DOWNLOAD Panasonic DMR-EH68EC / DMR-EH68EP / DMR-EH685EG Service Manual ↓ Size: 4.55 MB | Pages: 102 in PDF or view online for FREE

Model
DMR-EH68EC DMR-EH68EP DMR-EH685EG
Pages
102
Size
4.55 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD / DVD RECORDER
File
dmr-eh68ec-dmr-eh68ep-dmr-eh685eg.pdf
Date
PREV: Panasonic DMR-EH67EC / DMR-EH67EP / DMR-EH67EE / DMR-EH675EG Service Manual

Panasonic DMR-EH68EC / DMR-EH68EP / DMR-EH685EG Service Manual ▷ View online

11.2. Analog Video Block Diagram
(SW17C)
a
b
(SW17V)
a
b
(SW17Y)
a
b
DMR-EH68EC/EP,EH685EG
Analog Video Block Diagram
V/Y IN DM
CPN CIN DM
MAIN P.C.B.
1.0V
2.3V
5V
:PB SIGNAL
:REC SIGNAL
CLAMP
V
TUNER
30
INTERLACE
PROGRESSIVE/
VIDEO OUT
COMPONENT
Y
PB
PR
1
4
JK3903
3
2
RED/C
15
VIDEO/Y
19
GREEN
11
(TV)
AV1
BLUE
7
21PIN JACK
JK3901
OUT
C
Y
S-VIDEO
JK3001
3
4
OUT
VIDEO OUT
JK3001
15
14
(DECODER/EXT)
AV2
VIDEO
19
21PIN JACK
JK3901
U/V TUNER
TU7802
17
OUT
VIDEO
DIGITAL P.C.B.
TO
P59001
P7402
71
75
P7402
P59001
P59001
P7402
83
88
P7402
P59001
P59001
P7402
84
87
P7402
P59001
LOGIC
IIC BUS
SDA
89
SCL
88
SECTION
TIMER
FROM/TO
IIC DATA
IC7501- 30
29
IC7501-
IIC CLK
B
Q7501,Q7503-
SLICER
(SW10)
CLAMP
CLAMP
CLAMP
CLAMP
BIAS
CLAMP
SLICER
85
OUT
ADC
V/Y
83
OUT
C-ADC
81
TUNER V
AV2 V/Y
AV2 R/C
AV3 V
AV3 C
AV3 Y
AV1 V
CIRCUIT
SWITCH
SELECT
OUTPUT
ADC
OUT
V
AV2
28
SV2
e
d
c
b
a
OUT
V/Y/C
AV1
26
SV1
e
d
c
b
a
a
b
(SW9)
OUT
V
24
23
a
b
(SW8)
OUT
C
22
(SW7)
a
b
OUT
Y
20
19
OUT
G
AV1
17
6MHz
(SW5)
12MHz
a
b
c
15
OUT
Y
COMP
14
(SW6)
a
b
c
d
OUT
B
AV1
12
OUT
B-Y
COMP
11
6MHz
(SW4)
12MHz
a
b
c
d
OUT
R-C
AV1
9
(SW3)
a
b
c
(VIDEO PROCESSOR)
IC3001
OUT
R-Y
COMP
7
(SW2)
a
b
c
(SW1)
12MHz
6MHz
CLAMP
BIAS
CLAMP/
CLAMP
BIAS
CLAMP/
+
LPF
6MHz
CLAMP
BPF
6MHz
BIAS
a
b
CLAMP
BIAS
c
b
a
AV2 V/Y
AV2 B
AV2 G
AV2 R/C
AV3 V
AV3 C
AV3 Y
AV1 V
AV2 V/Y
< B >
< RGB CPSV >
< R >
< G >
AV2 B
AV2 G
AV2 R/C
AV3 V
AV3 C
AV3 Y
31
5
3
1
(DECODER/EXT)
AV2
VIDEO/Y
BLUE
GREEN
RED/C
20
7
11
15
21 PIN JACK
JK3901
VIDEO IN
37
S-VIDEO IN
45
AV3
JK3003
FRONT JACK
AV3
JK3002
FRONT JACK
41
2
1
4
3
2
1
4
3
33
99
97
95
93
91
AV1 VIDEO
(TV)
AV1
20
21 PIN JACK
JK3901
FROM
DIGITAL P.C.B.
BPBOUT DM
GPYOUT DM
RPROUT DM
Y OUT DM
C OUT DM
P59001
67
P7402
P7402
P59001
63
59
P59001
P7402
51
P59001
P7402
55
P7402
P59001
< R >
< B >
< RGB CPSV >
< G >
DMR-EH68EC / DMR-EH68EP / DMR-EH685EG
49
11.3. Analog Audio Block Diagram
DMR-EH68EC/EP,EH685EG
Analog Audio Block Diagram
OUT
(SA4L)
SELECT SWITCH
OUTPUT
AV2
(DECODER/EXT)
(TV)
AV1
1.0V
5V
2.3V
:PB SIGNAL
:REC SIGNAL
IEC OUT
1
(DIGITAL AUDIO OUT)
OPTICAL
IC4901
P.C.B.
