JVC XV-N420B, XV-N422S Schematics
SCHEMATIC DIAGRAMS
DVD PLAYER
XV-N420B,XV-N422S
CD-ROM No.SML200502
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789
CANCEL RETURN
0
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XV-N420BUSC,XV-N420BUCC,XV-N422SUSC,XV-N422SUCC
COPYRIGHT 2005 Victor Company of Japan, Limited
No.YD054SCH
2005/2
CHARTS AND DIAGRAMS
NOTES OF SCHEMATIC DIAGRAM
Safety precautions
The Components indentified by the symbol are
critical for safety. For continued safety, replace safety
critical components only with manufacturer's recommended parts.
1. Units of components on the schematic diagram
Unless otherwise specified.
1) All resistance values are in ohm. 1/6 W, 1/8 W (refer to
parts list).
Chip resistors are 1/16 W.
K: KΩ(1000Ω), M: MΩ (1000KΩ)
2) All capacitance values are in µF, (P: PF).
3) All inductance values are in µH, (m: mH).
4) All diodes are 1SS133, MA165 or 1N4148M (refer to parts
list).
Note: The Parts Number, value and rated voltage etc. in
the Schematic Diagram are for references only.
When replacing the parts, refer to the Parts List.
2. Indications of control voltage
AUX : Active at high.
AUX or AUX(L) : Active at low.
!
4. Voltage measurement
1) Regulator (DC/DC CONV) circuits
REC : Colour bar signal.
PB : Alignment tape (Colour bar).
— : Unmeasurable or unnecessary to measure.
2) Indication on schematic diagram
Voltage indications for REC and PB mode on the schematic diagram are as shown below.
REC mode
12 3
2.5
(5.0)
PB mode
1.8
PB and REC modes
(Voltage of PB and REC modes
are the same)
Note: If the voltages are not indicated on the schematic
diagram, refer to the voltage charts.
6. Indication of the parts for adjustments
The parts for the adjustments are surrounded with the circle
as shown below.
3. Interpreting Connector indications
1
2
Removable connector
3
1
2
Wire soldered directly on board
3
1
Non-removable Board connector
2
3
1
2
4
Board to Board
3
Connected pattern on board
The arrows indicate signal path
Note: For the destination of each signal and further line
connections that are cut off from the diagram,
refer to "BOARD INTERCONNECTIONS"
7. Indication of the parts not mounted on the circuit board
“OPEN” is indicated by the parts not mounted on the circuit
board.
R216
OPEN
Block diagram
5
4
Spindle motor
3
2
FROM
Pick-up
Unit
FROM
assembly
A B C D E F RF
CN101
CDPD DVDPD
T+ TF+ F-
WOUT
VOUT
UOUT
COM
FM+
FM-
CN201 CN202
TRVSW
CLOSESW OPENSW
LM+
LM-
X301
FEP
(Front end processor)
IC101
SVREF
4CH Driver
IC201
FODRV
TRDRV
TRSDRV
OPEN
FG SPDRV
RPBC
AMPSTBY
(
Super optical disc controller
VID_XO
VID_XI
64M SDRAM
IC302
DFCT
BSUM
FE CE
MINTR
SCLK
S DATA
SDEN
INB IN
TE
SODC
and
AV Decoder
IC301
LA0 to LA20
LWRL LOE
LCS3 LD0 to LD7
Flash ROM
AOUTL+ AOUTR+
2CH DAC
IC403
)
IC303
SPDIF
AOUTLAOUTRYOUT
Cb/Pb
Cr/Pr
COUT
C/Cv/Y
AVC
STBY
REMO
FLDIN
CLK
STB
CN302
CN303CN301
COMPULINK
AV
AC IN
CN905
AVCJ901
Line filter
L901
Switching
regulator
IC901
AC-DC
D903
AC-DC
D906
C909
FEED BACK
PC901
Powe r
transformer
T901
AC-DC
D951,C950
AC-DC
D952,C982
AC-DC
D955,C954,L952
AC-DC
D954,C955,L953
AC-DC
D953,C983,L951
AC-DC
D956,L954,C957,C985
AC-DC
D957,L955,C956,C966
SPDIF
AOUTL+/- AOUTR+/-
Operation switch
S501 to S508
IC704
-12V
+12V
C
Y
PbOUT
PrOUT
C/Cv/Y
OP.Amplifier
IC701
Q951
Q952
L702
L707
L706
L730
L709
L701
SG1 to SG4
AUDIOL/R
K1,K2
-VDISP
B3.3V
REMO
FLDIN
CLK
STB
B5.7V
M9V
B3.3V
STBY
F+
J602
S-VIDEO output
Coaxial digital
output
J601
Y
Pb
Pr
F-
Component
video output
Composite
video output
Analog
audio output
CN901CN902CN903
CN1
Tray switch
S1
FL Display driver
1
Loading motor
A
BCD EFG
Tray illumination
D1 D2
CN4
2-1 2-2
CN503
IC501
GR1 to GR7
SG1 to SG9
K1 K2 SG1 to SG4 -VDISP STB FLDIN CLK
FL Display
DI501
Remote controller
IC502
F+ F-
CN501
REMO
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