Sanyo DC-PT80 Service Manual page 11

TUNER ADJUSTMENT
1. TUNER ALIGNMENT SPECLIST
POWER SUPPLY VOLTAGE CN:220V,50Hz KR:220V,60Hz ,AU:240V,50Hz SS:115/230V/50/60Hz
FM
STANDARD CONDITION
ANTENNA
MOD. FREQ.
DEVIATION
RF LEVEL
OUTPUTLEVEL
ITEM FREQ.
98.0MHz FM ANT.(H)
IF(0V)
ALIGNMENT
COVER 87.5MHz
VOLTAGE
108.0MHz
TRACKING 90.0MHz
106.0MHz
AUTO STOP 98.0MHz FM ANT.(H)
ST SENS . 98.0MHz FM ANT.(H)
SEPARATION 98.0MHz FM ANT.(H)
AM STANDARD CONDITION
ANTENNA
MODURATION
RF LEVEL
OUTPUT LEVEL
ITEM FREQ.
IF 522kHz
ALIGNMENT
COVER Voltage 522kHz
1611 kHz
TRACKING 603kHz
1404kHz
AUTO STOP 999kHz
: 75ohm UNBALANCED DIRECT
: 1kHz
: MONO ±22.5kHz / STEREO ±22.5kHz(MAIN), ±6.75kHz (PILOT)
: dBµV EMF
: about 100mV at TP13,TP14,TP15
INPUT OUTPUT
IC231
FM ANT.(E) 3 - 22PIN
SG=66dBµV
TP24,25
TP11(H)
TP12(E)
FMANT. TP13(L)
SG 8dBµV TP14(R)
TP15(E)
FM ANT.(E)
FM ANT.(E)
TP13(L)
FM ANT.(E) TP14(R)
SG=66dBµV
TP15(E)
: IRE LOOP(SG) <-- 60cm <--1AV0L90B00500(SET)
: 1kHz,30%
: dB µV EMF
: about 100mV at TP13,TP14,TP15
INPUT OUTPUT
LOOP ANT. IC231
19
PIN_DCCUT
(TP26) GND
TP11(H)
TP12(E)
LOOP ANT TP13(L)
SG 80dB TP14(R)
µV/m TP15(E)
LOOP ANT
ALIGNMENT
Alignme nt Parts is XF233
Alignment Voltage(IC231 3-22PIN) is 0.0±0.05V
CHECK VT voltage of 87.5MHz is about1.3±0.5V .
Confirm voltage of 108.0MHz is about 7.2V.(<8.0V)
Max.
Max.
Max.
Max.
ALIGNMENT
Alignment Parts is T2002
Adjust T2002 to become waveform like this or
output signal max.
Alignment Parts is L2153
Alignment voltage of 522kHz is 1.0V±0.1V.
Confirm voltage of 1611kHz is about 7.1V.(<8.0V)
Alignment Parts is L2151
Adjust L2151 to become output signal max.
Alignment Parts is CT252
Adjust CT252 to become output signal max.
Confirm AUTO STOP SENS.
If AUTO STOP SENS.is bad,readjust T2002,L2151and CT252.
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