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Ic Illustration - Akai 21CTS92FS Service Manual

Colour tv set

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The outputs (pins 4 and 7) are connected to the series connection of the vertical deflection coil and
feedback resistor R404 and R406. The voltage across R404 and R406. is fed via pin 1 to obtain a
deflection current which is proportional to the drive voltage. The supply voltage for the TDA8177 is
17V at pin 3. The flyback generator has a separate supply voltage of
guard signal is available. For HF loop stability a damping resistor R407 is connected across the
deflection coil.
6
. Power supply
T
he IC of KA5Q0765RT is adapted in this chassis; it is the product of Fairchild. It supplies four
DC voltages, one is the +B=110V, another is Hcc=26V, the third is 13V (the sound drive voltage),
the fourth is +16V. The +16V can generate the +8V, +5V and +3.3V by the special generators.

5 . IC illustration

Fig.1 TDA93X1 illustration
6
V on pin 6. On pin 4 a vertical

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