diff --git a/tgy.asm b/tgy.asm
index c6c5a34..8bf4cb5 100644
--- a/tgy.asm
+++ b/tgy.asm
@@ -3012,7 +3012,7 @@ wait_for_blank:
 		rcall	set_timing_degrees
 		rcall	wait_OCT1_tot		; Wait for the minimum blanking period
 
-		ldi	temp4, 24 * 256 / 120
+		ldi	temp4, 42 * 256 / 120
 		rcall	set_timing_degrees	; Set timeout for maximum blanking period
 wait_for_demag:
 		sbrs	flags0, OCT1_PENDING
@@ -3028,6 +3028,8 @@ wait_for_demag:
 		.endif
 		rjmp	wait_for_demag
 
+		ldi	temp4, 24 * 256 / 120
+		rcall	set_timing_degrees	; Set timeout for limited backtracking
 		rcall	load_timing
 		mov	XL, temp2		; Copy high and check extended byte
 		cpse	temp3, ZH		; to calculate the ZC check count