JVC AV-32430/M User manual

SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD. No.52104
2003/04
AV-32430
AV-32432
COLOR TELEVISION
52104200304 AV-32430/M, AV-32432/M,
AV-32430/R, AV-32432/R,
AV-32430/Y, AV-32432/Y
TABLE OF CONTENTS
1 PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
BASIC CHASSIS
GE2

AV-32430
AV-32432
1-2 (No.52104)
SPECIFICATION
Design & specifications are subject to change without notice.
Items Contents
Dimensions (W x H x D) 76.8cm x 66.7cm x 54.7cm (30-1/4” x 26-1/4” x 21-1/2”)
Mass 51.0kg (112.2 Ibs)
TV RF System CCIR (M)
Color Sound System NTSC, BTSC System (Multi Channel Sound)
TV Receiving Channels and Frequency
VHF LOW
VHF HIGH
UHF
CATV
02ch~06ch : 54MHz~88MHz
07ch~13ch : 174MHz~216MHz
14ch~69ch : 470MHz~806MHz
54MHz~804MHz
Low Band : 02~06, A-8 by 02~06&01
High Band : 07~13 by 07~13
Mid Band : A~1 by 14~22
Super Band : J~W by 23~36
Hyper Band : W+1~W+28 by 37~64
Ultra Band : W+29~W+84 by 65~125
Sub Mid Band : A8, A4~A1 by 01, 96~99
TV/CATV Total Channel 180 Channels
Intermediate Frequency Video IF Carrier
Sound IF Carrier 45.75MHz 41.25MHz (4.5MHz)
Color Sub Carrier 3.58MHz
Power Input AC 120V, 60Hz
Power Consumption 128W
Picture Tube 32” (80cm) Measured diagonally H:65.6cm x V:49.6cm
High Voltage 31kV±1.3kV (at zero beam current)
Speaker 8 x 12cm (3-1/4” x 4-3/4”) Oval type x 2
Audio Power Output 3W + 3W
Antenna Terminal (VHF/UHF) F-type connector, 75ohm
Video / Audio Input (1 / 2 / 3) Video (1 / 3)
Audio (1 / 2 / 3)
S-Video (1)
Component video (2)
1V(p-p), 75ohm (RCA pin jack x 2)
500mV(rms) (-4dBs), high impedance (RCA pin jack x 8)
Mini DIN 4pin x 1
Y : 1V(p-p) positive (negative sync provided, when terminated with 75ohm)
C : 0.286V(p-p) (burst signal when terminated with 75ohm)
RCA pin jack x 3
Y : 1V(p-p) positive (negative sync provided, when terminated with 75ohm)
Pb/Pr : 0.7V(p-p) 75ohm
Audio Output (Fix) 500mV(rms), low impedance, (1kHz when modulated 100%) (RCA pin jack x 2)
AV Compulink lll 3.5mm mini jack x 1
Remote Control Unit RM-C203 (Lithium cell battery x 1)

