Service manual

HT-DD5000/C
– 27 –
Figure 27 SCHEMATIC DIAGRAM (12/12)
7
8 9 10 11 12
C246
0.0039
R226
4.7K
R225
1.8K
R250
5.6K
CF202
R251 22K
C233
1/50
R221
3.3K
C234
0.22/50
C245
1/50
R253
68K
C247
0.1
C244
56P
C243 1/50
C240
0.1
R222
1K
C248
0.0047
C254 0.018
J202 15K
R217
22K
C242
10/16
R223 470K
C239 10/16
C241 680P
C250
0.001
F
201
R216
4.7K
R215
100K
C223
470P
2
2
3F
C220 0.022
R211
100K
R245 5.6K
R243
5.6K
C268
47/16
R241
330
ZD201 MTZJ5.1B
C272 0.022
C236
0.022
C237 3.3/50
C235 0.022
L205
1mH
C226
33P
R224 8.2K
C225
0.022
C238 0.022
R229
2.7K
R230
2.7K
C253
0.018
C273
100/10
L204
100µH
R244
330
R247
270
R246
270
R237
5.6K
R248
1K
C229 0.022
R219 1K
Q203
KTA1266 GR
R242
5.6K
R249
47K
L203
100µH
0.022
C260
1/50
C274
0.022
C271
220/16
C266
330P
Q202
KRC104 M
C255
0.022
C265
0.01
R231
10K
C263
0.022
R218
5.6K
R228
3.9K
C252
1/50
R236 10K
IC203
LA1833 FM/AM IF MPX.
C231
22P
C232
0.001
C275
100/10
C276 0.022
R220 270
C230
0.022
CF203
C228
0.1
13
14
151617
1819
20
21
222324
9
10 11
12
8
7
6
5
4
3
2
1
9
10 11
12 13 14
5
8
VR201
10K(B)
T204
C249
10/16
C251
1/50
R227
3.9K
CNS201
9
10
11
12
8
7
6
5
4
3
2
1
NC
FM
OUT
AM
OUT
SD
AM
OSC IN
VSM
IF OUT
VCC
REQ
TP301
T
P302
IF IN
IO1 BO4 FM
AM
OSC OUT
AM RF
IN
M IF
AM MIX AM /FM
FM
AFC
FM DET
FM IF IN
GND
STEREO
PHASE
L CH
R CH
MPX
-IN
2.5V
2.6V
0V 0V
3.5V 4.96V
2.1V
1V
0V
3.1V 1.8V
1.8V
2.1V
2.1V
2.1V
2.1V
4.9V
2.1V
2.1V
0V
5V
4.87V
0V
3.5V
4.96V
2.96V
AM,FM:2.1V FM ST:3.9V
0V
AM,FM:0V FM ST:4.6V
0V
12.5V
12.5V
(11.7V)
OTER'AM 0V
( )'FM,ST (11.75V)
FM
MUTE LEVEL
AM IF
1
2
3
1
2
3
MUTING
TUN2DO
TUN2CK
TUN2ST
TUN2SD
A2GND
TUN2DI
TUN2CE
TUN2L
TUN2R
A+12V
P17 7 - A
TO MAIN PWB
CNP201
+B
IO2
BO2
TUN2MUTE
2.1V
D2GND