JVC HV-32-D-25-EUW Service manual
52068200212
HV-32D25EUW
HV-32D25EJW
SERVICE MANUAL
COLOUR TELEVISION
BASIC CHASSIS
HV-32D25EUW
MK
HV-32D25EJW
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SERVICE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.
No.52068
2002/12
HV-32D25EUW
HV-32D25EJW
SPECIFICATION
Item
Dimensions (W x H x D) 94.6cm x 56.2cm x 55.1cm
Mass 58.0kg
TV RF System CCIR B/G, I, D/K, L/L’
Colour System PAL / SECAM / NTSC
*The EXT terminals also support the NTSC 3.58MHz/4.43MHz system.
Stereo System A2 (B/G, D/K) / NICAM (B/G, I, D/K, L)
Teletext System FLOF(Fastext), TOP, WST(World Standard system)
Receiving Frequency VHF
UHF
CATV
Intermediate Frequency VIF
SIF
Colour Sub Carrier
Frequency
Power Input AC 220V~AC240V, 50Hz
Power Consumption Max 300W / Avg. 160W
Aerial Input 75 ohm unbalanced, coaxial
Picture Tube Visible size 76 cm(measured diagonally) Aspect ratio 16:9
High Voltage 31.0kV 0.2kV (At beam current : 0uA )
Speaker MAIN
EXT-1 (Input/Output) 21 pin Euro connector (SCART socket)
EXT-2 (Input/Output) 21 pin Euro connector (SCART socket)
EXT-3 (Input/Output) 21 pin Euro connector (SCART socket)
EXT-4 (Input) Component
EXT-5 (Input) Video 1V(p-p), 75 ohm RCA pin jack x 1
DIGITAL AUDIO INPUT OPTICAL x 1
AUDIO OUT (Variable) 0~1V(rms), Low Impedance RCA pin jack x 3
SURROUND REAR OUT 7.5W + 7.5W, 8 ohm (push terminal)
Headphone jack Stereo mini jack (Ø3.5mm)
Remote Control Unit RM-C61 (AAA/R03 Dry cell battery x 2) : HV-32D25EUW
PAL
SECAM
NTSC
CENTER
WOOFER
video
Audio (L/R) 500mv(rms) (-4dBs), High Impedance RCA pin jack x 2
Audio (L/R) 500mv(rms) (-4dBs), High Impedance RCA pin jack x 2
S-Video Mini DIN 4-pin
47MHz ~ 470MHz
470MHz ~ 862MHz
116MHz ~ 172MHz / 220MHz ~ 469MHz
38.9MHz(B/G, D/K, I) / 33.95MHz(L’)
33.4MHz(5.5MHz:B/G) / 32.9MHz(6.0MHz:I) / 32.4MHz(6.5MHz:L,D/K) /
40.45MHz(6.5MHz:L’)
4.43MHz
4.40625MHz / 4.25MHz
3.58MHz / 4.43MHz
10W + 10W, 13 cm x 6.5 cm oval x2
7.5W, 16 cm x 4 cm oval x 1
18W, 13 cm round x 1
• Video input, Audio L/R inputs and RGB inputs are available.
• TV broadcast outputs (Video and Audio L/R) are available.
• Video input, S-Video (Y/C) input, Audio L/R inputs and RGB inputs are available.
• Video and Audio L/R outputs are available.
• T-V LINK functions are available.
• Video input, S-Video (Y/C) input and Audio L/R inputs are available.
RCA pin jack x 3
Y : 1V(p-p), 75 ohm
Pb / B-Y: 0.7V(p-p), 75 ohm
Pr / R-Y : 0.7V(p-p), 75 ohm
Progressive-scanning signals(626p or 525p) are available
Y : 1V(p-p) Positive (Negative sync provided), 75 ohm
C : 0.286V(p-p) (burst signal), 75 ohm
COAXIAL x 1 (Dolby Digital is available.)
RM-C62 (AAA/R03 Dry cell battery x 2) : HV-32D25EJW
HV-32D25EUW HV-32D25EJW
Content
47MHz ~ 470MHz (IRELAND only)
470MHz ~ 862MHz
-
-
Design & specifications are subject to change without notice.
Manufactured under license from Dolby Laboratories Licensing Corporation.
"Dolby" and the double-D symbol ( )are trademarks of Dolby Laboratories Licensing Corporation.
2
21-pin Euro connector (SCART) : EXT-1/EXT-2/EXT-3
PinNo. Signal Designation Matching Value EXT-1 EXT-2 EXT-3
1 AUDIO R output 500mV(rms) (Nominal),
Used (TV OUT) Used (LINE OUT) NC
Low impedance
2 AUDIO R input 500mV(rms) (Nominal),
Used Used Used
High impedance
3 AUDIO L output 500mV(rms) (Nominal),
Used (TV OUT) Used (LINE OUT) Not used
Low impedance
4 AUDIO GND Used Used Used
5 GND (B) Used Used Used
6 AUDIO L input 500mV(rms) (Nominal),
Used Used Used
High impedance
7 B input 700mV
8 FUNCTION SW
(SLOW SW)
Low : 0V-3V, High : 8V-12V,
High impedance
, 75 ohm Used Used Not used
(B-W)
Used Used Used
9 GND (G) Used Used Used
10 SCL Not used Used (SCL2) Used (SCL3)
11 G input 700mV
, 75 ohm Used Used Not used
(B-W)
12 SDA Not used Used(SDA2) Used(SDA3)
13 GND (R) Used Used Used
14 GND (YS) Used Not used Not used
15 R / C input R : 700mV
C : 300mV
16 Ys input
(FAST SW)
Low : 0V-0.4V, High : 1V-3V,
75 ohm
(B-W)
(P-P)
, 75 ohm
, 75 ohm
Used (R) Used (C2/R) Used (C3)
Used Used Not used
17 GND (VIDEO output) Used Used Used
18 GND (VIDEO input) Used Used Used
19 VIDEO output 1V
(Negative going sync),
(P-P)
Used (TV OUT) Used (LINE OUT) Not used
75 ohm
20 VIDEO / Y input 1V
(Negative going sync),
(P-P)
Used Used Used
75 ohm
21 COMMON GND Used Used Used
HV-32D25EUW
HV-32D25EJW
(P-P= Peak to Peak, B-W= Blanking to white peak)
[Pin assignment]
20 18 16 14 12 10 8 6 4 2
21 19 17 15 13 11 9 7 5 3 1
3
HV-32D25EUW
HV-32D25EJW
SECTION 1
SAFETY PRECAUTIONS
1.1 HV-32D25EUW
(1) The design of this product contains special hardware,
many circuits and components specially for safety purposes. For continued protection, no changes should be made
to the original design unless authorized in writing by the
manufacturer. Replacement parts must be identical to
those used in the original circuits. Service should be performed by qualified personnel only.
(2) Alterations of the design or circuitry of the products should
not be made. Any design alterations or additions will void
the manufacturer's warranty and will further relieve the
manufacturer of responsibility for personal injury or property damage resulting therefrom.
(3) Many electrical and mechanical parts in the products have
special safety-related characteristics. These characteristics are often not evident from visual inspec tion nor can the
protection afforded by them necessarily be obtained by
using replacement components rated for higher voltage,
wattage, etc. Replacement parts which have these special
safety characteristics are identified in the parts list of Service manual. Electrical components having such fea-
tures are identified by shading on the schematics and
by ( ) on the parts list in Service manual. The use of
a substitute replacement which does not have the same
safety characteristics as the recommended replacement
part shown in the parts list of Service manual may cause
shock, fire, or other hazards.