DIGITAL
FROM
P59001
P7402
44
AADC L
AADC R
AUDIO OUT Ch1(L)
AUDIO OUT Ch2(R)
MIX L OUT2
MIX R OUT2
AUDIO OUT Ch2(R)
AUDIO OUT Ch1(L)
REAR JACK
JK3001
(R)
LINE OUT
(L)
LINE OUT
21
20
17
18
P.C.B.
DIGITAL
TO
P7402
31
P59001
P7402
P59001
29
(DECEODER/EXT)
AV2
1
3
(TV)
AV1
3
1
21 PIN JACK
JK3901
LOGIC
IIC BUS
SDA
89
88
SCL
SECTION
TIMER
FROM
30
IC7501-
IIC DATA
29
IC7501-
IIC CLK
71
AV1 Lch
78
ADC Lch
73
AV2 Lch
74
AV2 Rch
79
ADC Rch
AV1 Rch
72
LPF
BUFF.
MUTE
AGC
AMP
ADC Lch
LPF
BUFF.
MUTE
LPF
BUFF.
MUTE
d
c
b
a
MUTE
BUFF.
LPF
AMP
ADC Rch
AGC
U/V TUNER
TU7802
SIF OUT 6
(NICAM/A2)
IC7301
SIF
L OUT
R OUT
12
7
18
TUN Lch
62
54
TUN Rch
BUFF.
e
d
c
b
a
(SA1L)
e
d
c
b
a
(SA3L)
e
d
c
b
a
(SA2L)
58
AV3 Lch
(FRONT)
AV3
FRONT INPUT JACK
JK3002
AUDIO
(Lch/MONO)
LINE
(Rch)
LINE
3
4
5
6
7
d
c
b
a
(SA4R)
SELECT SWITCH
OUTPUT
AV3 Rch
50
BUFF.
e
d
c
b
a
(SA2R)
AUDIO IN ch1(L)
AUDIO IN ch2(R)
AUDIO IN ch1(L)
AUDIO IN ch2(R)
21 PIN JACK
JK3901
6
2
6
2
AV2 Lch
61
AV2 Rch
53
AV1 Lch
AV1 Rch
DAC Lch
DAC Rch
60
52
e
d
c
b
a
(SA3R)
e
d
c
b
a
(SA1R)
(AUDIO SIGNAL PROCESSOR)
IC3001
64
56
Q4008
D4006
Q4009
MUTE
MUTE
D4005
Q4007
Q4006
MUTE
MUTE
(BUFFER)
IC4009
6
7
1
2
MIX L OUT DM
MIX R OUT DM
P.C.B.
DIGITAL
FROM
P59001
P7402
39
41
P7402
P59001
16
IC54402-
XDMUTE
P.C.B.
DIGITAL
FROM
Q54401,
Q4060
DRIVE
XDMUTE
(AUDIO MUTE DRIVE)
QR4002
SECTION
TIMER
FROM
65
IC7501-
XTMUTE
MAIN P.C.B.
DMR-EH68EC / DMR-EH68EP / DMR-EH685EG
50
11.4. Analog Timer Block Diagram
X SW+12.4V
3
P7502
1
P7502
FAN MOTOR
M
(FAN MOTOR DRIVE)
Q7511
FANDCOUT
H
H
H
H
H
H
H
L
L
L
H
H
H
L
VEE 30
-33V
5
1
IC1506-
etc.
MAIN P.C.B.
P SAVE
G SBMTP A
G SBPTM A
G SCLK A
21
P7402-
SBMTP
43
IC7501-
TU P ON
TBUS RXD
TBUS TXD
TU P ON
3
IC1510-
B
B
QR1501-
,QR1503-
DR P ON
XTMUTE
VSS
12
D7506
QR7402
Q7403
(     :ON)
UNREG.+38V
to TU7802-        
(BTL+30V) 
POWER SAVE
61
(      :ON)
QR7508
(      :OFF)
Q7510
X SW+12.4V
(IC PROTECTOR)
IP7501
2
1
VDD
13
VDD
43
DOUT
6
FL CS
45
STB
9
14
T7501
TRANSFORMER
POWER SWITCHING
DISPLAY HEATER
6
7
GND
+38V
HEATER-
+B
HEATER+
8
3
1
9
FRONT(L) P.C.B.
HDMI P.C.B.
