Read JBL CINEMA BASE (serv.man2) Service Manual online
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D
D
C
C
B
B
A
A
Title
Number
Revision
Size
A3
Date:
5/16/2014
Sheet of
File:
D:\ERIC SHEN\..\STV250 Key Board_20140515.SchDoc
Drawn By:
STV250 Key/LED
interface
interface
1
1
E
GND
GND
SURROUND_LED
C400
100NF
C401
100NF
STEREO_LED
LED_POWER_ON
LED_POWER_OFF
KEY_POWER
KEY_ADC
R409
33
R408
33
R407
33
R406
33
R428
4.7K
4.7K
R430
4.7K
4.7K
R425
10K
R435
1K
1K
R433
1K
1K
R423
10K
+5V_STB
+5V_STB
LED_POWER_OFF
LED_POWER_ON
R448
4.7K
4.7K
R450
1K
1K
R446
10K
LED_BT
+5V_STB
GND
KEY_POWER
+3.3V_STB
GND
1
3
2
4
SW403
TC-1101
1
3
2
4
SW404
TC-1101
1
3
2
4
SW405
TC-1101
POWER
VOL+
SURROUND
1%
R419
10.0K
10.0K
KEY_ADC
+3.3V_STB
GND
1
3
2
4
SW400
TC-1101
1
3
2
4
SW401
TC-1101
1
3
2
4
SW402
TC-1101
SOURCE
VOL-
BT
1%
R400
10.0K
10.0K
GND
R429
4.7K
4.7K
R431
4.7K
4.7K
R426
10K
R436
1K
1K
R434
1K
1K
R424
10K
+5V_STB
+5V_STB
LED_AUX
R449
4.7K
4.7K
R451
1K
1K
R447
10K
LED_VOL+
+5V_STB
GND
R441
4.7K
4.7K
R445
1K
1K
R439
10K
LED_VOL-
+5V_STB
GND
R427
4.7K
4.7K
R432
1K
1K
R422
10K
LED_HDMI
+5V_STB
R413
33
R412
33
R411
33
R410
33
R414
33
+5V_STB
+3.3V_STB
LED_BT
LED_AUX
LED_OPTICAL
LED_HDMI
LED_VOL+
LED_VOL-
LED_VOL-
2
3
1
Q403
MMBT3906
MMBT3906
2
3
1
Q401
MMBT3906
MMBT3906
2
3
1
Q408
MMBT3906
MMBT3906
2
3
1
Q409
MMBT3906
MMBT3906
2
3
1
Q400
MMBT3906
MMBT3906
2
3
1
Q407
MMBT3906
MMBT3906
2
3
1
Q404
MMBT3906
MMBT3906
2
3
1
Q402
MMBT3906
MMBT3906
C409
100PF
C410
100PF
C407
100PF
C408
100PF
C406
100PF
C405
100PF
C404
100PF
C403
100PF
C402
100PF
C411
100PF
C412
100PF
C413
100PF
R405
33
R404
33
R403
33
A
W
C
C
A
O
D400
ORANGE/WHITE
ORANGE/WHITE
D403
WHITE
D405
WHITE
D404
BLUE
R418
0
+5V
+3.3V
POWER_OFF
POWER_OFF
POWER_ON
VOL+
VOL-
HDMI
BT
OPTICAL
KEY_POWER
AUX
KEY_ADC
SURROUND
STEREO
GND
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
CON400
FFC,20PIN,0.5MM
1%
R401
7.5K
1%
R402
4.7K
1%
R420
7.5K
1%
R421
4.7K
D401A
WHITE
WHITE
D401B
GREEN
GREEN
D401C
ORANGE
ORANGE
1
3
2
Q412
MMBT3904
R456
10K
R457
NM
NM
GND
LED_OPTICAL
GND
R440
4.7K
4.7K
R442
4.7K
4.7K
R438
10K
R444
1K
1K
R443
1K
1K
+5V_STB
+5V_STB
2
3
1
Q406
MMBT3906
MMBT3906
2
3
1
Q405
MMBT3906
MMBT3906
A
W
C
C
A
O
D402
ORANGE/WHITE
1
3
2
Q410
MMBT3904
R452
10K
R453
NM
NM
GND
1
3
2
Q411
MMBT3904
R454
10K
R455
NM
NM
GND
SURROUND_LED
R437
10K
STEREO_LED
IR_IN
1
2
3
2
3
CON401
B 3B-ZR
+3.3V_STB
GND
1
2
L40
1
B
LM
1
8B
D
471
SN
1
+3.3V_STB
C418
10PF
C419
4.7UF
IR_IN
IR_IN
C417
10PF
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