Sharp 64LHP5000 User manual

1
64LHP5000
PROJECTOR UNIT
SERVICE MANUAL
S29C764LHP5-P
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
〈Issue No.S29C764LHP5-P〉
SPECIFICATIONS..............................................2
SAFETY INFORMATION...................................3
OPERATION MANUAL......................................6
ADJUSTMENT.................................................13
GENERAL INFORMATION..............................50
BLOCK DIAGRAMS.......................................102
SCHEMATIC DIAGRAM.................................108
PCB CONNECTION DIAGRAM.....................220
Page Page
〈Issue No.S29C864LHP5-P〉
PARTS LIST
ELECTRICAL PARTS...............................244
CABINET AND MECHANICAL PARTS....320
PACKING OF THE SET.................................341
SHARP CORPORATION This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
REAR PROJECTION HDTV
64LHP5000MODEL
OUTLINE
1.This manual covers the 64LHP5000 Projector unit.The DTV Decoder is referred to in the DTV Unit Service
Manual that will be separately issued.
2.The Projector Unit Service Manual consists of two books:Issue No.S29C764LHP5-P and Issue No.
S29C864LHP5-P Use these two books together for serivicing.
FINAL

2
64LHP5000
PROJECTOR UNIT
Specifications
Display and amplifier section
Screen size ..................................................................... 64"
CRT.................................................. 7" High focus CRT x 3
Brightness (White peak) ......................... 400 Foot-Lambert
[White window signal input contrast Max.]
without protective screen
Horizontal resolution.......................... More than 1400 lines
[Input digital test pattern (1400 lines resolution)]
Input terminals ...............................................4 video inputs
4 S-VIDEO input jacks (Y/C separate INPUT)
2 COMPONENT VIDEO INPUT jacks (Y, CB/PB, CR/PR)
4 audio inputs
CENTER INPUT jack
Output terminals ..................................... MONITOR/AUDIO
Input terminal signal ratings
Input signal
Video signal:
Composite and S-VIDEO(Y): 1.0 Vp-p (75 ohms
load)
COMPONENT (Y):1.0 Vp-p (75 ohms load)
(CB/PB, CR/PR):0.7 Vp-p (75 ohms load)
Audio signal (including CENTER): 500mV rms
Input impedance............................. Video input: 75 ohms
Audio input (including CENTER): 22 kilo-ohms
or more
Input signal polarity (Video) ........ Synchronized negative
Output terminal signal ratings
Output signal .......... Video signal: 1 Vp-p (75 ohms load)
Audio signal: 500 mV rms (100 % modulation)
Output impedance ........................Video output: 75 ohms
Audio output: Less than 1 kilo-ohms
Effective output
Front both channels driven ............................. 15 W + 15 W
(THD. 1 % 1 kHz, 8 ohms)
Built-in speaker system ......16 cm (6-5/16 in) full range x 2
..............................................6.6 cm (2-9/16 in) tweeter x 2
DTV-OUT (NTSC)................... Audio: 2 Vrms (1 kHz, 0 dB)
Video: Composite Video; 1.0 Vp-p (Negative sync on), 75
Audio output
5.1 ch output.............................. Front L/R, surround L/R,
center and subwoofer
Output connector: Pin-jack
Digital audio I/F .Optical digital output: Optical connector
Coaxial digital output........................................... Pin-jack
IR-MOUSE G-LINK Terminal x 1
Digital expansion port ............. For expansion input devices
Tuner section
Circuit type...................................... Video signal detection:
PLL full synchronous detection
PLL digital synthesizer system
Audio multiplex: ATSC system
NTSC Reception channels
VHF; CH2–CH13, UHF; CH14–CH69
CATV (STANDARD, IRC or HRC)
CATV 1-125 CH
DTV reception channels
VHF: Low 54–88 MHz, High 174–216 MHz,
UHF: 470–806 MHz
Antenna terminals
................................... Antenna terminal, 75 ohms UNBAL,
F-type connector (VHF, UHF MIXED)
Electrical section, miscellaneous
Power requirements...................................120 V AC, 60 Hz
Power consumption ................................................... 400 W
External dimensions .... 1510 (W) x 698 (D) x 1425 (H) mm
59-7/16 (W) x 27-31/64 (D) x 56-1/8 (H) inch
Weight of main unit.............................. 167 kg (368 lb 4 oz)
NOTE:
Specifications and design are subject to possible modifications
without notice due to improvements.