S7701
POWER
PLAY
73
87
88
PFAIL
XRESET
4
VIN
IC7503
5V DET
OUT
RESET
X SW+5.8V
X SW+5V
7
XSW5V
OUT
(RESET/SW REG.)
CTL.
GND
VDD
19
15
X SW+5V
KEY IN3
KEY IN2
FL TXD
5
DISPLAY
TIMER
DP7501
F-
F+
1
45
B
DIGITAL P.C.B.
TO/FROM
9 SCL
36
FAN PWM OUT 22
FAN LOCK  H 39
TBUS CLK
35
37
P7402-
SCLK
P7402-
SBPTM
DR POWER ON
42
IR
KEY IN1
QR4002-
XT MUTE
85
IC3001-
SLICER VIDEO
KEY IN3
HDMI-MONI
HDMI-CONT
KEY IN2
Q7501
Q7503
10
P7501
P56101
6
P7501
P56101
5
FRONT (R) P.C.B.
P7503
PP7201
S7201
OPEN/
CLOSE
3
P7503
PP7201
1
P7001
PP7701
1
P7503
PP7201
2
33
32
30
29
IIC DATA
IIC CLK
DMR-EH68EC/EP,EH685EG
Timer Block Diagram
POWER SUPPLY SECTION
TO
TU POWER ON
DI POWER ON
43
44
P OFF
U/V TUNER
TU7802
SDA
XIN
CEC INT
CEC OUT
XOUT
15
13
10MHz
X7501
XCOUT
XCIN
11
10
32.768KHz
X7502
(NICAM/A2)
IC7301
SDA
SCL
IIC DATA
IIC CLK
BUFFER
Q7505
FAN MOTOR
DRIVE
Q7509
BUFFER
BUFFER
CVIN1
SYNC IN
IC7504
(DISPLAY DRIVE)
FL CLK
CLK
DIN
7
8
7
S7507
S7506
STOP
S7504
REC
IC7501
(TIMER)
IC7701
1
3
2
SG1
REMOTE CTL.
KEY IN1
3.3V OFF H
65
98
89
14
SG2 15
SG3 16
SG4 17
SG5 18
SG6 19
SG7 20
SG8 21
SG9 22
SG10 23
SG11 24
SG12 25
SG13 26
SG14 27
SG15 28
SG16 29
GR1 42
GR2 41
GR3 40
GR4 39
GR5 38
GR6 37
P1
41
P2
40
P3
37
P4
36
P5
34
P6
33
P7
32
P8
30
P9
29
P10
27
P11
26
P12
23
P13
13
P14
11
P15
9
P16
7
2G
28
3G
25
4G
22
5G
18
6G
15
7G
10
3
ANALOG A/V SECTION
TO/FROM
S7501
QR7507
CH-DOWN
S7503
CH-UP
RECEIVER
REMOTE CONTROL
8
5
12
20
78
D7505
86
91
DMR-EH68EC / DMR-EH68EP / DMR-EH685EG
51
11.5. HDMI Block Diagram
24
10
22
20
18
16
14
12
121
120
7
6
4
3
1
12
13
10
9
JK56101
L56101
L56102
L56103
L56104
JK56101
JK56101
JK56101
JK56101
JK56101
JK56101
JK56101
JK56101
TX2P
TX2M
TX1P
TX1M
TX0P
TX0M
TXCP
TXCM
16
15
JK56101
3V-5V
Conv.
3V-5V
Conv.
JK56101
HDMI SDA
HDMI SCL
D2+
HDMI
CONNECTOR
D2-
D1+
D1-
D0+
D0-
CLK+
CLK-
CEC
Q56103
Q56102
SCL
SDA
P56101
6
P7501
BUFFER
SWITCHING
HDMI-MONI
HDMI-CONT
Q56001,2
Q56104
Q56105
P56101
5
P7501
DMR-EH68EC/EP,EH685EG
HDMI Block Diagram
HSDA
HSCL
38
37
36
35
43
92
90
89
95
94
93
88
87
D0
D1
D2
D3
D4
D5
D6
D7
AMSDI0
AMSDI1
AMSDI2
AMSDI3
AMRX
(HDMI TRANSMITTER)
IC56103
114
113
15
30
29
28
27
12
13
14
P56103
P55003
P56103
P55003
P56103
P55003
P56103
P55003
P56103
P55003
8
3
4
5
6
P56103
P55003
P56103
P55003
P56103
P55003
P56103
P55003
P56103
P55003
20
19
P56103
P55003
P56103
P55003
P56103
P55003
P56103
P55003
P56103
P55003
FROM/TO
DIGITAL
P.C.B.
VIDEO PB SIGNAL
AUDIO EE SIGNAL
AUDIO PB SIGNAL
VIDEO EE SIGNAL
DMR-EH68EC / DMR-EH68EP / DMR-EH685EG
52
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