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Panasonic PV-4601 A Service Manual page 175

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TIMING CHART 4
ACTION
PAUSE
POSITION
9
8
7
TIME ms*
400
2.6S
300 2.6S 100
LOADING
FWD(H)
(PIN 10)
4A-2
LOADING
4A-1
REV(H)
(PIN 9)
CAPSTAN
ON(H)
4A-4
H
CAPSTAN
M
R(H)/S(M)/F(L)
(PIN 42)
CYLINDER
ON(L)
L
VIDEO DELAY
REC(H)
(PIN 37)
NOTE: 1) PIN NO. WITH BRACKET INDICATES PIN NO. OF IC6001.
2) *:IT SHOWS MAXIMUM TIME.
MODE BY MODE OPERATION
4. REC TO REC PAUSE/REC PAUSE TO REC
4A. REC TO REC PAUSE
4A-1. Changes the mechanism position to 5(REV).
4A-2. Apply a brake to the Loading Motor.
/4A-3.
4A-4. The Idler Gear swings over to Supply Reel.
4A-5. Rewind the tape for 3.2 sec(SP)/1.6 sec(LP)/1.06 sec(SLP).
4A-6. Changes the mechanism position to 9(PLAY POSITION).
4A-7. Apply a brake to the Loading Motor.
/4A-8.
4A-9. The Idler Gear swings over to Takeup Reel.
4A-10. Playback the tape for 1.2 second to adjust add-on recording portion.
4B. REC PAUSE TO REC
4B-1. The Capstan Motor starts rotation in forward direction for playback.
(The video recording will be activated with the Video Delay Rec(H)
signal.)
TIMING CHART 5
ACTION
REV
POSITION
9
8
TIME ms*
100
1.5S
1.5S 400 2.6S 100 600
LOADING
FWD(H)
(PIN 10)
LOADING
5A-1
REV(H)
(PIN 9)
H
CAPSTAN
ON(H)
5A-3
CAPSTAN
R(H)/S(M)/F(L)
L
(PIN 42)
CYLINDER
ON(L)
L
AUDIO
MUTE(H)
(PIN 5)
PB(L)
(PIN 6)
NOTE: 1) PIN NO. WITH BRACKET INDICATES PIN NO. OF IC6001.
2) *:IT SHOWS MAXIMUM TIME.
MODE BY MODE OPERATION
5. REVIEW
5A. PLAY TO REVIEW
5A-1. The Loading Motor starts rotation in a reverse direction.
5A-2. The Loading Motor stops.
At this position, the Pressure Roller and the Tension Arm are released,
5A-3. The Idler Gear swings over to Supply Reel.
5A-4. Proper tape tension is maintained.
5A-5. The Loading Motor stops.
At this position, the Pressure Roller is applied to the Capstan Shaft.
5B. REVIEW TO PLAY
5B-1. The Loading Motor starts rotation in a forward direction.
5B-2. Apply a brake to the Loading Motor.
5B-3. While the Loading Motor is stopped, the Capstan Motor changes
its direction to forward.
5B-4. When the Mode Switch reaches position 9, the Loading Motor stops.
PAUSE RELEASE
6
5
6
7
8
3.2S 2.6S
250
2.6S
100
4A-6
4A-7
4A-3
4A-8
4A-10
4A-5
4A-9
H
M
M
M
L
PLAY
7
6
5
6
7
2.6S
200 300 2.6S
5B-1
5B-2
5A-2
5A-5
5A-4
H
5B-3
TIMING CHART 6
ACTION
9
POSITION
1.2S
1.5S
TIME ms*
LOADING
FWD(H)
(PIN 10)
LOADING
REV(H)
(PIN 9)
CAPSTAN
4B-1
ON(H)
CAPSTAN
M
R(H)/S(M)/F(L)
L
L
(PIN 42)
CYLINDER
ON(L)
FF/REW(L)
NOTE: 1) PIN NO. WITH BRACKET INDICATES PIN NO. OF IC6001.
2) *:IT SHOWS MAXIMUM TIME.
MODE BY MODE OPERATION
6. STOP TO FF/REW
6-1. The Cylinder Motor starts rotation.
6-2. Loading Motor starts rotation in a forward direction after Cylinder Motor
rotation is stabilized.
6-3. When the Mode Switch reaches position A, the Loading Rev(H) signal
goes HIGH to apply a brake to the Loading Motor.
Then the Loading Motor stops quickly.
6-4. The Capstan Motor starts rotation for FF/REW.
During FF/REW, the Cylinder keeps rotation to prevent a tape damage.
TIMING CHART 7
ACTION
8
9
POSITION
100
1S
2S
TIME ms*
LOADING
FWD(H)
5B-4
(PIN 10)
LOADING
REV(H)
(PIN 9)
CAPSTAN
ON(H)
CAPSTAN
R(H)/S(M)/F(L)
L
(PIN 42)
CYLINDER
ON(L)
FF/REW(L)
NOTE: 1) PIN NO. WITH BRACKET INDICATES PIN NO. OF IC6001.
2) *:IT SHOWS MAXIMUM TIME.
MODE BY MODE OPERATION
7. FF/REW TO STOP
7-1. (Without 0 search function:) Apply a brake to the Capstan Motor for
quick stop.
(With 0 search function:) Tape forward or rewind to approximate 0 count
position then apply a brake to stop.
7-2. The Loading Motor starts rotation in a reverse direction.
7-3. Apply a brake to the Loading Motor.
7-4. For rewind to stop operation, the Idler Gear swings over to the
Takeup Reel.
7-5. (With 0 search function:) Forward to precise 0 count position within 5
seconds and stop.
(Without 0 search function:) Takeup tape slack for 200ms.
FF/REW
7
8/9
2S
3.5S
100
6-2
6-3
6-4
H (REW)
M
L (FF)
6-1
STOP
9
8
100
500
3.5S
5S
7-3
7-3
7-2
REW
7-1
7-5
FF
H (FF)
7-4
M
L (REW)
L
A
400
200
7
3.5S
100
10
7-3
M

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