Read Sony SLV-E160EE / SLV-E290EE / SLV-E290EG / SLV-E410AP / SLV-E410CP / SLV-E410EE / SLV-E410EX / SLV-E410IT / SLV-E410UX / SLV-E410VP Service Manual online
6-2
6-3. SYSTEM CONTROL — SYSTEM CONTROL PERIPHERAL
CIRCUIT INTERFACE (MA-249 board IC501)
6-4. SYSTEM CONTROL AND RF MODULATOR — INPUT
SELECTION BLOCK INTERFACE (MA-249 board IC501)
6-5. SYSTEM CONTROL — VIDEO BLOCK INTERFACE
(MA-249 board IC501)
Signal
Pin No.
I/O
I/O level
RESET
MA-249 Board
I
Normally “H”. “L” when service interruption is detected or restored.
IC501 #7
SO 1
MA-249 Board
O
Serial communication data to video and audio microprocessor.
IC501 &7
SCK
MA-249 Board
I
Serial communication clock with video and audio microprocessor.
IC501 &9
Signal
Pin No.
I/O
I/O level
LINE 1
MA-249 Board
O
Input select control signal.
IC501 !4
Signal
Pin No.
I/O
STOP/FF
TAPE
TAPE
PB
REC
REC
/REW
LOADING UNLOADING
PAUSE
V-PB
MA-249 Board
O
H
H
H
L
H
H
IC501 (9
RF SWP
MA-249 Board
O
*1
*1
*1
*1
*1
*1
IC501 @0
Q VD
MA-249 Board
O
L
L
L
*2
L
L
IC501 !8
SP
MA-249 Board
O
*3
*3
*3
*4
*3
*3
IC501 (8
LP
MA-249 Board
O
*6
*6
*6
*6
*6
*6
IC501 !5
REC. P
MA-249 Board
O
L
L
L
L
L
H
IC501 w
C SYNC
MA-249 Board
I
*5
*5
*5
*5
*5
*5
IC501 (3
*1.
Synchronized with drum rotation. 25Hz 50% duty pulse.
*2.
Normally “L”. “H” when video signal is not generated.
*3.
Selected by SP/EP. SP mode: “L”, EP mode: "H”.
*4.
Selected by tape recording mode.
sig/mod
SP
LP
EP
SP (10)
L
H
H
LP (12)
L
H
L
*5.
Composite sync signal (positive).
*6.
Selected by SP/EP/LP mode.
SP mode: “L”, EP mode: “H”.
6-6. SYSTEM CONTROL — AUDIO BLOCK INTERFACE
(MA-249 board IC501)
Signal
Pin No.
I/O
STOP/
TAPE
TAPE
PB
REC
REC
FF/REW LOADING UNLOADING
PAUSE
NA PB
MA-249 Board
O
L
L
L
H
L
L
IC501 t
A MUTE
MA-249 Board
O
L
L
L
L
L
L
IC501 y
REC P
MA-249 Board
O
L
L
L
L
L
H
IC501 w
SP
MA-249 Board
O
*1
*1
*1
*2
*1
*1
IC501 (8
*1.
Selected by SP/EP selector. SP mode: “L”, EP mode: “H”.
*2.
Selected by tape recording mode. SP mode: “L”, EP mode: “H”.
Click on the first or last page to see other SLV-E160EE / SLV-E290EE / SLV-E290EG / SLV-E410AP / SLV-E410CP / SLV-E410EE / SLV-E410EX / SLV-E410IT / SLV-E410UX / SLV-E410VP service manuals if exist.