3
64LHP5000
PROJECTOR UNIT
SAFETY INFORMATION
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-
yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to
properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may void the
warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk
trying to do so and refer the repair to a qualified service technician.
WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of
California to cause cancer, birth defects or other reproductive harm.
Health & safety code section 25249.6—Proposition 65
NOTES
(FOR CANADIAN MODEL ONLY)
Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be
of identical designation.
REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces de
remplacement doivent avoir la même désignation.
SAFETY PRECAUTIONS
NOTlCE: Comply with all cautions and safety related notes
located on or inside the cabinet and on the chassis or picture
tube.
The following precautions should be observed:
1. Do not install, remove, or handle the picture tube in any
manner unless shatterproof goggles are worn. People
not so equipped should be kept away while picture tubes
are handled.
Keep picture tube away from the body while handling.
2. When service is required, even though the PROJEC-
TION MONITOR RECEIVER an isolation transformer
should be inserted between power line and the set in
safety before any service is performed.
3. When replacing a chassis in the set, all the protective
devices must be put back in place, such as barriers,
nonmetallic knobs, adjustment and compartment
covershields, isolation resistor-capacitor, etc.
4. When service is required, observe the original lead
dress.
Extra precaution should be taken to assure correct lead
dress in the high voltage circuitry area.
5. Always use the manufacturer’s replacement compo-
nents. Especially critical components as indicated on the
circuit diagram should not be replaced by other
manufacture’s.
Furthermore where a short circuit has occurred, replace
those components that indicate evidence of overheating.
6. Before returning a serviced set to the customer, the ser-
vice technician must thoroughly test the unit to be certain
that it is completely safe to operate without danger of
electrical shock, and be sure that no protective device
built into the set by the manufacturer has become defec-
tive, or inadvertently defeated during servicing.
Therefore, the following checks should be performed for the
continued protection of the customer and service technician.
Leakage Current Cold Check
With the AC plug removed from 120V AC 60Hz source,
place a jumper across the two plug prongs. Turn the AC
power switch on. Using an insulation tester (DC 500V), con-
nect one lead to the jumpered AC plug and touch the other
lead to each exposed metal part (input/output terminals,
screwheads, metal overlays, control shafts, etc.), particu-
larly any exposed metal part having a return path to the
chassis. Exposed metal parts having a return path to the
chassis should have a minimum resistor reading of 0.3MΩ
and a maximum resistor reading of 5MΩ. Any resistor value
below or above this range indicates an abnormality which
requires corrective action. Exposed metal parts not having a
return path to the chassis will indicate an open circuit.

4
64LHP5000
PROJECTOR UNIT
Leakage Current Hot Check
Plug the AC line cord directly into a 120V AC 60Hz outlet ( do
not use an isolation transformer for this check). Turn the AC
power switch on.
Using a “Leakage Current Tester (Simpson Model 229
equivalent )”, measure for current from all exposed metal
parts of the cabinet ( input/output terminals, screwheads,
metal overlays, control shaft, etc. ), particularly any exposed
metal part having a return path to the chassis, to a known
earth ground (water pipe, conduit, etc.). Any current mea-
sured must not exceed 0.5mA.
Device
under
test
Leakage
current
tester
Reading should
not be above
0.5 mA
Also test with
plug reversed
(Using AC adapter
plug as required)
Test all
exposed metal
surfaces
X-radiation
TUBE: The primary source of X-radiation in this set is the
picture tube.
For continued X-radiation protection, the replacement tube
must be the same type as the original, SHARP approved
type.
The picture tube (the CRT assy R, G, B ) use in this set
holds complete guarantee against X-ray radiation when the
X-ray is sealed (See page 5). Accordingly, when the current
in flowing to the picture tube (CRT assy R, G, B) be sure to
perform it by putting the tube into X-ray sealed applied state.
Avoid absolutely to flow the current to the picture tube (CRT
assy R, G, B) itself. Moreover, when the voltage of the high
voltage circuit becomes abnormally a little higher, the pic-
ture tube radiates X-rays. Accordingly, when servicing the
high voltage circuit be sure to replace as an assembly with
the DEFLECTION SERVICE assy in the manner in which
has been adjusted to perform normal operation.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in SHARP set have
special safety related characteristics. These are often not
evident from visual inspection nor the protection afforded by
them necessarily can be obtained by using replacement
components rated for higher voltage, wattage, etc. Replace-
ment parts which have these special safety characteristics
are identified in this Service Manual.
Electrical components having such features are identified by
marking with a åon the schematics and on the parts list in
this Service Manual.
The use of a substitute replacement component which does
not have the same safety characteristics as the SHARP rec-
ommended replacement one, shown in the parts list in this
Service Manual, may create shock, fire, X-radiation, or other
hazards.
Product Safety is continuously under review and new in-
structions are issued from time to time. For the latest infor-
mation, always consult the current SHARP Service Manual.
A subscription to, or additional copies of SHARP Service
Manual may be obtained at a nominal charge from SHARP.
ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED
ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD
AND MUST BE CORRECTED BEFORE RETURNING THE SET
TO THE CUSTOMER.
High Voltage
This set is provided with a X-ray protection for clearly indi-
cating that voltage has increased in excess of a predeter-
mined value. Comply with all notes described in this Service
Manual regarding this hold down circuit when servicing, so
that this X-ray protection may correctly by operated.
Serviceman Warning
In the status of the black picture ( video muting is being ap-
plied ) when no signal is input, high voltage of this set during
operation is less than 30.5kV. In case any component hav-
ing some relation to the high voltage is replaced, confirm
that the high voltage is lower than 30.5kV in the status of the
black picture when no signal is input.
To measure H.V. use a high impedance H.V. meter.
Connect ( – ) to earth and ( + ) to the FBT anode cable con-
nector.
(Refer to page 50)
Earth ground
AC Leakage Test
2-wire cord

