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12
3
1
23
4
5
6
A
B
C
D
E
F
A
B
C
D
E
F
DVDA
2
CEQ
P
250
DVDB
3
DVDC
4
DVDD
5
AGN
D
1
OSP
252
OSN
253
DVDRFI
P
6
DVDRFI
N
7
MA
8
MB
9
MC
10
MD
11
SA
12
SB
13
SC
14
SD
15
CDF
O
N
16
CDF
O
P
17
TN
I
18
TPI
19
MDI
1
20
MDI
2
21
LDO2
22
LDO1
23
AVDD3
256
V2
RE
FO
28
SG
N
D
27
VRE
FO
30
V2
0
29
TEO
32
FE
O
31
US
B_
VS
S
43
R
FLV
L/
R
FO
N
26
CS
O/
RF
OP
25
TEZ
IS
LV
33
OP
_OUT
34
OP
_I
NN
35
OP
_I
NP
36
FOO
42
TR
O
41
US
BM
45
TR
O
PEN
PW
M
39
PW
MOUT
1/
V_
A
DI
N9
40
US
B_
VDD3
46
FM
O
38
DMO
37
H
IGH
A0
59
HIGHA1
75
HIGHA2
74
HIGHA3
72
HIGHA4
71
HIGHA5
70
HIGHA6
69
HIGHA7
68
DVDD1
8
52
AD7
91
DVS
S
62
AP
LL
C
AP
63
AD5
87
AD4
86
A
PLLV
SS
64
APLL
VDD3
65
AD3
84
AD2
83
AD1
82
AD0
81
DVDD3
73
IOA0
93
IO
A
2
53
IO
A
3
54
IO
A
4
55
IO
A
5
56
DVDD3
80
IO
A
6
57
IO
A
7
58
A16
67
A17
92
DVSS
85
IO
A
18
60
IO
A
19
61
IOA20
76
IOA1
78
ALE
90
IOOE
79
IOWR
66
IOCS
77
DVSS
94
UWR
95
URD
96
DVDD18
97
UP1_2
98
UP1_3
99
UP1_4
100
UP1_5
101
UP1_6
102
UP1_7
103
UP3_0
104
UP3_1
105
DVSS
116
UP3_4
106
UP3_5
107
RFVDD3
244
RFRP
DC
245
DVDD3
108
ICE
109
PRST
110
IR
111
INT0
112
DVDD18
122
DQM0
113
DQS0
114
RD7
115
RD6
117
RD5
118
RD4
120
DVSS
119
RD3
121
RD2
123
RD1
124
RD0
125
RD15
126
RD14
128
DVDD3
127
RD1
3
129
YUV0
/C
IN
192
FS
191
VRE
F
190
DA
CVDDC
189
RD1
6
188
RD1
7
187
RD1
8
186
RD1
9
185
RD2
0
184
RD2
1
183
DVDD3
182
RD2
2
181
RD2
3
180
DQM2
179
DQM3
178
RD2
4
177
RD2
5
176
DVS
S
175
RD2
6
174
DVDD1
8
173
RD2
7
172
RD2
8
171
RD2
9
170
RD3
0
169
DVDD3
167
R
D
31/A
SD
A
TA
5
168
RA
4
166
RA
5
165
RA
6
164
DVS
S
163
RA
7
162
DVS
S
161
RA
8
160
RA
9
159
RA
11
158
RCL
K
156
CK
E
157
DVDD3
155
RCL
K
B
154
RVRE
F/
V_
A
D
IN
3
153
DVDD1
8
152
RA
3
151
RA
2
150
DVS
S
148
RA
1
149
RA
0
147
RA
10
146
BA
1
145
DVS
S
144
BA
0
143
DVDD3
141
RCS
142
RA
S
140
CA
S
139
RW
E
138
DQM1
137
DQS
1
136
DVS
S
134
RD8
135
RD9
133
RD1
0
132
RD1
1
131
DR1
2
130
RFGND
249
IRE
F
