Panasonic RR-US551PP / RR-US551E / RR-US551EE Service Manual ▷ View online
57
15.5. LCD CIRCUIT
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C
D
B
E
G
H
F
A
C
D
B
E
G
H
F
B
LCD CIRCUIT
SCHEMATIC DIAGRAM - 5
RR-US551E/EE/PP LCD
CIRCUIT
A
TO
MAIN CIRCUIT
(P502)
IN SCHEMATIC
DIAGRAM - 1
MAIN CIRCUIT
(P502)
IN SCHEMATIC
DIAGRAM - 1
LCD DISPLAY
LCD DISPLAY
: +B SIGNAL LINE
10K
R608
4
3
2
1
S607
4
3
2
1
S608
D201
B3AAB0000037
100K
R201
100K
R203
C202
680P
R202
39K
C205
0.047
0.047
C204
0.047
C203
R206
0
B0ACCJ000027
D126
C208
0.01
47
45
43
40
41
38 37
39
42
44
46
23
20
15
14
18 19
16 17
22
21
24
35
32
33
28
25
27
26
30
31
29
34
36
6
1
4
2
3
5
48
8
9
7
10
12
11
13
C0HBA0000251
IC201
18
16
14
8
9
11
12
10
2
3
1
5
7
6
4
13
15
17
19
COM3
COM1
S33
S27
S28
S30
S31
S29
S21
S22
S20
S24
S26
S25
S23
S32
S34
COM2
COM4
P5*
C126
0.22
R207
2.2K
10K
R122
1
4
2
3
IC105
C0DBGYY00990
1
4
2
3
IC106
C0EBA0000046
C121
1
6
7
5
9
25
24
26
21
20
22
17
18
13
10
12
11
16
14
15
19
23
28
27
8
1
3
4
2
29
30 NC
P3
C124
6.3V100
C125
6.3V100
5.6K
R613
6.8K
R612
S610
27K
R610
220
R611
15K
R609
S609
4
3
2
1
S602
4
3
2
1
S601
R602
5.6K
R604
10K
R603
6.8K
4
3
2
1
4
3
2
1
S604
18
16
14
8
9
11
12
10
2
3
1
5
7
6
4
13
15
17
19
S18
S16
S14
S8
S9
S11
S12
S10
S2
S3
S1
S5
S7
S6
S4
S13
S15
S17
S19
P6*
4
3
2
1
S605
R605
15K
27K
R606
4
3
2
1
S606
STOP
MENU/-REPEAT
+VOLUME
ERASE
FAST FORWARD
S603
FAST BACKWARD
PLAY/STOP/
ENTER
FOLDER/
SPEED
-VOLUME
VSS
CD
S27
S10
S28
S9
S25
S12
[24] S24
LCD DRIVER
S26
[13] S13
S11
S29
P8/S8
CE
S15
S19
S18
S22
S23
S20
S21
S16
S17
S14
VSS
[37] COM3
S34
[48] DI
P3/S3
[47] CL
CE
VSS
VLCD2
INH
OSC
VDD
[38] COM4
VLCD
VLCD1
P1/S1
P2/S2
COM1
COM2
S31
P6/S6
S32
P5/S5
P7/S7
S30
S33
P4/S4
VIN
VOUT
VIN
INH
GND
GND
GND
GND
SW2.8V
SW2.8V
VDDRTC
NC
KEY2
GND
GND
GND
KEY1
GND
GND
GND
GND
VDET
GND
LCD_CL
LCD_DI
LCD_CE
ESD_GND
NC
REC_LED
2.8V_DD_OUT
2.8V_DD_OUT
ESD_GND
VOUT
VOLTAGE REGULATOR
VOLTAGE DETECTOR
REC/PAUSE
RL502*
RL501*
58
59
16 Printed Circuit Board
16.1. MAIN P.C.B.
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
10
11
12
13
A
RR-US551PP/E/EE
MAIN P.C.B.
NOTE: " * " REF IS FOR INDICATION ONLY
(SIDE B)
(SIDE A)
MAIN P.C.B. (REP4604C)
NOTE: AFTER IC601 IS REPLACED, ID DATA SHOULD BE WRITTEN IN THE IC.
PLEASE CONTACT TO NEAREST SERVICE COMPANY OR CS CENTER.