AV-32430
AV-32432
(No.52104)1-3
SECTION 1
PRECAUTIONS
1.1 SAFETY PRECAUTIONS
(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 visualinspectionnor canthe protection affordedby them
necessarily be obtained by using replacement components rated for
higher voltage, wattage, etc. Replacement parts that have these
special safety characteristics are identified in the parts list of Service
manual. Electrical components having such features are
identifiedby shading on theschematics 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
replacementpart shown in thepartslist ofServicemanualmaycause
shock, fire, or other hazards.
(4) Use isolation transformer when hot chassis.
The chassis and any sub-chassis contained in some products are
connected to one side of the AC power line. An isolation transformer
of adequate capacity should be inserted between the product and the
AC power supply point while performing any service on some
products when the HOT chassis is exposed.
(5) Don't short between the LIVE side ground and ISOLATED
(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 with a measuring
apparatus (oscilloscope etc.) the LIVE side GND and
ISOLATED(NEUTRAL) side GND or EARTH side GND at the same
time.
If above note will not be kept, a fuse or any parts will be broken.
(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-Rayemission, arcingandpossible 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) If any repair has been made to the chassis, it is recommended that
the B1 setting should be checked or adjusted (See ADJUSTMENT
OF B1 POWER SUPPLY).
(8) 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
10kΩ2W resistor to the anode button.
(9) 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.
(10) 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, screwheads, earphone jack,
control shafts, etc.) to be sure the product is safe to operate without
danger of electrical shock.
a) Dielectric Strength Test
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 1100V AC (r.m.s.) for a period of one second.
(. . . . Withstand a voltage of 1100V AC (r.m.s.) to an appliance
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 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 1500ohm 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.).
(11) High voltage hold down circuit check.
After repair of the high voltage hold down circuit, this circuit shall be
checked to operate correctly.
See item "How to check the high voltage hold down circuit".
AC VOLTMETER
(HAVING 1000 /V,
OR MORE SENSITIVITY)
PLACE THIS PROBE
ON EACH EXPOSED
METAL PART
1500 10W
0.15 F AC-TYPE
GOOD EARTH GROUND
PWB
White line side
WHT
PW
POWER CORD
REPLACEMENT WARNING.
Connecting the white line side of power
cord to "WHT" character side.
A V
This mark shows a fast
operating fuse, the
letters indicated below
show the rating.

AV-32430
AV-32432
1-4 (No.52104)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 FEATURES
2.2 MAIN DIFFERENCE LIST
• The difference between MA models, RA model, and YA models is in the PICTURE TUBE. As the result of the difference in PICTURE
TUBE, the MAIN PWB also differ.
• The difference between AV-32430 series models and AV-32432 series models are in the FRONT CABINET color.
TELETEXT (CLOSED CAPTION) Title TELETEXT broadcast of C1~C4 and T1~T4 formula is receivable.
DIGITAL COMB FILTER By the three-line digital comb filter, the refreshed image can be seen.
VIDEO STATUS Expression of a favorite screen can be chosen by the VIDEO STATUS function
(STANDARD / DYNAMIC / SPORTS / GAME).
V-CHIP Since the V chip is built in, it can choose, view and listen to a healthy program.
COMPONENT VIDEO INPUT TERMINAL Since the component signal input terminal is equipped, it reappears direct without
deteriorating the signal from DVD.
MTS STEREO SYSTEM The voice multiplex function of the MTS system is built in. (MTS = Multi channel TV
Sound system)
EZ SURF By the EZ SURF function, channel ID and a program name are displayed in the screen
automatically.
RETURN PLUS you program a specific channel to return to while scanning through the channels using
the CH+ and CH- buttons.
AV COMPULINK lll By the AV COMPULINK lll function, operation interlocked with the DVD deck can be
performed from remote control.
ON / OFF & SLEEP TIMER The on/off timer lets you program your television to turn itself on or off. You can use it as
an alarm to wake up, to help you remember important programs, or as a decoy when
you're not home.
HYPER SCAN A quick favorite program can be looked for by the HYPER SCAN function.
FRONT PANEL LOCK This allows you to lock the keys on the front of the TV, so that a child may not accidentally
change your viewing preferences.
NOISE MUTING This feature inserts a blank blue screen over channels which are not broadcasting or are
too weak to be received clearly.
PART NAME AV-32430/MA AV-32430/RA AV-32430/YA
FRONT CABINET (BLACK) CM12914-010-MA
MAIN P.W.B. ASSY SGE-1064A-M2 SGE-1066A-M2 SGE-1065A-M2
CRT SOCKET P.W.B. ASSY SGE-3061A-M2 SGE-3062A-M2
AV SELECT P.W.B. ASSY SGE-5062A-M2
PICTURE TUBE (ITC) M80JUA061X06 A80AEJ15X01 A80AKB50X04
PART NAME AV-32432/MA AV-32432/RA AV-32432/YA
FRONT CABINET (SILVER) CM12914-012-MA
MAIN P.W.B. ASSY SGE-1061A-M2 SGE-1063A-M2 SGE-1062A-M2
CRT SOCKET P.W.B. ASSY SGE-3061A-M2 SGE-3062A-M2
AV SELECT P.W.B. ASSY SGE-5061A-M2
PICTURE TUBE (ITC) M80JUA061X06 A80AEJ15X01 A80AKB50X04