255
SVDD3
24
RFG
C
254
JITFN
231
JITFO
230
LPFOP
238
LPFIN
237
CRTPL
P
248
HRFZ
C
247
LPFIP
236
CEQ
N
251
RFRP
AC
246
S_VR
EFN
243
ADCVSS
241
S_VR
EFP
242
S_VC
M
240
ADCVDD3
239
PLL
VDD3
234
LPFON
235
PLLVSS
232
MC_DAT
A
224
SPDIF
225
ASDATA4
222
DVDD18
221
ASDATA3
220
ASDATA2
219
RFGND18
226
ASDATA1
218
ASDATA0
217
ACL
K
215
AL
RCK
213
ABCK
214
DVDD3
204
SPBC
K/A
SDATA5
211
SPLRC
K
210
SPDATA
209
SPMC
LK
208
DVDD3
212
HSYNC/V_ADIN2
207
YUV7/ASDAT
A5
206
VSYNC/V_ADIN1
205
YUV6/R
203
YUV5/B
202
DACVSSA
201
YUV4/G
200
DACVDDA
199
YUV3/C
VBS
198
DACVSSB
197
YUV2/C
196
DACVDDB
195
YUV1/Y
194
DACVSSC
193
ID
AC
EXLP
233
US
BP
44
FG
/V
_A
DI
N8
47
TD
I/V
_A
D
IN
4
48
TM
S/
V
_A
D
IN
5
49
TC
K/
V
_AD
IN
6
50
TDO/
V_
A
DI
N7
51
AD6
88
IOA21/V_ADIN0
89
DVSS
216
DVSS
223
XTAL
O
228
XTAL
I
229
RFVDD18
227
U201
M
T
1389
C
201
1u
F
C
202
1u
F
C
203
1u
F
C
204
1u
F
C
205
D
N
S
C
206
120p
C
B
A
D
RF
O
R
201
0R
R
202
0R
R
203
0R
R
204
0R
C B A D SU
B
A
SU
B
B
SU
B
C
SU
B
D
E F
MDI
1
MDI
2
LDO2 LDO1
RF
OP
RF
ON
V2
P8
V2
0
V1
P4
FE
O
TEO TEZ
IS
LV
OP
O
OP
-
OP
+ DMO FM
O
TR
O
PEN
C
207
104
R207
R206
R205
C
209
C
208
TR
O
FOO
L201 FB
89V
33
US
BVDD
AD
IN
TR
OUT
TR
IN
STB
Y
TRCL
OS
E
V1
8
A2 A3 A4 A5 A6 A7 A8 A1
8
A1
9
C
214
104
C
215
1500p
F
R
212
0R
R
210
18K
R
211
20K
C
213
330p
F
C
212
330p
F
C
211
104
1
2
C
210
153p
F
R
209
15K
R
208
10K
DMS
O
FM
SO
TR
SO
FOS
O
V1
P4
V1
P4
AD
IN
L202 33R
89V
33
PWR#
A16
A15
A14
A13
A12
A11
A10
A9
A20
PCE#
A1
PRD#
AD0
AD1
AD2
AD3
AD4
AD5
AD6
A21
AD7
A17
A0
V18
VSCK
VSDA
VSTB
SCL
SDA
RXD
TXD
URST
#
IR
DQM0
DQS0
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
DQ15
DQ14
R
213
1K
DQ9 DQ1
0
DQ1
1
DQ1
2
DQ1
3
DQ8
RA
S#
CA
S#
WE
#
DQM1 LI
M
IT
CS
#
BA
0
BA
1
DMA
10
DMA
0
DMA
1
DMA
2
DMA
3
DCL
K
B
DMA
9
DMA
11
DCK
E
DCL
K
DMA
8
DMA
7
DMA
6
DMA
5
DMA
4
DQ3
1
DQ2
8
DQ2
9
DQ3
0
RDS
_DA
TA
RDS
_CL
K
RDS
C
E
RDS
ID
DA
VNI
N
RDS
SYNC
TUNE
R_
ON
OB1
DT
S_
DO
DT
S_
CL
DT
S_
DI
DT
