Sylvania DVR90VE, E9410UD Schematic
SUPPLEMENT
SERVICE MANUAL
This service manual shows only the differences between
the model DVR90VE and the original model EWR20V4.
All other information is described in the service manual
of the model EWR20V4.
DVD RECORDER &
VIDEO CASSETTE RECORDER
DVR90VE
OPEN/CLOSE
PLAYREWPOWER F.FWD STOP/EJECT
VCR
RECORD
CHANNEL
DUBBING
OUTPUT SELECT
VCR DVD
STOP PLAY
RECORD
DVD
S-VIDEO VIDEO L - AUDIO - R
IMPORTANT SAFETY NOTICE
Proper service and repair is important to the safe, reliable operation of all
Funai Equipment. The service procedures recommended by Funai and
described in this service manual are effective met hods of performing service
operations. Some of these service special tools should be used when and as
recommended.
It is important to note that this service manual contains various CAUTIONS
and NOTICES which should be carefully read in or der to minimize the risk of
personal injury to service personnel. The possibility exists that improper service methods may damage the equipment. It also is important to understand
that these CA UTIONS and NOTICES ARE NO T EXHAUS TIVE. Funai could not
possibly kno w, ev aluate and advice the service trade of all conceiv able ways
in which service might be done or of the possible hazardous consequences
of each way . Consequently , Funai has not undertaken an y such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is
not recommended by Funai m ust first use all precautions thor oughly so that
neither his safety nor the safe operation of the equipment will be jeopardized
by the service method selected.
TABLE OF CONTENTS
Block Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1-1
Schematic Diagrams / CBA’s and Test Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2-1
Wiring Diagram < VCR Section > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-1
Wiring Diagram < DVD Section > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-2
Different parts from original model (EWR20V4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-1
Manufactured under license from Dolby Laboratories. "Dolby" and
the double-D symbol are trademarks of Dolby Laboratories.
Digital Signal Process Block Diagram
TO VIDEO
INPUT SELECT
AD22,AF24
AC21,AB18,
BLOCK DIAGRAM
S-CLK
IC9-RESET
E25
AD21
S-CLK
IC9-RESET
SCL
Y4
SCL
SDA
AD2
SDA
SPDIF
VIDEO-Y(I)
AC12
Y(I)
D/A
TO VIDEO
OUTPUT SELECT
VIDEO-C
VIDEO-Y(I/P)
AE12
AC13
Y
C
D/A
D/A
VIDEO
ENCODER
BLOCK DIAGRAM
VIDEO-Cb
AD12
Cb
D/A
VIDEO-Cr
AE13
Cr
D/A
VID(0-7)
AC19,AE22,
AE23,AC20,
AB23
BCK
AUDIO
DATA
AD25
I/F
AC25
LRCK
AB22
MD
H24
MD
MC
J22
MC
ML
J23
ML
TO AUDIO
INPUT/OUTPUT
SELECT
BLOCK DIAGRAM
SCK
AB19
AC23
SCK
SYSCLK
LRCK
AB20
BCK
AB21
AUDIO
DATA
SYSCLK
DVD BE MAIN CBA UNITDVD FE MAIN CBA UNIT
AD24
I/F
FLASH MEMORY
DDR SDRAM
REC VIDEO SIGNAL PB VIDEO SIGNAL REC AUDIO SIGNAL PB AUDIO SIGNAL
IC3 (MAIN MICRO CONTRLLER)IC5301
VIDEO
I/F
CN1CN5301
BACK-END
DIGITAL
SIGNAL
FRONT-END
PROCESS
DIGITAL
SIGNAL
PROCESS
IC6 (FLASH MEMORY)
IC5401
IC1,IC2 (DDR SDRAM)
SDRAM
DVD MECHA
DVD MECHA & FE ASSEMBLY
IC5202
RF/
ERROR AMP
CN5101
TILT
PICK
IC5501
TRACKING
-UP
FOCUS
MOTOR
DRIVER
CN5603B
SLED
MOTOR
M
CN5502B
LOADING
MOTOR
FLASH
MEMORY
FRONT-END
MICRO
CN5602B
TRAY
CLOSE
TRAY
OPEN
CONTROLLER
LOADER CBA
IC5704
IC5503
MOTOR
CN5501
SPINDLE
MOTOR
DRIVER
M
E9410BLD
IC5703
CN5603
M
FE
ENCODER
ENCODER CBA
1-1-1
Video Output Select Block Diagram
JK1401
S-VIDEO
OUT
VIDEO-Y
OUT
VIDEO-Cb
OUT
VIDEO-Cr
OUT
COMPOSITE
VIDEO OUT
REC VIDEO SIGNAL PB VIDEO SIGNAL
IC1404 (VIDEO DRIVER)
5
2dB
AMP
LPF DRIVER
4dB
AMP
3
6
DRIVER
8dB
AMP
-6dB
7
2dB
AMP
LPF DRIVER
4dB
AMP
1
2
1
3 4
YC
15
14
13
DRIVER
2dB
AMP
8dB
AMP
2dB
AMP
-6dB
LPF DRIVER
4dB
AMP
IC1405 (VIDEO DRIVER)
3
LPF DRIVER
4dB
AMP
1
11
2dB
AMP
LPF DRIVER
4dB
AMP
6
10
DRIVER
2dB
AMP
LPF
4dB
AMP
8
JK1403
MUTE
TO SUB SYSTEM
V-MUTE
5
CONTROL
BLOCK DIAGRAM
WF6
WF1
IC1406
R1402
R1410
(OUTPUT SELECT)
JK751
TP751
V-OUT
BUFFER
Q391
2151
DVD-VIDEO(DUB)
PB/EE-VIDEO
(DVD VCR DUBBING)
TO VIDEO
BLOCK DIAGRAM
VIDEO-IN
TU900 (TUNER UNIT)
6
WF12
109 11
SW CTL
OUTPUT-SELECT
TO SERVO/SYSTEM CONTROL
BLOCK DIAGRAM
WF4
CN201
11VIDEO-Y(I)
CN7
VIDEO-Y(I/P)
VIDEO-Y(I)
WF8
WF7
WF5
14
VIDEO-Y(I/P)
14
16 16VIDEO-C
12 12VIDEO-Cb
10 10VIDEO-Cr
VIDEO-C
VIDEO-Cb
VIDEO-Cr
TO DIGITAL SIGNAL
PROCESS BLOCK
DIAGRAM
1-1-2
DVD BE MAIN CBA UNIT MAIN CBA
E9410BLVOS
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS
Standard Notes
WARNING
Many electrical and m echanical parts in this chassis
have special characteristics. These characteristics
often pass unnoticed and the protection afforded by
them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage,
etc. Replacement par ts that have these specia l safety
characteristics are identified in this manual and its
supplements; electr ical components having such features are identified by the mark " # " in the schematic
diagram and the parts list. Before replacing any of
these components, read the par ts list in this manual
carefully. The use of substi tute replac ement par t s that
do not have the same safety characteristics as specified in the parts list may create shock, fire, or other
hazards.
Notes:
1. Do not use the part number shown on these drawings for ordering. The correct part number is shown
in the parts list, and may be slightly different or
amended since these drawings were prepared.
2. All resistance values are indicated in ohms
3
(K=10
3. Resistor wattages are 1/4W or 1/6W unl ess otherwise specified.
4. All capacitance values are indicated in µF
(P=10
5. All voltages are DC voltages unless otherwise
specified.
, M=106).
-6
µF).
1-2-1 W1-SC
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