JVC AV-27D201 User manual

No.51686
Jan. 2000
A
V-27D201
A
V-32D201
1COPYRIGHT © 2000 VICTOR COMPANY OF JAPAN, LTD.
AV-27D201(US&CA)
AV-32D201(US&CA)
AV-32D201(A US&A CA)
CONTENTS
!SPECIFICATIONS 

 

 2
!SAFETY PRECAUTIONS 

 

 3
!FEATURES

 

 

 4
!OPERATING INSTRUCTIONS 

 

 4
!HOW TO INDENTIFY MODELS

 

 5
!SPECIFIC SERVICE INSTRUCTIONS 

 

 6
!SERVICE ADJUSTMENTS 

 

 12

STANDARD CIRCUIT DIAGRAM (APPENDIX) 

 

 2-1
!PARTS LIST

 

 

33
SERVICE MANUAL
COLOR TELEVISION
BASIC CHASSIS
GR2

No.51686
A
V-27D201
A
V-32D201
2
SPECIFICATIONS
Contents
Items AV-27D201(US&CA) AV-32D201 (US&CA)
AV-32D201 (A US&A CA)
Dimensions (W

H

D) 29-5/8”23-1/4”19-1/2”
752mm590mm494mm 33-7/8”27”21-5/8” 859mm684mm548mm
Mass 78.1Ibs / 35.5kg 114.4Ibs / 52.0kg
TV System and Color system
TV RF System
Color System
Sound System
CCIR(M)
NTSC
BTSC (Multi Channel Sound)
TV Receiving Channels and Frequency
VL Band
VH Band
UHF Band
(0206) 54MHz88MHz
(0713) 174MHz216MHz
(1469) 470MHz806MHz
CATV Receiving Channels and Frequency
Low Band
High Band
Mid Band
Super Band
Hyper Band
Ultra Band
Sub Mid Band
TV/CATV Total Channel
(0206, A-8) by (0206&01)
(0713) by (0713)
(AI) by (1422)
(JW)by(2336)
(W+1W+28) by (3764)
(W+29W+84) by (65125)
(A8, A4A1) by (01, 9699)
180 Channels
Intermediate Frequency
Video IF Carrier
Sound IF Carrier
Color Sub Carrier
45.75 MHz
41.25 MHz (4.5MHz)
3.58 MHz
Power Input 120V AC, 60Hz
Power Consumption 118W(US) / 1.7A(CA) 128W(US) / 1.8A(CA)
Picture Tube 27” (73cm) measured diagonally, Full Square 32” (80cm) measured diagonally, Full Square
High Voltage 29kV1.3kV (at zero beam current) 31kV1.3kV (at zero beam current)
Speaker 2”4-3/4” / 512cm, Oval type2
Audio Power Output 5W+5W
Video / Audio Input (1 / 2 / 3) Video(1,2,3) : 1Vp-p 75(RCA pin jack)
Audio(1,2,3) : 500mVrms (-4dBs), High Impedance (RCA pin jack)
S-Video ( Input 1 Over )
Y : 1Vp-p positive (negative sync provided, when terminated with 75)
C : 0.286Vp-p (burst signal, when terminated with 75)
Component Input ( Input 2 )
Y : 1Vp-p positive (negative sync provided, when terminated with 75)
PB/PR: 0.7Vp-p 75
Audio Output
(Variable / Fix : Selectable) Variable : More then 01550mVrms (+6dBs)
Low Impedance (1kHz when modulated 100%) (RCA pin jack)
Fix : 500mVrms(-4dBs)
Low Impedance (1kHz when modulated 100%) (RCA pin jack)
AV Compu link EX Input 3.5mm mini jack
Antenna terminal 75(VHF/UHF) Terminal, F-Type Connector
Remote Control Unit RM-C383-1A
(AA/R6/UM-3 battery2)
Design & specifications are subject to change without notice.
(54MHz804MHz)

No. 51686
A
V-27D201
A
V-32D201
3
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 visual inspection 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 features 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. 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. 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).
7. 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.
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 10k2W 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.
(1) 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 a test equipment not generally
found in the service trade.
(2) 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 knowngood
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10W resistor paralleled
by a 0.15F 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 areturn pathto
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.).
0.15F AC-TYPE
150010W
GOOD
EARTH
GROUND
PLACE THIS PROBE
ON EACH EXPOSED
METAL PART
AC VOLTMETER
(
HAVING 1000/V,
OR MORE SENSITIVITY
)
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".
A V
This mark shows a fast
operating fuse, the
letters indicated below
showthe rating.

