Pioneer XR-P640M service manual XR-P740M, XR-P64M, XR-P340M xR-P7 44, XR-P640, XR-P34, Tzv, +t2v

XR-P740M, XR-P64()M, XR-P340M xR-P7 44, XR-P640, XR-P34()

a Pin Functionof Power Amo Module

Connector No.	Name	UO		Description
	+ 12V.M	o	+ 12Vseparatesystemstabilizedoutput
2	UNREG 12		Unstabilizedpower input for - 12V
3	AC	I	AC detecrioninput:for powerON/OFFandMUTE.
4	tzv	o	Stabilizedpower output for - 12V
5	MUTE	vo	Mute external input; outputs intemal mut€ conditions;cancelsforced mute.
6	REF,GND	I	GND Ior protective circuit; referenceGND for short detection
cN7l01	BLOW	I	BLOW circuit extemal output; ON at :t0.5V or mo!e.
7
8	REG.GND	I	ReferenceGND for stabilizedpower source
9	UNREG+5	I	Unstabilizedpowerinputfor +5.6V
10	UNREG+ 12	I	Unstabilizedpowerinputfor +12V and +12V. M
1 1	+5 . 6V	o	+5.6V stabilizedoutput
T2	+t2v	o	+ 12V stabilizedoutput
1	C I N	I	Center signal input
2	S. GND	I	Signal input GND; floating interior type
3	s r N	I	Surround signal input
4	OVERLOAD	I	Short detectioninput for Surround and Center channels
cN7l02	+82	I	Power supply (+)	for Surround and Center channels
5
6	82	I	Power supply (-)	for Surrcund and Center channels
7	C OUT	o	Centerspeakeroutput
8	S OUT	o	Surround speakeroutput
I	REF.GND	I	ReferenceGND lor short detection
2	L OUT	o	Left speakeroutput
3	R OUT	o	Right speakeroutput
4	FAN	I	Forced fan circuit input (LOW speed)
5	+ 8 1	I	Power supply (*)	for L/R channels
cN7502	B1		Power supply (	) for L/R channels
6
7	SHORT		Short detectioninput for I-./Rchannels
8	L I N		Left signal input
9	F. GND		Signal input GND; floating interior type
10	R I N		Right signal input