Sanyo DC-DA70, Service Manual

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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 : 1kHz
Standard Input : 60dB Deviation : ±22.5kHz (Mono)
I t e m F r e q u e n c y A l i g n m e n t P a r t s 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%
I t e m F r e q u e n c y A l i g n m e n t P a r t s 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