No.51686
A
V-27D201
A
V-32D201
4
FEATURES
"New chassis design enables use of a main board with simplified circuitry.
"2 LINE Digital Comb filter Improved picture quality.
"Full-square CRT reproduces fine textured picture in every detail.
"With AV COMPU LINK EX terminal.
"Closed-caption broadcasts can be viewed.
"With AUDIO. VIDEO INPUT terminal.
"S-VIDEO input terminal for taking best advantage of Super VHS.
"Variable / Fix audio output terminal.
"I
2C bus control utilizes single chip ICs.
"Because build in the BBE circuit improved the sound of conversation.
"DVD deck output can inputs to component video signal terminal.
"The hyper-surround system marks a reproduction of the acoustic effects in a theater with strong appeal.
"Built-in V-CHIP system.
OPERATING INSTRUCTIONS
!FUNCTIONS


KEY ASSIGNMENT


FRONT PANEL


REAR PANEL











































MENUCHANNEL
VOLUMEPOWER


FRONT TERMINAL
FRONT VIEW
REAR VIEW
For OPERATING INSTRUCTIONS use that of “00 GR2 IB” (No.51676).
REMOTE CONTROL UNIT (RM-C383)
POWERKEY MUTING KEY
INPUT KEY VOLUME +/- KEY
CHANNEL KEY MENU KEY
HYPER SURROUND KEY V-CHIP KEY
VIDEO STATUS KEY CHANNEL +/- KEY
BBE KEY EXIT KEY
DISPLAY KEY VCR CONTROL KEY

SLEEP TIMER KEY TV/CATV SW KEY




No. 51686
A
V-27D201
A
V-32D201
5
HOW TO IDENTIFY MODELS
!MODEL
Parts name AV-27D201(US) AV-27D201(CA)
!RATING LABEL CM23034-001-A CM22999-A01-A
INDICATED AV-27D201 INDICATED AV-27D201
"For model AV-32D201 (A US&A CA), the suffix “A” is added to the serial number on the rating label.
(The difference between AV-32D201 (A US&A CA) and AV-32D201 (US&CA) is in the PICTURE TUBE. As the result of the difference in
picture tube, the MAIN PWB also differ.)
!MODEL
Parts name AV-32D201(US) AV-32D201(CA)
!RATING LABEL CM23034-001-A CM22999-A01-A
INDICATED AV-32D201 INDICATED AV-32D201
!MODEL
Parts name AV-32D201(A US) AV-32D201(A CA)
!RATING LABEL CM23034-001-A CM22999-A01-A
INDICATED AV-32D201
INDICATED “A”
INDICATED AV-32D201
INDICATED “A”
AV-27D201(US&CA)
AV-32D201(US&CA) / AV-32D201(A US&A CA)
(US) and (CA) are
different in SIZE.
(INDICATED)
(INDICATED)
(US) and (CA) are
different in SIZE.
(INDICATED) (INDICATED)
"(US) and (CA) are
different in SIZE.
(INDICATED)
(INDICATED)

No. 51686
A
V-27D201
A
V-32D201
6
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVE THE REAR COVER
"Unplug the power cord plug.
1. Remove the
12 screws marked A
AA
A
as shown in Fig.2.
2. Remove the rear cover toward you.
 When reinstalling the rear cover, carefully push it inward after
inserting the chassis into the rear cover groove.
REMOVING THE CHASSIS
"After removing the rear cover.
1. Slightly raise the both sides of the chassis by hand and remove
the 2claws under the both sides of the chassis from the front
cabinet.
2. As shown in the Fig.2, withdraw the chassis backward along the
rail in the arrow direction marked B
BB
B.
(If necessary, take off the wire clamp, connector’s etc.)
 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.
REMOVING THE TERMINAL BOARD
"After removing the rear cover.
1. As shown in Fig.2, remove the 4screws marked C
CC
C.
2. As shown in Fig.1, after removing the claw marked D
DD
Din the
direction of arrow mark.
3. When you pull out the TERMINAL BOARD in the direction of
arrow marked E
EE
Eas shown in Fig.1, it can be removed.
4. Thus the connector should be securely inserted when the
TERMINAL BOARD is installed again.
REMOVING THE FRONT CONTROL PW BOARD
"After removing the rear cover and chassis.
1. As shown in Fig.2, remove the 3screws marked F
FF
F.
2. Then remove the FRONT CONTROL PWB.
REMOVING THE FRONT AV IN PW BOARD
"After removing the rear cover and chassis.
1. As shown in Fig.2, remove the 2screws marked G
GG
G.
2. Then remove the FRONT AV IN PWB.
REMOVING THE SPEAKER
"After removing the rear cover and chassis.
1. As shown in Fig.2, remove the 4screws marked H
HH
H.
2. Follow the same steps when removing the other hand speaker.
CHECKING THE MAIN PW BOARD
1. To check the backside of the MAIN PW Board.
(1) Pull out the chassis. (Refer to REMOVING THE CHASSIS).
(2) Erect the chassis vertically so that you can easily check the
backside of the MAIN PW Board.
[CAUTION]
•When erecting the chassis, be careful so that there will be no
contacting with other PWB.
•Before turning on power, make sure that the CRT earth wire and
other connectors are properly connected.
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.
TERMINAL BOARD
Fig. 1
E
D

