JVC AV-28X5BU, AV-28X5SU, AV-32X5BU, AV-32X5SU Service Manual

SERVICE MANUAL

COLOUR TELEVISION

YA26220054

AV-28X5BU, AV-28X5SU,
AV-32X5BU, AV-32X5SU

BASIC CHASSIS

ML2

1 2 3

4 5 6

7 8 9

0

AV

MENU

P

TV OK

P

F
.T

/
L

TV

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

COPYRIGHT © 2005 Victor Company of Japan, Limited

No.YA262

2005/4

SPECIFICATION

Contents

Items

Dimensions ( W × H × D ) 76.2 cm × 52.8 cm × 49.3 cm 86.4 cm × 58.7 cm × 55.0 cm

Mass 39.0 kg 53.0 kg

TV RF System CCIR (B/G, I, D/K, L)

Colour System PAL

SECAM
NTSC3.58 / NTSC4.43 (Only EXT mode)

Stereo System A2 (B/G, D/K) / NICAM (B/G, I, D/K, L)

Receiving
Frequency

French CATV 116 MHz - 172 MHz

Intermediate
Frequency

Colour Sub
Carrier Frequency

Teletext System TOP (German system)

Power Input AC220 V - AC240 V, 50 Hz

Power Consumption 120 W, Standby : 2.5 W 130 W, Standby : 2.5 W

Picture Tube Visible size : 66 cm [measured diagonally]

High Voltage 31.0 kV (+1 kV / -1.5 kV) (at zero beam current)

Speaker 13 cm × 6.5 cm oval type × 2

Audio Power Output 10 W + 10 W

Aerial Input Terminal 75 Ω unbalanced, coaxial
EXT-1 / EXT-2 / EXT-3 (Input / Output) 21-pin Euro connector (SCART socket × 3)

EXT-4 (Input) S-Video

Audio output 0-1000 mV (rms), Low impedance, RCA pin jack × 2
Headphone Jack 3.5 mm stereo mini jack × 1
Remote Control Unit RM-C64 (AAA/R03 dry cell battery × 2)

VHF 47 MHz - 470 MHz

UHF 470 MHz - 862 MHz

220 MHz - 469 MHz

VIF 38.9 MHz (B/G, I, D/K, L)

SIF 33.4 MHz (5.5 MHz :B/G)

32.9 MHz ( 6.0 MHz:I )

32.4 MHz (6.5 MHz :L, D/K)

PAL 4.43 MHz

SECAM 4.40625 MHz / 4.25 MHz

NTSC 3.58 MHz / 4.43 MHz

FLOF (Fastext)
WST (Standard system)

(H : 58.3 cm × V : 33.0 cm)

Mini-Din 4 pin × 1
Y : 1 V(p-p) positive (negative sync, 75Ω)
C : 0.3 V(p-p) (Burst signal, 75Ω)

Video

1 V(p-p) 75 Ω, RCA pin jack × 1

Audio (L/R)

500 mV(rms) (-4 dBs), High impedance, RCA pin jack × 2

AV-28X5BU
AV-28X5SU

AV-32X5BU
AV-32X5SU

Visible size : 76 cm [measured diagonally]

(H : 67.4 cm × V : 38.4 cm)

Design & specifications are subject to change without notice.

1-2 (No.YA262)

SECTION 1

PRECAUTION

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 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) 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 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

recommended that the B1 setting should be checked or
adjusted (See B1 POWER SUPPLY check).

(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 10kΩ

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 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 3000V 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.

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
sensitivity in the following manner. Connect a 1500

Ω per volt or more

Ω

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 1000 /V,
OR MORE SENSITIVITY)

0.15 F AC-TYPE

PLACE THIS PROBE

1500 10W

GOOD EARTH GROUND

ON EACH EXPOSED
ME TAL PAR T

(No.YA262)1-3

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 FEATURES

ZOOM

This function can change the screen size according to the
picture aspect ratio.

PICTURE MODE

This function can adjust the picture settings automatically.

3D CINEMA SOUND

You can enjoy sounds with a wider ambience.