(4) Don't short between the LIVE side ground and ISO-
LATED (NEUTRAL) side ground or EARTH side
ground when repairing.
Some model's power circuit is partly different in the GND.
The difference of the GND is shown by the LIVE : ( ) side
GND, the ISOLATED (NEUTRAL) : ( ) side GND and
EARTH : ( ) side GND.
Don't short between the LIVE side GND and ISOLATED
(NEUTRAL) side GND or EARTH side GND and never
measure the LIVE side GND and ISOLATED (NEUTRAL)
side GND or EARTH side GND at the same time with a
measuring apparatus (oscilloscope etc.).
If above note will not be kept, a fuse or any parts will be
broken.
(5) If any repair has been made to the chassis, it is recom-
mended that the B1 setting should be checked or adjusted
(See ADJUSTMENT OF B1 POWER SUPPLY).
(6) The high voltage applied to the picture tube must conform
with that specified in Service manual. Excessive high voltage can cause an increase in X-Ray emission, arcing and
possible component damage, therefore operation under
excessive high voltage conditions should be kept to a minimum, or should be prevented. If severe arcing occurs, remove the AC power immediately and determine the cause
by visual inspection (incorrect installation, cracked or melted high voltage harness, poor soldering, etc.). To maintain
the proper minimum level of soft X-Ray emission, components in the high voltage circuitry including the picture tube
must be the exact replacements or alternatives approved
by the manufacturer of the complete product.
(7) Do not check high voltage by drawing an arc. Use a high
voltage meter or a high voltage probe with a VTVM. Discharge the picture tube before attempting meter connection, by connecting a clip lead to the ground frame and
connecting the other end of the lead through a 10k 2W
resistor to the anode button.
(8) When service is required, observe the original lead dress.
Extra precaution should be given to assure correct lead
dress in the high voltage circuit area. Where a short circuit
has occurred, those components that indicate evidence of
overheating should be replaced.
Always use the manufacturer's replacement components.
(9) Isolation Check
(Safety for Electrical Shock Hazard)
After re-assembling the product, always perform an isolation check on the exposed metal parts of the cabinet (antenna terminals, video/ audio input and output terminals,
Control knobs, metal cabinet, screw heads, earphone
jack, control shafts, etc.) to be sure the product is safe to
operate without danger of electrical shock.
a) Dielectric Stren gth Tes t
The isolation between the AC primary circuit and all metal
parts exposed to the user, particularly any exposed metal
part having a return path to the chassis should withstand
a voltage of 3000V AC (r.m.s.) for a period of one second.
(. . . . Withstand a voltage of 1100V AC (r.m.s.) to an ap-
pliance rated up to 120V, and 3000V AC (r.m.s.) to an appliance rated 200V or more, for a period of one second.)
This method of test requires a test equipment not generally found in the service trade.
b) Leakage Current Check
Plug the AC line cord directly into the AC outlet (do not use
a line isolation transformer during this check.). Using a
"Leakage Current Tester", measure the leakage current
from each exposed metal part of the cabinet, particularly
any exposed metal part having a return path to the chassis, to a known good earth ground (water pipe, etc.). Any
leakage current must not exceed 0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.2mA AC
(r.m.s.).
Alternate Check Method
Plug the AC line cord directly into the AC outlet (do not
use a line isolation transformer during this check.). Use
an AC voltmeter having 1000 ohms per volt or more sensitivity in the following manner. Connect a 1500 ohm
10W resistor paralleled by a 0.15µF AC-type capacitor
between an exposed metal part and a known good earth
ground (water pipe, etc.). Measure the AC voltage across
the resistor with the AC voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and
measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Any voltage measured must not exceed 0.75V AC
(r.m.s.). This corresponds to 0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.3V AC
(r.m.s.). This corresponds to 0.2mA AC (r.m.s.).
AC VOLTMETER
(HAVING 1000Ω/V,
OR MORE SENSITIVITY)
0.15uF AC-TYPE
PLACE THIS PROBE
1500Ω 10W
GOOD EARTH GROUND
ON EACH EXPOSED
METAL PART
4
HV-32D25EUW
HV-32D25EJW
1.2 HV-32D25EJW [UK VERSION]
(1) The design of this product contains special hardware and many circuits and components specially for safety purposes. For
continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the origina l circuits. Service should be performed by qualified personnel
only.
(2) Alterations of the design or circuitry of the product should not be made. Any design alterations or additions will void the manu-
facturer's warranty and will further relieve the manufacturer of resp onsibility for personal injury or property damage resulting
therefrom.
(3) Many electrical and mechanical parts in the product have special safety-related characteristics. These characteristics are often
not evident from visual inspection nor can the protection afforded by them necessary be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified
in the Parts List of Service Manual. Electrical components having such features are identified by sh ading on the schematics
and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety
characteristics as the recommended replacement part shown in the Parts List of Service Manual may cause shock, fire, or other
hazards.
(4) The leads in the products are routed and dressed with ties, clamps, tubing’s, barriers and the l ike to be separated from liv e
parts, high temperature parts, moving parts and / or sharp edges for th e prevention of electric shock and fi re hazard. When
service is required, the original lead routing and dress should be observed, an d it should be confirmed that they have been
returned to normal, after re-assembling.
WARNING
(1) The equipment has been designed and manufactured to meet international safety standards.
(2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
(3) Repairs must be made in accordance with the relevant safety standards.
(4) It is essential that safety critical components are replaced by approved parts.
(5) If mains voltage selector is provided, check setting for local voltage.
5
HV-32D25EUW
HV-32D25EJW
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 MAIN DIFFERENCE LIST
ITEM HV-32D25EUW HV-32D25EJW
POWER CORD QMPK160-185-JC QMPN130-185-JC
REMOTE CONTROL UNIT RM-C61-1C RM-C62-1C
LCT1272-001A-U
INST BOOK
RATING LABEL LC11548-003A-U LC11364-018A-U
EURO LABEL AEM1064-034-E AEM1064-035-E
2.1.1 FEATURES
• DIST (Digital Image Scaling Technology) employs an interpolat ion method that doubles the scanning lines to realize 1250-line
flicker-free picture making it especially suitable for reproducing high-resolution pictures even on large-scre en displays.
• New chassis design enables use of an interactive on-screen control.
• Pure flat CRT produces fine textured picture in every detail.
• With AUDIO/VIDEO/COMPONENT input terminals.
2
C bus control utilizes single chip ICs.
•I
• By means of AUTO PROGRAM, the TV stations can be selected automatically and the TV channels can al so be rearranged
automatically.
LCT1273-001A-U
LCT1274-001A-U
LCT1271-001A-U
6
2.2 SYSTEM BLOCK
HV-32D25EUW
HV-32D25EJW
IC004
MEMORY
IC201
SYNC.SEP.