5
64LHP5000
PROJECTOR UNIT
CHARGED SECTION, HIGH VOLTAGE GENERATING POINT
AND X-RAY PROTECTION
ËCharged section
The circuit in which the commercial AC power is used as it
is without passing through the power supply transformer. If
the charged section is touched, there is a risk of electric
shock. In addition, the measuring equipment can be dam-
aged if it is connected to the GND of the charged section
and the GND of the non-charged section while connecting
the set directly to the commercial AC power supply. In this
case, be sure to connect the set via an insulated transformer
and supply the current.
ËCharged section
(Power supply primary side)
1. The primary side of the AC IN assy
2. AC power cord
3. The primary side of the POWER SUPPLY assy
4. AC power cord for DTV STB ËX-ray protection
• Regarding the parts which are relative to radiation of X-
rays (There is the danger to radiate X-ray from the indi-
vidual CRT assy R, G, B), there are notifications of cau-
tion in the individual schematic diagrams. Be sure to read
them for safety’s sake.
• The component parts for X-ray protection are as follows :
When the current flows to the CRT assy R, G, B, be sure
to perform it with these parts being attached. Protection
from the X-ray radiation is maintained in the state in which
these parts have been installed to the CRT assy. R, G, B.
Accordingly, never supply current only to the CRT assy R,
G, B.
Moreover, the anode voltage of the CRT assy R, G, B
should always be kept not higher than the predetermined
value (in the minimum brightness and picture state when
non signal input is less than 30.5kV). Be sure to drive the
CRT assy R, G, B by using a completely functional DE-
FLECTION assy which have been adjusted completely in
the combined state. (When the voltage abnormally be-
comes high, the X-ray protection circuit will operate.)
1. CRT assy R, G, B (Do not dismantle CRT assemblies
under any circumastances)
2. Each Lens assy
Fig. 2 Component parts for X-ray protection
: Part is the charged section.
: Part is the high voltage generating
points other than the charged section.
AC power cord for
DTV STB
High Voltage
generating point
High Voltage
generating point
High Voltage
generating point
AC Power cord
Charged section
ËHigh voltage generating point
The place where voltage is 100V is generated.
1. Charged seciton
DEFLECTION assy
(including FBT) (30.5kV, 1.2kV, 210V,135V)
2. POWER SUPPLY assy (135V)
3. R. CRT DRIVE assy (10.5kV, 210V)
4. G. CRT DRIVE assy (10.5kV, 210V)
5. B. CRT DRIVE assy (10.5kV, 210V)
6. CRT assy R (CRT service assy R) (30.5kV)
7. CRT assy G (CRT service assy G) (30.5kV)
8. CRT assy B (CRT service assy B) (30.5kV)
9. Focus variable resistor(VR1) (10.5kV)
10. Deflection yokes (L1, L2 and L3) Approx. (1100V at peak)
Fig. 1 Charged section and high voltage generating point