AV-32430
AV-32432
(No.52104)1-5
2.3 HOW TO IDENTIFY MODELS
How to recognize from the appearance of the model concerned is written below.
Please distinguish from several contents printed on the rating label.
2.4 FUNCTIONS
Indicated model name
Indicated /M, /R or /Y model
MENU
CHANNEL -/+
INPUT-3 (V, L, R)
INPUT-1
(S, V, L, R)
INPUT-2
(L, R)
INPUT-2
(Y, Pb, Pr)
ANTENNA
TERMINAL
VIDEO
STATUS
VCR
CONTROL
KEYS
DISPLAY
POWER
BUTTON
NUMBER
KEYS
MUTING
MENU
GAME
SLEEP
C.C
EXIT
INPUT
AUDIO OUT
(L, R)
VOLUME -/+
POWER SW
REMOCON
WINDOW
FRONT CONTROL PANEL
REAR TERMINAL
REMOTE CONTROL UNIT

AV-32430
AV-32432
1-6 (No.52104)
2.5 DISASSEMBLY PROCEDURE
2.5.1 REMOVING THE REAR COVER
• Unplug the power plug.
(1) Remove the 11 screws [A], as shown in Fig.1.
(2) Remove the rear cover toward you.
NOTE:
When reinstalling the REAR COVER, carefully push it inward
after inserting the chassis into the rear cover groove.
2.5.2 REMOVING THE TERMINAL BOARD
• Remove the REAR COVER.
(1) Remove the 4 screws [E] as shown in Fig.2.
(2) When you pull out the TERMINAL BOARD, it can be
removed.
2.5.3 REMOVING THE MAIN PWB
• Remove the REAR COVER.
(1) Slightly raise the both sides of the CHASSIS BASE by
hand, and remove the 2 claws [B] (Fig.1 and Fig.2) under
the both sides of the chassis from the chassis rail.
(2) Draw the CHASSIS BASE backward along the chassis rail
[C] in the arrow direction [D] as shown in Fig.1 and Fig.2.
(If necessary, detach the wire clamp, connector's etc.)
NOTE:
When conducting a check with power supplied, be sure to
confirm that the CRT earth wire is connected to the CRT
SOCKET PWB and the MAIN PWB.
Fig.1
2.5.4 REMOVING THE FRONT CONTROL PWB
• Remove the REAR COVER.
• Remove the MAIN PWB.
(1) Remove the 2 screws [F] attached the FRONT CONTROL
PWB with the front cabinet as shown in Fig.2.
(2) Then remove the FRONT CONTROL PWB.
2.5.5 REMOVING THE FRONT TERMINAL PWB
• Remove the REAR COVER.
• Remove the CHASSIS BASE.
(1) Remove the 2 screws [G], as shown in Fig.2.
(2) Then remove the FRONT AV IN PWB.
2.5.6 REMOVING THE SPEAKER
• Remove the REAR COVER.
• Remove the CHASSIS BASE.
(1) Remove the 2 screws [H], as shown in Fig.2.
(2) Follow the same steps when removing the other hand
speaker.
2.5.7 CHECKING THE MAIN PWB
(1) Pull out the CHASSIS BASE. (Refer to REMOVING THE
CHASSIS BASE).
(2) Erect the chassis vertically so that you can easily check
from the backside of the MAIN PWB.
2.5.8 CAUTION
(1) When erecting the chassis, be careful so that there will be
no contacting with other PWB.
(2) Before turning on power, make sure that the CRT earth
wire and other connectors are properly connected.
2.5.9 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.
MAIN PWB
FRONT CABINET
B
C

AV-32430
AV-32432
(No.52104)1-7
Fig.2
FRONT CABINET
CRT SOCKET PWB
CRT
MAIN PWB
POWER CORD
SPEAKER
SPEAKER
REAR COVER
FRONT TERMINAL
PWB
FRONT
CONTROL
PWB
AV SELECTOR
PWB
CHASSIS BASE
CLAW
CLAW
TERMINAL
BOARD
HVT
E
H
F
G
D
B
B
H
A

