Sanyo DC-PT80 Service Manual page 31

SCHEMATIC DIAGRAM (TUNER )
XF211 IC211
LA1186N
1 2 3 1 2 3 4 5 6
R2111
10
C2102
5P
FM_ANT1
C2105
0.01
FM_ANT2
CN201
04
AM_ANT1
FM/AM
TERMINAL
AM_ANT2
C2998
0.1
C2999
0.1
9.0
0
47K
Q2451
KRA104M
47K
R2455
2.2K
C2457
1;50-P
C2456
4.2 0.01
0 0 3.4
2.0 0.8 0.8
24 23 22 21 20 19
XOUT NC VSSA AOUT AIN PD
IC241
LC72121M
XIN VSSX CE DI CLK DO
1 2 3 4 5 6
2.0
0 0.3 0.1 0.2 4.3
0 0.4 0
7 8 9
C2114 R2201
5P [CH] XF221 330
C2111
1000P
R2140 R2148
1K 820K
[1/4W]
Q2450
KTC3199
1.9 0
0 1.9 0 4.7 0
3.2
18 17 16 15 14 13
VDD FMIN AMIN VSSD SD IFIN
FM MONO AM IF_REQ DIST NC
7 8 9 10 11 12
0.6
4.8 0 0
0.9 5.2 0.9
0.9
11.1 5.6
R2459
10K
D2455 1SS133
R2460
27K
FM 98.0MHZ
VOLTAGE= (UNIT:V)
AM 999KHZ
- 34 -
R2204
470K XF222
9.0
2.3
0
0
1.6
Q2201 0
KTC3193
R2202
330
[1/4W]
D2153
L2151
SVC348
MWANT
C2153
82P
[CH]
L2153
C2152
680P MWOSC
[CH]
XF233
T2002
C2306
1;50
XF231
C2322
1000P
C2305 0.47;50
6.2 4.0 5.0
2.1 2.1 2.1 0
6.6 4.7 5.0 5.1 6.3 0 2.3
1 2 3 4 5 6 7 8 9 10 11 12
FM IF AM MIX REG AM IF GND SD ST FM DET VDD MUTE FM/AM MONO
IC231 LA1844ML
OSC BU AM OSC AFC AM RF AGC AM FM MPX IN PILOT RCH LCH
DET OUT DET OUT PLL IN CLL OUT
24 23 22 21 20 19 18 17 16 15 14 13
4.7 6.3 2.1 2.1 0.6 0.5 2.6 2.6 2.1 1.3 1.3 5.3
5.1 0.9 0 0.9 0
C2317
4.7;50
C2307 R2308
39K
10;50
C2308 R2309
0.018 33K
R2464
R2461
R2462
R2463
D2451
1SS133
- 35 -
R2306
2.7K
C2321
1;50
5.0
R2301 [1/4W]
0.7
180
R2311 [1/4W]
180
C2319
0.018
C2320
0.018
R2712
18K
R2812
18K
L2901 CN251
09
270U +9V
+9V
1
+5.6V
5.6V
2
TU-L
TU-L
3
A-GND
A-GND
4
TU-R
TU-R
5
1K TU-DO
TU-DO
6
1K TU-CLK
TU-CLK
7
1K TU-DI
TU-DI
8
1K TU-CE
TU-CE
9
This is a basic schematic diagram.