42
42
MDS-SE9
7-1. BLOCK DIAGRAMS
–
MAIN SECTION
–
• Signal Path
• R-CH is omitted due to same as L-CH.
: PB(MD)
: REC(MD)
: PB(TAPE)
: REC(TAPE)
X151
8MHz
FL851
FLUORESCENT
INDICATOR
TUBE
IC851
FL DRIVER
IC702(3/3)
MD MASTER CONTROLLER
FUNCTION
KEY
S821,822
RESET
SWITCH
Q121
IC121
D121
POWER
TRANSFORMER(MAIN)
AC IN
-29V
D61
MD BUP+3.3V
BUP+4V
MD D+3.3V
D1-4
VF
VF
D105
D436
D435
D104
D103
D102
D106
RY1
D52
D51
I2C-DATA
I2C-CLK
-29V
REG
Q71
L
R
MD/TAPE
IN A
IC151
SYSTEM CONTROLLER
IC402
BUFFER
Q421
INVERTER
Q422
INVERTER
IC403
INVERTING
-29V
IC301
LOADING MOTOR DRIVE
(TAPE LOADING)
M
(OUT SW)
(IN SW)
Q851
SWITCH
VF
VF
TC A+9V
TC BUP+5V
IC111
IC101
IC102
Q852
SWITCH
FUNCTION
KEY
S811-817
FUNCTION
KEY
S801-804
I2C-DATA, I2C-CLK
MDM +5V
D+5V
H/M +5V
MD A+5V
TC M+9V
Q432
SWITCH
Q431
SWITCH
IIC CLK
MD-MONITOR(MDTC ON)
POWER RELAY
BUP+4V(E4.0V)
CN431
IIC DATA
SYSTEM
CONTROL
J401(1/2)
SELECTOR
IC401
R-CH
LIN
LOUT
L
R
MD/TAPE
OUT B
J401(2/2)
R-CH
BIAS
OSC
Q254,255
TC A+9V
ERASE
HEAD
REC/PB
HEAD
PB/REC EQ AMP
IC201
RV241
T201
REC BIAS
Q251-253
DECK BLOCK
F REC
PLAY SW
R REC
END SW
+SOL
SOLENOID
DRIVE
Q323,324
+MTR
MTR SPEED A
MTR SPEED B
MOTOR
DRIVE
Q321,322
REC
BIAS
IC202
RV321
TAPE
SPEED
R-CH
PDOWN