Performance Chart For Mechanism Logic - Yamaha K-200 Service Manual

K-2
IPERFORMANCE CHART FOR MECHANISM LOGIC
FWD
SW104 2
button -»push - -►
Cl78 charged
-► TRI 13 —
base of
TR113 -
via R202 "ON" locked by D127
I
differenti- I
ation at C176|
1C 105
pin6 "H"
pin7 "L"
REEL MOTOR
forward drive
HEAD plunger
operation
Dill
con¬
ductive
BRAKE plunger
operation
TRI20I
"ON" I
CAPSTAN MOTOR
drive
voltage to
TR 109,110
Auto Shut-off circuit
stand-by
TR II 5
"OFF"
TRI 07, 108
►
"OFF"
Muting circuit
released
REC button-► push
SWIOI
SW 101 - I, 3, 5,7,9
SW 101 -2, 4,6,8, 10
L. ch; recording circuit
established
R. ch. recording circuit
established
^ TRII5
TRI07, 108
SWI0M 1
"OFF"
"OFF"
Muting circuit
released
REC INDICATOR
lights
SW 101-12
voltage to
TR117
Tape Selector circuit
operation
Record Protection Tab
present missing
REC IHN
SW
open
closed
1C 105 pin 14
"L" "H"
1C 105 pin 15 "H"
"L"
voltage to
TR 116
Recording Bias circuit
operation
Shut-off
plunger "ON"
REC button lock
disabled