S_
CE
OA
1
R
214
1.8K
C
216
Y0
FS
89V
33
V1
8
L203 FB
DA
CVDD3
DV3
3
C
217
104
TC
201
10u
F/
16V
Y1
D
V
33A
Y2
Y3
Y4
Y5
Y6
VS
YNC#
HS
YNC#
RG
B_
SW
IT
CH
FS1
FS0
R
215
1K
AL
RCK
ABCK
ACL
K
R
216
(DNS
)
R
217
(DNS
)
R
218
(DNS
)
R
219
(DNS
)
ASDAT0
ASDAT1
ASDAT2
MU
TE_D
AC
V18
R
220
(DNS
)
RESE
T#
ASPDIF
RFV
18
XI
XO
JITFO
JITFN
C218
0.47uF
TC
202
10u
F/
16V
PLL
VDD3
C219
0.047uF
C220
0.047uF
C221
1uF
ADCVDD3
RFVDD3
VRE
FN
VRE
FP
C
222 20p
F
C
223
1000p
F
R224
100K
C224
104
C225
0.033uF
C226
104
C227
104
C228
104
R
223
15K
C
229
104
V1
P4
A
VDD3
89V33
C
233
100p
F
R
227
750K
JI
TF
N
JI
TF
O
L205 FB
L206
4.7R
L207
FB
L208 FB
L250
FB
C
234
104
C
235
104
C
236
104
C
237
104
RF
V3
3
PL
LVDD3
A
D
CVDD3
RFVDD3
RFS
VDD3
C
238
104
C
239
104
C
240
1u
F
VRE
FN
V
RE
FP
C
243
104
TC
204
47u
F/
16V
C
242
104
TC
205
47u
F/
16V
C
241
104
TC
206
47u
F/
16V
C
250
104
C
251
104
C
252
104
C
244
104
C
245
104
C
246
104
C
247
104
C
249
104
C
248
104
C
253
104
C
254
104
C
256
104
C
257
104
C
258
104
V1
8
L235
FB
L236
FB
A
VDD3
DV3
3
2
3
4
1
5
6
8
9
10
7
11
12
14
15
16
13
17
18
20
21
22
19
23
24
X
S301
24P
0.5m
m
C
312
104
L318
FB
SM
T
L316
FB
SM
T
L312
FB
SM
T
L314
FB
SM
T
L311
FB
SM
T
L310
FB
SM
T
L308
FB
SM
T
L307
FB
SM
T
L306
10u
H
L305
FB
SM
T
L304
FB
SM
T
L303
10u
H
L319
FB
SM
T
L320
FB
SM
T
L321
FB
SM
T
L322
FB
SM
T
L323
FB
SM
T
L324
FB
SM
T
C
301
104
TC
301
220u
F/
16V
C
311
104
AV
C
C
E
A
V
301
2S
B
1132-
S
V
302
2S
B
1132-
S
R
301
10R
R
302
10R
TC
302
47u
F/
16V
TC
303
47u
F/
16V
LDO-A
V3
3
LDO-A
V3
3
LDO2
LDO1
R
303
0R
L301
FB
SM
T
MDI
1
F
L317
FB
SM
T
B
RF
O
IO
A
D C
V2
0
R
309
10K
R
308
100K
R
311
10K
R
310
100K
V
303
2S
K
3018-
S
V
304
2S
K
3018-
S
V
305
3904-
S
IO
A
AV
C
C
L234
FB
C
230
104
V1
8
RF
V1
8
R
315
20K
R314
10K
R
316
20K
C
306
151
C
305
104
C
302
104
C
303
104
TC
304
47u
F/
16V
R
306
1R
R
307
1R
R
312
20K
R
305
1R
R
304
1R
C
304
151
VI
NFC
1
CF
1
2
CF
2
3
VI
NS
L+
4
VI
NS
L-
5
VOS
L
6
VI