AV-32430
AV-32432
1-8 (No.52104)
2.6 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. 3).
(2) While keeping the surface of CRT down, mount the TV set
on the CRT change table balanced will as shown in Fig. 3.
(3) Remove 4 screws marked by arrows with a box type screw-
driver as shown in Fig. 4.
NOTE:
Since the cabinet will drop when screws have been re-
moved, 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. 5.
NOTE:
• The CRT should be assembled according to the oppo-
site sequence of its dismounting steps.
• The CRT change table should preferably be smaller
that the CRT surface, and its height be about 35cm.
Fig.3
Fig.4
Fig.5
COATING OF SILICON GREASE FOR ELECTRICAL INSULATION ON THE CRT ANODE CAP SECTION.
Subsequent to replacement of the CRT and HV transformer or
repair of the anode cap, etc. by dismounting them, be sure to
coat silicon grease for electrical insulation as shown in Fig.6.
Wipe around the anode button with clean and dry cloth. (Fig.6)
Coat silicon grease on the section around the anode button. At
this time, take care so that any silicon greases dose not sticks
to the anode button. (Fig.7)
Silicon grease product No. KS - 650N
Fig.6 Fig.7
CRT CHANGE TABLE
APPROX.
35cm
CLOTH
CRT
BOX
TYPE
SCREW
DRIVER
CRT
CHANGE
TABLE
CRT
CHANGE TABLE
CRT
CABINET
Anode button
CRT
Silicon grease
coating
Silicon grease
should be coated
by 5mm or more
from the outside
diameter of anode
cap.
Approx.
20mm (Do not
coat grease on
this section
Anode button
(No sticking of
silicon grease)
Anode cap
Coating position
of silicon grease

AV-32430
AV-32432
(No.52104)1-9
2.7 MEMORY IC REPLACEMENT
2.7.1 MEMORY IC
This TV use memory IC.
In the memory IC, there are memorized data for correctly operating the video and deflection circuits.
When replacing the memory IC, be sure to use IC written with the initial values of data.
2.7.2 PROCEDURE FOR REPLACING MEMORY IC
(1) Power off
Switch the power off and unplug the power plug.
(2) Replace IC
Be sure to use a memory IC written with the initial setting data.
(3) Power on
Connect the power plug and switch the power on.
(4) Setting of receive channels
Set the receive channels. For setting, refer to the OPERATING INSTRUCTIONS.
(6) User settings
Check the user setting items according to TABLE 2, and if these are different, set the correct value.
(7) SERVICE MENU setting
Verify what to set in the SERVICE MENU, and set whatever is necessary. Refer to the SERVICE ADJUSTMENT for setting.
1.V/C(S)
3.SOUND(A)
7.LOW LIGHT
9.VCO
11.I2C BUS
SERVICE MENU
2.DEF(D)
4.OTHERS(F)
8.HIGH LIGHT
SELECT BY
OPERATE BY EXIT BY
EXIT
SERVICE MENU

AV-32430
AV-32432
1-10 (No.52104)
2.7.3 USER SETTING VALUES
TABLE 2
Setting item Setting value Setting item Setting value
REMOTE CONTROL UNIT KEY
POWER OFF DISPLAY OFF
CHANNEL CH-02 VIDEO STATUS DYNAMIC
VOLUME 15 SLEEP TIMER 0
TV/VIDEO TV
SETTING OF MENU
PICTURE MODE INITIAL SETUP MODE
TINT Center LANGUAGE ENG
COLOR Center FRONT PANEL LOCK OFF
PICTURE +8 V2 COMPONENT-IN NO
BRIGHT Center AUTO SHUT OFF OFF
DETAIL +10 CLOSED CAPTION OFF
NOISE MUTING ON AUTO TUNER SETUP AIR
SOUND MODE CHANNEL SUMMARY Unnecessary to set
BASS Center V-CHIP OFF
TREBLE Center SET LOCK CODE (0000) Unnecessary to set
BALANCE Center XDS ID ON
MTS STEREO
CLOCK / TIMERS MODE
SET CLOCK MANUAL
TIME ZONE : PACIFIC
D.S.T. : OFF
ON / OFF TIMER OFF

