PD-42DV2, PD-42DV2/S
STANDARD CIRCUIT DIAGRAM
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!
! !
NOTE ON USING CIRCUIT DIAGRAMS
Type
1. SAFETY
The components identified by the
are critical for safety. For continued safety replace safety
critical components only with manufactures
recommended parts.
!!
! symbol and shading
!!
2. SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under
the following conditions.
(1) Input signal : Colour bar signal
(2)
Setting positions of each knob/button and
variable resistor
(3) Internal resistance of tester : DC 20kΩ/V
(4) Oscilloscope sweeping time : H ⇒ 20µs/div
(5) Voltage values : All DC voltage values
: Original setting position when
shipped
:V ⇒ 5ms/div
: Others ⇒ Sweeping time is
specified
∗Since the voltage values of signal circuit vary to some extent
according to adjustments, use them as reference values.
3. INDICATION OF PARTS SYMBOL [EXAMPLE]
In the PW board : R1209 → R209
•
4. INDICATIONS ON THE CIRCUIT DIAGRAM
(1) Resistors
Resistance value
•
No unit : [Ω]
k:[kΩ]
M:[MΩ]
Rated allowable power
•
No indication : 1/16 [W]
Others : As specified
Type
•
No indication : Carbon resistor
OMR : Oxide metal film resistor
MFR : Metal film resistor
MPR : Metal plate resistor
UNFR : Uninflammable resistor
FR : Fusible resistor
∗Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(2) Capacitors
Capacitance value
•
1 or higher : [pF]
less than 1 : [µF]
Withstand voltage
•
No indication : DC50[V]
AC indicated : AC withstand voltage [V]
Others : DC withstand voltage [V]
∗Electrolytic Capacitors
47/50[Example] : Capacitance value [µF]/withstand voltage[V]
•
No indication : Ceramic capacitor
MY : Mylar capacitor
MM : Metalized mylar capacitor
PP : Polypropylene capacitor
MPP : Metalized polypropylene capacitor
MF : Metalized film capacitor
TF : Thin film capacitor
BP : Bipolar electrolytic capacitor
TAN : Tantalum capacitor
(3) Coils
No unit : [µH]
Others : As specified
(4) Power Supply
∗Respective voltage values are indicated
(5) Test point
(6) Connecting method
(7) Ground symbol
: LIVE side ground
: ISOLATED(NEUTRAL) side ground
: EARTH ground
: DIGITAL ground
5. NOTE FOR REPAIRING SERVICE
This model’s power circuit is partly different in the GND. The difference
of the GND is shown by the LIVE : ( ) side GND and the ISOLATED
(NEUTRAL) : ( ) side GND. Therefore, care must be taken for the
following points.
(1) Do not touch the LIVE side GND or the LIVE side GND and the
ISOLATED (NEUTRAL) side GND simultaneously. If the above
caution is not respected, an electric shock may be caused.
Therefore, make sure that the power cord is surely removed
from the receptacle when, for example, the chassis is pulled
out.
(2)Do not short between the LIVE side GND and ISOLATED
(NEUTRAL) side GND or never measure the LIVE side GND and
ISOLATED (NEUTRAL) side GND at the same time with a measuring
apparatus (oscilloscope, etc.). If the above precaution is not
respected, a fuse or any parts will be broken.
♦
Since the circuit diagram is a standard one, the circuit
and circuit constants may be subject to change for
improvement without any notice.
NOTE
♦
Due improvement in performance, some part numbers
show in the circuit diagram may not agree with those
indicated in the part list.
When ordering parts, please use the numbers that
appear in the Parts List.
:B1
: B2(12V)
:9V
:5V
: Test point
: Only test point display
: Connector
: Wrapping or soldering
: Receptacle
CONTENTS
USING P.W. BOARD .......................................................................................................................................... 2-3
SEMICONDUCTOR SHAPES ....................................................................................................................... 2-3
BLOCK DIAGRAM - 1 ........................................................................................................................................ 2-4
BLOCK DIAGRAM - 2 ........................................................................................................................................ 2-5
CIRCUIT DIAGRAMS [RECEIVER UNIT]
MAIN PWB CIRCUIT DIAGRAM ............................................................................................................................ 2-7
AV SWITCH PWB CIRCUIT DIAGRAM .............................................................................................................. 2-15
AV JACK PWB CIRCUIT DIAGRAM ................................................................................................................... 2-17
DIST RELAY PWB CIRCUIT DIAGRAM ............................................................................................................. 2-19
DIST PWB CIRCUIT DIAGRAM ........................................................................................................................... 2-21
MI-COM PWB CIRCUIT DIAGRAM ..................................................................................................................... 2-39
MI-COM INTERFACE PWB CIRCUIT DIAGRAM............................................................................................... 2-41
RECEIVER POWER PWB CIRCUIT DIAGRAM ................................................................................................. 2-43
FRONT CONTROL PWB CIRCUIT DIAGRAM .................................................................................................. 2-45
CIRCUIT DIAGRAMS [DISPLAY UNIT]