6
64LHP5000
PROJECTOR UNIT
Front Panel Functions
A flip-down door conceals the control panel. Push gently
and release, to open the door.To close the door, lift it back
up into place.
NOTE:
If you accidentally pull the door, it may not shut properly. Push the
door back in to shut it.
1POWER/DOWNLOAD indicator
Lights when power is on.Flashes when downloading the
GUIDE Plus+ program information.
2Timer indicator
Lights GUIDE Plus+ timer is set.
3DTV indicator
Lights when receiving a digital television broadcast.
Flashes when downloading the DTV program information.
(DTV indicator may still blink even when the power has
been turned off.This is not a defect.)
4OPC sensor
Sensor to detect the room brightness.
5POWER button (STANDBY/ON)
Press once to turn on the Rear Projection HDTV. Press
again to turn off the Rear Projection HDTV.
NOTE:
When the Rear Projection HDTV is turned on in DTV mode, it may take
several seconds before the DTV image is displayed.This is not a
malfunction.
6INPUT button
Press to select your program source.Each press of the
INPUT changes the selection to the next source.
In some cases, the door may only open slightly when
pushed.
In such cases, open the door with your finger as shown in
the figure at left.
7CHANNEL buttons
Press plus 'or minus "to tune to a higher or lower
channel. Only the preset channels can be tuned in using
these buttons.
8RETURN button
Press to set the Rear Projection HDTV to its initial mode.
TV DTV INPUT 1
INPUT 4 INPUT 3 INPUT 2
POWER
STANDBY/ON
INPUT CH RETURN
POWER/
DOWN LOAD TIMER OPC
51 2 3 4 6 7 8

7
64LHP5000
PROJECTOR UNIT
Initial mode
Input selector: Set to TV.
TV channel: Remains at the last channel set.
VOLUME: Remains at the last setting.
MUTING: OFF
VIDEO
MODE: STD
Parameters: Set to 0.
3DY/C LEVEL: 3
3D NR LEVEL: 3
CNR: OFF
FAV. COLOR: STD.
FLESH TONE: ON
AUDIO
MTS: MAIN
Parameters: Set to 0.
SURROUND: OFF
VIEW
AUTO VIEW: OFF
MODE: SMART STRETCH
V. POSITION: Set to 0.
CC: OFF
OPC: OFF
SYSTEM IN/OUT
SPEAKER: NORMAL
AUDIO OUT: FIXED
•When this button is pressed while adjusting the
outer point convergence, the outer point
convergence returns to the initial mode.
9VOLUME buttons
Press plus (+) button to increase the volume, press minus
(–) button to decrease it.
0INPUT 4 jacks
These inputs are for Video Movie and VCR. Use RCA-type
pin plug cords (the same as those used in Hi-Fi systems)
and S-VIDEO cords for connections.When the audio
source to be connected is monaural, connect the source to
the L-(MONO) jack.
CAUTION:
Do not press any operation button on the Rear Projection
HDTV or the remote control unit while recording. Signals
from the MONITOR OUTPUT jacks may be temporarily
interrupted when a button is pressed.
ATTENTION
The Rear Projection HDTV Receiver will not function
properly in the following cases.
•An electrical discharge in the CRT.
•Lightning storms.
•High static electricity environment.
•Poor voltage regulation in the power source.
If the Rear Projection HDTV does not operate properly,
reset it as follows:
1. Unplug the AC cord.
2. After approximately 1 minute, turn on the power with
switch and 5POWER button.
NOTE:
On rare occasions, an electrical discharge may occur inside the
CRT. It makes a short, sharp pop and either no sound is produced
or the volume level changes by itself.The TWIN PICTURE and
SEARCH SCREEN function will be cancelled automatically if an
electrical discharge occurs when this function is engaged.
FRONT PANEL FUNCTIONS
VOL S-VIDEO
INPUT 4
VIDEO L-AUDIO-R
(MONO)
9 0

