4
D-NS707F
2. Operation when the Service Mode is set.
When the Service Mode becomes active, following messages are
displayed onthe remote control LCD.
1) Turn off the power.
2) Open the solder land TAP824 (TEST) on the MAIN board.
Note :
The solder should be removed clean.
3. How to set the Tuner Service Mode.
To set the tuner Service Mode, the following method is available.
1) Confirm the set is not powered on.
2) Connect a external switch between TJ80 (Tu Test) and TJ81
(Gnd).
SERVICE MODE
The following confirmation can be performed when the Service
Mode is set.
1. How to set the CD Service Mode.
To set the Service Mode, the following method is available.
1) Confirm the set is not powered on.
2) Confirm the following settings.
OPEN/CLOSE detect switch (S820) ................. OFF
Solder Land (TAP833) ...................................... OPEN
[HOLD]
switch (S803) ........................................ OFF
3) Short the solder land TAP824 (TEST) on the MAIN board.
4) Turn on the main power.
S820
TAP824
TAP833
MAIN BOARD(SIDE A)
IC601
yg
S803
TP746
TP538
MAIN BOARD(SIDE B)
VS010B:
Microcomputer
version display
3) Slide the switch to connect TJ80 and TJ81 to be shorted.
4) Short the solder land TAP824 (Test).
5) Turn on the main power.
4. Operation when Tuner Service Mode is set.
When the tuner Service Mode becomes active, following the below
procedure.
1) CD microcomputer version display VS010B .
2) Press play key.
3) Display panel show all segments turn on.
4) Then show DTS microcontroller version: 00008
5) Slide the switch to oposite direction to open the connection of
TJ80(Tu test) and TJ81(Gnd).
6) Tuner mode turned on and display panel show :
FM
87.50 MHz
7) After checking complete, turn of the power.
8) Open solder land TAP824 (Test) and remove the external switch.
Note :
The solder should be removed clean.
TJ81
(Gnd)
TJ80
(TU Test)