No. 51686
A
V-27D201
A
V-32D201
7
FRONT CABINET
CRT SOCKET PWB
SPEAKER
REAR COVER
Fig. 2
LINE FILTER PWB
MAIN PWB
H
HH
H
IF PWB
POWER CORD
HVT
CHASSIS
FRONT CONTROL PWB
A
V SELECTOR
PWB
TERMINAL
BOARD
CLAW
CLAW
SPEAKER
FRONT AV IN PWB
PICTURE TUBE
G
GG
G
F
FF
F
H
HH
H
B
BB
B
C
CC
C
A
AA
A

No. 51686
A
V-27D201
A
V-32D201
8
REMOVE THE CRT (PICTURE TUBE)
!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.4.
3. Remove 4 screws marked by arrows with a box type
screwdriver as shown in Fig.4.
"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.5.
"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.
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
CRT CHANGE TABLE
CLOTH
A
PPROX.
35cm
Fig. 3
Fig. 4
Fig. 5
CRT
CABINET CRT
CHANGE TABLE
A
pprox.
20mm (Do not
coat grease on
this section
Silicon grease
should be coated
by 5mm or more
from the outside
diameter of anode
cap.
A
node button
(No sticking of
silicon grease) Coating position
of silicon grease
A
node cap
A
node button
CRT
Silicon grease
coating
CRT
CRT
CHANGE
TABLE
BOX
TYPE
SCREW
DRIVER
Fig. 6 Fig. 7

No.51686
A
V-27D201
A
V-32D201
9
REPLACEMENT OF CHIP COMPONENT
!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.
!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.
!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 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
AB
C
A
B
C

No. 51686
A
V-27D201
A
V-32D201
10
MEMORY IC REPLACEMENT
1. Memory IC
This model uses a memory IC.
This memory IC stores data for proper operation of the video and deflection circuits.
When replacing, be sure to use an IC written with the initial values of data.
2. Memory IC replacement procedure
Procedure Screen display
(1) Power off
Switch off the power and disconnect the power plug from the wall outlet.
(2) Replace the memory IC
Be sure to use memory ICs written with the initial data values.
(3) Power on
Connect the power plug into the wall outlet and switch on the power.
(4) System constant check and setting


It must not adjust without signal.
1) Press the
SLEEP TIMER key and set SLEEP TIMER for 0 min.
2) Before disappear the display of SLEEP TIMER settings, simultaneously
press the DISPLAY key and VIDEO STATUS key of the remote control
unit.
3) The SERVICE MENU screen of Fig.1 will be displayed.
4) While the SERVICE MENU is displayed, again simultaneously press
the DISPLAY and VIDEO STATUS keys to display the SYSTEM
CONSTANT screen in Fig.2.
5) Refer to the SYSTEM CONSTANT table and check the setting items. If
the value is different, select the setting item with the MENU UP/DOWN
key and adjust the setting with the MENU LEFT/RIGHT keys. (The
letters of the selected item are displayed in yellow.)
6) After adjusting, release the MENU LEFT/RIGHT key to store the setting
value.
7) Press the EXIT key twice to return the normal screen.
(5) Receive channel setting
Refer to the OPERATING INSTRUCTIONS (USER'S GUIDE) and set
the receive channels (Channels Preset) as described.
(6) User settings
Check the user setting items according to Table 2.
Where these do not agree, refer to the OPERATING INSTRUCTIONS
(USER'S GUIDE) and set the items as described.
(7) SERVICE MENU setting
Verify what to set in the SERVICE MENU, and set whatever is necessary
(Fig.1).For setting, refer to the SERVICE ADJUSTMENT.
EX
IT
EXIT BY
SERVICE MENU (MAIN MENU)
SERVICE MENU
PICTURE SOUND
THEATER OTHERS
LOW LIGHT HIGH LIGHT
RF AFC
VCO
(
CW
)
I2C BUS CTRL
SELECT BY
OPERATE BY
Fig.1
SYSTEM CONSTANT
MODEL : 


