DOWNLOAD Sharp LC-30HV4E (serv.man2) Service Manual ↓ Size: 16.95 MB | Pages: 127 in PDF or view online for FREE

Model
LC-30HV4E (serv.man2)
Pages
127
Size
16.95 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-30hv4e-sm2.pdf
Date

Sharp LC-30HV4E (serv.man2) Service Manual ▷ View online

LC-30HV4E
SERVICE MANUAL
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.
CONTENTS
Page
SHARP CORPORATION
LCD COLOUR TELEVISION
»
IMPORTANT SERVICE SAFETY PRECAUTION ..... 2
»
SPECIFICATIONS ................................................ 3
»
OPERATION MANUAL ........................................ 4
»
DIMENSIONS .................................................... 10
»
REMOVING OF MAJOR PARTS ........................ 12
»
ADJUSTMENT PROCEDURES (AVC System) .. 19
»
UPGRADING INSTALLED PROGRAMS ........... 26
»
ADJUSTMENT PROCEDURES (Display) ......... 29
»
MAJOR IC INFORMATIONS .............................. 33
»
TROUBLE SHOOTING TABLE .......................... 52
»
CHASSIS LAYOUT ............................................. 62
»
SYSTEM BLOCK DIAGRAM (AVC System) ...... 66
»
SIGNAL FLOW BLOCK DIAGRAM
(AVC System) ..................................................... 68
Page
»
POWER SYSTEM BLOCK DIAGRAM
(AVC System) ..................................................... 70
»
PC I/F BLOCK DIAGRAM (AVC System) .......... 72
»
SIGNAL BLOCK DIAGRAM (Display) ................ 74
»
POWER UNIT BLOCK DIAGRAM (Display) ...... 76
»
OVERALL WIRING DIAGRAM (AVC System) ... 78
»
OVERALL WIRING DIAGRAM (Display) ............ 82
»
DESCRIPTION OF SCHEMATIC DIAGRAM ..... 84
»
WAVEFORMS .................................................... 85
»
SCHEMATIC DIAGRAM ..................................... 86
»
PRINTED WIRING BOARD ASSEMBLIES ...... 159
»
PARTS LIST ..................................................... 204
»
PACKING OF THE SET ................................... 246
MODEL
LC-30HV4E
1st Edition
2
LC-30HV4E
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SAFETY NOTICE
Many electrical and mechanical parts in Plasma Display
television have special safety-related characteristics.
These characteristics are often not evident from visual
inspection, nor can protection afforded by them be
necessarily increased by using replacement components
rated for higher voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this manual; electrical
components having such features are identified by “ 
å
and shaded areas in the
 Replacement Parts List and
Schematic Diagrams.
For continued protection, replacement parts must be
identical to those used in the original circuit.
The use of a substitute replacement parts which do not
have the same safety characteristics as the factory
recommended replacement parts shown in this service
manual, may create shock, fire or other hazards.
CAUTION:  FOR CONTINUED PROTECTION
AGAINST A RISK OF FIRE REPLACE ONLY WITH
SAME TYPE FUSE.
AVC SIDE: F701 (T2A, 250V), F702 (T2A, 250V),
F1702 (T4AL, 250V) FUSE.
LCD SIDE: F1(T3.15AL, 250V), F6551, F6552, F6553,
F6554, F6555, F6556 (T2.5AL, 250V)
WARNING
1. For continued safety, no modification of any circuit
should be attempted.
2. Disconnect AC power before servicing.
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform
the following safety checks:
1. Inspect all lead dress to make certain that leads are
not pinched, and check that hardware is not lodged
between the chassis and other metal parts in the
receiver.
2. Inspect all protective devices such as non-metallic
control knobs, insulation materials, cabinet backs,
adjustment and compartment covers or shields,