IC101
COMPONENT SW
TU002
SUB TUNER
SDA 0
SCL 0
IC001
MICRO COMPUTER
SDA 2
SCL 2
SDA 1
SCL 1
DOLBY PWB AV SW PWB
MICOM
PWB
IC301
PROCESSOR
TU001
MAIN
TUNER
TONE/VOL
(MAIN L/R)
MAIN
PWB
RGB
IC601
IC501
MULTISOUND
PROCESSOR
IC101
AV SW
IC003
A-D CONVERT
SDA 3
SCL 3
IC201
DIGITAL
ENHANCER
SDA 3
SCL 3
IC651
TONE/VOL
(SUB L/R)
IC631
TONE/VOL
(CENTRE/WOOFER)
DIST PWB
IC101
DIST
7
HV-32D25EUW
HV-32D25EJW
2.3 FUNCTIONS
2.3.1 FRONT CONTROL & REAR (SIDE) TERMINAL
Refer to the pages in brackets for details.
Remote control sensor
Power lamp (GREEN : Operation, RED : Stand-by)
Main power button
Headphone jack (mini jack)
Channel up/down & Volume +/- buttons
Volume button
EXT-5 terminal
S
E
P
X
L
T
5
R
S
E
P
X
L
T
5
R
2.3.2 REAR TERMINAL
Woofer terminal
AUDIO OUT terminal
SURROUND REAR terminal
EXT-1 terminal
EXT-2 terminal
EXT-3 terminal
EXT-4 terminal
Aerial socket
DIGITAL AUDIO IN terminal
8
2.3.3 REMOTE CONTROL UNIT
RM-C62 : HV-32D25EJW RM-C61 : HV-32D25EUW
HV-32D25EUW
HV-32D25EJW
123
456
7809
MULTI
FREEZE
SUB-P
123
456
7809
FREEZE
SUB-P
Muting button
Number buttons
ZOOM button
3D sound button
Information button
TV button
buttons
Standby button
Colour buttons
OK button
buttons
VCR/DVD/Teletext control button
VCR DVD switch
(Text) button
PIP button
FREEZE button
SUB-P / button
SWAP button
MULTI button
Muting button
Number buttons
ZOOM button
3D sound button
Information button
TV button
buttons
Standby button
Colour buttons
OK button
buttons
VCR/DVD/Teletext control button
VCR DVD switch
(Text) button
PIP button
FREEZE button
SUB-P / button
button
button
9
HV-32D25EUW
HV-32D25EJW
2.4 DISASSEMBLY PROCEDURE
2.4.1 REMOVING THE SUB WOOFER UNIT & THE REAR
COVER
(1) Unplug the power cord.
(2) Remove the SUB WOOFER CORD from the TERMINAL
AV TERMINAL BOARD.
(3) Pull up the SUB WOOFER UNIT on the top of the REAR
COVER upward.
(4) Remove the 13 screws [A] as shown in the Fig. 1
(5) Withdraw the REAR COVER toward you.
2.4.2 REMOVING THE SIDE CONTROL JACK ASSEMBLY
*Remove the REAR COVER.
(1) Remove the 1 screw [B] as shown in the Fig.1.
(2) While slightly raise the SIDE CONTROL JACK ASSEMBLY,
remove the 2 claws under the SIDE CONTROL JACK
ASSEMBLY.
(3) Disconnect the connector F and CN8016 as shown in Fig.
2.
2.4.3 REMOVING THE SIDE CONTROL PWB
* Remove the REAR COVER.
* Remove the SIDE CONTROL ASSEMBLY.
(1) Remove the 3 claws [C] from back side of the SIDE
CONTROL JACK ASSEMBLY as shown in Fig. 2.
(2) Pull out the SIDE CONTROL PWB.
(2) Remove the 4 screws [G] attaching the SIDE SPEAKER.
(3) Follow the same steps when removing the other hand
speaker.
2.4.8 REMOVING THE AV TERMINAL BOARD
* Remove the REAR COVER.
(1) Remove the 8 screws [H] as shown in the Fig. 1.
(2) Remove the 3 claws [ I ] under the CHASSIS as shown in
Fig. 3
(3) Remove the AV TERMINAL BOARD slightly in the
direction of arrow [J] as shown in Fig. 3.
(4) After re moving the 1 clow [K] on the connector for SUB
WOOFERS pull out the connector for SUB WOOFER.
(Fig. 4)
J
AV
TERMINAL
BOARD
AV SW PWB
I
C
SIDE
F Connector
CN8016 Connector
CONTROL
PWB
C
(Back view)
Fig.2
2.4.4 REMOVING THE MAIN CHASSIS
* Remove the REAR COVER.
(1) Slightly raise the both sides of the MAIN CHASSIS by
hand and remove the two claws under the both sides of
the MAIN CHASSIS from the front cabinet
(2) Withdraw the MAIN CHASSIS backward.
(If necessary, take off the wire clamp, connectors etc.)
2.4.5 REMOVING THE POWER & DEF. PWB
* Remove the MAIN CHASSIS.
(1) Remove the 3 screws [D] as shown in Fig. 1.
(2) Remove the POWER & DEF. PWB upper.
(If necessary, take off the wire clamp, connectors etc.)
2.4.6 REMOVING THE CENTER SPEAKER
* Remove the REAR COVER
* Remove the MAIN CHASSIS.
(1) Remove the 2 screws [E] as shown in Fig. 1.
(2) Remove the CENTER SPEAKER. If necessary, detach
the cables.
2.4.7 REMOVING THE SIDE SPEAKER
*Remove the REAR COVER
(1) Remove the 2 screws [F], and remove the speaker
adapter as shown in Fig. 1
NOTE:
When removing the 2 screws marked [F] of the speaker
adapter remove the lower side screw first, and then
remove the upper one
I
Fig.3
WOOFER
CORD
K
AV TERMINAL BOARD
K
CONNECTOR for
SUB WOOFER
SUB WOOFER
CORD
Fig.4
2.4.9 CHECKING THE PW BOARD
(1) Pull out the MAIN CHASSIS. (Refer to REMOVING THE
MAIN CHASSIS)
(2) Erect the MAIN CHASSIS vertically so th at you can easi ly
check the back side of the PW board.
CAUTION:
• When erecting the MAIN CHASSIS, be careful so that
there will be no contacting with other PW board.
• Before turning on power, make sure that the wire connector
is properly connected.
• When conducting a check with power supplied, be sure to
confirm that the CRT EARTH WIRE (BRAIDED ASS.Y) is
connected to the CRT SOCKET PW board.
2.4.10 WIRE CLAMPING AND CABLE TYING
(1) Be sure to clamp the wire.
(2) Never remove the cable tie used for tying the wires
together. Should it be inadvertently removed, be sure to tie
the wires with a new cable tie.
10
HV-32D25EUW
HV-32D25EJW
F
FRONT CABINET
Fig. 2
SIDE CONTROL JACK
ASSEMBLY
SPEAKER
ADAPTER
G
( 4)
SIDE
O
CRT S
PWB
FRONT
CONTRO
PWB
MAIN
CENTER
SPEAKER
PWB
CKET
LINE FILTER PWB
MICOM
PWB
L
CLOW
AV SW
PWB
D
( 3)
DOLBY PWB
12
CLOW
Fig.4
POWER & DE
DEF OSC PWB
EHT PWB
DIST PWB
SPEAKER
F. PWB
CHASSIS BASE
AV TERMINAL
BOARD
H
(
8)
B
E
( 2)
REAR COVER
A
(
Fig.1
SUB WOOFER
13)
POWER
CORD
UNIT
SUB WOOFER
CORD
11
HV-32D25EUW
HV-32D25EJW
2.4.11 REMOVING THE CRT
Note:
• Replacement of the CRT should be performed by 2 or more
persons.
