Sharp PZ-50HV2E (serv.man34) Service Manual ▷ View online
6
PZ-50HV2, PZ-50HV2E
PZ-50HV2U
PZ-50HV2U
Leakage Current Cold Check
With the AC plug removed from an AC power source, place
a jumper across the two plug prongs. Turn the AC power
switch on. Using an insulation tester (DC 500V), connect 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.), particularly 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 0.3M
a jumper across the two plug prongs. Turn the AC power
switch on. Using an insulation tester (DC 500V), connect 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.), particularly 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 0.3M
Ω
and a maximum resistor
reading of 5M
Ω
. 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
Exposed metal parts not having a return path to the chassis
will indicate an open circuit.
Leakage Current Hot Check
Plug the AC line cord directly into an AC power source (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 measured
must not exceed 0.5mA.
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 measured
must not exceed 0.5mA.
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.
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
RETURNING THE SET TO THE CUSTOMER.
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.
Replacement parts which have these special safety
characteristics are identified in this Service Manual.
Electrical components having such features are identified by
marking with a
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.
Replacement parts which have these special safety
characteristics are identified in this Service Manual.
Electrical components having such features are identified by
marking with a
å
on the schematics and on the parts list in
this Service Manual.
The use of a substitute replacement component which dose
not have the same safety characteristics as the SHARP
recommended replacement one, shown in the parts list in this
Service Manual, may create shock, fire or other hazards.
Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
information, 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.
The use of a substitute replacement component which dose
not have the same safety characteristics as the SHARP
recommended replacement one, shown in the parts list in this
Service Manual, may create shock, fire or other hazards.
Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
information, 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.
Device
under
test
under
test
Leakage
current
tester
current
tester
Reading should
not be above
0.5 mA
not be above
0.5 mA
Also test with
plug reversed
(Using AC adapter
plug as required)
plug reversed
(Using AC adapter
plug as required)
Test all
exposed metal
surfaces
exposed metal
surfaces
Earth ground
7
PZ-50HV2, PZ-50HV2E
PZ-50HV2U
PZ-50HV2U
CHARGED SECTION AND HIGH VOLTAGE GENERATING POINT
Ë
Charged Section
The places where the commercial AC power is used without
passing through the power supply transformer.
If the places are touched, there is a risk of electric shock. In
addition, the measuring equipment can be damaged 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. Therefore, be sure to
connect the set via an insulated transformer and supply the
current.
passing through the power supply transformer.
If the places are touched, there is a risk of electric shock. In
addition, the measuring equipment can be damaged 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. Therefore, be sure to
connect the set via an insulated transformer and supply the
current.
1. AC Power Cord
2. AC Inlet with Filter
3. Power Switch (S1)
4. Fuse (In the SW POWER SUPPLY Module)
5. STB Transformer and Converter Transformer
(In the SW POWER SUPPLY Module)
6. Other primary side of the SW POWER SUPPLY Module
2. AC Inlet with Filter
3. Power Switch (S1)
4. Fuse (In the SW POWER SUPPLY Module)
5. STB Transformer and Converter Transformer
(In the SW POWER SUPPLY Module)
6. Other primary side of the SW POWER SUPPLY Module
Ë
High Voltage Generating Point
The places where voltage is 100V or more except for the
charged places described above. If the places are touched,
there is a risk of electric shock.
charged places described above. If the places are touched,
there is a risk of electric shock.
1. SW POWER SUPPLY Module .............................. (225V)
2. X DRIVE Assy ....................................... (–300V to 225V)
3. Y DRIVE Assy ....................................................... (355V)
4. SCAN (A) Assy ...................................................... (355V)
5. SCAN (B) Assy ...................................................... (355V)
6. X CONNECTOR (A) Assy ..................... (–300V to 225V)
7. X CONNECTOR (B) Assy ..................... (–300V to 225V)
2. X DRIVE Assy ....................................... (–300V to 225V)
3. Y DRIVE Assy ....................................................... (355V)
4. SCAN (A) Assy ...................................................... (355V)
5. SCAN (B) Assy ...................................................... (355V)
6. X CONNECTOR (A) Assy ..................... (–300V to 225V)
7. X CONNECTOR (B) Assy ..................... (–300V to 225V)
AC Inlet with Filter
Power Cord
Power Switch
(S1)
(S1)
Fig.1 Charged Section and High Voltage Generating Point (Rear View)
: Part is the High Voltage Generating Points
other than the Charged Section.
other than the Charged Section.
: Part is Charged Section.
X DRIVE
Assy
Assy
X CONNECTOR (B)
Assy
Assy
Y DRIVE
Assy
Assy
SCAN (A)
Assy
Assy
SCAN (B)
Assy
Assy
∗
Remove the IF Earth Metal beforehand when inclines
the power supply unit as the right figure.
the power supply unit as the right figure.