DISPLAY INTERFACE PWB CIRCUIT DIAGRAM ............................................................................................. 2-47
AUDIO PWB CIRCUIT DIAGRAM ....................................................................................................................... 2-57
TEMP. SENSOR PWB CIRCUIT DIAGRAM ....................................................................................................... 2-60
DISPLAY LED PWB CIRCUIT DIAGRAM ........................................................................................................... 2-61
DISPLAY SWITCH PWB CIRCUIT DIAGRAM .................................................................................................. 2-62
LINE FILTER PWB CIRCUIT DIAGRAM ............................................................................................................. 2-63
PATTERN DIAGRAMS [RECEIVER UNIT]
MAIN PWB PATTERN............................................................................................................................................ 2-65
AV SWITCH PWB PATTERN ................................................................................................................................ 2-69
AV JACK PWB PATTERN ..................................................................................................................................... 2-71
FRONT CONTROL PWB PATTERN .................................................................................................................... 2-73
DIST RELAY PWB PATTERN ............................................................................................................................... 2-73
DIST PWB PATTERN ............................................................................................................................................ 2-75
MI-COM PWB PATTERN ....................................................................................................................................... 2-79
MI-COM INTERFACE PWB PATTERN ................................................................................................................ 2-80
RECEIVER POWER PWB PATTERN .................................................................................................................. 2-81
PATTERN DIAGRAMS [DISPLAY UNIT]
DISPLAY INTERFACE PWB PATTERN .............................................................................................................. 2-83
AUDIO PWB PATTERN ......................................................................................................................................... 2-85
LINE FILTER PWB PATTERN .............................................................................................................................. 2-87
TEMP. SENSOR PWB PATTERN......................................................................................................................... 2-88
DISPLAY LED PWB PATTERN ............................................................................................................................ 2-88
DISPLAY SWITCH PWB PATTERN .................................................................................................................... 2-88
VOLTAGE CHART [RECEIVER UNIT] .................................................................................................. 2-89
VOLTAGE CHART [DISPLAY UNIT] ....................................................................................................... 2-92
WAVEFORMS ....................................................................................................................................................... 2-94
No. YA018
2-1 2-2
No. YA018
USING P.W. BOARD
BLOCK DIAGRAM -1
RECEIVER UNIT [TU-42DV2, TU-42DV2/S]
MAIN P.W. BOARD LCA10335-05A (SMK-1304A)
AV SWITCH P.W. BOARD LCA90221-02A (SMK-0S04A)
AV JACK P.W. BOARD LCA90250-01A (SMK-0J04A)
DIST RELAY P.W. BOARD LCA90071-03B (SMK-0Z312A)
DIST P.W. BOARD LCA10336-02B (SMK-0Z306A)
MI-COM P.W. BOARD LCA20002-05C (SMK-0M303A)
MI-COM INTERFACE P.W. BOARD LCA90216-03A (SMK-0M312A)
RECEIVER POWER P.W. BOARD LCA90066-03C (SMK-9302A)
FRONT CONTROL P.W. BOARD LCA90065-03C (SMK-8302A)
DISPLAY UNIT [VM-42DV2, VM-42DV2/S]
DISPLAY INTERFACE P.W. BOARD LCA10288-06E (SMK-7368A)
AUDIO PWB P.W. BOARD LCA90177-04D (SMK-6067A)
TEMP. SENSOR P.W. BOARD LCA90146-03B (SMK-8381A)
DISPLAY LED P.W. BOARD LCA90147-02B (SMK-0L268A)
DISPLAY SWITCH P.W. BOARD LCA90148-03C (SMK-0L367A)
LINE FILTER P.W. BOARD LCA90143-08E (SMK-9268A)
SEMICONDUCTOR SHAPES
BOTTOM V IEW
E
C
B
ECB
(G)(D)(S )
BCE
FRONT VI EW
ECB
ECB
TOP VIEW
CHIP TR
C
BE
LIN+/RIN+/-
MAIN CV/Y
MAIN C
MAIN
Y/RY/BY
MAIN
HD/VD
SUB CV/Y
SUB C
SUB
Y/RY/BY
SUB
HD/VD
IC701
MAIN
CHROMA
DECODE
IC801
SUB
CHROMA
DECODE
SEPARATOR
CVBS
Y/C
DIST PWB
CVBS
CVBS
IC251
3D Y/C
Y/C
3L COMB
YCC
YCY
IC802
FILTER
IC702
3L COMB
FILTER
Y/C
IC703
Y/C SW
L/R
IC
B OT TO M V I EW FR O NT V I EW T OP V I EW
OUT
E
IN
IN OUTE
1 N
1 N
CHIP IC
TOP VIEW
N
N
N
1
N
1
N
10
1
N
MAIN
Y/RY/BY
MAIN
HD/VD
IC001
3D NR
&
A-D
CONVERTOR
IC005
13.5M
MAIN HD/VD
Y/C
8
Y/PB/PR
8
27M
IC101
DIST
PROCESSOR
SDRAM
SUB HD/VD
SUB
Y/RY/BY
IC003
SUB
HD/VD
HD/
VD
A-D
CONVERTOR
IC102
FRAME
VD
MEMORY
Y
PB
PR
ADDRESS
DATA
10
10
DIGITAL
ENHANCE
IC461
COLOUR
MANAGEMENT
COMPOSITION
CONVERTOR
IC201
1010
&
OSD
IC501
A-D
YPBPR
10
IC901
DVI
FORMAT
CONVERTOR
&
ENCRYPTION
IC602
RS-232C
DRIVER
TMDS_DATA0_N,P
TMDS_DATA1_N,P
TMDS_DATA2_N,P
TMDS_CLK_N,P
TXD/
RXD
No. YA018
2-3 2-4
No. YA018
OSD_R/G/B
TXDO/RXDO