8
64LHP5000
PROJECTOR UNIT
Remote Control Unit Functions
MONITOR (TV) CONTROL BUTTONS
1POWER button
Turns the power of the Rear Projection HDTV on and off.
2Input button (TV, DTV, INPUT 1 to INPUT 4)
Press the button to select the source you wish to watch.The screen
will display your selection.
3VIEW MODE button
Press to select the VIEW MODE.
4ANT-A/B button
Press to switch between ANTENNA-A and ANTENNA-B when you
wish to watch TV.
5Direct channel selection buttons
Press the button (or buttons) that corresponds to the channel that
you wish to watch.
6CH (channel) ', "button
Press plus 'or minus "to tune in a higher or lower channel.Only
the preset channels can be tuned in using these buttons.
7MUTE button
Press to temporarily turn off the sound. Press again to return to the
previous volume level.
8Cursor/ENTER buttons (ENTER, \, |, ', ")
\, |, ', ": Press to select or adjust items on the menu screen.
ENTER: Press to activate the selected function.
9FAVORITES buttons
These buttons call up the channels that have been assigned to
them.
REMOTE CONTROL UNIT SETTING BUTTONS
0Remote control mode select buttons
Use to switch the remote control unit modes.
qLight button
When this button is pressed, some buttons on the remote control
unit will light.The lighting will turn off if no operations are performed
within about six seconds.
This button is used for performing operations in dark places.
4
3
7
q
5
1
6
8
2
9
0

9
64LHP5000
PROJECTOR UNIT
wTWIN PICTURE/SEARCH screen buttons
TWIN PICTURE: Press to turn the TWIN PICTURE screen function
on and off.
STROBE: Press to turn the STROBE screen on and off.
SEARCH: Press to select the SEARCH screen mode.
SELECT: Selects the screen for switching the channel or
input source.*1
FREEZE: When this button is pressed with the regular
screen, the screen will change to the TWIN
PICTURE screen and the picture at the time the
button was pressed will become the sub-picture,
displayed as a frozen image.
"-TWIN CH-': Used to switch the channel for the sub-picture of
the TWIN PICTURE screen.
eDISPLAY button
Turns the screen indicators for the input source, channel, setting,
and they will appear for a few seconds.
rFLASHBACK button
Press to switch between the current channel and the channel you
were watching immediately before.
tVOL (volume) +, – buttons
Press plus (+) button to increase the volume, press minus (–) button
to decrease it.
Volume level will appear on the screen as numbers and a bar graph.
The maximum volume level is “63”.
The display will disappear from the screen after 2 seconds.
yMENU button
Press to turn on the menu screen for use in function selection.
Press again to return to normal TV screen.
uGUIDE/TV button
iINFO button
oVCR Plus+ button
pENTER button
aACTION button
sbutton
The buttons of u-slisted above are GUIDE Plus+ buttons.
*1 With the 9-SEARCH screen, the search picture’s input source
and channel cannot be switched.
a
t
w
e
s
p
r
y
i
o
u

10
64LHP5000
PROJECTOR UNIT
DTV CONTROL BUTTONS
1AUDIO button
Press to select the audio mode during multiaudio broadcasts.
2Direct channel selection buttons, button
Press the buttons that corresponds to the channel that you wish to
watch.
3CH (channel) ', "button
Press plus 'or minus "to tune in a higher or lower channel.
4Cursor/ENTER buttons (ENTER, \, |, ', ")
\, |, ', ": Press the button to select items on the DTV MENU
screen.
ENTER: Press to activate the selected function.
5FAVORITE CH/Colored (blue, green, red and yellow) buttons
FAVORITE CH: Used for making FAVORITE CH settings for the
DTV.
Blue, Green, Red,Yellow: Used to make selections from the DTV
menu.
6DTV button
Turns the TV to the DTV mode.
7FLASHBACK button
Press to switch between the current channel and the channel you
were watching immediately before.
8DTV MENU button
When this button is pressed, the DTV menu screen will be
displayed.
9INFO button
When this button is pressed, information on DTV will be displayed.
0VIEW MODE button
Adjust picture size.
2
3
4
6
7
8
9
5
1
0

11
64LHP5000
PROJECTOR UNIT
CABLE CONTROL BUTTONS
Cable converters which are made by other makers and are not
preset can also be operated using the remote control unit if buttons
1to 2have learnt the functions.
1Direct channel selection buttons
Press the button (or buttons) that corresponds to the channel that
you wish to watch.
2CH (channel) ', "buttons
Press plus 'or minus "to tune in a higher or lower channel.
3ENTER button *
Fix the selected channel with the direct channel selection buttons.
* Some manufacturers do not preset ENTER.
1
2
3

