Pioneer VSX-09TX Service Manual - Page 70

VSX-D906S, VSX-07TX, VSX-09TX • M66311FP (FL-UCOM ASSY : IC803) • LED DRIVER • Pin Function No. Name 1 MR IND. 2 LEF IND. 3 Vcc 4 DATA 5 OE 6 LATCH 7 RESET ii CLOCK 9 CND 10 11 HP RY. 12 S/C RY. 13 Speaker B KY. 14 Speaker A RY. 15 FAN 16 MPX 17 Stereo ON/OFF 18 I' 1 19 "----. 20 SL/SR 21 S 22 C 23 L/R 24 ADDIR Function LED lights up when Multimom mode is ON. L : LED lights up. LED lights up if LFE component is detected during decoding of AC3 signal. "L": LED lights up. Power supply +5V. Data line for communications with microcomputer. Output enable/disable signal, L Fixed to "L" (output enabled). Strobe line for communications with microcomputer. Reset input. Temporarily sets to `L" when the power switch is set to ON. After that, fixed to "H". Clock line for communications with microcomputer. CND. Fixed to "H". Headphone relay. H relay ON R/C relay. H : relay ON Speaker B relay. H . relay ON Speaker A relay. H : relay ON FAN control. H : ON Tuner (FM) MONO output. H . MONO output Stereo ON/OFF H : Stereo ON LED lights up when Up and Down arrow keys are enabled. L : LED lights up. LED lights up when Right and Left arrow keys are enabled. L : LED lights up. LED lights up if AC3 signal from the rear system L/R is received. L : LED lights up. LED lights up if AC3 signal from the rear system (monaural) is received. L : LED lights up. LED lights up if AC3 signal from the center system is received. L : LED lights up. LED lights up if AC3 signal from the front system L/R is received. L : LED lights up. Switching MS Port. H : Analog input, L : Other than analog input * Ou put is port output of M66311 (Set data to "L" when port output is to be set to "H".) • M66311FP (FL-UCOM ASSY : IC804) • LED DRIVER • Pin Function No. Name 1 2 3 Vcc 4 DATA 5 OE 6 LATCH 7 RESET 8 CLOCK 9 GND 10 I] 12 13 14 15 16 VCR1 IND. 17 VCR2 IND. 18 VIDEO IND. 19 DVD IND. 20 LD IND. 21 CD IND. 22 TUNER IND. 23 PHONO IND. 24 TAPE1 IND. Function Not used. Open Not used. Open Power supply +5V, Data line for communications with microcomputer. Output enable/disable signal, L Fixed to "L" (output enabled). Strobe line for communications with microcomputer. Reset input. Temporarily sets to "L" when the power switch is set to ON. After that, fixed to "1-1". Clock line for communications with microcomputer. GND Fixed to "II". Not used. Open Not used. Open Not used. Open Not used. Open Not used. Open LED lights up when function is VCR1. L LED l ghts up. LEI) lights up when function is VCR2. L : LEI) lights up. LED I ghts up when function is VIDEO. L : LED lights up. LED lights up when function is DVD. L : LED lights up. LED lights up when function is LD. L LED lights up. LED lights up when function is CD. L LED lights up. LED lights up when function is TUNER. L : LED lights up. LED lights up when function is PHONO. L . LED lights up. LED lights up when function is TAPEI. L : LED lights up. * Output is from M66311. 99