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 U T
PR E AM P1
EL ECTR IC
VO LUM E
CENTER
PO WER AM 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 SCALE LEVEL= 2 V rm s
DO LBY L IM IT LEVEL (ALL ch- 3dBFS)
G AIN setting of M ASTER VO L 00dB
-DD C onf ig2(DIG .IN)
-A/D IN (ANALOG)
=+1dB
=+1dB
CENTER ch
DSP O UT
D/A
NJU72340AFH3
-PCM or DD Config1(D IG.IN)
=-2dB
4.47Vrm s/8ohm
-2dB
VO L 00
+29dB
SPK O U T
FRO NT
0dB
-10dB
-20dB
10dB
20dB
30dB
40dB
+1dB
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
26