Panasonic SC-HC55EG Service Manual ▷ View online
93
Step 3 : Gently push up the SMPS Shield Plate to release the
catches.
catches.
Step 4 : Gently push up the SMPS Shield Plate to release the
catches.
catches.
Step 5 : Remove SMPS Shield Plate.
Step 6 : Lift up Himelons at the shaded area.
Caution : Replace the Himelons if they are torn during dis-
assembling.
Step 7 : Remove Rivet.
Caution : Replace the Himelons if they are torn during dis-
assembling.
Step 7 : Remove Rivet.
Step 8 : Place back the Panel P.C.B. as shown.
Step 9 : Connect 9P FFC at the connector (CN6801) on Panel
P.C.B..
Step 9 : Connect 9P FFC at the connector (CN6801) on Panel
P.C.B..
94
Step 10 : Place the CD Mechanism on the Insulating Material.
Step 11 : Connect 5P wire at the connector (CN7901) on CD
Servo P.C.B..
Step 12 : Connect 27P extension cable (RFKZHC55K1) from
CN7002 on the Main P.C.B. to CN7002 on the CD Servo
P.C.B..
Step 11 : Connect 5P wire at the connector (CN7901) on CD
Servo P.C.B..
Step 12 : Connect 27P extension cable (RFKZHC55K1) from
CN7002 on the Main P.C.B. to CN7002 on the CD Servo
P.C.B..
Step 13 : Use a tape to keep the centre switch (S643)
depressed.
depressed.
Step 14 : Place the Front Panel Block on the Insulating Mate-
rial.
Step 15 : Connect 5P Wire at the connector (CN1002) on
iPhone P.C.B..
Step 16 : Connect 15P extension cable (RFKZHC55K2) from
CN300 on the Remote Sensor P.C.B. to CN303 on the Main
P.C.B..
rial.
Step 15 : Connect 5P Wire at the connector (CN1002) on
iPhone P.C.B..
Step 16 : Connect 15P extension cable (RFKZHC55K2) from
CN300 on the Remote Sensor P.C.B. to CN303 on the Main
P.C.B..
Step 17 : Place the SMPS Assembly on the Insulating Material.
Step 18 : Connect 6P wire at the connector (CN905) on SMPS
P.C.B..
Step 18 : Connect 6P wire at the connector (CN905) on SMPS
P.C.B..
95
Step 19 : Check and repair SMPS P.C.B. according to the dia-
gram shown.
gram shown.
96
10 Voltage Measurement & Waveform Chart
Note:
• Indicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance) with
the chassis taken as standard.
Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester.
Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester.
• Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point because it
may differ from actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
10.1. CD SERVO P.C.B.
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CD PLAY
1.6
0
3.2
1.6
0
3.3
3.2
7.5
0
0
3.9
3.9
2.7
2.5
2.8
2.5
1.1
3.8
5.1
0
REF NO.
MODE
21
22
23
24
25
26
27
28
29
30
CD PLAY
1.5
0
1.1
0
0
1.6
1.6
3.2
0
0
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CD PLAY
3.3
1.5
1.5
0
1.5
1.5
3.3
1.5
1.5
0
1.6
1.5
3.3
3.2
3.2
3.2
3.2
0
3.2
0
REF NO.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
CD PLAY
0
1.7
1.8
1.6
3.3
0
1.6
1.6
1.7
1.7
3.2
3.2
0
3.3
0
3.2
0
3.2
1.3
1.4
REF NO.
MODE
41
42
43
44
45
46
47
48
49
50
CD PLAY
0
1.3
1.3
3.3
1.3
1.3
0
1.3
1.3
0
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CD PLAY
0
1.8
0
3.3
3.3
0
0
0
0
0
0
3.3
3.3
3.3
0
0
0
0
0
0
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
0
0
0
0
3.2
3.2
0
3.2
REF NO.
MODE
E
C
B
CD PLAY
3.0
2.0
2.3
Q7601
SC-HC55EG CD SERVO P.C.B.
IC7851
IC7704
IC7501
IC7002
IC7002
IC7704
IC7704
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