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Sanyo FXD-780GDSS Service Manual page 9

Full panel detachable high power fm/am stereo receiver compact disc player
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SETTING UP TEST MODE AT STEP 4 FOR AM & STEP 7 FOR FM
Press the e POWER button to turn the power off. Next, use the following procedure with the front panel switches
to set the mode to the test mode shown in Step 4 for AM and Step 7 for FM.
1. While the power is off, press the q PRESET 1 button. Then press the w BAND button and e POWER button simulta-
neously to enable the w BAND button to be used at the moment the power comes on.
2. If the above operation is successful all the figures on the LCD light up, check that you have entered test mode. Fig. 7 (A).
3. Press the r AUDIO button once. The display shown in Fig. 7 (B) appears on the LCD and the unit enters DX mode.
Then, while receiving FM 98.1MHz rotate the Semi-fixed VR R129 on the TUNER UNIT (RF33) to adjust the LCD until the
stereo mark light " ST " is on. Fig. 7 (B)'.
4. Press the r AUDIO button, if the display changes to that shown in Fig. 7 (C) the unit is in Local mode. Check that the " ST " mark
is displayed (for specific: Input level is 12 ~ 28dB higher than that of the DX mode).
5. Press the w BAND button, if the display changes to that shown in Fig. 7 (D) or (D)' receiving AM 1000 kHz or *(999) kHz.
6. Then press the r AUDIO button, if the display changes to that shown in Fig. 7 (E) the unit is in DX mode. Rotate the Semi-
fixed VR R124 on the TUNER UNIT (RF33) to adjust the LCD until " ST " mark lights up.
7. Then press the r AUDIO button, if the display changes to that shown in Fig. 7 (F) the unit is in Local mode. Check that the
" ST " mark is displayed. (for specific: Input level is 12 ~ 28dB higher than that of DX mode).
8. Turn off the power to release the test mode.
TEST MODE CHART
(A) Enter the Test Mode
(C) FM Local Mode OK
(B) FM DX Mode
(B') OK
ELECTRICAL ADJUSTMENTS
FOR FXD-780GD
w
REL
ATP
FM /AM CD RECEIVER
LO/DX
1
2
BAS-X
LOUD
q
(D) Receiving 1000kHz
(D') Receiving 999kHz
FXD-780GD 50W x 4
VOL
SHF
RPT
3
4
5
6
AUDIO
Fig. 6
(E) AM DX Mode
(F) AM Local Mode
Fig. 7
— 7 —
TUN
TUN
TRK
TRK
MUTE
POWER
r
e
(E') OK

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