12
64LHP5000
PROJECTOR UNIT
VCR CONTROL BUTTONS
If the VCR is preset by OPERATION OF REMOTE CONTROL, the
remote control unit button will function as follows when the mode
switch of the remote control unit is set to VCR.
When the input button having the same number as the input
terminal connecting the VCR is pressed, the VCR can be operated
using buttons 1to 9.
VCR which are made by other makers and are not preset can also
be operated using the remote control unit if buttons 1 to 9have
learnt the functions.
1Numeric buttons
Use to enter two-digit code numbers when identifying your VCR.
2\\REW
Press to rewind a tape. For some VCRs you may need to press
STOP first, then REWIND.
In Playback mode, hold button down to view picture moving
rapidly in reverse.
3|PLAY
Press to play back a tape.
4âPAUSE
Press to temporarily stop the tape during playback or recording.
Press again to release Pause.
5ËSTOP
Press to stop the tape.
6ÆREC
Press to begin recording.
7FF ||
Press to rapidly advance the tape.For some VCRs, you may
need to press STOP first, then FF.
In Playback mode, hold button down to view the picture moving
rapidly in forward direction.
8VCR CHANNEL UP (')/ DOWN (")
Press to scan up or down through the channels on the VCR.
9VCR POWER Æ
Press to turn the VCR on and off.
1
2
3
4
5
6
9
8
7

13
64LHP5000
PROJECTOR UNIT
ADJUSTMENT
ËKey Indication of the Remote Control Unit
Adjustment Adjustment
Name
CUT-R
Color
STATIC
SKEW
3D SKEW
5D SKEW
VOL0
TYPE
GH GV RH RV BH BV
ADJUSTMENT
ITEMS
NU
MERIC
KEYS
RANGE
OFFSET
TINT
Contrast
SUB KEY
M S KEY
3S KEY
M 3S KEY
Bright
Sharpness
Detail
VOL20
S.V.M
S.V.M
3DYC,
3D NR Level
BOW
4D BOW
6D BOW
LIN
MID LIN
6D LIN
KEY
MID KEY
3D KEY
M 3D KEY
SUB PIN
M S PIN
4S PIN
M 4S PIN
PIN
MID PIN
4D PIN
M 4D PIN
VOL30
DRV-R
DRV-B
SIZE
MID SIZE
5D SIZE
(Data Value)
VOL – VOL +
GV (Green, Vertical)
GH (Green, Horizontal)
BV (Blue, Vertical)
CUT-G
OFFSET:
RH (Red, Horizontal)
RV (Red, Vertical)
BH (Blue, Horizontal)
CONVER GE: CUT-B
SRS ON/OFF
RANGE:
TRU ON/OFF
Cyclically
• Adjustment Items

14
64LHP5000
PROJECTOR UNIT
ËJigs and Measuring Instruments
·Screwdriver ·Adjustment screwdriver
Color bar generator D.DC.Volt meter LD player
Monoscope Dual trace oscilloscope Frequency counter
For HD Signal generator

15
64LHP5000
PROJECTOR UNIT
ËAssembly Adjustment Location and Items
ATUNER • µ-COM ASSY (A SIDE)
BPOWER SUPPLY ASSY
!Power supply adjustment
@Contrast coarse adjustment
#Brightness adjustment (PIONEER’s standard settings)
$Deflection yoke lean adjustment
%Screen center adjustment
^Focus adjustment of lens assy
&Focus VR adjustment
*Vertical size adjustment
(Horizontal size adjustment
)Convergence adjustment
QTest cross H-center position adjustment
WTuner block adjustment
EWhite balance adjustment
RPIONEER’s standard settings
TSide panel adjustment (Screen size 4:3)
YSPLIT screen adjustment
FOCUS VR (VR1)
MEASURING METHOD
Disconnect the FBT anode cable as shown below.
Measure at the point where the cable enters the FBT.
Caution: Take extra precaution when measuring the
voltage.High voltage are also present in
surrounding circuit boards.(CRT DRIVE assy,
POWER SUPPLY assy).
SERVICEMAN WARNING
Before removing the anode cable, turn off the power,
unplug the AC plug and let the unit discharge for more
than 1 minute.
Note:
When reconnecting the cable, proceed in the reverse
order.After reconnecting, tug on the cable to check
that it is secure.
B
G FOCUS VR
R
Translucent paper such as tracing paper
Lens assy
(For Green)
Lens assy
(For Red)
Lens assy
(For Blue)
CRT assy B
Deflection
yoke (B)
Deflection
yoke
Deflection
yoke (G)
Deflection
yoke (R)
CRT assy G CRT assy R
R CRT DRIVE
assy
G CRT DRIVE
assy
B CRT DRIVE
assy
Centering magnet
(Turn in either direction untill cross signal becomes white.)
TP-GK
TP-BK
Anode cable
Pull straight up
FBT
TUNER • µ-COM ASSY (B SIDE)
J2703
K2702
IC2701
VR2701
916
18
IC2202
52 27
126
VR2801
L2202
Q2708
IC2702
14 8
71
IC201
91
VR202
VR201 TP201
TP204
IC207
91
1
1
10
1
11
15
P5252
P5254
P5253
IC5251
1
28
56
29
CVIDEO ASSY (A SIDE)