CCD :YES
V-CHIP :YES
CAN V-CHIP :NO
MN



SELECT BY
OPERATE BY EXIT BY
EX
IT
Fig.2

No. 51686
A
V-27D201
A
V-32D201
11
TABLE 1 (System Constant setting)
Setting value
Setting item Setting constant AV-27D201(US&CA) AV-32D201
(US&CA)/(A US&A CA)
MODEL AV-27D501 AV-32D501 AV-36D501
AV-36D201 AV-32D201 AV-27D201 AV-27D201 AV-32D201
CCD YES NO YES
V-CHIP YES NO YES
CANV-CHIP YES NO NO
TABLE 2 (User setting)
Setting item Setting value Setting item Setting value
1. Use remote controller keys
POWER
CHANNEL
VOLUME
INPUT
HYPER SURROUND
BBE
OFF
CH-02
Proper sound volume
TV
OFF
ON
DISPLAY
VIDEO STATUS OFF STANDARD
2. Settings of MENU
PICTURE ADJUST
TINT
COLOR
PICTURE
BRIGHT
DETAIL
NOISE MUTING
SET VIDEO STATUS
SOUND ADJUST
BASS
TREBLE
BALANCE
MTS
CLOCK / TIMERS
SET CLOCK
ON/OFF TIMER
CENTER
CENTER
CENTER
CENTER
CENTER
ON
ALL CENTER
CENTER
CENTER
CENTER
STEREO
Unnecessary to set
NO
INITIAL SETUP
TV SPEAKER
AUDIO OUT
COMPONENT-IN
LANGUAGE
CLOSED CAPTION
AUTO TUNER SET UP
CHANNEL SUMMARY
V-CHIP
SET LOCK CODE
ON
FIX
NO
ENG
CAPTION : CC1
TEXT : T1
TUNER MODE : AIR
Unnecessary to set
OFF
SET US TV RATINGS : ALL CLEAR
SET MOVIE RATINGS : ALL CLEAR
UNRATED : VIEW
Unnecessary to set

No.51686
A
V-27D201
A
V-32D201
12
SERVICE ADJUSTMENTS
BEFORE STARTING SERVICE ADJUSTMENT
1. There are 2 ways of adjusting this TV: One is with the RREMOTE CONTROL UNIT and the other is the conventional method using
adjustment part and components.
2. Adjustment with the remote control unit is made on the basis of the initial setting values, however, the new setting values which
set the screen to its optimum condition may differ from the initial settings.
3. Make sure that AC power is turned on correctly.
4. Turn on the power for the set and test equipment before use, and start the adjustment procedures after waiting at least 30 minutes.
5. Unless otherwise specified, prepare the most suitable reception or input signal for adjustment.
6. Never touch any adjustment parts, which are not specified in the list for this adjustment-variable resistors, transformers, condensers, etc.
7. Presetting before adjustment.
Unless otherwise specified in the adjustment instructions, preset the following functions with the remote control unit.
"User mode setting position
VIDEO STATUS STANDARD
HYPER SURROUND OFF
TINT, COLOR, PICTURE
BRIGHT, DETAIL CENTER
BASS, TREBLE, BALANCE CENTER
AUDIO OUT FIX
MEASURING INSTRUMENT
1. DC voltmeter(or digital voltmeter)
2. Oscilloscope
3. Signal generator ( Pattern generator ) [NTSC]
4. Remote control unit
ADJUSTMENT ITEMS
Check of B1 POWER SUPPLY
IF VCO adjustment
RF AGC adjustment
FOCUS adjustment
DEFLECTION adjustment
V. CENTER, V. SIZE adjustment
H. POSITION, H SIZE, SIDE PIN adjustment
VIDEO / CHROMA adjustment
WHITE BALANCE (Low light) adjustment
WHITE BALANCE (High light) adjustment
SUB BRIGHT adjustment
SUB CONTRAST adjustment
SUB COLOR adjustment
SUB TINT adjustment
DEMODULATION RATIO adjustment
MTS circuit adjustment
INPUT LEVEL adjustment
STEREO VCO adjustment
SAP VCO adjustment
FILTER check
SEPARATION adjustment

