Sharp DX-361HM Service Manual page 32

®
I
loading a Test Disc
'f
I
Play
I
D-1
The disc is Check point
not initialized
Output from pin 4 (DODS) of IC4.
Input to pin 32 (HFI) of IC5.
Output/input from pin 12 (QRA) of IC4.
Output from pin 13 (QCl) of IC4.
Input to pin 14 (QDA) of IC4.
Output from pin 6 (SWAB/SSM) of IC4.
See Table 7.
There is no audio
Check piont
D-2
output from
both land R Output from pins 2 (DAABl, 3 (ClAB) and
channels.
4 (WSAB) of IC5.
Output from pin 17 (MUSB) of IC4.
Dual D/A converter IC7 and D-RAM IC6.
Transistor Q2. See Table 8.
There is no audio Check point
D-3 output from L
channel. Dual D/ A converter IC7.
Buffer amp. and L.P.F IC10 ~ IC12.
Transistor Q9.
There is no audio Check point
D-4
output from R
channel. Dual D/A converter IC7.
Buffer amp. and
L.P.F.IC10~
IC12.
Transistor Q10.
D-5
The de-emphasis Check point
does not function.
Output from pin 41 (DEEM/DINT1) of IC5.
Transistors 03, Q4, Q7 and Q8.
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