• After removing the REAR COVER, CHASSIS etc.,
(1) Putting the CRT change table on soft cloth, the CRT
change table should also be covered with such soft cloth
(shown in Fig. 5).
(2) While keeping the surface of CRT down, mount the TV set
on the CRT change table balanced will as shown in Fig. 6.
(3) Remove 4 screws marked by arrows with a box type
screwdriver as shown in Fig. 6.
Note:
Since the cabinet will drop when screws have been
removed, be sure to support the cabinet with hands.
(4) After 4 screws have been removed, put the cabinet slowly
on cloth (At this time, be carefully so as not to damage the
front
surface of the cabinet) shown in Fig. 7.
Note:
• The CRT should be assembled according to the
opposite sequence of its dismounting steps.
• The CRT change table should preferably be smaller
that the CRT surface, and its height be about 35cm.
CRT CHANGE TABLE
CLOTH
CRT
CHANGE
TABLE
Fig.5
CRT
Fig.6
APPROX.
35cm
BOX
TYPE
SCREW
DRIVER
CRT
CABINET
CRT
CHANGE T ABLE
Fig.7
CAUTION
The woofer unit is mounted on the TV. Always move the TV and woofer unit together when removing the TV from the box, or when
moving the woofer unit.
If the TV is tilted during movement the woofer unit may fall. Be careful to keep the TV level when moving it.
Do not grip the woofer unit when moving the TV.
Do not place objects on the woofer unit duct.
LIFTING CAUTION
FREE WOOFER UNIT
KEEP STAY UNIT
12
2.5 REPLACEMENT OF MEMORY ICs
2.5.1 MEMORY ICs
This TV use memory ICs. In the memory ICs, there are
memorized data for correctly operating the video and deflection
circuits. When replacing memory ICs, be sure to use ICs written
with the initial values of data
2.5.2 PROCEDURE FOR REPLACING MEMORY ICs
(1) Power off
Switch the power off and unplug the power cord from the
wall outlet
(2) Replace ICs.
Be sure to use memory ICs written with the initial data
values
(3) Power on
Plug the power cord into the wall outlet and switch the
power on.
(4) Setting of receive channels
Set the receive channel.
For setting, refer to the OPERATING INSTRUCTIONS.
(5) Setting of SERVICE MENU
a) Press the INFORMATION key and the MUTE key of
the REMOTE CONTROLUNIT simultaneously.
b) The SERVICE MENU screen of Fig. 1 will be
displayed.
c) When a desired number is selected, the following
menu will come up respectively.
Verify the setting items of the SERVICE MENU and reset
where necessary. for setting, refer to the SERVICE
ADJUSTMENTS.
(6) User settings
Check the user setting values of Table 1, and if setting
value is different, set the correct value.
For setting, refer to the OPERATING INSTRUCTIONS.
SERVICE MENU
SERVICE MENU
1. IF
3. AUDIO
5. VSM PRESET
7. VNR
9. SHIPPING(OFF)
1-9 : SELECT i : EXIT
2. V/C
4. DEF
6. STATUS
8. IP
0. BUS FREE
Fig.1
Names of key key
INFORMATION
MUTING
OK
FUNCTION UP/DOWN
FONCTION -/+
Fig.2
HV-32D25EUW
HV-32D25EJW
OK
13
HV-32D25EUW
HV-32D25EJW
2.5.3 USER SETTING VALUES (SHIPPING VALUES)
Setting item Setting value Setting item Setting value
MAIN POWER SW OFF PICTURE SETTING
SHIPPING CHANNEL PR1 PICTURE MODE BRIGHT
PRESET CHANNEL See ; OPERATING
INSTRUCTIONS.
ZOOM MODE PANORAMIC TINT NORMAL
SUB POWER ON
DISPLAY INDICATED INSTALL
SOUND LEVEL 10 LANGUAGE ENGLISH
PICTURE FEATURES
DIGITAL VNR AUTO SOUND
DIGIPURE PRO AUTO BASS CENTRE
COLOUR SYSTEM TV : Depends on PR/CH
EXT : AUTO
PICTURE TILT CENTRE DIGITAL SURROUND SURROUD OFF
N/S CANCEL CENTRE 3D PHONIC
4: 3 AUTO ASPECT PANORAMIC
PIP POSITION Right below
FEATURES
SLEEP TIMER OFF
BLUE BACK ON DOLBY DIGITAL
CHILD LOCK
ID NO
0000
ALL CH
DECODER (EXT-2) ALL CH: OFF
DUBBING EXT-1---->EXT-2
EXT SETTING
OFF
ID
NON(SPACE)
S-IN
NON(SPACE)
COLOUR TEMP NORMAL
EDIT PRESET CHANNEL ONLY
OTHER : NON (SPACE)
TREBLE CENTRE
BALANCE CENTRE
TV SPEAKER
SUB WOOFER
LEVEL
VOLUME
HEAD PHONE
VOLUME
TV SPEAKER
OUTPUT
TV SPEAKER
REAR SPEAKER
SUB WOOFER
TEST TONE
CENTRE
RIGHT
SURROUND
DELAY TIME
LEFT
L/C/R
OFF
CENTRE
MAX
20
OFF
MAIN
L/C/R
ON
OFF
OFF
MAX
MAX
MAX
MAX
0
14
Table 1
2.5.4 SERVICE MENU SETTING ITEMS
Setting item Setting value Setting item Setting value
1.IF 1.VCO
2.ATT ON/OFF
2. V/C 1.CUT OF R 12.TWN CONT
2.CUT OF G 13.COLOUR
3.CUT OF B 14.HUE
4.DRIVE R 15.BY GAIN
5.DRIVE G 16.TWN COL
6.DRIVE B 17.TWN TINT
7.TWN HI R 18.B OF MR
8.TWIN HI B 19.B OF MB
9.BRIGHT 20.B OF SR
10.CONT 21.B OF SB
11.TWN BRIG
3.AUDIO
(Do not adjust)
4.DEF 1.FREE-RUN 7.EW-PIN
5.VSM PRESET 1.CONT
1.ERR LIMIT
2.A2 ID THR
3.Q-PEAK SOUND SYSTEM
4.SOUND LEVEL
SOUND SYSTEM
2.V-SHIFT 8.COR-UP
3.V-SIZE 9.COR-LO
4.H-CENT 10.V.S-COR
5.H-SIZE 11.V-LIN
6.TRAPEZ
2.BRIGHT
3.SHARP
4.COLOUR
5.HUE
6.WDR R
7.WDR G
8.WDR B
6.STATUS (Do not adjust)
7.VNR
(Do not adjust)
8.IP
(Do not adjust)
9.SHIPPING (Do not select under the adjustment)
1.MYLV 10.MCCOR
2.ONMVF 11.CLTL
3.MYCOR 12.YNGA
4.MYGA 13.COR_OF
5.YEGON 14.LPF_OF
6.YEGL 15.YCTL
7.YLTL 17.YNCON
8.MCLV
9.MCGA
PPA001 - PPA008
PPB001 - PPB036
PPC001 - PPC007
ADS001 - ADS034
IPA001 - IPA120
IPB001 - IPB088
IPC001 - IPC044
IPD001 - IPD058
HV-32D25EUW
HV-32D25EJW
Table 2
15
HV-32D25EUW
HV-32D25EJW
2.6 REPLACEMENT OF CHIP COMPONENT
2.6.1 CAUTIONS
(1) Avoid heating for more than 3 seconds.
