Panasonic AG-6124 Service Manual page 115

2-2-1, Cassette-Insert Detection
2-3. Safety Circuit
The microprocessor IC6001 detects conditions that
might cause damage
to the tape or mechanism.
When
such
a condition
is detected,
the IC6001_ will
prevent further operation.
2-3-1. Cytinder Lock
2-3-2. Loading & Unloading Mechanism Lock
IC6001
POSITION SW 1 (4)
POSITION SW 2 (3)
POSITION SW3 (2)
SUPPLY REEL
PULSE
TAKE-UP REEL
PULSE
(s)
(2)
TAKE-UP G7)
PHOTO
SAFETY TUB© (1)
NON SW5V
O
—O FG/PG Signals From |C2501
(MODE SW)
i:
3] P1806
ij_I
Af
IC1502 a
(T. REEL SENSOR) (S. REEL SENSOR)
Q1502
(SUPPLY PHOTO TR}
Aa 01501
(SENSOR LED)
ea dr
| ( / ) (TAKE-UP PHOTO TR)
Q1501
To AUDIO
VIDEO
(SAFETY TUB SW)
SW1501
——[ee0% 2 aa
L
(DEW SENSOR)
=
1
"Cs
Fig. SG Safety Circuit