16
64LHP5000
PROJECTOR UNIT
ËAssembly Adjustment Location Guide
is repaired
is replaced
8
7
Vertical size adjustment
Focus VR adjustment
9
Horizontal size adjustment
10
Convergence adjustment
13
White balance adjustment
If POWER SUPPLY ASSY
B
4
Deflection yoke lean adjustment
R, G, B or deflection yoke is replaced
5
Screen center adjustment
7
Focus VR adjustment
10
Convergence adjustment
13
White balance adjustment
14
SHARP's standard settings
If CRT ASSY
3
Brightness adjustment
the µ-COM block
13
White balance adjustment
14
SHARP's standard settings
2
Contrast coarse adjustment
12
Tuner block adjustment
1
Power supply adjustment
10
Convergence adjustment
13
White balance adjustment
3
Brightness adjustment (SHARP's standard settings)
All the above adjustments except for the test-cross H-center
position adjustment and tuner adjustment are required.
3
Brightness adjustment
8
Vertical size adjustment
9
Horizontal size adjustment
11
Test cross H-center position adjustment
14
SHARP's standard settings
15
Side panel adjustment
If TUNER µ-COM ASSY
A
is repaired or replaced
If AMP ASSY
is repaired or replaced
If VIDEO ASSY
is repaired or replaced
If DEFLECTION ASSY
No adjustment is required
No adjustment is required
is repaired or replaced
If OTHER ASSY
is repaired or replaced
If R, G or B CRT DRIVE ASSY
6
Focus adjustment of lens assy
is replaced
is replaced
(*1)
10
Convergence adjustment
10
Convergence adjustment
If LENS ASSY
is repaired or replaced
If CONVER. DAC ASSY
13
White balance adjustment
is repaired or replaced 14
SHARP's standard settings
If SUB VIDEO ASSY
Check white balance. If the best screen is not obtained, adjust
White balance adjustment
SPLIT screen adjustment
is repaired or replaced 13
16
If SIGNAL ASSY
the tuner block
is repaired
C
11
(*1) When replacing the tuner u-com assembly, mount the IC2204 (24LC32A:E2 PROM)on the current assembly to the new one to facilitate
adjustments.

17
64LHP5000
PROJECTOR UNIT
ËFactory ADJ Mode
Start
.................. Start adjusting
1st FAC
............ Select 1st factory adjustment mode, then adjust.
Select 1st FACTORY ADJ Mode
“ON”
Front panel Normal
picture
The 2nd factory adjustment
mode is not used in the
adjustment.
Cyclically
(MUTE) (MUTE)
(MUTE)
(MUTE)
(MUTE)
(MUTE)
(MUTE)
2nd FAC-
TORY ADJ
mode
picture
RANGE CHECK mode
(MENU ON)
Telop : Red
1st FAC-
TORY ADJ
mode
picture
Push the
switch with
thin rod.
PANELADJ mode
(FLASHBACK)
Telop : Yellow
STD OFFSET mode
(∞DOWN)
Telop : Blue
ADJUSTMENT SIZE
mode (ANT-A/B)
Telop : Green
MANUAL CONVER-
GENCE mode (ENTER)
Telop : White
ADJUSTMENT MPX mode
(P IN P ON/OFF) (TWIN PICTURE)
Telop : Magenta
AUTO ADJ mode
(LEFT)
Telop : White
1
2
4
5
3
7
SIGNALADJ mode
(FF )
Telop : White
TEST mode
(RIGHT)
Telop : Green
Not used in the
adjustment
OTHERS OFFSET
mode (XXXA)
Telop : -----
EPG CHECK mode
(GUIDE/TV)
Telop : Yellow
DTV PANEL mode
(DTV)
Telop : Yellow
6
8
Start
Selecting the mode for adjustment operations.
Note :
The brackets ( ) show the operation key.

