Panasonic DMR-ES15EB / DMR-ES15EP / DMR-ES15EC / DMR-ES15EG / DMR-ES15EBL Service Manual ▷ View online
11.2. Caution for Replacing Parts
11.2.1. Items that should be done after replacing parts
33
DMR-ES15EB / DMR-ES15EP / DMR-ES15EC / DMR-ES15EG / DMR-ES15EBL
11.3. Standard Inspection Specifications after Making Repairs
After making repairs, we recommend performing the following inspection, to check normal operation.
No.
Procedure
Item to Check
1
Turn on the power, and confirm items pointed out.
Items pointed out should reappear.
2
Insert RAM disc.
The Panasonic RAM disc should be recognized.
3
Enter the EE (TU IN / AV IN - AV OUT) mode.
No abnormality should be seen in the picture, sound or operation.
4
Perform auto recording and playback for one minute using the RAM
disc.
disc.
No abnormality should be seen in the picture, sound or operation.
*Panasonic DVD-RAM disc should be used when recording and
playback.
*Panasonic DVD-RAM disc should be used when recording and
playback.
5
If a problem is caused by a VCD, DVD-R, DVD-Video, Audio-CD, or
MP3, playback the test disc.
MP3, playback the test disc.
No abnormality should be seen in the picture, sound or operation.
6
After checking and making repairs, upgrade the firmware to the
latest version.
latest version.
Make sure that [FIRM_SUCCESS] appears in the FL displays.
*[UNSUPPORT] display means the unit is already updated to
newest same version. Then version up is not necessary.
*[UNSUPPORT] display means the unit is already updated to
newest same version. Then version up is not necessary.
7
Transfer [9][9] in the service mode setting, and initialize the service
settings (return various settings and error information to their
default values. The laser time is not included in this initialization).
settings (return various settings and error information to their
default values. The laser time is not included in this initialization).
Make sure that [CLR] appears in the FL display.
After checking it, turn the power off.
After checking it, turn the power off.
Use the following checklist to establish the judgement criteria for the picture and sound.
Item
Contents
Check
Item
Contents
Check
Picture
Block noise
Sound
Distorted sound
Crosscut noise
Noise (static, background noise, etc.)
Dot noise
The sound level is too low.
Picture disruption
The sound level is too high.
Not bright enough
The sound level changes.
Too bright
Flickering color
Color fading
Flickering color
Color fading
34
DMR-ES15EB / DMR-ES15EP / DMR-ES15EC / DMR-ES15EG / DMR-ES15EBL
12 Block Diagram
12.1. Power Supply Block Diagram
H
H
H
H
RESET +5.2V
UNREG +38V
1
IC7505-
D7506
X SW+12.4V
A
B
C
D
E
F
H
G
ANA+3.3V
X SW+3.3V
X SW+3.8V
IC7501- 16
(REG.X SW+3.3V)
IC1505
VOUT
VIN
5
2
1
GND
3 CONT
(REG.ANA+3.3V)
IC1521
VOUT
VIN
1
4
5
8
GND CONT
DI P ON
IC7501- 44
IC7501- 44
SECTION
TIMER
FROM
16,17,19
P1501
P1102
X SW+3.8V
3,4,5,6
P1501
P1102
X SW+5.8V
12,13,14,15
P1501
P1102
X SW+12V
TRANSFORMER
POWER SWITCHING
DISPLAY HEATER
T7501
7
1
IP1501
2
1
IP7501
2
1
PS+11.6V
8
8
46
IC3001- ,IC4009- ,IC4012-
PWR SAVE :ON
IC7501- 79
IC7501- 79
SECTION
TIMER
FROM
( :ON)
QR7401
(REG.PS+11.6V)
IC7401
VOUT
VIN
3
5
:ON
2
2
1
GND
H
H
H
DR+12V
DR P ON
IC7501- 42
IC7501- 42
SECTION
TIMER
FROM
( :ON)
QR1501
H
( :ON)
QR1502
(REG.DR+12V)
IC1501
VOUT
VIN
3
1
:ON
2
2
5
GND
E
HOT
COLD
(ERROR VOLTAGE DET.)
