JBL HARMONY Service Manual page 55

I J
2. EF BALANCE
SET SCOPE AT DC MODE.
SCOPE
SET SCOPE "+" TO TPTE, "-" TO VREF.
TEI SHORT WITH TPVC.
CHECK DC BALANCE ON SCOPE (A=B)
A
OPT
R301
L
AUX 8.2uH
22K
J301
OPT
R302
R
8.2uH
22K
IC304A
4558L
R864
10K 3
1
2
4
C853
220/10
IC401
850 56K
49 56K
C305
2.2/50
810
SB772
R895
22K
Q811
2SC945P
L
K L
A
B
1259-7YGW
POWER
Q203
2SC945P
C312
22/16
220P
TDA7313
C310 C309
22/16 22/16
TA221
1/50
C314
1/50
C315
R312 180K
R
C318 10P
1/50
IC305A
C316
4558L
2
R
R310
1
20K
3
4
RR316 100K
R313 180K
C319 10P
IC305B
6
4558L
L
7
R311
C317
20K
1/50
5 8
R349
R317 100
C341
100K
100/16
R337
M N
RB904
RB202
TO PWR PCB
TO CPU
1 2 3
1 2 3 4 5 6 7 8 9 10
Q207
2SC945 GND 6V
R282
4K7
Q208
2SC2001
B A
C R280
4K7
C210 C211
.001 .001
D204
EC16B24202
VR201
MUTE
Q202
2SC945P
C272
100/16
R271
SN201
10
VCC
Rout
GND
C276
22/16
C271
100/16
R202 R203
R204
390
RB205
1 2 3
390
470
TA203
ALARM1
1 2 3
CN205
R218 470 R219 390
R220 390
TA201 TA202
TA218 TA219
TA217
SNOOZE
ALARM OFF
AM/FM CD AUX
R378
R318
560
13k
IC307A
4558L
2
C320 C322 C326
R322
1
.022
.022
3
2k4
R
.0068
4
R380
R320
560
11k
R319
R379
560
13k
IC307B
C325
6 4558L
C321 C323 R323 C327
7
.022 .022
5
2k4
.0068
8
R321 R381 C339
11k 560 100/16
O P
KLD0027-001 DSP201
Alarm 1
Sleep
9V Alarm 2
1 2 3 4 5 6 7 8 9
PTY CT RandomRepeat
PM
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
49
S49
50
S50
51
S51
52
COM1
53
COM2
54
COM3
55
COM4
VDD 56
VDD
R277 VDD1 57
IC202
VDD1
VDD2 58
1K LC75824E
VDD2
VSS 59
R278
VSS
OSC 60
1K
R279
OSC
61
1K INT
INT
CE 62
CE
CLK 63
CLK
DATA 64
DATA
R207
R205 560 R206 680 750 R208 820 R209 1K2 R210
TA204 TA205 TA206 TA207 TA208 TA209
ARARM2 ALARM SET CLOCK SET PLAY PAUSE STOP
TA220
STORE
IC301A
2 4558L
C324 1
.033
3
4
R326
470
R
IC301B
6 4558L
7
.033
C501
5
8 R501
R327 1/50
10K
470
R504
10K
C328
100/16
C330
R
R367
47K
Q R
HARMONY PAGE 41 - 2 of 4
Preset
RDS Tuner AUX CD Skip
Tune
10 11 12 13 14 15 16 17 18 19 20 +
Search
Memory Station Stereo Mono
KHz
MHz
AM 5
FM
32
S32
31
S31
30
S30
29
S29
28
S28
27
S27
26
S26
25
S25
24
S24
23
S23
22
S22
21
S21
20
S20
19
S19
18
S18
17
S17
1K5 R211 2K R212 3K R213 4K7 R214 8K2
TA210 TA211 TA212 TA213 TA214
OPEN/CLOSE TRACK UP TRACK DN SEARCH UP SEARCH DN
IC501
TDA7381
SP501
CN501 RB501
+
L/SP
-
SP502
CN502RB502 +
R/SP
-
C504
47/16
1
2
3
4
5
6
7