Pioneer VSX-D906S Service Manual - Page 70

M66311fp Fl-ucom Assy : Ic803, Led Driver, M66311fp Fl-ucom Assy : Ic804

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VSX-D906S, VSX-07TX, VSX-09TX ~ M66311FP (FL-UCOM ASSY : IC803) ~ LED DRIVER ~ Pin Function No. Name MR IND. LEF IND. Vcc DATA OE LATCH RESET CLOCK GND 10 HP RY. 12 S/C RY 13 Speaker B RY. 14 Speaker A RY. 15 FAN 16 MPX 17 Stereo ON/OFF 18 19 20 SL/SR 21 22 23 'i4 ADDIR Function LED lights up when Multiroom 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. GND. 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 ) M ONO 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 mceived. 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 &om the front system L/R is received. L : LED lights up. Switching MS Port. H : Analog input. L : Other than analog input * Output 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 o Pin Function No. Name Function Not used. Open Not used. Open Vcc DATA OE Power supply +5V, Data line for communications with microcomputer. Output enable/disable signal. L ; Fixed to "L " (output enabled). LATCH RESET CLOCK GND Strobe line for communications with microcomputer. R eset input. Temporarily sets to "L " when the power switch is set to ON. After that, fixed to " H " . Clock line for communications with microcomputer. GND 10 F ixed to "H" . Not used. Open 12 Not used. Open Not used. Open 14 Not used. Open 15 Not used. Open 16 VCR I IND 17 VCR2 IND LED lights up when function is VCR I. L : LED lights up. LED lights up when function is VCR2. L : LED lights up. 18 VIDEO I ND . 19 D V D IN D . LED lights up when function is VIDEO. L : LED lights up. LED lights up when function is DVD. L : LED lights up. 20 LD IND 21 CD IND LED lights up when function is LD. L : LED lights up. LED lights up when function is CD. L : LED lights up. 22 TUNER IND 23 PHONO IND. LED lights up when function is TUNER. L : LED lights up. LED lights up when function is PHONO. L : LED lights up. 24 T A PE1 IND . LED lights up when function is TAPE1. L : LED lights up. * Output is from M66311. 99

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VSX-D906S, VSX-07TX, VSX-09TX
~ M66311FP (FL-UCOM ASSY : IC803)
~ LED DRIVER
~ Pin Function
No.
Name
Function
MR IND.
LED lights up when Multiroom mode is ON. L : LED lights up.
LEF IND.
LED lights up if LFE component is detected during decoding of AC3 signal. "L": LED lights up.
Vcc
Power supply +5V.
DATA
Data line for communications with microcomputer.
OE
Output enable/disable signal, L : Fixed to "L" (output enabled).
LATCH
Strobe line for communications with microcomputer.
RESET
Reset input. Temporarily sets to "L" when the power switch is set to ON. After that. fixed to "H".
CLOCK
Clock line for communications with microcomputer.
GND
GND.
10
Fixed to -H".
HP RY.
Headphone relay. H: relay ON
12
S/C RY
R/C
relay. H: relay ON
13
Speaker B RY.
Speaker B relay. H: relay ON
14
Speaker A RY.
Speaker A relay. H: relay ON
15
FAN
FAN control. H: ON
16
MPX
Tuner (FM) MONO output. H : MONO output
17
Stereo ON/OFF
Stereo ON/OFF H : Stereo ON
18
LED lights up when Up and Down arrow keys are enabled. L : LED lights up.
19
LED lights up when Right and Left arrow keys are enabled. L : LED lights up.
20
SL/SR
LED lights up if AC3 signal from the rear system L/R is received. L: LED lights up
21
LED lights up if AC3 signal from the rear system (monaural) is mceived. L: LED lights up.
22
LED lights up if AC3 signal from the center system is received. L: LED lights up.
23
LED lights up if AC3 signal &om the front system L/R is received. L: LED lights up.
'i4
ADDIR
Switching MS Port. H: Analog input. L: Other than analog input
* Output 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
o Pin Function
No.
Name
Function
Not used. Open
Not used. Open
Vcc
Power supply +5V,
DATA
Data line for communications with microcomputer.
OE
Output enable/disable signal. L ; Fixed to "L" (output enabled).
LATCH
Strobe line for communications with microcomputer.
RESET
R eset input. Temporarily sets to "L" when the power switch is set to ON. After that, fixed to "H" .
CLOCK
Clock line for communications with microcomputer.
GND
GND
10
Fixed to "H".
Not used. Open
12
Not used. Open
Not used. Open
14
Not used. Open
15
Not used. Open
16
VCRI IND
LED lights up when function is VCR I. L : LED lights up.
17
VCR2 IND
LED lights up when function is VCR2. L : LED lights up.
18
VIDEO
IND.
LED lights up when function is VIDEO. L : LED lights up.
19
DVD IND.
LED lights up when function is DVD. L: LED lights up.
20
LD IND
LED lights up when function is LD. L : LED lights up.
21
CD IND
LED lights up when function is CD. L : LED lights up.
22
TUNER IND
LED lights up when function is TUNER. L : LED lights up.
23
PHONO IND.
LED lights up when function is PHONO. L : LED lights up.
24
TAPE1 IND.
LED lights up when function is TAPE1. L: LED lights up.
* Output is from M66311.
99