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PREPARATION FOR SERVICING
How to Use U17 Deck Extension
Cable
(1) Remove the Deck Mechanism Assembly.
If
needed, remove the Main CBA from the chassis.
Refer to "Cabinet Disassembly Instructions" on
page 1-6-1.
(2) Connect Main CBA and Deck with the U17 Deck
Extension Cable (A) as shown in Fig. 1. And con-
nect Main CBA and Deck with U17 Deck Exten-
sion Cable (B) as shown in Fig. 1. Connect 2
Clips on U17 Deck Extension Cable (B) to Shield
on Main CBA.
(U17 Deck Extension Cable: 7069201)
U17 Deck
~
Extension Cable (A). |
CN1008 (for 2 Head) —.
[VT-MX231A, VT-MX231AC,
VT-MX231 AW]
i
CN1010 (for 4 Head)
|
[VT-MX431A, VT-MX231AC]
CN1003
CN1001
——~o ss
fut 7 Deck Extension Cable
Note 1: There are 3 types of
U17 Deck Extension Cable
(A). They are for 2 Head, 4 Head, and Hi-Fi.
Use a
connector indicated as shown.
Be careful not to let the
unused connector contact other parts.
Note 2:
Some noise will be present in the playback
picture when the extension cable is used.
|
Service Part No.
|
7069201
U17 Deck
Extension Cable (B}
How to Enter the Service Mode
Note:
When the unit is set in the service mode, the
display will keep blinking.
About Optical Sensors
Caution:
An optical sensor system is used for the Tape Start and
End Sensors on this equipment.
Carefully read and
follow the instructions below.
Otherwise the unit may
operate erratically.
What to do for preparation
Insert a tape into the Deck Mechanism Assembly and
press the PLAY button. The tape will be loaded into the
Deck Mechanism Assembly.
Make sure the power is
on, connect TP502 (SENSOR
INHIBITION) to TP501
(GROUND).
This will stop the function of Tape Start
Sensor, Tape End Sensor and Reel Sensors. (If these
TPs are connected
before
plugging in the unit, the
function of the sensors will stay valid.) See Fig. 2.
Note:
Because the Tape End Sensors are inactive, do
not run a tape all the way to the start or the end of the
tape to avoid tape damage.
REC-Sat
Caution:
The REC-Safety Switch is directly mounted on the Main
CBA. When the Deck Mechanism Assembly is removed
from the Main CBA for servicing, this switch does not
work automatically.
What to do for preparation
In order to record, press the Rec button while pushing
REC-SAFETY SW on the Main CBA. See Fig. 2.
ow
L
chads
igaees
&7 CN501
Q503. 0
SW506
1
(=f (REC-SAFETY SW)
1-4-2
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