Sanyo FXD-770GD Service Manual page 9

SETTING UP TEST MODE AT STEP 4 FOR AM & STEP 7 FOR FM
Press the e PWR 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.
VOL
1. While the power is off, press the q PRESET 1 button. Then press the w BAND button and e PWR button simultaneously
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. 5(A).
3. Press the r AUD button once. The display shown in Fig. 5(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. 5(B)'.
4. Press the r AUD button, if the display changes to that shown in Fig. 5(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. 5(D) or (D)' receiving AM 1000 kHz or *(999) kHz.
6. Then press the r AUD button, if the display changes to that shown in Fig. 5(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 AUD button, if the display changes to that shown in Fig. 5(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
PRESET TRACK
CD
L R
FMIII
R F
AMII
LOUD ST LOCBASS MANU TRE
(C) FM Local Mode OK
FMI FM
(B) FM DX Mode
FMI
(B') OK
FMI
ST
ELECTRICAL ADJUSTMENTS
FOR FXD-770GD
REL
LO/DX
LOUD
TUN
TRK
AUD
r q
FRONT
SCAN
SHF
RPT
ST LOC ST LOC
(D) Receiving 1000kHz
AMI
(D') Receiving 999kHz
AMI
FM/AM RECEIVER FXD-770GD 40W X 4
PRESET TRACK
CD
L R
FMIII
FRONT
SCAN
R F
AMII
SHF
LOUD ST LOCBASS MANU TRE RPT
SHF RPT
Fig. 4
(E) AM DX Mode
AMI
(F) AM Local Mode
AMI
ST LOC
Fig. 5
— 7 —
w
BAND
ATP
CD
DISP
PWR
MUTE
e
(E') OK
AMI
ST LOC