Tascam 122 Service Manual page 29

+5.311
"
R652
REC ".JTE
R628
" RECORD
0601
CrFJ
J
I
,~, I '\~"
~
.VI
IN
0602
t . .
V
o
CD
='J
I
R<Coon
I
,,~
I
'r'
- L -
Wi
IN
0603 ,r-<>
" "
I
0
R607 9
5694 H.O.
W.
t
o
0AR
R644
~M. C .
C607
U601
r
I
REC MUTE
I
R640
--'-­
r
CONTROLLEO +8
t23V
R622 kRI97
,..---"'-<6
BIAS OSC
UI03
6
RI6Z
Q)
R623
0604
RI66
VI. .. Rch
R266
CI44
REC WUTE FLIP - FLOP
®
r----------------~?
+1311
R647
R641
R643 R645 R646
R653
L LEVEL ONLY DURING )
( RECORD/REPRODUCE AND
RECORD/~USE WODE
I f
--®
WHER SENSITIVITY
R654
SWITCHING SIGNAL:
TO
®
IN Fig. 3-27
R655
I
CI60
RECORD HEAD
ERASE HEAD
Fig. 3-25 Record muting circuit
N
CD
~