Sanyo DC-DA70 - Tuner Adjustment Procedures

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TUNER ADJUSTMENTS
• Use a plastic screw driver for adjustments.
• MODE : ST (Stereo)
• Speaker impedance : 6 ohm
• TUNING
FM : 87.5 - 108.0MHz
AM : 522 - 1710KHz
SG RF Level : 75 open Voltage dBµV
Antenna : 75 unbalanced , Modulation : 1 kHz
Dev. : ±22.5kHz(MONO) 22.5kHz(STEREO) ±6.75kHz(PILOT)
FM Ant.：75ΩunbalancedModulationfrequency:1kH
z
StandardInput:60dBDeviation:±22.5kHz(Mono)
Item Frequency Alignment Parts Remark
IF(0V)Alignment 98MHzINPUTLEVEL AlignmentVoltage CheckVoltage
FMANTSG=66dBμV IC2113,22pin(TP22,TP23) T2002 IC2113,22pin(TP22,TP23)
is0.0±0.05V is0.0±0.05V
Cover(Voltage)Alignment Low 87.5MHZ 1.00±0.5V(CheckOnly) L2002 CheckOnly
High 108.0MHZ 6.20±0.1V --- CheckOnly
Tracking(Voltage)Alignment Low 90.0MHZ Maximum --- ConfirmS/N=30dB
High 106.0MHZ ---
AM Ant.：IRELOOPANT
Modulationfrequency:1kHz
Modulation:30%
Item Frequency Alignment Parts Remark
IFAlignment
450kHz(at999kHz) Maximum T2001
OR
XF215 SymmetricalWaveForm
Cover(Voltage)Alignment Low 522kHz 1.0±0.05V L2205
High 1710kHz 7.95±0.8V(Checkonly) --- AFMaximum
Tracking(Voltage)Alignment Low 603kHz Maximum L2204
High 1404kHz CT211 AFMaximum
CT211
L2204
L2205
T2001
VT TEST
J2403
T2002
TP22
J2409
TP23
L2101