Philips PET320 Service Manual page 23

5
AUDIO-DAC_ML
U7 CS4335
AU_D0
1 8
(4) AU_D0
SDATA AOUTL
AU_BCK 2 7
(4) AU_BCK DEM/SCLK VA +5V_AUD
AU_LRCK
3 6
(4) AU_LRCK LRCK AGND GNDA
AU_XCK AUDIO-DAC_MR
4 5
(4) AU_XCK
MCLK AOUTR
D
C242
82P
AGND DAC Interface
+5V_AUD
2
C166 R213
U11C 0.1U/16V 100K
APC558
1
2 2
C161 +
R214 R215
E 47U/6.3V 100K 47K
1 1
GNDA
GNDA
EC8
R218 47K
AUDIO-DAC_ML
1 2
C163 330P
2 1
2.2uF/6.3V R219 2.2M
1 2
C
EC9
R221 47K
AUDIO-DAC_MR
1 2
C165 330P
2 1
2.2uF/6.3V R222 2.2M
1 2
D30
BAV70
(4) BEEP
Speaker AMP
+5V_AUD
L+ R140 20K
B
R+ R142 20K
Rin Rout+
AUDIO_ML EC2 1U/25V R143 20K 2
AUDIO_MR EC3 1U/25V R144 20K Lin Rout-
7
SE/BTAL_SEL3 10 Shutdown Lout+
SHUT-DOWN:4.35V
RBypass Lout-
NORMAL:480mV 1
LBypass SE/BTL
8
Mute
R146
EC5 EC6
100K 2.2uF/6.3V 2.2uF/6.3V
APA2066SO0_S
GNDA
GNDA
R265
75
HP-LOUT A_HP-LOUT
1 2
A
Q35 R267
2SD1328 1.5K
F_AUDIO-AMP_MUTE
1 1 2
GNDA
5
4
+5V_AUD +5V_SYS
FB3
1A/600 OHM
2
+
C103 Q37 R271
TC5 0.1U/16V NC APM2301 NC 47K
TAN 47U/6.3V
1
R272 NC 1K
GNDA
APOWER-CON
2 1
Q38
NC MMBT3904
GNDA
2
VIN_SYS
R216
47K
C162 33P/50V D14
1
MA2J111
2 1
A
R217 47K
1 2
D15
MA2J111
2 C
AUDIO_ML
1
R190
3
100K
U11A
1
APC558
C164 33P/50V
2 1
R220 47K
1 2
6
AUDIO_MR
7
5
U11B
(4) AUDIO_MUTE
APC558
Hi:MUTE
Lo:Active
C97
+
TAN 47U/6.3V
0.1U/16V EC1
U6
GNDA
3 R+
R+ (7)
R-
15
R- (7)
EC4
+
L+
6 E 220U/6.3V
L+ (7)
L- A_HP-ROUT
11
L- (7)
SE/BTAL_SEL
14
R145
12 AUDIO-AMP_MUTE EC7 1K
+ E 220U/6.3V
H:MUTE
A_HP-LOUT
GNDA
R149
1K
GNDA
R266
75
A_HP-ROUT HP-ROUT
1 2
R268
1.5K Q36
2SD1328
1 2 1
GNDA
4
3
FB4 R148 5.6
0 VD_OUT
2
GNDP
GNDA
FB47
0
GNDRF-P
GNDA
R185 Q26
10 MMBT3906
C 1 2 2 3
+
R187 C118
150 E 47U/6.3V
A 1 2
C119
AUDIO-AMP_MUTE
2
E 47U/6.3V GNDA
+5V_AUD
2
R188 +5V_AUD
1K
2
1
APOWER-CON
R186
R191 Q28 1K
2
10K/J MMBT3904
1
R189 Q27
1 2 1
10K/J
R192 MMBT3906
1
10K/J
1
1 2
GNDA
Hold Keyboard Switch
D+3.3V
R141
J4 100K
OFF TP58
1
1
2
HOLD
3 HOLD (4)
SKY-12F06-G1.5-OA
DGND
+5V_SYS
R161 R163
10K/J 10K/J
SE/BTAL_SEL
(4) SE/BTAL_SEL
SE/BTAL_SEL3
TV_JACK-IN (4)
3
2
Video Output Circuit
+5V_OP FB31
1A/600 OHM
2 1
C209
R147
Q20 4.7K/J 10U/6.3V C98 18P/50V
2
1 2
1
MMBT3904
GNDV
L14 1.8UH
C100
2 1
1
C99 10U/6.3V
DIP 330U/6.3V
2 2
C101 C102
2
R154 R150
R155 NC NC 33P/50V 22P/50V
1 1
180
1
FB43
NC 0
GNDV
Audio Output circuit
TAN 47U/6.3V
AUDIO_ML
C108 1 2
2
D33 MA2J728
R171
A C
47K
1
F_AUDIO-AMP_MUTE
D34 2 1
0R/0805
AUDIO_MR
1 2
D35 MA2J728
1
C113 TAN 47U/6.3V
R182 A C
47K
2
OUTPUT Unit
G V R L
1 FB20
2
FB21
4
5
FB22
3
J5 FB23
6
7
PJ-362
M10
EMI-PAD R153
FB1 FB2 1K
NC 0 0
GNDP GNDP
ESD-GND GNDP
GNDA
Headphone-JACK
6 FB24
FB25
5
7
4 FB26
3
J6 PJ-328-5
FB5 FB48
M11 NC-0 FBM-160808-601
EMI-PAD
GNDP
GNDA
ESD-GND
2
1
+5V_SYS
CVBS(TVDAC0) (4)
D
2
R157
150 M9
EMI-PAD
1
FB16 0
M15 M13
EMI-PAD EMI-PAD
FB44
0
AGND GNDA AGND
R168 R169
220 0
2 1 2 1 MIXL
R172
2
1.5k
C109
2 1 1
1N/50V
1
Q24
MMBT3904
GNDA
R178 R179 C
220 0
MIXR
1 2 1 2
R183
2
1.5k
1 2 1 C114
1N/50V
1
Q25
MMBT3904
GNDA
CLOSE JACK
MIXL
FBM-160808-601
FBM-160808-601 SE/BTAL_SEL3
FBM-160808-601 MIXR
B
FBM-160808-601 VD_OUT
1 1 1 1
C167 C168 C169 C170
390P 390P 390P 390P
2 2 2 2
GNDA GNDV
HP-ROUT
FBM-160808-601
FBM-160808-601 SE/BTAL_SEL
HP-LOUT
FBM-160808-601
1 1 1
C171 C172 C173
390P 390P 390P
2 2 2
A
1