Sony WRR-805A, Service Manual

Page: 49 / 54

7-3 7-3 WRR-805A (CE, AU)
AF Level Diagram
_ 80
_ 70
_ 60
_ 50
_ 40
_
30
_ 20
_ 10
0
[dBu]
A B C D E F G H I
_ 38( , , )
_ 29.5( , , )
_ 38( )
_ 38( )
_ 22( )
_ 41( )
_ 44( )
_
58( )
_ 41.5( )
_ 23( )
_
63( )
_
77( )
_ 52.5( )
_ 59.5( )
_ 28( , ) _ 28( , )
_ 28( )
_ 47( )
_ 43.5( )
_
57.5( )
_ 40.5( )
IF-IC DISCRI OUT
MUTING OUT
LPF OUT
DE-EMPHASIS 50µs OUT
PRE-EMPHASIS 330µs OUT
DE-EMPHASIS 50µs OUT EXPANDER OUT
TRANSFORMER PRIMINALY
OUTPUT 600
Ω
The AF level shows the value when the following reference signal is
supplied to the ANTENNA A and B IN connectors from a FM SSG.
For measuring points (
A
to
I
), see schematic diagrams.
: RF level input 60 dB u , ± 5 kHz deviation at 100 kHz modulation
: RF level input 60 dB u , ± 5 kHz deviation at 1 kHz modulation
: RF level input 60 dB u , ± 5 kHz deviation at 10 kHz modulation
0 dB u = 1 u V (at no load)
0 db u = _ 113 dBm (0 = 1 mW, 50 Z load)
0 dB u = 0.775 Vrms (at no load)
.
.
Note :