(2) Do not rub the electrodes and the resist parts of the pattern.
(3) When removing a chip part, melt the solder adequately.
(4) Do not reuse a chip part after removing it.
2.6.2 SOLDERING IRON
(1) Use a high insulation soldering iron with a thin pointed end of it.
(2) A 30w soldering iron is recommended for easily removing parts.
2.6.3 REPLACEMENT STEPS
1. How to remove Chip parts
[Resistors, capacitors, etc.]
(1) As shown in the figure, push the part with tweezers and
alternately melt the solder at each end.
2. How to install Chip parts
[Resistors, capacitors, etc.]
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the
solder. Then heat and melt the solder at both ends of the
chip part.
(2) Shift with the tweezers and remove the chip part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply extra solder to each lead.
SOLDER
SOLDER
(2) As shown in the figure, push the part with tweezers and
alternately melt the solder at each lead. Shift and remove
the chip part.
Note :
After removing the part, remove remaining solder from the
pattern.
[Transistors, diodes, variable resistors, etc.]
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the
solder.
(3) Fi r st solder lead A as indicated in the figure.
A
B
C
(4) Th en solder leads B and C.
A
B
C
16
HV-32D25EUW
HV-32D25EJW
SECTION 3
SERVICE ADJUSTMENTS
3.1 ADJUSTMENT PREPARATION
(1) There are 2 ways of adjusting this TV: One is with the REMOTE CONTROL UNIT and the other is the conventional method
using adjustment parts and components.
(2) The setting (adjustment) using the REMOTE CONTROL UNIT is made on the basis of the initial setting values. The setting
values which adjust the screen to the optimum condition can be different from the initial setting values.
(3) Make sure that connection is correctly made AC to AC power source.
(4) Turn on the power of the TV and measuring instrument for warming up for at least 30 minutes before starting adjustment.
(5) If the receive or input signal is not specified, use the most appropriate signal for adjustment.
(6) Never touch parts (such as variable resistors, transformers and condensers) not shown in the adjustment items of this service
adjustment.
(7) Preparation for adjustment (presetting):
Unless otherwise specified in the adjustment items, preset thefollowing functions with the REMOTE CONTROL UNIT:
Setting position
Setting item Setting value
PICTURE MODE NORMAL
DIGITAL VNR AUTO
DIGIPURE PRO AUTO
SLEEP TIMER OFF
TONE BALANCE CENTRE
DIGITAL SURROUND OFF
BLUE BACK OFF
ZOOM MODE FULL
3.2 MEASURING INSTRUMENT AND FIXTURES
• DC voltmeter (or Digital voltmeter)
• Oscilloscope
• Signal generator (Pattern generator) [PAL/SECAM/NTSC]
• Remote control unit
17
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HV-32D25EJW
3.3 ADJUSTMENT LOCATIONS
TOP
SIDE CONTROL PWB
MAIN PWB POWER&DEF PWB
DOLBY PWB
F
CN8016
FRONT CONTROL PWB
POWER SW
POWER
LED
D8801
F8901
POWER CORD
MICOM PWB
AV SW PWB
CN004
IC8851
LF8901
FRONT
FRONT
W
CN001
LINE FILETER PWB
W
LF9901
IC9931
X
X
P
P
MAIN
TUNER
CN013
CN008
DIST PWB
CN006
CN007
CRT SOCKET PWB
CN005
R2533
R2528
(SOLDER SIDE)
CN002
DEF OSC PWB
CN003
X-RAY ADJ
EHT ADJ
EHT
PWB
CN009
CN2010
EHT
PWB
FOCUS
SCREEN
T551
HYT
S1
15
1 GND
2 N.C.
3 X-ray
4 N.C.
5 B1
18
TP-R
TP-G
TP-E1
TP-B
TOP
R3040
FOCUS
(HORIZONTAL)
HV-32D25EUW
HV-32D25EJW
3.4 BASIC OPERATION IN SERVICE MENU
3.4.1 TOOL OF SERVICE MENU OPERATION
Operate the SERVICE MENU with the remote control unit.
3.4.2 SERVICE MENU ITEMS
With the SERVICE MENU,various settings (adjustments)can be made,and they are broadly classified in the fo llowing items of settings:
1.IF This mode adjusts the setting values of the IF circuit.
2.V/C This mode adjusts the setting values of the VIDEO / CHROMA circuit.
3.AUDIO This mode adjusts the setting values of the SOUND circuit.
It is not requirement to adjustment. (Setting only)
4.DEF This mode adjusts the setting values of the DEFLECTION circuit for each aspect mode given
5.VSM PRESET This mode adjusts the initial setting values of Bright, Standard & Soft. (VSM: Video Status Memory)
6.STATUS It is no requirement to adjustment.
7.VNR This mode adjusts the setting values of the DIGITAL circuit.
It is not requirement to adjustment. (Setting only)
8.IP This mode adjusts the setting values of the IP circuit.
It is not requirement to adjustment. (Setting only)
9.SHIPPING(OFF) Don't select under the adjustment.as this menu is set in "ON" after the inspection.
Note:
When users press the MAIN POWER button, the JVC logo appears.
If they press any keys, the LANGUAGE menu appears.
10.BUS FREE It is not requirement to adjustment.
19
HV-32D25EUW
HV-32D25EJW
3.4.3 BASIC OPERATION IN SERVICE MENU
(1) How to enter SERVICE MENU
Press the [INFORMATION] key and the [MUTE] key of the
REMOTE CONTROL UNIT simultaneously, and the
SERVICE MENU screen of Fig. 1 will be displayed.
(2) Selection of SUB MENU SCREEN
Press one of keys [1~5] of the REMOTE CONTROL UNIT and
select the SUB MENU SCREEN (See Fig. 3), form the
SERVICE MENU.
SERVICE MENU ---> SUB MENU
•1. IF
•2. V/C
• 3. AUDIO (Do not adjust)
•4. DEF.
• 5. VSM PRESET
•6. STATUS (Do not adjust)
•7. VNR (Do not adjust)
•8. IP (Do not adjust)
• 9. SHIPPING (OFF) (Do not adjust)
• 0. BUS FREE (Do not adjust)
SERVICE MENU
SERVICE MENU
1. IF
3. AUDIO
5. VSM PRESET
7. VNR
9. SHIPPING(OFF)
1-9 : SELECT i : EXIT
2. V/C
4. DEF
6. STATUS
8. IP
0. BUS FREE
Fig.1
Names of key key
INFORMATION
MUTING
OK
OK
(3) Method of Setting
1) Method of Setting 1.IF
[1.VCO] : It must not adjust without signal.
Key Function
(a) [1] Select 1.1F
(b) [1] Select 1.VCO (CW)
Make sure that the arrow position between the ABOVE REF and BELOW REF.
(c) [INFORMATION] Return to the SERVICE MENU screen.
2) Method of setting 2.V/C, 3.AUDIO, 4.DEF and 5.VSM PRESET.
Key Function
(a) [2~5] Select one from 2.V/C, 3.AUDIO, 4.DEF and 5.VSM PRESET.
(b) FUNCTION UP /
Select setting items.
DOWN ( )
(c) FUNCTION -/+
Set (adjust) the setting values of the setting items.
