signal processing: super monolithic integrated circuits N201
(TB1238AN)
(3) Sound processing and power a mplifying: integrated circuits N701
(TA8213K)
(4) Line and field scan output integrated circuits: field output integrated
circuits N402(TA8403K), line output transistor V432 (2SD1879), line
output transformer T402 (JF0501-90812)
(5) Switch power supply: switch transformer T501 (BCK-08A6), power
transistor V503 (2SC4584),
A2. Main integrated circuits:
(1) TMP87CM38N
Microprocessor
(2) TB1238AN Picture IF/sound IF/video processing/line and
field
scan/color decoding
(3) TA8403K
Field output integrated circuits
(4) TA8213K
Sound power amplifying integrated circuits
(5)
TA1275AZ SECAM decoding IC
A3. Electrical circuit analysis
1.
The integrated circuit used in this set
(1) TB1238AN: Picture intermediate frequency, sound intermediate frequency, video
signal processing, chrominance signal processing, RGB output circuit and horizontal
and vertical vibration scanning circuit.
(2) TMP87CM38N: Super central microprocessor
(3)
TA8403K
: Vertical scanning circuit.
(4)
TA8213K
: Sound amplifier circuit.
(5) LA7910: Band alternating selection switch
17
Summary of Contents for HS-2190
Page 31: ...Note the item marked have been adjusted on product line those may differ in different TV 31 ...
Page 40: ...Terminal view of transistors 2SC4237 2SD1879 2SA608 2SC536 2SB764 2SD400 40 ...
Page 43: ...C Circuit diagrams 43 ...
Page 61: ...Sincere Forever Haier Group Tel 86 532 8938356 Web site http www haier com ...