isolation resistor-capacitor networks, mechanical
insulators, etc.
3. To be sure that no shock hazard exists, check for
leakage current in the following manner.
»
Plug the AC cord directly into a 110~240 volt AC outlet,
and connect the DC power cable into the receiver's
DC jack. (Do not use an isolation transformer for this
test).
»
Using two clip leads, connect a 1.5k ohm, 10 watt
resistor paralleled by a 0.15µF capacitor in series
with all exposed metal cabinet parts and a known
earth ground, such as electrical conduit or electrical
ground connected to an earth ground.
»
Use an AC voltmeter having with 5000 ohm per volt,
or higher, sensitivity or measure the AC voltage drop
across the resisor.
»
Connect the resistor connection to all exposed metal
parts having a return to the chassis (antenna, metal
cabinet, screw heads, knobs and control shafts,
escutcheon, etc.) and measure the AC voltage drop
across the resistor.
All checks must be repeated with the AC cord plug
connection reversed. (If necessary, a nonpolarized
adaptor plug must be used only for the purpose of
completing these checks.)
Any reading of 35V peak (this corresponds to 0.7
milliamp. peak AC.) or more is excessive and
indicates a potential shock hazard which must be
corrected before returning the monitor to the owner.
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
IMPORTANT SERVICE SAFETY PRECAUTION
Ë
Service work should be perfomed only by qualified service technicians who are thor-
oughly familiar with all safety checks and the servicing guidelines which follow:
DVM
AC SCALE
50k ohm
10W
0.15 
µ
F
TEST PROBE
4
LC-30HV4E
OPERATION MANUAL
P
a
rt
 names
OPC indicator*
ST
ANDBY/ON indicator
MAIN POWER
button
OPC sensor
Remote contr
ol sensor
indicator
Displa
y
ST
ANDBY/ON button
(
)
INPUT
button
VOLUME buttons
(
/
)
CHANNEL buttons
(CH
/
)
Remote contr
ol sensor
*OPC: Optical Pictur
e Contr
ol
(See Pages 36 and 38.)
INPUT 1 ter
minal
(SCAR
T)
INPUT 3 ter
minals (Y
, P
B
(C
B
)
,
 P
R
(C
R
))
INPUT 2 ter
minal (SCAR
T)
A
V
 OUTPUT ter
minal
(S-VIDEO)
DISPLA
Y OUTPUT1 ter
minal
AC INPUT ter
minal
CLEAR
*
POWER button
RS-232C ter
minal
INPUT 4 ter
minal (S-VIDEO)
PC INPUT ter
minal (AUDIO)
INPUT 4 ter
minals (AUDIO)
INPUT 3 ter
minal (SCAR
T)
A
V
 OUTPUT ter
minal
(VIDEO)
A
V
 OUTPUT ter
minals
(AUDIO)
PC INPUT ter
minal
(ANALOG RGB)
*
If the A
VC System is switched on but it does not appear to be operating corr
ectly
, it may need r
esetting. In this
case, pr
ess 
CLEAR
, shown in the diagram, lightly with the end of a ballpoint pen or other pointed object.
This will r
eset the System as shown below
.
A
V MODE r
esets to ST
ANDARD.
TV channel r
esets to channel 1.
Dual scr
een r
esets to nor
mal.
Audio setting initialises.
SRS r
esets to OFF
.
Image position is initialised.
NO
TE
P
ressing 
CLEAR
 will not work if the System is in standby mode (indicator lights r
ed).
P
ressing 
CLEAR
 will not delete channel pr
eset or passwor
d. See page 60 for clearing the passwor
d when you know it.
See page for initialising to the factor
y pr
eset values when you forget your passwor
d.
ANTENNA INPUT ter
minal
A
VC System
ST
ANDBY/ON indicator
DISPLA
Y OUTPUT2
ter
minal
INPUT 4 ter
minal (VIDEO)
(How to open the door)
Fr
ont vie
w
Rear vie
w
Headphone
DC OUTPUT ter
minal
(T
er
minal for expanded
functionality in the near
futur
e.)
(When connecting headphones,
the sound fr
om the speakers is
muted.)
5
LC-30HV4E
P
a
rt
 names
P
a
rt
 names
1
 (ST
ANDBY/ON)
To
 switch the power on and of
f. 
2
 (FREEZE/HOLD f
or TELETEXT)
TV/Exter
nal input mode: Change the still image mode.