No. 51686
A
V-27D201
A
V-32D201
13
ADJUSTMENT LOCATIONS
IF PWB
CW
IC101
TOP
CRT EARTH
(BRAIDED ASS'Y)
TP-R
CRT SOCKET PWB
(SOLDER SIDE)
TOP
T
TP-B
TP-G
E2
TP-E( ) U
IC701
CN001
DEG.
D
TUNER
AV SELECTOR PWB
TP-E
( )
B1
(TP-91)
B1 1
3
HV
E1
CRT EARTH
(BRAIDED ASS'Y)
U



V CENTER SW
IC702
S
T
CW UPPER : FOCUS
LOWER : SCREEN
IC201
CN004
IF PWB
H
MAIN PWB
FRONT
CN002
MPX
CN003
H
PW F901
LINE FILTER PWB
FRONT
FRONT CONTROL PWB
FRONT
POWER MENU
VOL CH
DF
FRONT
FRONT AV IN PWB

No. 51686
A
V-27D201
A
V-32D201
14
BASIC OPERATION OF SERVICE MENU
1. The adjustment using SERVICE MENU
The following adjustment items use the SERVICE MENU in the series of the adjustment. The adjustments are made on the basis of the
initial setting values. The adjustment values which adjust the screen to the optimum condition can be different from the initial setting values.
With the SERVICE NEMU, various settings can be made, and they are broadly classified in the following items of settings.
PICTURE  Adjustment of the VIDEO/CHROMA and DEFLECTION circuits.
SOUND Adjustment of the AUDIO circuit.
THEATER  Setting of the THEATER MODE screen.
OTHERS  Setting of the screen that except the THEATER MODE.
LOW LIGHT Adjustment of the WHITE BALANCE (Low light) circuit.
HIGH LIGHT  Adjustment of the WHITE BALANCE (High light) circuit.
RF AFC Verification of the RF AFC adjustment. Because of it’s no requirement on the service (Do not adjust).
VCO (CW)  Adjustment of the IF VCO circuit.
I2C BUS CTRL Display and adjust the I2C BUS CTRL condition, but it is no requirement on service.
(Do not adjust and fix on.)
2. Key operation of the SERVICE MENU
[Enter to SERVICE MENU]
Press the SLEEP TIMER key and set the SLEEP TIMER for 0 MIN .
Then press the DISPLAY key and the VIDEO STATUS key of the remote control unit
at the same time. Then enter the SERVICE MENU screen shown in figure.
[Exit form SERVICE MENU]
When complete the adjustment work, press the EXIT key to return to the main
SERVICE MENU. And then press the EXIT key again, return to the normal screen.
[Select from main menu]
In main SERVICE MENU, press the UP or DOWN key on the remote control unit, to select any of the adjustment items.
The letters of the selected items are displayed in yellow.
[PICTURE, SOUND and OTHERS]
1) Select any of
PICTURE, SOUND or OTHERS items, then press the LEFT or RIGHT key in main SERVICE MENU, the selectable
screen will be displayed as shown in figure page later.
2) Then the UP or DOWN key is pressed, the PICTURE mode screen or the SOUND mode screen or the OTHERS mode screen is
displayed, and their setting can be performed.
1. OSD POS.

OTHERS MODE
SETTING VALUE
SETTING ITEM
1. BRIGHT

PICTURE MODE
SETTING ITEM SETTING VALUE
1. NOISE DET
STATUS


SOUND MODE
SETTING VALUE
SETTING ITEM
EX
IT
EXIT BY
SERVICE MENU (MAIN MENU)
SERVICE MENU
PICTURE SOUND
THEATER OTHERS
LOW LIGHT HIGH LIGHT
RF AFC
VCO
(
CW
)
I2C BUS CTRL
SELECT BY
OPERATE BY

