Read JBL ESC 550 Source (serv.man3) Service Manual online
3 4
Dolby Pro-Logic
Ò
Surround Processor/CD Player/Tuner
SOURCE
CONTROL/DISPLAY SCHEMATIC #2
CEN_LED
SURR_LED
DELAY_LED
BAL_LED
MUTE_LED
VOL_LED
D
ATA
CLK
CE
INT
OSC
VSS
VDD2
VDD1
VDD
COM4
COM3
COM2
COM1
S51
S50
S49
S48
S47
S46
S45
S44
S43
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10
S9
S8
S7
S15
S14
S13
S12
S11
S10
S9
S8
S7
PM
AM
FM
SLEEP
W
AKE
UP
REPEA
T
AUT
O
RANDOM
MONO
MEMOR
Y
STEREO
TRACK
ST
ATION
OVER
20
19
18
17
16
15
14
13
12
11
9
8
7
6
5
4
3
2
1
10
AUX
TV
KHZ MHZ
5
CD
D
D
LEVEL
LEVEL
CENTER
TIME
DELA
Y
OFF
ON
ON
SURROUND
SURROUND
TUNER
PRO
LOGIC
DOLBY
SURROUND
BACK
LIGHT
LED
PANEL
C933
C935
C934
R919
R921
R920
C932
D915
R922
C951
R951
TA304
SN951
R380
R379
R322
R323
TA324
R325
TA326
R324
TA328
TA329
R327
R326
TA325
R329
R328
R321
R363
TA327
R364
RB901
D917
Q302
CN302
R337
R338
R318
Q301
TA309
R317
R310
TA310
R313
R31
1
TA312
TA31
1
R301
R308
TA305
R309
TA321
R306
TA308
TA307
TA303
TA306
R307
R304
R305
TA302
R303
TA301
R302
R366
TA323
LD31
1
TA315
TA322
R314
LD312
JK501
Q313
RB501
TA313
TA314
R315
R312
D916
C913
Q312
R356
R346
Q306
R357
R347
Q307
LD307
R358
R348
Q308
LD308
R359
R349
Q309
LD309
R365
RB702
RB301
R361
Q311
R362
ZD906
R360
RB302
IC904
ZD905
R923
R924
Q310
DP201
KDG0050-001
LP301
BK5V
CONTROL
L
R
R
GND
GND
REMOTE
AGND
OPTION
CE75824
DEVCLK
DEVDATA
100P
.1
.1
100
560K
100K
22/16
1N4148
1K
100/16
10
BASS-
10k
10k
390
390
PLA
Y
680
TUNING+
560
ST
AT
ION+
ST
AT
ION-
820
750
CLEAR
1K5
1K2
330
2K2
TUNING-
2.4-1/4
1N4148
2SC945P
47K
47k
47k
2SC945P
REPEA
T
2K2
1.5K
RANDOM
4K7
2K
TV
AUX
150
820
SURROUND
1.2K
ADD
680
MODE
MONO
BASS+
REAR
750
390
560
TREBLE-
390
TREBLE+
330
10K
DELETE
OPEN/CLOSE
TUNER
8.2K
2SD882P
AM/FM
CD
150
3K
1N4148
100/16
2SC945P
10K
470
2SC945P
KER0205-001
10K
470
2SC945P
10K
470
2SC945P
10K
470
2SC945P
150
10K
2SC945P
47_1/4W
6V
10K
LC75824E
4.5V
1K
1K
2SC945P
KLD0020-001
B-
GND
POWERSW
TO
CDPCB
POWER
MUTELED
MUTELED
BALANCELEVEL
DELAY
TIME
SURROUNDLEVEL
CENTERLEVEL
OSC
VDD
VDD1
VDD2
VSS
INT
CE
CLK
D
ATA
SETUP
GND
Rout
VCC
1
2
1
2
3
2
3
1
2
3
4
5
5
7
8
1
2
3
4
2
3
4
1
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
7
8
9
10
11
1
2
2
1
2
3
2
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50 51
52
53
54
55
56
57
58
59
60
61
62
63
64
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
KI1
KI0
KI0
KI2
CONTROL/DISPLA
Y
(SCHEMA
TIC
#2)
5
5
4
4
3
3
2
2
1
1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
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