Download Print this page

Sanyo FXD-780GDSS Service Manual page 7

Full panel detachable high power fm/am stereo receiver compact disc player
Hide thumbs

Advertisement

ALIGNMENT OF AM RF & lF SECTION
Set the radio for AM reception. AM signal generator should be coupled with antenna receptacle through dummy.
Set VOLUME control to maximum and TONE to center. Attenuate signal generator output to maintain 0.5 watts (1.4 volts across
4 ohms load) on AC voltmeter.
AM SG
STEREO SG
GENERATOR
STEP
FREQUENCY
1
Non-Mod.
2
Non-Mod.
3
1000kHz,
999kHz
400Hz
30% MOD
SG att: 20dBµ EMF
4
1000kHz,
999kHz
400Hz
30% MOD
SG att: 30dBµ EMF
* Setting up TEST MODE at page 7.
ELECTRICAL ADJUSTMENTS
VTVM
*1
AM
DUMMY
&
ANTENNA
*1 Refer to "DUMMY BOX SCHEMATIC" (Page 10) Fig.11-1
*2 Refer to "DUMMY BOX SCHEMATIC" (Page 10) Fig.11-3
RADIO DIAL
SETTING
INDICATOR
530kHz
DC VTVM to test
531kHz
point
1710kHz
DC VTVM to test
1602kHz
point
1000kHz
AC VTVM across
999kHz
speaker(L or R) or 4
ohms load
1000kHz
Adjust so that the
999kHz
"ST" mark of LCD
TEST MODE*
Display appears
T.P
SET
SW BOX
Fig. 5
* SG frequency should be as accurate as possible.
OUTPUT
ADJUST-
MENT
VT
VT
L108
AM IFT1
L111
AM IFT2
R124
AM SD
— 5 —
DISTORTION METER
AC VOLTMETER
*2
DUMMY
LOAD &
REMARKS
Check the voltage over than 2.5V.
Check the voltage less than 7.5V.
Adjust for Maximum output Level.
Sensitivity of the seeking fre-
quency.

Hide quick links:

Advertisement

loading

  Related Manuals for Sanyo FXD-780GDSS

This manual is also suitable for:

Fxd-780rdsFxd-780rdsxeFxd-780gdbk.ssFxd-780gd