- 13 -
• 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)
SG RF Level : 75
Ω
open Voltage dB
µ
V
Antenna
: 75
Ω
unbalanced Direct, Modulation : 1 kHz
Dev.
:
±
22.5kHz(MONO)
±
22.5kHz(STEREO)
±
6.75kHz(PILOT)
Output Level : about 100mV at TP13,TP14,TP15
TUNER ADJUSTMENTS(US,CA)
1
T002 94V-0
1AD4B10D1140B
E
J2102
J2202
J2101
J2003
J2105
C2122
D2151
L2151
R2101
XF221
<GND>
C2113
J2204
J2203
J2103
J2001
J2002
D2102
D2101
C2104
XF211
D2104
D2103
IC211
L2102
L2101
L2103
J2008
J2005
J2004
R2113
J2104
CN201
J2006
J2007
CN202
TP2
TP1<VT>
(FROM CN499)
CN241
+12V
5.6V
TU_R
A_GND
TU_L
TU_DO
TU_CE
TU_DATA
TU_CLK
RDS
DIST
D2451
J2242
J2241
J2140
C2311
C2313
XF233
C2303
XF222
J2010
C2302
C2317
R2309
R2302
C2301
XF231
IC231
C2321
C2328
C2327
C2305
RCH
LCH
LA1844
C2307
J2113
J2110
J2219
J2115
J2114
J2013
J2014
J2216
J2213
J2212
J2111
C2306
J2210
D2301
R2311
R2301
C2901
L2503
J2214
J2215
J2011
J2112
J2015
J2016
J2012
J2116
J2218
J2217
0VADJ
Q2451
J2133
J2232
J2132
J2131
J2130
L2451
J2032
D2452
J2034
J2030
J2031
C2452
J2033
C2457
X2451
IC241
C2451
LC72121
CE
DI
CLK
DO
J2234
J2134
J2039
J2038
J2230
J2233
DIST1
DIST0
DIST2
J2231
R2151
C2152
C2130
R2153
C2151
C2117
R2114
C2123
R2106
C2101
C2103
C2121
R2111
C2112
C2102
C2105
R
2104
R2102
R2103
C2106
C2107
R2112
C2126
C2109
C2108
C2111
C2131
C2132
R2461
R2464
R2462
R2463
C2903
R2304
C2309
R2307
R2306
C2310
C2308
R2308
C2315
C2312
R2305
C2318
C2319
C2304
C2330
C2320
R2303
C2316
C2314
C2902
R2712
R2812
R2459
R2458
C2322
R2455
C2462
C2461
R2452
R2453
C2456
C2455
C2454
C2453
IC241
C2463
C2464
R2454
R2460
FM SG IN
75 OHM
AM
LOOP ANT
(E)
(H)
TP11
(VT)
TP12
(GND)
L2151-a
TP24
(IC231 3PIN)
TP25
(IC231 22PIN)
XF233
0V ALIGNMENT
TP14(RCH)
TP15(G
N
D)
TP13(LCH)
L2102
1 . F M
S t e p
Adjusting
Connection
S G
S e t
Adjustment
Remark
Circuit
I n p u t
O u t p u t
Frequency
Position
1
IF Alignment
FM ANT.
SG=66dBµV
IC231 3,22pin
TP24, TP25
98.1MHz
---
XF233
0.0 ± 0.05V
2
Cover
---
Connect Digital DC voltmeter
87.9MHz
Low
L2102
Alignment voltage of
87.9MHz is 1.1 ± 0.1V.
voltage
---
to TP11(H), TP12(E).
107.9MHz
High
Confirm voltage of
107.9MHz is <9.0V.
3
Tracking
Connect FM SG to FM Antenna
Connect to VTVM
90.1MHz
Low
L2101
Max.
(SG=8dBµV)
TP13(L) or TP14(R), TP15(E)
106.1MHz
High
2 . A M
S t e p
Adjusting
Connection
S G
S e t
Adjustment
Remark
Circuit
I n p u t
O u t p u t
Frequency
Position
1
Cover
---
Connect Digital DC voltmeter
520kHz
Low
---
more than 0.8V
voltage
---
toTP11(H), TP12(E).
1710 kHz
High
---
less than 9.0V
2
Tracking
Connect AM SG to
Connect to VTVM
600kHz
Low
L2151-a
Max.
Test loop Ant.(SG=80dBµV)
TP13(L) or TP14(R), TP15(E).
1400kHz
High