Sony SLV-L49 / SLV-L52 / SLV-L59 / SLV-L69HF / SLV-L72HF / SLV-L79HF / SLV-L89HF / SLV-X55 / SLV-X66HF Service Manual ▷ View online
SLV-L49/L52/L59/L69HF/L72HF/L79HF/L89HF/X55/X66HF
4-23
4-24
DS-84 (TAPE OPERATION) PRINTED WIRING BOARD
— Ref. No. DS-84 Board; 3,000 Series —
DS-84 (TAPE OPERATION) SCHEMATIC DIAGRAMS
— Ref. No. DS-84 Board; 3,000 Series —
3
TAPE OPERATION/LINE IN
DS-84/JK-168
DI-70
(DIAL TIMER SWITCH)
JK-168
(LINE IN)
AR-20
(ARC)
(ARC)
DS-84
(TAPE OPERATION)
(TAPE OPERATION)
MA-341
VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER, POWER SUPPLY
VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER, POWER SUPPLY
JK-168 (LINE IN) PRINTED WIRING BOARD
— Ref. No. JK-168 Board; 4,000 Series —
JK-168 (LINE IN) SCHEMATIC DIAGRAMS
— Ref. No. JK-168 Board; 4,000 Series —
DI-70
(DIAL TIMER SWITCH)
JK-168
(LINE IN)
AR-20
(ARC)
(ARC)
DS-84
(TAPE OPERATION)
(TAPE OPERATION)
MA-341
VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER, POWER SUPPLY
VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER, POWER SUPPLY
There are few cases that the part printed on this diagram isn’t mounted in this model.
There are few cases that the part printed on this diagram isn’t mounted in this model.
4-25E
AR-20 (ARC) PRINTED WIRING BOARD
— Ref . No. AR-20 Boar d; 5,000 Ser ies —
DI-70
(DIAL TIMER SWITCH)
JK-168
(LINE IN)
AR-20
(ARC)
(ARC)
DS-84
(TAPE OPERATION)
(TAPE OPERATION)
MA-341
VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER, POWER SUPPLY
VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER, POWER SUPPLY
(SLV-L52/L72HF/L89HF MODEL)
AR-20 (ARC) SCHEMATIC DIAGRAMS
— Ref . No. AR-20 Boar d; 5,000 Ser ies —
SLV-L49/L52/L59/L69HF/L72HF/L79HF/L89HF/X55/X66HF
There are few cases that the part printed on this diagram isn’t
mounted in this model.
mounted in this model.
5-1
SECTION 5
INTERFACE, IC PIN FUNCTION DESCRIPTION
SLV-L49/L52/L59/L69HF/L72HF/L79HF/L89HF/X55/X66HF
5-1. SYSTEM CONTROL — MECHANISM BLOCK INTERFACE
(MA-341 BOARD IC160)
*1
“L” When erasing protection tab is bent. “H” when not bent.
*2
Pulse of period in proportion to reel rotating speed.
*3
Approx. 2 msec period “H” pluse when tape top or end is detected.
*4
Normally “L”. 2 msec period “H” puise when tape top or end is detected.
*5
Hi-Z
Signal
CAM
MODE 1
MODE 2
MODE 3
MODE 4
REC PRF
T REEL
S REEL
END LED
T SENS
S SENS
Pin No.
