Daewoo 14C5, Руководство по обслуживанию

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Pinning
4. TDA8357J Vertical Amplifier
The TDA8357J is a power circuit for use in 90° TV systems for field frequencies of 25 to 200Hz and 16/9 picture tubes. The cir-
cuit provides a DC driven vertical deflection output circuit, operating as a highly efficient class G system. Due to the full bridge
output circuit the deflection coils can be DC coupled.
The IC is constructed in a Low Voltage DMOS process that combines Bipolar, CMOS and DMOS devices. MOS transistors are
used in the output stage because of the absence of second breakdown.
Features :
- Few external components
- Highly efficient fully DC-coupled vertical output bridge circuit
- Short rise and fall time of the vertical flyback switch
- Guard circuit
- Temperature (thermal) protection
- High EMC because of common mode inputs
Symbol Pin Description
Vcc 1 Supply voltage
OUT 2 Audio output
SVR 3 Supply Voltage Rejection
IN 4 Audio input
n.c. 5 Not Connected
S-GND 6 Signal ground
n.c. 7 Not Connected
n.c. 8 Not Connected
P-GND 9 P Ground
P-GND 10 P Ground
P-GND 11 P Ground
P-GND 12 P Ground
P-GND 13 P Ground
P-GND 14 P Ground
P-GND 15 P Ground
P-GND 16 P Ground
IC DESCRIPTION
APPENDIX