1-5-1
TD900PFS
PREPARATION FOR SERVICING
How to Enter the Service Mode
Caution: 1
1. Optical sensors system are used for Tape Start and
End Sensor on this equipment. Read this page
carefully and prepare as described on this page
before starting to service; otherwise, the unit may
operate unexpectedly.
Preparing: 1
1. Cover Q202 (START SENSOR) and Q201 (END
SENSOR) with Insulation Tape or enter the service
mode to activate Sensor Inhibition automatically.
Note: Avoid playing, rewinding or fast forwarding the
tape to its beginning or end, because both Tape End
Sensors are not active.
How to Enter the Service Mode
1. Turn power on.
2. Use service remote control unit and press DISC
MENU key. (See page 1-8-1)
3. When entering the service mode, one of the num-
ber (1, 2 or 4) will display at corners of the screen.
4. During the service mode, electrical adjustment
mode can be selected by remote control key. (Ser-
vice remote control unit).
Details are as follows.
Caution: 2
1. The deck mechanism assembly is mounted on the
Main CBA directly, and SW1211 (REC-SAFETY
SW) is mounted on the Main CBA. When deck
mechanism assembly is removed from the Main
CBA due to servicing, this switch can not be oper-
ated automatically.
Preparing: 2
1. To eject the tape, press the STOP/EJECT button
on the unit (or Remote Control).
2. When you want to record during the Service mode,
press the Rec button while depressing SW1211
(REC-SAFETY SW) on the Main CBA.
Key
Adjustment Mode
MENU
Picture adjustment mode: Press the
MENU button to change from BRT
(Bright), *CNT (Contrast), *COL
(Color), *TNT(Tint) and *V-T. Press
CH UP/DOWN key to display Initial
Value. *Marked items are not neces-
sary to adjust normally.
0
No need to use.
1
No need to use.
2
H adjustment mode: See adjustment
instructions page 1-8-2.
3
No need to use.
4
Auto record mode: Perform recording
(15 Sec.)-->Stop-->Rewind (Zero
return) automatically.
5
Head switching point adjustment
mode: See adjustment instructions
page 1-8-5.
6
No need to use.
7
Purity check mode: Shows Red,
Green, Blue or White cyclically on the
screen each time the “7” key is
pressed.
Key
Adjustment Mode
8
H. Shift adjustment mode: See adjust-
ment instructions page 1-8-3.
9
V.size/V. shift adjustment: See adjust-
ment instructions page 1-8-3.
VOL
p
Cut-off Adjustment 1-8-3.
(START SENSOR)
(END SENSOR)
(REC-SAFETY SW)
MAIN CBA
Q201
SW1211
Q202
Summary of Contents for EC720E
Page 2: ...EC720E T1008UJ 2004 06 22 ...
Page 22: ...1 7 4 TD900DC S 4 S 4 S 4 S 4 4 CRT Anode Cap CRT CBA Fig 3 ...
Page 93: ...2 4 8 TD951DA Fig DM16 41 42 43 L 13 44 45 P 9 Slide Fig DM17 ...
Page 97: ...3 1 3 TD900PEX S4 S1 X1 TAPE X5 X4 X2 X3 S3 S6 S7 S2 PACKING TAPE Packing ...
Page 119: ...Printed in Japan 2003 08 25 HO 6720FDD TD900UA ...