AV-32430
AV-32432
(No.52104)1-11
2.8 REPLACEMENT OF CHIP COMPONENT
2.8.1 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.
2.8.2 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.
2.8.3 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) Shift with the tweezers and remove the chip part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply extra solder to each lead.
(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.
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.
[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) First solder lead Aas indicated in the figure.
(4) Then solder leads Band C.
SOLDER SOLDER
A
B
C
A
B
C

AV-32430
AV-32432
1-12 (No.52104)
SECTION 3
ADJUSTMENT
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 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 instruments for warming up for at least 30 minutes before starting adjustments.
(5) If the receive or input signal is not specified, use the most appropriate signal for adjustment.
(6) Never touch the parts (such as variable resistors, transformers and condensers) not shown in the adjustment items of this service
adjustment.
(7) Preparation for adjustment. Unless otherwise specified in the adjustment items, preset the following functions with the REMOTE
CONTROL UNIT.
3.2 MEASURING INSTRUMENT AND FIXTURES
(1) DC voltmeter (or digital voltmeter)
(2) Oscilloscope
(3) Frequency counter
(4) Signal generator (Pattern generator) [NTSC]
(5) TV audio multiplex signal generator
(6) Remote control unit
Item Preset value
VIDEO STATUS DYNAMIC
TINT, COLOR, PICTURE, BRIGHT, DETAIL Center
NOISE MUTING OFF
BASS, TREBLE, BALANCE Center
MTS STEREO

AV-32430
AV-32432
(No.52104)1-13
3.3 ADJUSTMENT LOCATIONS
FRONT
UPPER : FOCUS
LOWER : SCREEN
FRONT CONTROL PWB
FRONT
POWER MENUVOL CH
IC7701
CN7007 F
FRONT AV IN PWB
CN001
CN007
AV SELECTOR PWB
B1
1
3
HV
E1
CRT EARTH
(BRAIDED ASS'Y)
U
HVT
HVT
IC702
SS
T
T111
S421
IC201
CN004
MAIN PWB
IC101
PW
F901
DEG.
MEMORY IC
CN003
TUNER
3.15A
3.15A
V CENTER SW
V CENTER SW
VCO
VCO
1:TP-91(B1)
2:NC
3:TP-E( )
FRONT
TOP
CRT EARTH
(BRAIDED ASS'Y)
CRT SOCKET PWB
(SOLDER SIDE)
TP-E( )
CN3005
CN30E2
CN3004
TP-G
TP-R
TP-B

AV-32430
AV-32432
1-14 (No.52104)
3.4 BASIC OPERATION OF 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 adjustments can be made, and they are broadly classified in the following items of settings.
3.4.3 BASIC OPERATION IN SERVICE MENU
3.4.3.1 HOW TO ENTER THE SERVICE MENU
Press the [SLEEP TIMER] key and set the SLEEP TIMER for "0
MIN".
Then press the [DISPLAY] key and [VIDEO STATUS] key of the
remote control unit at the same time to enter the SERVICE
MENU screen.
3.4.3.2 SUB MENU SCREEN SELECTION
Press [VOLUME (-/+)] keys of the REMOTE CONTROL UNIT,
and select the SUB MENU SCREEN from SERVICE MENU.
In SERVICE MENU, press the [CHANNEL (-/+)] key to select any
of the SUB MENU items. The letters of the selected items are
displayed in yellow.
(1) V/C (S) This mode adjusts the VIDEO and CHROMA control circuit.
(2) DEF (D) This mode adjusts the DEFLECTION control circuit.
(3) SOUND (A) This mode adjusts the SOUND control circuit.
(4) OTHERS (F) This mode adjusts the display setting and the other settings (Do not change the values).
(7) LOW LIGHT This mode adjusts the WHITE BALANCE (LOW LIGHT) control circuit.
(8) HIGH LIGHT This mode adjusts the WHITE BALANCE (HIGH LIGHT) control circuit.
(9) VCO This mode adjusts the VCO control circuit.
(11) I2C BUS This mode adjusts the I2C BUS control circuit (They are fixed).
1.V/C(S)
3.SOUND(A)
7.LOW LIGHT
9.VCO
11.I2C BUS
SERVICE MENU
2.DEF(D)
4.OTHERS(F)
8.HIGH LIGHT
SELECT BY
OPERATE BY EXIT BY
EXIT
SERVICE MENU
1.V/C(S) 2.DEF(D)
3.SOUND(A) 4.OTHERS(F)
7.LOW LIGHT 8.HIGH LIGHT
9.VCO
11.I2C BUS
VIDEO
STATUS
DISPLAY
EXIT
VOLUME
- / +
SLEEP
TIMER
CHANNEL
+ / -

