JVC HR-A47U manual 30 EN, Auto SP = EP Timer, Video Stabilizer, Blue Back, For Example

30 EN		OTHER USEFUL FUNCTIONS (cont.)
		* The default setting is bold in the table below.
AUTO SP = EP TIMER	When this function is set to “ON”, the VCR automatically switches to EP
ON	mode to allow complete recording if there is not enough tape to record
OFF	the entire program while timer-recording in SP mode.
	For Example . . .
	Recording a program of 140 minutes in length onto a 120-minute tape
		Approximately 110 minutes	Approximately 30 minutes
		SP mode	EP mode
	Make sure you set this function to “ON” before the timer-recording starts.
	NOTES:
	If you have programed the VCR to timer-record 2 or more programs, the second
	program and those thereafter may not fit on the tape with this function set to
	“ON”. In this case, do not use this function, but change the tape speed
	manually during timer programing.
	In order to ensure that the recording fits on the tape, this function may leave a
	slight non-recorded portion at the end of the tape.
	There may be some noise and sound disturbance where the tape speed switches
	from SP to EP mode on the tape.
	This function is not available during ITR (Instant Timer Recording), and will not
	work properly on the following tapes: T(ST)-30, T(ST)-60, T(ST)-90, and T(ST)-
	120.
VIDEO STABILIZER	When this function is set to “ON”, you can automatically correct vertical
ON	vibrations in the picture when playing back unstable recordings made on
OFF	another VCR.
	NOTES:
	When you finish viewing a tape, be sure to set this function to “OFF”.
	Regardless of the setting, this function has no effect during recording and during
	special effects playback.
	The on-screen display may jitter vertically when this function is set to “ON”.
	To watch recordings with close-caption, set this function to “OFF”.
BLUE BACK	When this function is set to “ON”, the TV screen becomes all blue in the
ON	following cases:
OFF	When receiving a channel not in use.
	When stopping playback.
	NOTE:
	When you want to receive an unstable channel with poor signals, set this function
	to “OFF”.