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
PbF
B
C
E
B
C
E
G
D
S
G
D
S
G
D
S
B
C
E
G
D
S
B
C
E
B
C
E
G
D
S
G
D
S
B
C
E
B
C
E
PbF
G
D
S
B
C
E
B
C
E
B
C
E
C103
C104
C313
C314
C407
C408
C41
1
C419
C442
C444
C447
C449
C450
C451
C452
C453
C457
C458
C459
C460
C462
C464 C465
C466
C468
C469
C470
C471
C473
C474
C509
C701
C1
109
C1
116
C1128
C1
129
C1130
C1133
C1135
IC403
IC404
IC405
IC508
IC509
IC1101
JK401
L501
LB315
LB316
LB317
LB318
LB401
LB402
LB403
LB404
LB701
M403
Q462
Q466
Q524
Q525
QR301
QR409
QR470
QR471
R105
R128
R138
R307
R308
R317
R323
C324
R325
R405
R407
R408
R410
R411
R419
R420
R441
R442
R444
R446
R447
R448
R449
R450
R451
R452
R454
R455
R456
R457
R458
R459
R460
R462
R463
R464
R466
R467
R468
R475
R476
R522
R523
R524
R525
R540
R541
R542
R
111
3
R1116
R1127
P301
C309
C331
C332
G501*
IC102
IC103
QR521
QR522
QR526
R526
D502
C502
JK501
JK301
3330B
3330B
X1101
ICP501
1.1A
X
CL113
CL114
X
CL414
X
X
CL413
CL10
X
C102
C105
C106
C107
C108
C301
C302
C303
C304
C305
C306
C307
C312
C412
C414
C415
C417
C420
C422
C425
C428
C431
C432
C437
C438
C443
C445
C446
C503
C504
C517
C518
C531
C620
C1108
C
111
0
C
1111
C
111
7
C1118
C1
121
C1
132
C1134
C1138
C1
139
C1
141
C1142
D426
D427
IC301
IC401
IC402
IC503
IC512
LB501
M402
Q101
Q413
Q416
Q418
Q421
Q423
Q434
Q439
Q505
Q508
Q510
QR101
QR406
QR501
QR506
R104
R108
R109
R110
R111
R1
19
R120
R124
R136
R140
R412
R413
R414
R415
R416
R417
R418
R421
R423
R425
R428
R429
R430
R431
R432
R434
R435
R436
R437
R438
R439
R443
R505
R506
R507
R508
R509
R510
R511
R512
R513
R514
R515
R516
R1110
R
111
7
R1118
R1
131
ET101*
ET102*
S621
(ZOOM / WIDE / MANUAL)
X1103
C520
IC502
P502
Q520
QR523
R112
R113
R123
R139
R621
S620
(HOLD / POWER ON)
C622
R129
C433
C434
C510
C514
C515
3330B
3330B
M401
ICP502
1.1A
X
CL128 X
X
CL127
CL126
X
CL125 X
X CL29
CL401
X
X CL404
CL405
X
X CL402
CL30
X
CL112
X
D503
CL28
LB300
L513
CL115
X
CL116
X
IC304
C326
R125
R126
C615
C616
R1
137
R1
134
R1
135
R1
136
IC601
C608
R1
133
R1
132
C607
C612
C610
C518
USB JACK
SPEAKER
ZOOM MIC
MIC
(PLUG IN POWER)
EARPHONE
2 AAA LR03
BATTERIES / DC 3V
MAIN MIC
(RCH)
MAIN MIC
(LCH)
R145...US551
1 2
3 4
1
2
1
2
3
4
5
1
4
2
3
1
2
4
3
1
2
4
3
1
4
8
5
1
4
8
5
1
2
3
4
5
1
2
3
4
5
1 2
4 3
7
4
1
8
5
2
9
6
3
1
2
4
3
1
2
4
3
1
5
10
15
20
25
30
31
35
40
45
50
55
60
61
65
70
75
80
85
90
91
95
100
105
110
115
120
1+
2-
1
2
4
3
6
5
1
5
8
9 10
1516
17
20
24
25
30
32
1
2
3
5
4
1
2
3
5
4
1
5
10
15
16
20
25
30
1+
2-
1+
2-
3
4
2
1
1
2
1
10
169
168
167
166
165
164
163
162
161
160
159
158
157
156
155
154
153
152
151
150
149
148
160
159
158
157
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
120
132
131
130
129
128
127
126
125
124
123
122
121
120
119
118
117
118
117
116
115
114
115
114
113
112
111
112
111
110
109
108
107
106
105
109
108
107
106
105
104
103
102
103
102
101
100
100
99
98
97
96
95
94
95
94
93
92
91
92
91
90
89
88
87
86
87
86
85
84
83
84
83
82
81
80
79
78
79
78
77
76
75
76
75
74
73
72
71
70
71
70
69
68
67
68
67
66
65
64
63
62
61
65
64
63
62
61
60
59
58
59
58
57
56
55
56
55
54
53
52
51
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
49
48
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
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
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
60
16.2. LCD P.C.B.
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
10
11
12
13
LCD P.C.B. (REP4478B)
RR-US551PP/E/EE
LCD P.C.B.
B
NOTE: " * " REF IS FOR INDICATION ONLY
4
2
3
1
4
2
3
1
4
2
3
1
4
2
3
1
4
2
3
1
4
2
3
1
4
2
3
1
4
2
3
1
PbF
PbF
(SIDE A)
C121
C126
C208
D201
IC105
IC106
P5*
(LCD DISPLAY)
P6*
(LCD DISPLAY)
R122
R206
R207
R602
R603
R604
R605
R606
R608
R609
R610
R610
S601
(PLAY / STOP/ENTER)
S602
(FAST FORWARD)
S603
(FAST BACKWARD)
S604
(- VOLUME)
S605
(FOLDER/SPEED)
S606
(STOP)
S607
(+ VOLUME)
S608
(REC /PAUSE)
R611
R612
R613
3331A-1
3331A-1
RL501*
RL502*
(SIDE B)
C124
C125
C202
C203
C204
C205
D126
IC201
R201
R202
R203
S609
(MENU / - REPEAT)
S610
(ERASE)
P3
3331A-1
3331A-1
4
2
3
1
4
2
3
1
1
5
10
15
19
1
5
10
15
19
1
5
10
12
13
15
20
24
25
30
35
37
40
45
48
1
5
10
15
16
20
25
30
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