Details Of Self-Diagnostic Function Menu; Version - Yamaha R-S300 Service Manual

● Details of Self-Diagnostic Function menu

1. VERSION

The firmware version and checksum values are displayed.
The checksum is obtained by adding the data at every 8-bit and expressing the result as a 4-figure hexadecimal
notation.
*
Numeric values in the figure are given as reference only.
V e r : E 0 6
S u m : D 8 0 2
S R V E R . A 0 0 1
R 3 ( 0 5 4 ) U ( 0 1 8 )
V e r i f y 2 5 5
1-1. FIRMWARE VERSION
The firmware version of the microprocessor (IC502 on FUNCTION P.C.B.) is displayed.
1-2. FIRMWARE CHECKSUM
The checksum value of the microprocessor (IC502 on FUNCTION P.C.B.) is displayed.
1-3. SIRIUS VERSION
Not for service.
1-4. MODEL/DESTINATION
The model name and destination are displayed.
Destination
Destination
A/D conversion value (5.0 V=255)
Model
Model name
A/D conversion value (5.0 V=255)
1-5. VERIFY
Not for service.
U C R
9 – 25 26 – 43 44 – 67
R3 (R-S300)
44 – 96
R-S300
A G
128 – 158 187 – 210
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