No. 51686
A
V-27D201
A
V-32D201
15
[THEATER]
1) Select
THEATER item, then press the LEFT or RIGHT
key in main SERVICE MENU, the each screens will be
displayed as shown in figure page later.
2) Then the settings or verifications can be performed.
[LOW LIGHT / HIGH LIGHT]
1) Select any of LOW LIGHT or HIGH LIGHT items, then press the LEFT or RIGHT key in main SERVICE MENU, the each screens will
be displayed as shown in figure page later.
2) Then the settings or verifications can be performed.
3) The details of adjustments are described in the WHITE BALANCE page in ADJUSTMENT.
[RF AFC]
1) Select RF AFC item, then press the LEFT or RIGHT key in main SERVICE MENU, the each screens will be displayed as shown in
figure page later.
2) Then the settings or verifications can be performed.
[VCO(CW)]
1) Select the
VCO(CW) item, press the LEFT or RIGHT key in main SERVICE MENU, the screen will be displayed as shown in figure
page later.
2) Then UP or DOWN key is pressed, the VCO(CW) mode screen is displayed, and the VCO(CW) setting can be performed.
3) The details of adjustments are described in the WHITE BALANCE page in ADJUSTMENT.
[Adjustment steps]
1) Select the setting item, and enter to its mode.
2) Adjust its values. When the key is released, the setting values will be stored (memorized).
3) Returns to the previous screen.
TINT
COLOR
PICTURE
BRIGHT
DETAIL
R CUT.
G CUT.
B CUT.
R DRIVE
B DRIVE
GMM L
GMM G
D AX RY
D RT BY
GY R SW















THEATER MODE
THEATER MODE
SETTING VALUE
The letters of the selected
items are displayed in
yellow.

No. 51686
A
V-27D201
A
V-32D201
16
EX
IT
EXIT BY SELECT BY
EX
IT
TINT
COLOR
PICTURE
BRIGHT
DETAIL
R CUT.
G CUT.
B CUT.
R DRIVE
B DRIVE
GMM L
GMM G
D AX RY
D RT BY
GY R SW















BRIGHT 


 
HIGH LIGHT


 
RF AFC ON
FINE 
SELECT BY
OPERATE BY
EX
IT
EXIT BY
SERVICE MENU (MAIN MENU)
SOUND MODE OTHERS MODE
THEATER MODE
LOW LIGHT MODE
HIGH LIGHT MODE
RF AFC MODE
[DO NOT ADJUST]
I
2
C BUS CTRL MODE
[FIXED ON]
1. NOISE DET  
1. OSD POS.
I2C BUS ON
SELECT BY
OPERATE BY
EX
IT
EXIT BY
SCREEN PICTURE MODE
1. BRIGHT 
HIGH LEVEL
REFERENCE LEVEL
LOW LEVEL
SYNC : YES
VCO (CW) MODE
SERVICE MENU
PICTURE SOUND
THEATER OTHERS
LOW LIGHT HIGH LIGHT
RF AFC
VCO(CW) I2C BUS CTRL
SELECT BY
OPERATE BY EXIT BY


 

No.51686
A
V-27D201
A
V-32D201
17
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 set the
screen in its optimum condition may differ from the initial setting.
Initial setting value
No Setting (Adjustment) item Variable range AV-32D201
(US & CA) AV-32D201 (A US & A CA) AV-27D201 (US & CA)
1. BRIGHT 0255 127 127 127
2. PICTURE 0127 85 85 80
3. COLOR 0127 55 55 55
4. TINT 0127 70 70 70
5. TV DETAIL 0127 28 28 30
6. EXT BRIGHT 25 -1 -1 0
7. EXT PICT. 25 000
8. EXT COLOR 25 -4 -4 -3
9. EXT TINT 25 -4 -4 -4
10. EXT DETAIL 0127 30 30 30
11. CMP BRIGHT 25 -3 -3 -1
12. CMP PICT. 25 000
13. CMP COLOR 0127 88 88 88
14. CMP TINT 0127 54 54 53
15. CMP DETAIL 0127 30 30 30
16. TV APA DL 0 / 1 0 0 0
17. EXT APA DL 0 / 1 0 0 0
18. CMP APA DL 0 / 1 0 0 0
19. DC TRAIN 0 / 1 1 1 1
20. COLOR TRCK 0 / 1 0 0 0
21. TV PR/OVR 07777
22. EXT PR/OVR 07666
23. CMP PR/OVR 07666
24. B ST GAIN 015 10 10 10
25. W GMM LVL 015 4 4 4
26. W GMM GAIN 015 5 5 5
27. B ST SL PS 015 2 2 2
28. W CHARA CR 015 3 3 3
29. W CHARA SL 031 9 9 9
30. DEMO AX RY 031 17 17 17
31. DEMO RT BY 063 30 30 30
32. GY RT SW 03222
33. CMP D AX R 031 12 12 12
34. CMP D RT B 063 33 33 30
35. CMP GY SW 03222
36. CMP R CUT 50 -9 -9 -4
37. CMP G CUT 50 000
38. CMP B CUT 50 -9 -9 -4
39. CMP R DRV 99 000
40. CMP B DRV 99 000
2. Do not change the initial setting values of the setting (adjustment) items not listed in “ADJUSTMENT”.

