ONKYO TXSR800
Manual de Servicio

TX-SR800 IC BLOCK DIAGRAMS AND DESCRIPTIONS
M66005-0001AFP(FL tube drive IC)
Vcc1 19 DISPLAY CODE RAM (8 bits 16) Vcc2 60 23 SEG36

~ ~ ~ ~ ~ ~ ~

CGROM (35 bits 160) SELECT/OUTPUT

31 SEG28 33 SEG27

~

CS SCK SDATA

14 15 16 SERIAL RECEIVE CIRCUIT CGRAM (35 bits 16) RAM write

CODE/

59 SEG01

COMMAND CONTROL CIRCUIT

SEGMENT/DIGIT SEGMENT

61
DIG16/SEG40

CIRCUIT

64

DIG13/SEG37

DECODER

RESET 13 Xin 21 CLOCK GENERATOR CIRCUIT

INDICATOR CONTROL REGISTER

code selector

17 P1 18 P0 1 DIG12 DIGIT OUTPUT CIRCUIT 12 DIG01

DISPLAY CONTROLLER

Xout 20

22 Vss

32 Vp

OUTPUT CIRCUIT