NFFC
7
GND
30
VCC
8
PV
CC1
9
PG
N
D
10
VOS
L-
11
VO2
+
12
VOFC-
13
VOFC+
14
VOT
K
+
15
VOT
K
-
16
VOL
D+
17
VOL
D-
18
PG
N
D
19
VNFT
K
20
PV
CC2
21
GND
29
PR
EG
N
D
22
VI
NL
D
23
CT
K
2
24
CT
K
1
25
VI
NT
K
26
BI
A
S
27
STB
Y
28
U
302
B
A
5954
TR
SO
V1
P4
STB
Y
SL
+
SL
-
FM
SO
MO_
V
CC
GN
D
MO_
V
CC
SP- SP+
V1
P4
FOS
O
DMS
O
L302 FB
VCC
R
313
10K
R
325
470R
R
327
470R
R
321
1R
R
320
150K
R
319
150K
R
322
680K
R
317
680K
R
318
0R
C
307
2200p
F
AD
IN
OP
-
OP
+
V1
P4
SP-
OP
O
C
308
DNS
V
308
8050
V
307
8050
V
306
8550
V
309
8550
R
323
1.5K
R
324
1.5K
R
339
10K
R
326
2.2R
\1/4W
TC
308
47u
F/
16V
TC
309
47u
F/
16V
LO
A
D
+
LO
A
D
-
TRCL
OS
E
V
310
9014-
S
TR
O
PEN
(TR
C
LO
SE1
)
(TR
O
PEN
1)
(T
RCL
OS
E1
)
TR
O
PEN
2 3 4
1
5
X
S302
5P
2.0m
m
LO
A
D
-
LO
A
D
+
TR
OUT
TR
IN
C
309
104
SP+
SL
+
SL
-
LI
M
IT
2 3 4
1
5 6
X
S303
XS
06
L309
FB
DV3
3
R
228
0R
TD
I
TM
S
TC
K
TD
O
R
2202
10K
DV3
3
C
231
104
TC
211
220u
F/
16V
L238
FB
DV3
3
R
340
1R
C
310
2200p
F
R
329
10K
R
330
10K
DV3
3
RFS
VDD3
R
331
0R
DQS
0
R
297
0R
R
298
0R
R
299
0R
PW
R
#
PC
E#
PR
D
#
DW
R#
DCE
#
DRD#
AMDAT
R
2201
0R
R
2200
0R
C
2167
104
C
2174
104
TC
247
22u
F/
16V
C
2175
104
TC
248
47u
F/
16V
A_
M
U
TE
VCC
R
229
0R
VOI
CE
-DE
T
MIAN SCHEMATIC DIAGRAM
34
Summary of Contents for DT9904S
Page 1: ...SERVICE MANUAL DT9904S...
Page 4: ...3 7 9 2...
Page 12: ...7 MPEG BOARD CHECK WAVEFORM 7 1 27MHz WAVEFORM DIAGRAM 7 2 IC5L0380R PIN 2 WAVEFORM DIAGRAM 10...
Page 29: ...FRONT SCHEMATIC DIAGRAM 27...
Page 31: ...POWER BOARD SCHEMATIC DIAGRAM 29...
Page 33: ...OK SCHEMATIC DIAGRAM 31...
Page 35: ...OUTPUT BOARD SCHEMATIC DIAGRAM 33...
Page 40: ...MIAN SCHEMATIC DIAGRAM 38...
Page 47: ...11 APPENDIX AM FM Tuner Specificadtion 45...
Page 48: ...46...
Page 49: ...47...
Page 50: ...48...
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Page 52: ...50...
Page 53: ...51...
Page 54: ...52...
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