( )
(d) OK Memorize the setting value.
(Before storing the setting values in memory, do not press the CH, TV, POWER ON
/ OFF key if you do, the values will not be stored in memory.)
(e) INFORMATION Return to the SERVICE MENU screen.
3) Do not setting 6.STATUS, 7.VNR, 8.IP, 9.SHIPPING (OFF) and 0.BUS FREE.
FUNCTION UP/DOWN
FONCTION -/+
Fig.2
(4) Release of SERVICE MENU
After completing the setting, return to the SERVICE MENU, then again press the [INFORMATION] key.
20
SERVICE MENU
SERVICE MENU
1. IF 2. V/C
3. AUDIO 4. DEF
5. VSM PRESET 6. STATUS
7. VNR 8. IP
9. SHIPPING (OFF) 0. BUS FREE
1-9 : SELECT : EXITi
HV-32D25EUW
HV-32D25EJW
1. FREE-RUN
2. V-SHIFT
3. V-SIZE
4. H-CENT
5. H-SIZE
6. TRAPEZ
7. EW-PIN
8. COR-UP
9. COR-LOW
10. V-S.CR
11. V-LIN
PICTURE MODE
BRIGHT
STD
SOFT
COLOR TEMP
COOL
NORM
WARM
4. DEF
DEF FULL 1250i
1. V-SHIFT
- / +
- / +
: STORE i : EXIT
OK
5. VSM PRESET
VSM PRESET NORMAL
1.CONT
OK
: STORE i : EXIT
1.IF(VCO)
IF SERVICE MENU
1. VCO
2. ATT ON/OFF
1-2 : SELECT i : EXIT
2. V/C
V/C
1. CUT OF R
OK
- / +
- / +
: STORE i : EXIT
AUDIO
1. ERROR LIMIT 0100
ERROR LIMIT =
C_AD_BITS =
OK
: STORE i : EXIT
PAL
3. AUDIO
Do not move
1. CUT OF R
2. CUT OF G
3. CUT OF B
4. DRIVE R
5. DRIVE G
6. DRIVE B
7. TWN HI R
8. TWIN HI B
9. BRIGHT
10. CONT
11. TWN BRIG
Do not adjust
1. ERR LIMIT
2. A2 ID THR
3. Q
PEAK
4. SOUND LEVEL
12. TWN CONT
13. COLOUR
14. HUE
15. BY GAIN
16. TWN COL
17. TWN TINT
18. B OF MR
19. B OF MB
20. B OF SR
21. B OF SB
1. CONT.
2. BRIGHT
3. SHARP
4. COLOUR
5. HUE
6. WDR R
7. WDR G
8. WDR B
Fig.3 SERVICE MENU SCREEN
21
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HV-32D25EJW
3.5 ADJUSTMENTS
3.5.1 CHECK ITEM
Item
B1 POWER
SUPPLY
Check
Mesuring
instrument
Signal
generator
DC voltmeter
Remote
control unit
Test point Adjustment part Description
CN0S1
connector
pin-1 (GND)
2. V/C -->
1. CUT OF R
(1) Receive any broadcast.
(2) Select 2. V/C from the SERVICE MENU.
(3) Select 1. CUT OF R.
(4) Press the [YELLOW] key to display a signal
CN0S1
connector
pin-5 (B1)
[POWER & DEF
horizontal line.
(5) Connect the voltmeter between 5pin (B1), and 1pin
(GND) of the connector CN0S1.
(6) Confirm that the voltage is DC185V 2V.
PWB]
VCO Check Remote
control unit
IF SERVICE MENU
1. VCO
2. ATT
1-2 : SELECT
VCO( CW)
TOO HIGH
ABOVE REF
JUST REF
BELOW REF
TOO LOW
MAIN SUB
i : EXIT
****
MHz
: EXIT
1. IF -->
1. VCO
The arrow position
mean AFC voltage level.
• Under normal conditions, no adjustment is required.
(1) Receive any broadcast.
(2) Select 1.IF from the SERVICE MENU.
(3) Select 1.VCO.
(4) Check the arrow position of MAIN between the
“ABOVE REF.” and “BELOW REF.” .
(5) Check the arrow position of SUB between the
“ABOVE REF.” and “BELOW REF.”.
22
3.5.2 HIGH VOLTAGE
HV-32D25EUW
HV-32D25EJW
Item
HIGH VOLTAGE Signal
3.5.3 X-RAY PROTECTOR
Item
X-RAY
PROTECTION
Mesuring
instrument
generator
HV voltmeter
Remote
control unit
Mesuring
instrument
Signal
generator
DC voltmeter
Test point Adjustment part Description
CRT anode
Chassis GND
Test point Adjustment part Description
CN0S1
connector
pin-1 (GND)
CN0S1
connector
pin-3 (X-RAY)
[POWER & DEF
PWB]
2. V/C -->
1. CUT OF R
EHT VR (R2528)
[EHT PWB]
X-RAY VR (R2533)
[EHT PWB]
(1) Receive any broa dcast.
(2) Select 2. V/C from the SERVICE MENU.
(3) Select 1. CUT OF R.
(4) Press the [YELLOW] key to display a signal
horizontal line.
(5) Connect a HV voltmeter between CRT ANODE
and chassis GND
(6) Adjust EHT VR so that the voltage is 31.0kV
0.2kV.
(1) Receive any broa dcast.
(2) Co nnect a DC voltmeter between pin1 and pin3 of
the connector CN0S1.
(3) Adjust X-RAY VR so that the voltage value is 4.9V
0.2V.
3.5.4 HORIZONTAL FREQUENCY
Item
HORIZONTAL
FREQUENCY
Mesuring
instrument
Signal
generator
Remote
control unit
Test point Adjustment part Description
4.DEF -->
1. FREE-RUN
(1) Receive the cross-hatch signal.
(2) Set the FULL mode.
(3) Select 4. DEF from the SERVICE MENU.
(4) Select 1.FREE-RUN.
(5) Adj ust so that the movement of the picture slows
most while watching the picture.
(6) Press th e [OK] key and memorized the set data.
23
HV-32D25EUW
HV-32D25EJW
3.5.5 FOCUS
Item
FOCUS Signal
Mesuring
instrument
generator
Remote
control unit
FOCUS1
FOCUS2
Test point Adjustment part Description
FOCUS 1 VR
[HVT]
FOCUS 2 VR
(R3040)
[CRT SOCKET
PWB]
(1) Receive the cross-hatch signal
(2) Set the FULL mode.
(3) By turning the FOCUS 1 VR, adjust the picture so
that the “ “ part horizontal line may become
thinnest.
(4) By turning the FOCUS 2 VR, adjust the picture so
that the most outside vertical line may become
thinnest.
(5) Carry out adjustment by repeating the steps 3 and
4 above.
(6) Make sure that the screen is darkened, the lines
remain in good focus.
FOCUS1
SCREEN
3.5.6 VSM PRESET ADJUST SETTING
Item
VSM PRESET
setting
SETTING VALUES OF VSM PRESET
1.CONT+12+5-8---
2.BRIGHT-200---
3.SHARP00-2---
4.COLOUR 0 0 -2 - - -
5.HUE 000- - -
6.WDR R - - - -4 0 +8
7.WDR G - - - 0 0 0
8.WDR B - - - +8 0 -1
Mesuring
instrument
Remote
control unit
BRIGHT STD SOFT COOL NORMAL WARM
Test point Adjustment part Description
5. VSM PRESET -->
1. CONT
2. BRIGHT
3. SHARP
4. COLOUR
5. HUE
6. WDR R
7. WDR G
8. WDR B
PICTURE MODE COLOUR TEMP
(1) Select 5. VSM PRESET from the SERVICE MENU.
