Apex Digital AT2008S - Specifications; Key Ics and Assemblies

SERVICE MANUAL
SPECIFICATIONS (AT2008S, AT2008)
Television system: NTSC-M
Channel coverage: VHF 2
13
UHF 14
69
CABLE TV:MID BAND (A-8
A-1, A I)
SUPER BAND (J
W)
HYPER BAND (AA
ZZ, AAA, BBB)
ULTRA BAND (65
94, 100 125)
Channels preset: 181
Antenna input: 75
(unbalanced)
Picture tube: Effective screen dimensions: 406mm×305mm
(15.98×12.01 in.) (Approx.)
Audio output: 2W+2W (for AT2008S only); 2W×2 (for AT2008 only) (THD
7%)
Power source:
120Vac 60Hz
Weight: 25kg (55 lbs) (Approx.)
Dimensions (W/H/D): 566×450×477mm (22.28×17.72×18.78 in.) (Approx.)
Packing dimensions (W/H/D): 640×531×540mm (25.20×20.91×21.26 in.) (Approx.)
Rated power consumption:
90W
Designs and specifications are subject to change without notice.
KEY ICS AND ASSEMBLIES
Table 1 Key ICs and Assemblies
Serial No. Position No. Model No. Function Description
1 N101 LA76814 Small signal processor
2 N301 LA7840 Vertical output circuit
3 N503 L7805 Tri-terminal regulator
4 M181 TDA7057AQ Sound power amplifier(For AT2008S only)
5 N181 TDA7056B Sound power amplifier(For AT2008 only)
6 D701 L6F3248A Microcontroller
7 D701 AT24C08 EEPROM
8
MS181 M52470AP Analog switch circuit(For AT2008S only)
9 U101 TDQ-3B8/136-F Tuner
3