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TUNER ADJUSTMENTS(US,CA)
• Use a plastic screw driver for adjustments.
• MODE : STEREO
• Speaker impedance : 8 Ω
• TUNING
FM : 87.9MHz - 107.9MHz(200kHz step)
AM : 520kHz - 1710kHz(10kHz step)
C2130
(E)
FM SG IN
J2105
75 OHM
(H)
XF211
AM
J2006
LOOP ANT
C2131
1 . F M
S t e p
Adjusting
Circuit
1
IF Alignment
SG=66dBµV
2
Cover
voltage
3
Tracking
Connect FM SG to FM Antenna
(SG=8dBµV)
2 . A M
S t e p
Adjusting
Circuit
1
Cover
voltage
2
Tracking
Connect AM SG to
Test loop Ant.(SG=80dBµV)
L2102
R2114
J2004
C2117
C2102
R2112
C2107
C2111
C2126
R2106
C2104
J2013
C2123
1
C2121
IC211
C2310
C2103
R2111 C2112
J2008
J2003
R2101
J2002
J2001
R2153
L2151
C2152
C2113
J2101
R2151
J2102
J2110
TP2
<GND>
TP1<VT>
TP12
TP11
(GND)
(VT)
SG RF Level : 75Ω open Voltage dBµV
Antenna
Dev.
Output Level : about 100mV at TP13,TP14,TP15
Connection
I n p u t
O u t p u t
FM ANT.
IC231 3,22pin
TP24, TP25
---
Connect Digital DC voltmeter
to TP11(H), TP12(E).
---
Connect to VTVM
TP13(L) or TP14(R), TP15(E)
Connection
I n p u t
O u t p u t
---
Connect Digital DC voltmeter
toTP11(H), TP12(E).
---
Connect to VTVM
TP13(L) or TP14(R), TP15(E).
C2314
R2458
J2038
J2039
J2134
C2322
R2459
C2464
J2133
IC241
C2311
J2115
Q2451
IC241
E
LC72121
C2317
C2452
C2318
C2308
R2309
C2456
LA1844
IC231
C2302
R2305
C2330
R2304
C2328
XF231
J2016
C2306
0V ALIGNMENT
: 75Ω unbalanced Direct, Modulation
: ±22.5kHz(MONO) ±22.5kHz(STEREO) ±6.75kHz(PILOT)
S G
Frequency
98.1MHz
87.9MHz
107.9MHz
90.1MHz
106.1MHz
S G
Frequency
520kHz
1710 kHz
600kHz
1400kHz
- 13 -
CN241
R2460
C2462
C2463
C2453
J2132
DI
C2461
J2131
CLK
J2130
CE
DO
J2230
J2140
L2451
J2242
J2241
J2011
J2012
RCH
R2812
R2712
LCH
C2327
L2503
: 1 kHz
S e t
Adjustment
Position
---
XF233
Low
L2102
High
Low
L2101
High
S e t
Adjustment
Position
Low
---
High
---
Low
L2151-a
High
D2451
Remark
0.0 ± 0.05V
Alignment voltage of
87.9MHz is 1.1 ± 0.1V.
Confirm voltage of
107.9MHz is <9.0V.
Max.
Remark
more than 0.8V
less than 9.0V
Max.
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