18
64LHP5000
PROJECTOR UNIT
Telop : Blue Data value
: COLOR (–64 to 63)
: TINT (–64 to 63)
: CONTRAST (–64 to 63)
: BRIGHT (–128 to 127)
: SHARPNESS (–128 to 127)
: DETAIL (–128 to 127)
: VM (–128 to 127)
: DRV-R (–64 to 63)
: DRV-B (–64 to 63)
: CUT-R (–128 to 127)
: CUT-G (–128 to 127)
: CUT-B (–128 to 127)
: STD OFFSET (NTSC)
: COMP (31kHz, 33kHz) OFFSET (HD)
: COMP (15kHz) OFFSET
(NTSC Component)
or
<Data value section>
<Picture quality>
STD
COLOR –24
OFFSET
Adjustment Range Mode
1
Start
Picture quality, eyc., Change amount check made operating.
: COLOR,
BASS
Cyclically
CNT
MIN
MAX
:TINT,
TREBLE
: CONTRAST,
BALANCE
: BRIGHT
: SHARP-
NESS
: S.V.M
: DETAIL
:Vol 20
:Vol 30
:Vol 0
<VOLUME>
CNT
MIN
MAX
TINT SHARPNESS
Center
The color to purple
The color to green
Center
Sharp
Soft
ADJUSTMENT
COLOR, BASS CNT
PD5462A RANGE
Telop : Red
ADJUSTMENT
VOL 20
PD5462A RANGE
Adjustment OFFSET Mode
2
Start
1st FAC
This mode is to set the standard picture quality for a normal picture.
1st FAC

19
64LHP5000
PROJECTOR UNIT
Size Mode
3
Start
1st FAC
• Mode for roughly adjusting the horizontal and vertical sizes of the main deflection.
• In this mode, the color is green only, screen size is FULL and the contrast is
+10.
• The above settings are cleared when this mode is exited.
or
ADJUSTMENT
H SIZE –24
FULL SIZE
Telop : Green
Screen mode
Data value
Size mode
or
(–128 to 127)
: H Size
:V Size
For
service
: P HA
: FULL (HD) H SIZE and
fixed value D can be
varied.
CH + : H PHA
(31 kHz)
CH – : H PHA
(33 kHz)
FULL ZOOM CINEMA WIDE
FULL (HD) NATURAL WIDE
<Data value section>
<Size mode>
<View mode>
Table on H SIZE and V SIZE data
Picture quality mode
NATURAL
ZOOM
CINEMA
FULL
FULL (MD)
H SIZE
A
A
A
A
A+D
V SIZE
B
B
B
B
B
A, B: are adjustment values.
D: Fixed value.
Table on H PHA data
Component input
(INPUT1, INPUT2) DTV Others
(NTSC system)
C: Adjustment value
G: Fixed value
E, F: Fixed value + arbitrary service values
PHA
15 kHz 31 kHz 33 kHz
CEFG C

20
64LHP5000
PROJECTOR UNIT
Convergence Setting Mode
4
Start
1st FAC
Telop :White
RH (Red, horizontal)
: Red ON/OFF
: Green ON/OFF
: Blue ON/OFF
RV (Red, vertical)
BH (Blue, horizontal)
GV (Green, vertical)
STATIC (H, V)
SKEW 3D SKEW 5D SKEW
BOW 4D BOW 6D BOW
SUB KEY M S KEY 3S KEY
M 3S KEY
KEY MID KEY 3D KEY
M 3D KEY
SUB PIN M S PIN 4S PIN
M 4S PIN
PIN MID PIN 4D PIN
M 4D PIN
LIN MID LIN 6D LIN
SIZE MID SIZE 5D SIZE
Cyclically
oror GH (Green, horizontal)
BV (Blue, vertical)
Screen mode
–128~127
Data value
Data value
Adjustment item
<Variety section>
<Adjustment item section> <View mode>
<CRT control>
<Data value section>
Variety
FULL ZOOM CINEMA
WIDE
FULL (HD) NATURAL
WIDE
ADJUSTMENT
GV STATIC –120
FULL
GV STATIC –120
ADJUSTMENT FULL