(2) Select the PICTURE MODE to BRIGHT.
(3) Adjust to bring the set values of 1. CONT to 5. HUE
to the values shown in the table.
(4) Press the [OK] key and memorize the set value.
(5) Respectively select PICTURE MODE for SOFT
and STD, and make similar adjustment as step 3
and 4 in above.
(6) Select the COLOUR TEMP to COOL.
(7) Adjust to bring the set values of 6. WDR R to 8.
WDR B to the values shown in the table.
(8) Press the [OK] key and memorize the set value.
(9) Respectively select COLOUR TEMP for WARM
and NORMAL, and make similar adjustment as
step 7 and 8 in above.
24
HV-32D25EUW
HV-32D25EJW
3.5.7 VIDEO / CHROMA CIRCUIT ADJUSTMENT
The setting (adjustment) using the remote control unit is made on the basis of the in itial setting values.
The setting values which adjust the screen to the optimum condition can be different from the initial setting values.
Setting item
(Adjustment item)
TV EXT-1 / EXT-2 / EXT-3 / EXT-5 EXT-4
PAL SECAM PAL SECAM NTSC 625i 525i 625p 525p
1.CUT OF R 8888888888[0][0][0][0]
2.CUT OF G 8888888888[0][0][0][0]
3.CUT OF B 8888888888[0][0][0][0]
4.DRIVE R 6464646464[0][0][0][0]
5.DRIVE G 6464646464[0][0][0][0]
6.DRIVE B 6464646464[0][0][0][0]
7.TWN HI R 6767676767[-1][-1][-4][-4]
8.TWN HI B 6767676767[-1][-1][-1][-1]
9.BRIGHT 141 141 141 141 141 [-5] [-5] [-1] [-1]
10.CONT 7070707070[0][0][0][0]
11.TWN BRIG 76 76 76 76 76 [0] [0] [0] [0]
12.TWN CONT 77777[0][0][0][0]
13.COLOUR 60 60 [0] [0] 60 [0] [0] [0] [0]
14.HUE [32] [32] 32 32 32 [68] [68] [0] [0]
15.BY GAIN [43] [43] [0] [0] [43] [0] [ 0] [0] [0]
16.TWN COL 6 6 [0] [0] 6 - - - -
17.TWN TNT [32] [32] 32 32 32 - - - -
18.B OF MR [08] [08] [08] [08] [08] [08] [08] [08] [08]
19.B OF MB [08] [08] [08] [08] [08] [08] [08] [08] [08]
20.B OF MR [08] [08] [08] [08] [08] [08] [08] [08] [08]
21.B OF MB [08] [08] [08] [08] [08] [08] [08] [08] [08]
Mark [ ] : Fix (Do not move)
Item
WHITE
BALANCE
(Low light)
H. LINE OFF
R. LEVEL (
R. LEVEL (
Mesuring
instrument
Signal
generator
Remote
control unit
REMOTE CONTROL UNIT
123
)
456
)
789
Test point Adjustment part Description
2. V/C -->
1. CUT OF R
2. CUT OF G
3. CUT OF B
(1) Re ceive the black and white pattern signal (col our
off).
(2) Set the FULL mode.
(3) Select 2. V/C from the SERVICE MENU.
(4) Sel ect 1. CUT OF R and set each value to initial
SCREEN VR
[HVT]
setting value.
(5) Press the [YELLOW] key to display a signal
horizontal line.
(6) Turn the SCREEN VR fully counterclockwise, then
slowly turn it clockwise to where a red, blue or
green colour is faintly visible.
(7) Adjust the other 2 colours to where the single
horizontal line appears white.
(8) Turn the SCREEN VR to where the single
horizontal line glows faintly.
(9) Press the [2] key to release the holizontal line
mode.
(10) Press the [OK] key and memorized the set value.
0
(YELLOW)
G.
LEVEL ( )
B. LEVEL ( )
B. LEVEL ( )
G. LEVEL (
)
H. LINE ON
25
HV-32D25EUW
HV-32D25EJW
Item
WHITE
BALANCE
(High light)
R. LEVEL (
R. LEVEL (
Mesuring
instrument
Signal
generator
Remote
control unit
REMOTE CONTROL UNIT
123
)
456
)
789
Test point Adjustment part Description
2. V/C -->
4. DRIVE R
5. DRIVE G
6. DRIVE B
• Proceed to the following adjustment after having
completed the adjustment of LOW LIGHT WHITE
BALANCE.
(1) Receive the black and white pattern signal (colour
off).
(2) Set the FULL mode.
(3) Select 2. V/C from the SERVICE MENU.
(4) Select 4. DRIVE R, and 6. DRIVE B and set each
value to initial setting value.
(5) Produce a white screen.
(6) Press the [OK] key and memorize the set value.
G.
LEVEL ( )
B. LEVEL ( )
B. LEVEL ( )
G. LEVEL (
0
)
SUB SCREEN
WHITE
BALANCE
(High light)
R. LEVEL (
Signal
generator
Remote
control unit
MAIN
screen
(LEFT) (RIGHT)
REMOTE CONTROL UNIT
123
)
456
SUB
screen
2. V/C -->
7. TWIN HI R
G.
LEVEL ( )
B. LEVEL ( )
(1) Receive the black and white pattern signal (colour
off).
(2) Select the Twin screen mode by pressing the [PIP]
key.
(3) Select 2. V/C from the SERVICE MENU.
(4) Select 7.TWIN HI R.
(5) Adjust so that the white level on the right screen in
the same manner as for left screen.
(6) Press the [OK] key and memorize the set value.
26
R. LEVEL (
)
7
8
0
9
B. LEVEL ( )
G. LEVEL (
)
HV-32D25EUW
HV-32D25EJW
Item
SUB
BRIGHTNESS
Mesuring
instrument
Signal
generator
Remote
control unit
SUB CONTRAST Signal
generator
Remote
control unit
SUB SCREEN
SUB
BRIGHTNESS &
SUB CONTRAST
Signal
generator
Remote
control unit
PAL
SUB COLOUR
Signal
generator
Oscilloscope
Remote
control unit
Test point Adjustment part Description
TP-R
TP-E
[CRT SOCKET
PWB]
Cy G
2. V/C -->
9. BRIGHT
(1) Re ceive the black and white pattern signal (col our
off).
(2) Select 2. V/C from the SERVICE MENU.
(3) Select 9. BRIGHT.
(4) Set the inital setting value.
(5) If the brightness is not the best with the initial
setting value, make fine adjustment until you get
the best brightness.
(6) Press th e [OK] key and memorize the set value.
2. V/C-->
10. CONT
(1) Re ceive the black and white pattern signal (col our
off).
(2) Select 2. V/C from the SERVICE MENU.
(3) Select 10. CONT.
(4) Set the inital setting value.
(5) I f the contrast is not the best with the initial setting
value, make fine adjustment until you get the best
contrast.
(6) Press th e [OK] key and memorize the set value.