AV-32430
AV-32432
(No.52104)1-15
3.4.3.3 SETTING METHOD
[1.V/C(S), 2.DEF(D) AND 3.SOUND(A) ADJUSTMENT MODE]
1) Press the [CHANNEL (-/+)] keys to select the one of setting item from S01 BRIGHT to S21 AGC ADJ.
2) Press the [VOLUME (-/+)] keys to change the setting value. The setting value will be stored automatically when release
the REMOTE CONTROL UNIT keys.
It can adjust the items 2.DEF(D) and 3.SOUND(A) in the same procedure.
[7.LOW LIGHT, 8.HIGH LIGHT AND 9.VCO ADJUSTMENT MODE]
Since the key operation in this mode is peculiar, please refer to the clause of the "ADJUSTMENT PROCEDURE".
[4.OTHERS AND 11.I2C BUS ADJUSTMENT MODE]
These are no requirement for adjustment. Don't change these values.
3.4.3.4 Release of SERVICE MENU
When adjustment is completed, press the [EXIT] key twice. Then return to the normal screen.

AV-32430
AV-32432
1-16 (No.52104)
3.4.4 SERVICE MENU FLOW CHART
BRIGHT
2.DEF(D)
7.LOW LIGHT
9. VCO MAIN
3.SOUND(A)
4.OTHERS(F)
1.V/C(S)
8.HIGH LIGHT
RF 4 : 3 STD LOW
D01 V FREQ
RF 4 : 3 STD LOW
S01 BRIGHT
A01 IN LEVEL
F01 OSD POSI
TUNER MAIN
HIGH LEVEL
REFERENCE LEVEL
LOW LEVEL
SYNC NO
SERVICE MENU (MAIN MENU)
SERVICE MENU
1.V/C(S) 2.DEF(D)
3.SOUND(A) 4.OTHERS
7.LOW LIGHT 8.HIGH LIGHT
9.VCO
11.I
2
SELECT BY
OPERATE BY EXIT BY EXIT
C BUS
11.I2C BUS
[Do not adjust]
I2
C BUS ON

