Read Sony SLV-LX80S Service Manual online
5-2
5-3. SYSTEM CONTROL — SYSTEM CONTROL PERIPHERAL CIRCUIT INTERFACE
(MA-397 BOARD IC160)
5-4. SYSTEM CONTROL AND RF MODULATOR — INPUT SELECTION BLOCK INTERFACE
(MA-397 BOARD IC160)
Signal
ANT SEL
Pin No.
MA-397 Board
IC160wa
I/O
O
I/O level
“H” when RF modulator through.
5-5. SYSTEM CONTROL — VIDEO/RP BLOCK INTERFACE (MA-397 BOARD IC160)
Signal
RF SWP
QVD
C SYNC
Pin No.
MA-397 Board
IC160qk
MA-397 Board
IC160qd
MA-397 Board
IC160tk
TAPE
LOADING
*1
L
*3
TAPE
UNLOADING
*1
L
*3
STOP/FF
/REW
*1
L
*3
PB
*1
*2
*3
REC
*1
L
*3
I/O
O
O
I
REC/
PAUSE
*1
L
*3
*1. Synchronized with drum rocation, 30Hz 50% duty pulse.
*2. Normal “L”, “H” when video signal is not rgenerated.
*3. Composite sync signal (positive).
*2. Normal “L”, “H” when video signal is not rgenerated.
*3. Composite sync signal (positive).
5-6. SYSTEM CONTROL — AUDIO BLOCK INTERFACE (MA-397 BOARD IC160)
Signal
A MUTE
AF REC P
Pin No.
MA-397 Board
IC160yd
MA-397 Board
IC160ws
TAPE
LOADING
L
L
TAPE
UNLOADING
L
L
STOP/FF
/REW
L
L
PB
L
L
REC
L
H
I/O
O
O
REC/
PAUSE
L
L
Signal
RESET
I2C DATA 1
I2C CLOCK 1
I2C DATA VIDEO
I2C CLOCK VIDEO
(ARC) S OUT 1
(ARC) CLK 1
Pin No.
MA-397 Board
IC160ef
MA-397 Board
IC160es
MA-397 Board
IC160ea
MA-397 Board
IC160us
MA-397 Board
IC160ua
MA-397 Board
IC160rs
MA-397 Board
IC160ra
I/O
I
I/O
O
I/O
O
I/O
O
I/O level
Normally “H”, “L” when service interruption detected or restored.
Serial communication data to EEPROM I2C161.
Serial communication clock to EEPROM I2C161.
Serial communication data to video and audio microprocessor.
Serial communication clock to video and audio microprocessor.
Serial communication data to ARC microprocessor.
Serial communication clock to ARC microprocessor.
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