2. V/C -->
11. TW BRIG
12. TW CONT
(1) Re ceive the black and white pattern signal (col our
off).
(2) Select the Twin screen mode by pressing the [PIP]
key.
(3) Select 2. V/C from the SERVICE MENU.
(4) Select 11.TW BRIG.
(5) Set the inital setting value.
(6) Adjust 11.TW BRIG so that the right screen
becomes the same as for the left screen.
(7) Adjust 12. TW CONT so that right screen becomes
the same as for the left screen.
(8) If brightness was changed, adjust it one more time.
(9) Press th e [OK] key and memorize the set value.
2. V/C -->
13. COLOUR
[Method of adjustment without measuring
instrument]
(1) Re ce ive PAL broadcast.
(2) Select 2.V/C from the SERVICE MENU.
(3) Select 13.COLOUR.
(4) Set the initial setting value for PAL COLOUR.
(5) If the colour is not the best with the initial set value,
make fine adjustment until you get the best colour.
(6) Press th e [OK] key and memorize the set value.
[Method of adjustment using measuring instrument]
(1) Receive a PAL full field colour bar signal (75%
white).
B
(2) Select 2.V/C from the SERVICE MENU.
(3) Select 13.COLOUR.
(4) Set the initial setting value for PAL COLOUR.
(5) Connect the oscilloscope between TP-R and TP-E.
(6) Adj ust PAL COLOUR and bring the val ue of (A) in
the illustration to 5V (voltage difference between
white (W) and red (R)).
(7) Press th e [OK] key and memorize the set value.
(-)
W(75%) Y Mg R
(A)
V(W-R)
(+)
27
HV-32D25EUW
HV-32D25EJW
Item
SECAM
SUB COLOUR
Mesuring
instrument
Signal
generator
Oscilloscope
Remote
control unit
Test point Adjustment part Description
TP-R
TP-E
[CRT SOCKET
PWB]
2. V/C -->
13. COLOUR
[Method of adjustment without measuring
instrument]
(1) Receive SECAM broadcast.
(2) Select 2.V/C from the SERVICE MENU.
(3) Select 13.COLOUR.
(4) Set the initial setting value for SECAM COLOUR.
(5) If the colour is not the best with the initial set value,
make fine adjustment until you get the best colour.
(6) Press the [OK] key and memorize the set value.
[Method of adjustment using measuring instrument]
(1) Receive a SECAM colour bar signal.
(2) Select 2.V/C from the SERVICE MENU.
(3) Select 13.COLOUR.
(4) Set the initial setting value for SECAM COLOUR.
(5) Connect the oscilloscope between TP-R and TP-E.
(6) Adjust SECAM COLOUR and bring the value of (A)
in the illustration to 4V (voltage difference between
white (W) and blue (B)).
(7) Press the [OK] key and memorize the set value.
(-)
(A)
V(W-B)
NTSC
SUB COLOUR
W(75%)
Signal
generator
Oscilloscope
Remote
control unit
W Y CY G Mg R B
B
TP-R
TP-E
[CRT SOCKET
PWB]
(A)
(+)
2. V/C -->
13. COLOUR
(-)
V(W-R)
(+)
[Method of adjustment without measuring
instrument]
(1) Input a NTSC 3.58MHz COMPOSITE VIDEO
signal from the EXT terminal.
(2) Select 2.V/C from the SERVICE MENU.
(3) Select 13.COLOUR.
(4) Set the initial setting value for NTSC COLOUR.
(5) If the colour is not the best with the initial set value,
make fine adjustment until you get the best colour.
(6) Press the [OK] key and memorize the set value.
[Method of adjustment using measuring instrument]
(1) Input a NTSC 3.58MHz COMPOSITE VIDEO
signal (full field colour bar with 75% white) from the
EXT terminal.
(2) Select 2.V/C from the SERVICE MENU.
(3) Select 13.COLOUR.
(4) Set the initial setting value for NTSC COLOUR.
(5) Connect the oscilloscope between TP-R and TP-E.
(6) Adjust NTSC COLOUR and bring the value of (A)
in the illustration to 3V (voltage difference between
white (W) and red (R)).
(7) Press the [OK] key and memorize the set value.
-NTSC 4.43MHz COLOUR-
When NTSC 3.58MHz COLOUR, set, NTSC 4.43MHz
COLOUR will automatically set.
28
HV-32D25EUW
HV-32D25EJW
Item
NTSC 3.58MHz
SUB TINT
Mesuring
instrument
Signal
generator
Oscilloscope
Remote
control unit
W Y CY G Mg R B
Test point Adjustment part Description
TP-R
TP-E
[CRT SOCKET
PWB]
2. V/C -->
14. HUE
[Method of adjustment without measuring
instrument]
(1) Input a NTSC 3.58MHz COMPOSITE VIDEO
signal (full field colour bar with 75% white) from the
EXT terminal.
(2) Select 2. V/C from the SERVICE MENU.
(3) Select 14. HUE.
(4) Set the initial setting value for NTSC HUE.
(5) If the colour is not the bwst with the initial set value,
make fine adjustment until you get the best colour.
(6) Press th e [OK] key and memorize the set value.
[Method of adjustment using measuring instrument]
(1) Input a NTSC 3.58MHz COMPOSITE VIDEO
signal (full field colour bar with 75% white) from the
EXT terminal.
(2) Select 2.V/C from the SERVICE MENU.
(3) Select 14.HUE.
(4) Connect the oscilloscope between TP-R and TP-E.
(5) Adj ust NTSC COLOUR and bring the value of (A)
in the illustration to -1V (voltage difference between
white (W) and yellow (Y)).
(-)
(A)
(+)
(6) Press th e [OK] key and memorize the set value.
-NTSC 4.43MHz TINT-
When NTSC 3.58MHz TINT, set, NTSC 4.43MHz TINT
will automatically set.
29
HV-32D25EUW
HV-32D25EJW
Item
SUB SCREEN
SUB COLOUR &
SUB TINT
Mesuring
instrument
Signal
generator
Test point Adjustment part Description
TP-R
TP-E
[CRT SOCKET
Oscilloscope
PWB]
Remote
control unit
Cy G
W(75%) Y Mg R
B
(A)
2. V/C -->
16.TWN COL
17.TWN TNT
(1) Receive PAL colour bar signal to right and left
screen.
(2) Select the Twin screen mode by pressing the [PIP]
key.
(3) Select 2. V/C from the SERVICE MENU.
(4) Select 16. TWIN COL.
(5) Connect the osilloscope to TP-R.
(6) Adjust so that the colour difference (A) on the right
screen in the same manner as for left screen.
(7) Press the [OK] key and memorize the set value.
(8) Receive SECAM colour bar signal to right and left
screen.
(9) Adjust so that the colour difference (A) on the right
screen in the same manner as for left screen.
(10) Press the [OK] key and memorize the set value.
(11) Input a NTSC 3.58MHz COMPOSITE VIDEO
signal to right and left screen.
(12) Adjust so that the colour difference (A) on the right
screen in the same manner as for left screen.
(13) Select 17. TWIN TNT.
(14) Adjust so that the colour difference (B) on the right
screen in the same manner as for left screen.
(15) Press the [OK] key and memorize the set value.
<PAL COLOUR>
W(75%)
<SECAM COLOUR>
W Y Cy G Mg R B
(A)
R
30
(B)
<NTSC COLOUR>
(A)
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