No.51686
A
V-27D201
A
V-32D201
18
Initial setting value
No Setting (Adjustment) item Variable range AV-32D201
(US & CA) AV-32D201 (A US & A CA) AV-27D201 (US & CA)
41. V SIZE 0127 33 33 47
42. V S CR 063 15 15 20
43. V LIN 063 50 50 50
44. H POSI 063 11 11 13
45. H SIZE 063 33 33 18
46. SIDE PIN 063 28 28 25
47. TRAPEZ 063 38 38 37
48. EW COR TOP 0125 1 1 2
49. EW COR BTM 0125 3 3 4
50. BLK SW 0/1 0 0 0
51. TV AFC1 03222
52. EXT AFC1 03222
53. CUT OFFSET 0127 20 20 20
54. DRV OFFSET 063 22 22 22
55. AGC ADJ 0127 65 65 65
"SOUND MODE
Initial setting value
No Setting (Adjustment) item Variable range 32 inch 27 inch
1. NOISE DET. 0 / 1 1 1
2. IN LEVEL 063 15 15
3. FH MONITOR 0 / 1 0 0
4. STEREO VCO 063 30 30
5. PILOT CAN. 0 / 1 0 0
6. FILTER 063 30 30
7. LOW SEP. 063 28 28
8. HI SEP. 063 25 25
9. 5FH MON. 0 / 1 0 0
10. SAP VCO 063 27 27
11. IN GAIN 0 / 1 0 0
12. FIL. OFFSET 010 00
13. BBE BASS 15 -1 -1
14. BBE TRE 15 -1 -1
"THEATER MODE
Initial setting value
No Setting (Adjustment) item Variable range 32 inch 27 inch
1. TINT 20 -1 -1
2. COLOR 20 -6 -6
3. PICTURE 20 -21 -21
4. BRIGHT 20 -2 -2
5. DETAIL 15 -12 -12
6. R CUT 10 00
7. G CUT 10 00
8. B CUT 10 00
9. R DRIVE -99+50 +43 +37
10. B DRIVE -99+50 -56 -43
11. GMM L 15 00
12. GMM G 15 00
13. D AX RY 31 -10 -10
14. D RT BY 63 +7 +7
15. GY RT SW 3-1 -1

No.51686
A
V-27D201
A
V-32D201
19
"OTHERS MODE
Initial setting value
No Setting (Adjustment) item Variable range 32 inch 27 inch
1. OSD POS. 0722
2. CCD POS. 015 33
3. EOSEL 0 / 1 1 1
4. MAIN 1M WT 015 00
5. MENU COLOR -300-10 -10
6. MENU PICT. -300-10 -10
7. MENU BRI. -300-10 -10
"LOW LIGHT MODE
No Setting (Adjustment) item Variable range Initial setting value
All models
1. R CUTOFF (0255)480
2. R CUT SW 031
3. G CUTOFF 0255 50
4. B CUTOFF (0255)480
5. B CUT SW 031
"HIGH LIGHT MODE
No Setting (Adjustment) item Variable range Initial setting value
All models
1. R DRIVE (0127)480
2. R DRV SW 0 / 1 0
3. B DRIVE (0127)280
4. B DRV SW 0 / 1 0
"RF AFC MODE
Setting (Adjustment) item Variable range Initial setting value
All models
RF AFC ON/OFF ON
FINE -77+77 
"I2C BUS CTRL MODE
Setting (Adjustment) item Variable range Initial setting value
All models
I2C BUS ON/OFF [Fixed ON]
DO NOT
A
DJUST

No.51686
A
V-27D201
A
V-32D201
20