X CONNECTOR (A)
Assy
Assy
SW POWER SUPPLY
Module
Module
Top
Front
8
PZ-50HV2, PZ-50HV2E
PZ-50HV2U
PZ-50HV2U
OPERATION MANUAL
INPUT
CH
MAIN POWER button
ST
ANDBY/ON indicator
STANDBY/ON button
INPUT button
VOLUME buttons
(
(
/ )
CHANNEL buttons
(CH
(CH
/
)
Remote control sensor
Plasma Display TV (Panel Unit)
PZ-50HV2/2E
PZ-50HV2U
INPUT
VOL
POWER
MAIN POWER
CH
MAIN POWER button
STANDBY/ON indicator
POWER button
INPUT button
VOLUME /
buttons
CHANNEL
/ buttons
Remote control sensor
9
PZ-50HV2, PZ-50HV2E
PZ-50HV2U
PZ-50HV2U
1
(STANDBY/ON)
To switch the power on and off.
2
(FREEZE/HOLD for TELETEXT)
TV/External input mode: Change the still image mode.
TELETEXT mode: Freeze a multi-page on screen while other
pages are automatically updated. Press
TELETEXT mode: Freeze a multi-page on screen while other
pages are automatically updated. Press
again to return to the
normal image.
3
(DUAL screen)
Set the dual picture mode. Press
again to return to normal view.
4
(WIDE MODE/ T/B/F)*
TV/External input mode: Change the wide image mode.
TELETEXT mode: Set the area of magnification. (full/upper half/
lower half)
TELETEXT mode: Set the area of magnification. (full/upper half/
lower half)
5
AV MODE*
Select a video setting. AV MODE (STANDARD, DYNAMIC, MOVIE,
GAME, USER) PC MODE (STANDARD, USER)
GAME, USER) PC MODE (STANDARD, USER)
6
SOUND
Select the sound multiplex mode.
7
(SRS and FOCUS)
Select SRS and FOCUS Sound System.
8
(FLASHBACK)
Press to return to the previous channel in normal viewing mode.
Press to return to the previous page in TELETEXT mode.
Press to return to the previous page in TELETEXT mode.
9
/
(VOLUME)*
Set the volume.
10
(Reveal hidden for TELETEXT)
TELETEXT mode: Display hidden characters.
11
(SUBPAGE for TELETEXT)
TELETEXT mode: Change the picture mode for sub-page selecting.
12
MENU
Display the Menu screen.
13
(CHANNEL INFORMATION)
Display the channel information and time.
14
(INPUT SOURCE)
Select an input source. (TV, INPUT 1, INPUT 2, INPUT 3, INPUT 4,
PC)
PC)
15
SLEEP
Set the SLEEP TIMER.
16
(MUTE)
Mute the sound.
17
0 – 9
TV/External input mode: Set the channel.
TELETEXT mode: Set the page.
TELETEXT mode: Set the page.
18
(Digit for channel select)
Change the digits of the selected TV channel.
19
Colour (RED/GREEN/YELLOW/BLUE)
TELETEXT mode: Select a page.
20
CH
/
CH
(
/
)
TV/External input mode: Select the channel.
TELETEXT mode: Set the page.
TELETEXT mode: Set the page.
21
(TOP Overview for TELETEXT)
TELETEXT mode: Display an index page for CEEFAX/FLOF
information. TOP OVER VIEW for TOP programme.
information. TOP OVER VIEW for TOP programme.
22
(TELETEXT)
Select the TELETEXT mode. (all TV image, all TEXT image, TV/TEXT
image)
image)
23
RETURN
MENU mode: Return to the previous menu screen.
24
ENTER
Execute a command.
Return to the initial image position after moving with
Return to the initial image position after moving with
/
/
/
.
25
/
/
/
(Cursor)
Select a desired item on the setting screen.
Move the picture on the screen.
Move the picture on the screen.
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
11
12
14
15
15
13
16
17
18
19
19
20
21
22
23
24
21
22
23
24
25
Remote control unit
• When using the remote control unit, point it
at the Plasma Display TV (Panel Unit).
*
“TV”, “INPUT1”, “INPUT2”, “INPUT3”,
“INPUT4” and “PC” modes can each store
the WIDE mode setting separately.
The same for AV mode and volume.
“INPUT4” and “PC” modes can each store
the WIDE mode setting separately.
The same for AV mode and volume.
(PZ-50HV2/2E)
'
'
"
" \ |
' " \ |
NOTE
Click on the first or last page to see other PZ-50HV2E (serv.man34) service manuals if exist.