112
4.3. Analog audio
No sound is output
Is the voltage of ±7V supplied to
A POWER B'D N3902 1-3pin?
Is the audio signal transmitted to
AMP CONNECT B'D N9002,N9016?
Is the serial data for electronic volume
transmitted to CONNECT B'D N3002
6,7pin?
Once more, checking the connection of the connector.
When can specify the trouble of the channel and function, check signal route where it
corresponds.
The power supply of ±7V is repaired.
The power amplifier is repaired.
Is the connector correctly connected
with DIGITAL B'D?
Connect the connectors properly.
The DIGITAL B'D is repaired.
YES
NO
YES
NO
NO
YES
NO
YES
Summary of Contents for AVR-4520
Page 32: ...32 Personal notes...
Page 102: ...102 Personal notes...
Page 124: ...124 LEVEL DIAGRAM FRONT ch I V I V GAIN ADJ ANALOG ATT SPEAKER OUT REC OUT LEVEL DIAGRAM...
Page 125: ...125 LEVEL DIAGRAM CENTER ch I V I V GAIN ADJ SPEAKER OUT...
Page 126: ...126 LEVEL DIAGRAM SUBWOOFER ch I V I V 10dBFS DD IN Config1 GAIN ADJ SPEAKER OUT...
Page 127: ...127 LEVEL DIAGRAM SURROUND ch I V I V GAIN ADJ SPEAKER OUT...
Page 128: ...128 LEVEL DIAGRAM SURR BACK ch I V I V GAIN ADJ SPEAKER OUT...
Page 129: ...129 LEVEL DIAGRAM FRONT HEIDHT ch I V I V GAIN ADJ SPEAKER OUT...
Page 130: ...130 LEVEL DIAGRAM FRONT WIDE ch I V I V GAIN ADJ SPEAKER OUT...
Page 131: ...131 LEVEL DIAGRAM ZONE2 3...
Page 183: ...183 Personal notes Personal notes...
Page 195: ...195 R5F3650NNFB DIGITAL U2101...
Page 209: ...209 MX29LV160DBTI 70G NETWORK DSP U0103 U0203 U0303 MX29LV160DBTI 70G Block Diagram...
Page 213: ...213 AK5358BET DIGITAL U0141 AK5358BET Pin Function...
Page 218: ...218 ADV7850KBCZ 5 DIGITAL U1102 ADV7850...
Page 236: ...236 2 FL DISPLAY FLD 17 BT 40GINK SPK SMPS Z6801 PIN CONNECTION GRID ASSIGNMENT Y2 q...
Page 237: ...237 ANODE CONNECTION...