AV-32430
AV-32432
(No.52104)1-17
3.5 INITIAL SETTING VALUE OF SERVICE MENU
(1) Adjustment of the SERVICE MENU is made on the basis of the initial setting values. However, the new setting values which
displays on the screen in its optimum condition may differ from the initial setting value.
(2) Do not change the initial setting values of the items not listed in "ADJUSTMENT PROCEDURE".
(3) "---" is impossible to adjust.
3.5.1 [1.V / C]
No. Setting item Variable range Initial setting value RF EXTERNAL (SV,CV) COMPONENT
STANDARD THEATER STANDARD THEATER STANDARD THEATER
S01 BRIGHT 0~127 64 --- --- --- --- ---
S02 PICTURE 0~127 55 --- --- --- --- ---
S03 COLOR 0~127 50 --- --- --- 55 ---
S04 TINT 0~127 60 --- --- --- 78 ---
S05 DETAIL 0~63 37 --- 35 --- 40 ---
S06 BRIGHT +- -128~+127 --- 1 -2 --- 0 ---
S07 PICT+- -128~+127 --- -10 0 --- 0 ---
S08 COLOR +- -128~+127 --- -3 -2 --- --- ---
S09 TINT+- -128~+127 --- -3 2 --- --- ---
S10 DETAIL+- -128~+127 --- 0 --- --- --- ---
No. Setting item Variable range
Initial setting value
RF/EXT (SV,CV) COMPONENT
STANDARD THEATER STANDARD THEATER
LOW HIGH LOW HIGH LOW HIGH LOW HIGH
S11 R CUT OFF 0~255 30 --- --- --- --- --- --- ---
S12 G CUT OFF 0~255 30 --- --- --- --- --- --- ---
S13 B CUT OFF 0~255 30 --- --- --- --- --- --- ---
S14 R DRIVE 0~127 64 --- --- --- --- --- --- ---
S15 B DRIVE 0~127 64 --- --- --- --- --- --- ---
S16 R CUT+- -128~+127 --- 0 0 0 -10 --- --- ---
S17 G CUT+- -128~+127 --- 0 0 0 0 --- --- ---
S18 B CUT+- -128~+127 --- 0 0 0 -10 --- --- ---
S19 R DRV+- -128~+127 --- 0 7 7 0 --- --- ---
S20 B DRV+- -128~+127 --- 0 -9 -9 0 --- --- ---
No. Setting item Variable range Initial setting value
S21 AGC ADJUST 0~127 80

AV-32430
AV-32432
1-18 (No.52104)
3.5.2 [2.DEF]
3.5.3 [3.SOUND]
3.5.4 [4.OTHERS]
3.5.5 [7.LOW LIGHT]
3.5.6 [8.HIGH LIGHT]
No. Setting item Variable range
Initial setting value
AV-32430 /M
AV-32432 /M AV-32430 /Y AV-32432 /Y AV-32430 /R AV-32432 /R
RF EXTERNAL
(SV, CV) RF EXTERNAL (SV, CV) RF EXTERNAL (SV, CV)
D01AFCGAIN0~3020202
D02 H POSI 0~31 20 20 20 20 20 20
D03 V SIZE 0~125 63 63 70 70 70 70
D04VSCORR0~15555555
D05VLIN 0~15121212121212
D06 H SIZE 0~63 17 17 26 26 27 27
D07WVMTTOP0~3000000
D08WVMTBTM0~3000000
D09EWCRTOP0~31121212121212
D10EWCRBTM0~31151515151515
D11EWPARA0~63303036363636
D12BLANKSW0~1000000
No. Setting item Variable range Initial setting value
A01 IN LEVEL 0~63 36
A02 FH MON 0~1 0
A03 ST VCO 0~63 43
A04 PIL CAN 0~1 0
A05 FILTER 0~63 35
A06 LOW SEP 0~63 8
A07 HI SEP 0~63 26
A08 5FH MON 0~1 0
A09 SAP VCO 0~63 44
No. Setting item Variable range Initial setting value
F01 OSD POSI 0~255 40
F02 OSD PREQ 0~255 90
F03 CCD POSI 0~63 47
F04 CCD FREQ 0~255 93
F05 CCD CONT 0~63 7
F06 PUR CONT 0~255 2
F07 VNR CHK 0~255 3
F08 VCSN TM 0~255 5
F09 CCD PCHK 0~1 1
No. Setting item Variable range Initial setting value
1 RED 0~255 30
2 GREEN 0~255 30
3 BLUE 0~255 30
No. Setting item Variable range Initial setting value
1 RED 0~255 64
2 BLUE 0~255 64