MA-341 Board
IC160#£
MA-341 Board
IC160@ª
MA-341 Board
IC160@•
MA-341 Board
IC160@¶
MA-341 Board
IC160@§
MA-341 Board
IC160#º
MA-341 Board
IC160*º
MA-341 Board
IC160&ª
MA-341 Board
IC160@º
MA-341 Board
IC1607
MA-341 Board
IC1606
I/O
O
I
I
I
I
I
I
I
O
I
I
EJECTED
*5
—
—
—
—
L
H/L
H/L
L
*3
*3
CASSETTE
LOARDING
LOARDING
H
—
—
—
—
*1
H/L
H/L
*3
*3
*3
CASSETTE
UNLOARDING
L
—
—
—
—
*1
H/L
H/L
*3
*3
*3
TAPE
THREADING
H
—
—
—
—
*1
H/L
*2
*3
*4
*4
TAPE
UNTEREADING
L
—
—
—
—
*1
H/L
*2
*3
*4
*4
STOP
*5
H
L
H
H
*1
H/L
H/L
*3
*4
*4
REW
*5
H
L
H
L
*1
*2
*2
*3
*4
*4
FF
*5
H
L
H
L
*1
*2
*2
*3
*4
*4
PB
*5
H
H
L
L
*1
*2
*2
*3
*4
*4
REC
*5
H
H
L
L
*1
*2
*2
*3
*4
*4
5-2. SYSTEM CONTROL — SERVO PERIPHERAL CIRCUIT INTERFACE
(MA-341 BOARD IC160)
*1. 30Hz pulse.
*2. Pulse of period in propotion to tape speed.
*3. 30Hz “H” pluse.
*4. 720 Hz pulse.
*5. Unstable period pulse.
*6. DC voltage 1 – 5V.
*7. Hi-Z (2.5V)
*2. Pulse of period in propotion to tape speed.
*3. 30Hz “H” pluse.
*4. 720 Hz pulse.
*5. Unstable period pulse.
*6. DC voltage 1 – 5V.
*7. Hi-Z (2.5V)
Signal
CTL IN+
DRUM PG
DRUM FG
CAP FG
CAP RVS
CAP ERR
DRUM ERR
Pin No.
MA-341 Board
IC160(∞
MA-341 Board
IC160(º
MA-341 Board
IC160*ª
MA-341 Board
IC160*¶
MA-341 Board
IC160@¢
MA-341 Board
IC160&§
MA-341 Board
IC160&¶
I/O
O
I
I
I
O
O
O
TAPE
THREADING
*7
*3
*4
*5
L
*6
*6
TAPE
UNTEREADING
*7
*3
*4
*5
H
*6
*6
STOP
*7
*3
*4
H/L
H/L
L
*6
REW
*7
*3
*4
*2
H
*6
*6
FF
*7
*3
*4
*2
L
*6
*6
PB
*7
*3
*4
*2
L
*6
*6
REC
*1
*3
*4
*2
L
*6
*6
5-2
5-3. SYSTEM CONTROL — SYSTEM CONTROL PERIPHERAL CIRCUIT INTERFACE
(MA-341 BOARD IC160)
* ; L52: PA/PC, L72HF: PA/PC, L89HF: MX/CS/VZ model only
5-4. SYSTEM CONTROL AND RF MODULATOR — INPUT SELECTION BLOCK
INTERFACE (MA-341 BOARD IC160)
Signal
RESET
I2C DATA 1
I2C CLOCK 1
I2C DATA VIDEO
I2C CLOCK VIDEO
*(ARC) S OUT 1
*(ARC) CLK 1
Pin No.
MA-341 Board
IC160#¢
MA-341 Board
IC160#™
MA-341 Board
IC160#¡
MA-341 Board
IC160&™
MA-341 Board
IC160&¡
MA-341 Board
IC160$™
MA-341 Board
IC160$¡
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.
Signal
ANT SEL
Pin No.
MA-341 Board
IC160@¡
I/O
O
I/O level
“L” when RF modulator through.
5-5. SYSTEM CONTROL — VIDEO/RP BLOCK INTERFACE (MA-341 BOARD IC160)
Signal
RF SWP
QVD
C SYNC
Pin No.
MA-341 Board
IC160!•
MA-341 Board
IC160!£
MA-341 Board
IC160%•
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-341 BOARD IC160)
Signal
A MUTE
AF REC P
Pin No.
MA-341 Board
IC160^£
MA-341 Board
IC160@™
TAPE
LOADING
L
L
TAPE
UNLOADING
L
L
STOP/FF
/REW
L
L
PB
L
L
REC
L
L
I/O
O
O
REC
PAUSE
H
H
•
Abbreviation
MX : Mexican
PA
MX : Mexican
PA
: Panama
PC
: Colombia
CS
: Chilian, Bolivia, Peru
VZ
: Venezuelan
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