TELETEXT mode: Fr
eeze a multi-page on scr
een while other
pages ar
e automatically updated. Pr
ess 
again to r
etur
n to the
nor
mal image. 
3
 (DU
AL screen)
Set the dual pictur
e mode. Pr
ess 
again to r
etur
n to nor
mal view
.
(See page 61.)
4
 (WIDE MODE/ 
T/B/F)
TV/Exter
nal input mode: Change the wide image mode. 
TELETEXT mode: Set the ar
ea of magnification. (full/upper half/
lower half) 
5
A
V MODE
Select a video setting: A
V
 MODE (ST
ANDARD, DYNAMIC, MOVIE,
GAME, USER), PC MODE (ST
ANDARD, USER) (See page 51.)
6
SOUND
Select the sound multiplex mode.
7
 (SRS and FOCUS)*
Select SRS and FOCUS sound system. 
8
 (Flashbac
k)
Pr
ess to r
etur
n to the pr
evious channel in nor
mal viewing mode.
Pr
ess to r
etur
n to the pr
evious page in TELETEXT mode. 
9
/
 (V
OLUME)
Set the volume. 
10
 (Re
veal hidden f
or 
TELETEXT)
TELETEXT mode: Display hidden characters. 
11
 (SUBP
A
GE f
or 
TELETEXT)
TELETEXT mode: Change the pictur
e mode for sub-page selecting.
12
MENU
Display the MENU scr
een.
13
 (CHANNEL INFORMA
TION)
Display the channel infor
mation and time. 
14
 (INPUT SOURCE)
Select an input sour
ce. (TV
, INPUT 1, INPUT 2, INPUT 3, INPUT 4,
PC) 
15
SLEEP
Set the Sleep timer
16
 (MUTE)
Mute the sound. 
17
0 – 9
TV/Exter
nal input mode: Set the channel.
TELETEXT mode: Set the page.
18
 (Digit f
or c
hannel select)
Change the digits of the selected TV channel. 
19
Colour (RED/GREEN/YELLO
W/BLUE)
TELETEXT mode: Select a page. 
20
CH
/
CH
(
/
)
TV/Exter
nal input mode: Select the channel.
TELETEXT mode: Set the page. 
21
 (T
OP Overvie
w f
or 
TELETEXT)
TELETEXT mode: Display an index page for CEEF
AX/FLOF
infor
mation. TOP Overview for TOP pr
ogramme.
22
 (TELETEXT)
Select the TELETEXT mode. (all TV image, all TEXT image, TV/TEXT
image) 
23
RETURN
MENU mode: Retur
n to the pr
evious menu scr
een.
24
ENTER
Execute a command.
Retur
n to the initial image position after moving with 
/
/
/
.
25
/
/
/
 (Cur
sor)
Select a desir
ed item on the setting scr
een.
Move the pictur
e on the scr
een.
1
2
3
4
5
6
7
8
9
10
11
12
14
15
13
16
17
18
19
20
21
22
23
24
25
NO
TE
When using the r
emote contr
ol unit, point it
at the Display
.
*
 is a trademark of SRS Labs, Inc.
FOCUS technology is incorporated under
license fr
om SRS Labs, Inc.
Remote contr
ol unit
AC INPUT
110V–240V
DISPLAY INPUT2
DISPLAY INPUT1
System cable
A
VC System (rear vie
w)
AC cor
d
Displa
y
 (rear vie
w
)
AC cor
d
System cable
(GREY)
Connect the plug fir
mly
until the hooks on both
sides click.
(WHITE)
Connect the plug into the
ter
minal and secur
e it by
tightening the thumb scr
ews.
(GREY)
(WHITE)
Setting the System
After putting the Display and the A
VC System in place, connect the system cables and AC cor
ds. Use the
cable clamp for bundling the cables.
Press do
wn the tw
o
upper hooks to remo
ve
the co
ver to
war
d y
ou.
Connecting the system cab
le and the A
C
 cor
d to the Displa
y
1
2
3
Remo
ving the terminal co
ver
Connecting the system cab
le and the A
C
 cor
d to the A
VC System
CA
UTION
T
O
 PREVENT RISK OF ELECTRIC SHOCK,
 DO NO
T
OUCH UN-INSULA
TED P
A
R
TS OF ANY CABLES 
WITH 
THE
A
C
 CORD CONNECTED
.
Page of 127
Display

Sharp LC-30HV4E (serv.man2) Service Manual ▷ Download

  • DOWNLOAD Sharp LC-30HV4E (serv.man2) Service Manual ↓ Size: 16.95 MB | Pages: 127 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp LC-30HV4E (serv.man2) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp LC-30HV4E (serv.man2) LCD. Information contained in Sharp LC-30HV4E (serv.man2) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.