AV-32430
AV-32432
(No.52104)1-19
3.6 ADJUSTMENT PROCEDURE
3.6.1 CHECK ITEM
3.6.2 IF VCO
3.6.3 RF AGC
3.6.4 FOCUS
Item Measuring
instrument Test point Adjustment part Description
B1 POWER
SUPPLY
check
DC voltmeter
Signal
generator
B1 Connector
TP-91, TP-E
[MAIN PWB]
(1) Receive the black-and-white signal. (color off)
(2) Connect the DC voltmeter to TP-91 (B1 connector 1
pin) and TP-E (B1 connector 3 pin).
(3) Confirm that the voltage is DC134V±2V.
Item Measuring
instrument Test point Adjustment part Description
IF VCO Remote
control unit [9.VCO] CW transf. (T111)
[MAIN PWB]
• It must not adjust without inputting the RF signal.
(1) Receive a broadcast.
(2) Select 9.VCO.
(3) Change the [AFC] to OFF and [FINE] to 0.
(4) Confirm that the color change from "TOO HIGH" to
"TOO LOW" by CW transf. on MAIN PWB, and
check the [SYNC] is YES.
(5) Adjust CW transf. until "GOOD" letters turns green.
And then confirm that the [SYNC] is YES again.
Adjustment can be done in this statement.
(6) It return the [AFC] to ON.
(7) Push the [EXIT] key to exit the [9.VCO] mode.
TOO HIGH GOOD TOO LOW
SYNC: YES
AFC ON
FINE 0
Item Measuring
instrument Test point Adjustment part Description
RF AGC Signal
generator
Remote
control unit
[1.V/C(S)]
S21 : AGC ADJ (1) Receive a black-and-white signal (colour off). (2) Select 1.V/C.
(3) Select <S21>(AGC ADJ).
(4) Press the [MUTING] key and turn the picture color
off.
(5) With the [VOLUME (-)] key to get the noise in the
screen picture (zero side of setting value).
(6) Press the [VOLUME (+)] key several times and step
when noise disappears from the screen (at that time,
not to increase the value too much).
(7) Change to other channels and make sure that there
is no irregularity.
(8) Press the [MUTING] key and get color out.
No.
S21
Setting item
AGC ADJ 0~127
Variable
range Initial setting value
80
Item Measuring
instrument Test point Adjustment part Description
FOCUS Signal
generator FOCUS VR [In HVT] (1) Receive the crosshatch signal. (2) While looking at the screen, adjust the FOCUS VR
to the vertical and horizontal lines will be clear and in
fine detail.
(3) Make sure that the picture is in focus even when the
screen gets darkened.

AV-32430
AV-32432
1-20 (No.52104)
3.6.5 DEFLECTION CIRCUIT
Item Measuring
instrument Test point Adjustment part Description
V. SIZE &
V. CENTER Signal generator
Remote
control unit
[2.DEF(D)]
D03 : V SIZE
V. CENTER SW(S421)
[MAIN PWB]
(1) Receive the crosshatch signal.
(2) Select 2.DEF(D).
(3) Select the <D03>(V SIZE).
(4) Adjust the <D03> so that the vertical screen size
becomes 92.0%.
(5) Adjust the V. CENTER SW to agree the vertical
center with display center.
H. SIZE /
H. CENTER /
SIDEPIN
Signal
generator
Remote
control unit
[2.DEF(D)]
D02 : H POSI
D06 : H SIZE
D16 : EW PARA
D09 : EWCR TOP
D10 : EWCR BTM
(1) Receive the crosshatch signal.
(2) Select 2.DEF(D).
(3) Select <D02>(H POSI).
(4) Adjust <D02> so that left width and right width of the
crosshatch screen becomes equal.
(5) Adjust <D06>(H SIZE) so that screen horizontal
width becomes 92.0%.
(6) Adjust <D16>(EW PARA) so that vertical line
becomes straight at both top and bottom edge.
(7) When vertical lines of four corner does not turn into
straight, adjust with <D09>(EWCR TOP) and
<D10>(EWCR BTM) to correctly.
Picture
size
(100%)
Screen
size
AV-32430 /M
AV-32432 /M
AV-32430 /Y
AV-32432 /Y
AV-32430 /R
AV-32432 /R
Model Name D03 V SIZE Initial setting value
63
70
70
Straight Straight
SIDE PINCUSHION ADJUSTMENT
Screen size
Picture size 100%
HORIZONTAL SIZE ADJUSTMENT