CENTER ch
2CH IN 0dB
(200m V)
-10dB
-20dB
10dB
20dB
30dB
40dB
AVRS540BT/X550BT/X250BT LEVEL2 DIAG RAM
CENTER
D/A O UT
LP F
SPK O UT
PR E A M P 1
EL ECT RIC
VO LUME
CENTER
PO WER A M P
+1.77dB
D/A
CS42528
0dBFS=5Vpp
DIFF. O U T
=1.77Vrm s
-30dBFS
0dBFS
-10dBFS
-40dBFS
+1.77dB
-20dBF S (DIG . IN)
-22.78dB FS
(A/ D IN)
FULL S C A LE LEVEL= 2Vrms
DO L BY LIM IT LEVEL (ALL ch-3dBFS)
G A IN setting of MASTER VO L 00dB
-DD C onfig2(DIG .IN)
-A/D IN(ANALOG)
=+1dB
=+1dB
CENTER ch
DSP O UT
D/A
NJU72340AFH3
-PCM or DD Config1(DIG .IN)
=-2dB
4.47V rm s/8ohm
-2dB
VO L 00
+29dB
SPK O UT
FRO N T
0dB
-10dB
-20dB
10dB
20dB
30dB
40dB
+1dB
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
26