IC1200
3
2
1
(FEED BACK)
Q1200
1
2
3
4
6
5
4
3
2
1
S1B
S1A
S2A
S2B
S2C
S2D
VIN
7
P2
P1
10
12
V1
V2
7
8
F/B
Z/C
GND VCC
(SWITCHING IC)
IC1150
5
9
4
3
1
2
TRANSFORMER
SWITCHING
POWER
T1150
RECTIFIER
D1140,C1143
VA1110,L1120,L1121
250V2A
F1101
ABSORBER
SURGE
AND
SUPPRESSOR
SURGE
P1101
AC INLET
DMR-ES15EB/EP/EC/EG/EBL
Power Supply Block Diagram
Power Supply Block Diagram
MAIN P.C.B.
POWER P.C.B.
DMR-ES15EB / DMR-ES15EP / DMR-ES15EC / DMR-ES15EG / DMR-ES15EBL
35
H
H
H
L
L
X SW+5.8V
JC REG.+5V
PS+5V
GND
BOOSTER+5V
AU+5V
ANA+5V
TU P ON
IC7501- 43
IC7501- 43
SECTION
TIMER
FROM
(REG.AU+5V)
IC4011
VOUT
VIN
5
2
:ON
H :ON
3
4
GND
CONT
(REG.ANA+5V)
IC1520
VOUT
VIN
5
2
3
1
GND
DR+5V
X SW+3.8V
(REG.DR+5V)
IC1506
VOUT
VIN
4
3
1
2
GND
TUNER P.C.B.
U/V TUNER
TU7801
5V(VIF)
BTL+30V
5V(TUNER)
BOOSTER+B
17
16
7
1
K7810
(REG.+5V)
IC1510
VOUT
VIN
3
5
:ON
2
1
GND
3
10
17
PS7801
PS7801
PS7801
PP7401
PP7401
PP7401
94
84
42
IC3001- / /
(REG.BOOSTER+5V)
IC7402
VOUT
CONT
5
2
3
GND
1 VIN
IC7501- 12
IR7501- 3
90
99
62
IC7501- / /
73
IC7501-
2
IC4901-
RESET
P FAIL
IC7502
OUT
(RESET)
VDD
4
5
(RESET)
IC7505
OUT
VDD
1
2
D7509
4
1
3
2
X SW+5.2V
CONT
5
(REG.X SW+5.2V)
IC1507
VOUT
VIN
1
4
8
GND
40
25
8
6
IC3001- / / /
(REG.PS+5V)
IC7403
VOUT
VIN
1
5
4
8
CONT
X SW+3.2V
H
POWER ON
FB
S
CS
EXT
D
2
6
5
1
G
3
Q59501
(REG.D+1.2V)
4
8
ON/OFF 2
5
7
VIN
1
IC59501
(DC-DC CONVERTER)
DIGITAL P.C.B.
IC53003(+5V)
IC50001/IC53001/IC53003/IC57001(+3.3V)
VIN
1
2
3
VOUT
(REG.D+3.3V)
IC50001/IC53003/IC55004/
IC55006/IC57001(+3.3V)
IC55006/IC57001(+3.3V)
IC50001/IC50002/
IC50004(+3.3V)
IC50004(+3.3V)
(+1.2V)
IC59504
ON
D+3.8V
48,50
P7402
P59001
ANA+3.3V
D+3.3V
44
P7402
P59001
30
P7402
P59001
22
P7402
P59001
ANA+5V
64
P7402
P59001
D+1.2V
52,54,56,58,60,62
P59001
P7402
18
P59001
P7402
13
MAIN P.C.B.
AU+5V
BOOTHER+5V
JC REG+5V
UNREG+38V
IC54402(+5V)
P59001
P7402
2,4
DR+12V
P59001
P7402
2
IP50001
1
QR59501,
59502
59502
IC50003(+12V)
10,12
DR+5V
P59001
P7402
2
IP50002
1
IC50002/IC50003(+5V)
H
VIN
8
5
1
VOUT
(REG.D+3.3V)
IC59506
ON H
IC50001/IC53202/
IC53203(+2.5V)
IC53203(+2.5V)
VIN
1
2
3
VOUT
(REG.D+2.5V)
IC59505
ON H
A
B
C
D
E
F
H
G
DMR-ES15EB/EP/EC/EG/EBL
Power Supply Block Diagram
Power Supply Block Diagram
DMR-ES15EB/EP/EC/EG/EBL
Power Supply Block Diagram
Power Supply Block Diagram
35
Except(EG)
6
3
IC7301- / /
IC7302
1
3
VDD
OUT
(RESET)
26
IC7301-
DMR-ES15EB / DMR-ES15EP / DMR-ES15EC / DMR-ES15EG / DMR-ES15EBL
36
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