Yamaha HTR-5920 Service Manual - Page 6

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Yamaha HTR-5920 Service Manual
HTR-5920
• FIRMWARE VERSION (Microprocessor information)
To display the firmware version, do the following procedure.
1. Press the "STANDBY/ON" key while simultaneously pressing those two keys of the main unit as indicated in the
figure below.
2.
060105-01
* Numeric values in the figure example are for reference.
3. Press "STANDBY/ON" key.
I INTERNAL VIEW
1
2
3
0
A
6
Keys of main unit
Turn on the power while pressing these keys.
4
5
6
B
1
AMP (2) P.C.B.
2
AMP (3) P.C.B.
3
POWER TRANSFORMER
4
AMP (7) P.C.B.
5
AMP (1) P.C.B.
7
6
INPUT P.C.B.
8
7
AMP (4) P.C.B.
8
AMP (5) P.C.B.
9
AMP (6) P.C.B.
9
0
FRONT (3) P.C.B.
A
FRONT (2) P.C.B.
B
FRONT (1) P.C.B.