Strong SRT8500 Service Manual page 28

6
AUDIO OP
D
R215 C217 R219
[3]
LINE_OUTL
0R 2.2uF 100K
0805
R216 C216 C220
220K 2.2nF 390P
R217 C219 R220
[3]
LINE_OUTR
0R 100K
2.2uF
0805
C221
R218 C218
390P
220K 2.2nF
VCC5V_PD 5VA_A
L201 FB/60R
0603
C
CE201 C201
104
100uf/16v
Video Buffer
B
U301
NCS2553
[3] 1 8
IDAC_OUT_X IN1 OUT1
R301
2 7
NC IN2 OUT2
3 6
IN3 OUT3
5VA
VCC5V_PD
L301 FB/60R 4 5
VCC GND
0603
CE301 C308
104
100uf/16v
U302
[3] 1 8 R312
IDAC_OUT_R IN1 OUT1
A
[3] 2 7 R315
IDAC_OUT_G
IN2 OUT2
3 6
[3] R317
IDAC_OUT_B IN3 OUT3
4 5
5VA VCC GND
C309
NCS2553
104
5
R223 390K
C222 6.8P R225 330R
5VA_A C226
UVP>1.15V
0.33uF
R233 R234
5VA_A
R221
5.1K 1.1K
5.1K
R235
1 2 NC(1M)
-IN1 OUT1
R231 1K
3
- EN
R232 4K7
+
R222
10 9 R226 330R
-IN2 OUT2
5.1K
C227
U201
0.33uF
SGM8905
C224 C225
0.33uF 0.33uF
C223 6.8P
R224 390K
C304 150P
R304 75R L303 600R [7]
CVBS_RCA
[7]
R305 75R L302 600R
CVBS_SCART
C305 150P
C306 C307
47P 47P
Near Connector
[7]
75R L304 600R
PR_OUT
75R L305 600R [7]
Y_OUT
[7]
75R L306 600R
PB_OUT
C322 C323 C324
47P 47P 47P
Near Connector
4
4:3/16:9 Control
AV/TV 16:9/4:3
GPIO
MODE
(GPIOxx) (GPIOxx)
16:9 (5V~8V) 1 1
[7] AV (9.5V~12V)
1 0
LINE_OUT_L
(0V)
TV 0 X
R227
10K
VCC12V
R594
[3]
1.5K
MUTE_CTRL
0603
VCC5V_PD
[7]
LINE_OUT_R
R591
Q592
R228
10K
3904
10K
R593
[3]
TV/AV
10K
E
RGB/CVBS Control
VCC5V_PD
R598
10K
R597
[3]
RGB/CVBS
150R
GPIO RGB/CVBS
MODE (GPIOxx)
CVBS OUT (0V) 0
RGB OUT (1-3V) 1
STB StandBy 0
SPDIF OUT
L251 FB120R
VCC5V_PD
0603
C251 R251
104 22R
R252 Q251
[3]
3904
SPDIF_OUT
100R
E
R253
100R
C254
100P
3 2
HISTORY OF MODIFICATIONS
REV.
1
2
[7]
SCART_MODE
R595 VCC5V_PD
1.5K
0603
R592
Q593
10K
3904
R596
[3]
16:9/4:3
10K
E
VCC5V_PD
R560
150R
Q594
3904
E
[7]
FB_OUT
R599
1K
DESCRIPTION
DOC.NO.:
SCH P/N:
PCB P/N:
THIS DOCUMENT IS THE PROPERTY OF Shenzhen
C252 L252
Jiuzhou Electric CO.,LD. THE CONTENTS OF THIS
[7]
SPDIF
DOCUMENT ARECONFIDENTIAL AND CONTSTITUTE
FB120R
104
TRADE SECERTSPROPRIETARY TO Shenzhen Jiuzhou
0603
R254 C253
Electric CO.,LD.
75R 10P
NEITHER THIS DOCUMENT NOR ITS CONTENTS SHALL
BE DISCLOSED TO ANY UNAUTHORIZED PERSON.
COPIED OR PUBLISHED WITHOUT Shenzhen Jiuzhou
Electric CO.,LD.'S PRIOR WRITTEN
COPYRIGHT C 2011 Shenzhen Jiuzhou Electric CO.,LD
1
CHECK.BY APP.BY DATE
J801
[7]
LINE_OUT_R 1 R/OUT
2
R/IN
[7]
LINE_OUT_L 3 L/OUT
4 GND
5
GND
6 L/IN
[7]
PB_OUT 7 BLUE
[7]
SCART_MODE 8 FUNCTION
9
GND
10
NC
[7]
Y_OUT 11 GREEN
12
NC
13
GND
14
NC
[7]
PR_OUT 15 RED/C
[7]
FB_OUT 16 BLANK
17
GND
18
GND
[7]
CVBS_SCART 19 VIDEO/O
20 VIDEO/IN
21 SHIELD
TV SCART
J301
3
LINE_OUT_L [7]
[7] 2
LINE_OUT_R
1
[7] 6
CVBS_RCA
[7] 5
SPDIF
4
C231 C232
102 102
Shenzhen Jiuzhou Electric CO.,LD
AUDIO & VIDEO & SCART
MODEL NO.:
PROJECT CODE:
DOC. REV.: V1.1
SIGN
DESIGNED BY: Xuewei 2011-12-19
DATE
SIGN
DRAWN BY:
DATE
SIGN
CHECKED BY:
DATE
SIGN
APPROVED BY:
DATE
CONSENT.
SIZE: A2 SHEET: 7 OF 11
D
C
B
A