2.2 MAIN DIFFERENCE LIST

Item AV-28X5BU AV-28X5SU AV-32X5BU AV-32X5SU

CABINET COLOUR Black Silver Black Silver

MAIN PWB SML-1352A-U2 ← SML-1351A-U2 ←
POWER & DEF PWB SML-2352A-U2 ← SML-2351A-U2 ←
CRT SOCKET PWB SML-3302A-U2 ← SML-3303A-U2 ←

2.3 21-PIN EURO CONNECTOR (SCART) : EXT-1/EXT-2/EXT-3

Pin No. Signal designation Matching value EXT-1 EXT-2 EXT-3

1 AUDIO R output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT) Not used

2 AUDIO R input 500mV(rms) (Nominal), High impedance Used (R1) Used (R2) Used (R3)

3 AUDIO L output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT) Not used

4 AUDIO GND Used Used Used

5GND (B) Used Used Used

6 AUDIO L input 500mV(rms) (Nominal), High impedance Used (L1) Used (L2) Used (L3)

7 B input 700mV

FUNCTION SW

8

(SLOW SW)

9GND (G) Used Used Used

10 SCL / T-V LINK Not used

11 G input 700mV

12 SDA Not used Used (SDA2) Not used

13 GND (R) Used Used Used

14 GND (YS) Used Not used Not used

15 R / C input

16 Ys input (FAST SW) Low : 0V-0.4V, High : 1V-3V, 75

17 GND (VIDEO output) Used Used Used

18 GND (VIDEO input) Used Used Used

19 VIDEO output 1V

20 VIDEO / Y input 1V

21 COMMON GND Used Used Used

Low : 0V-3V
High : 8V-12V, High impedance

R : 700mV
C : 300mV

(P-P)

(P-P)

, 75Ω Used Used Not used

(B-W)

, 75Ω Used Used Not used

(B-W)

, 75Ω

(B-W)

, 75Ω

(P-P)

(Negative sync), 75Ω Used (TV OUT) Used (LINE OUT) Not used
(Negative sync), 75Ω Used Used Used

MOVIE THEATRE

This function displays a cinema film picture more smoothly and
naturally on the screen.

DIGITAL VNR

This function cuts down the amount of noise in the original
picture.

DigiPure Pro

This function uses the latest in digital technology to give you a
natural-looking picture.

Used Used Used

Used

(SCL2 / TV-LINK)

Used (R) Used (C2/R) Used (C3)

Not used

Ω Used Used Not used

(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

1-4 (No.YA262)

2.4 TECHNINAL INFORMATION

2.4.1 MAIN MI-COM (CPU) PIN FUNCTION

Pin

Pin name I/O Function

No.

1 TCK I Not used 65 D2 I/O Data bit for PP-RAM/SD-RAM
2 TMS I Not used 66 D12 I/O Data bit for PP-RAM/SD-RAM
3 TDI I Not used 67 D10 I/O Data bit for PP-RAM/SD-RAM
4 TDO O Not used 68 VSS33 -- GND
5 P2.8 I Remote control 69 VDD33 i 3.3V
6 P2.9 I Key scan for front control CH+(On: L) 70 D4 I/O Data bit for PP-RAM/SD-RAM
7 P2.10 I Key scan for front control CH- (On: L) 71 D3 I/O Data bit for PP-RAM/SD-RAM
8 P2.11 I Key scan for front control MENU (On: L) 72 D11 I/O Data bit for PP-RAM/SD-RAM

9 P2.12 I Receive data for TV_LINK 73 RSTIN I Reset for main CPU
10 P2.13 O Power on /off control (ON: L) 74 P3.0 I/O Data for inter IC control bus
11 P2.14 I
12 P2.15 I Main power detection (Normal: H) 76 P3.2 I Remote control
13 VSS33 -- GND 77 P3.3 O Power indication control (On: L)
14 VDD33 i 3.3V 78 P3.4 O Audio muting (Muting: H)
15 P4.5/CS3 O Output data for TV_LINK 79 P3.5 O Audio muting (Muting: H)
16 P4.4/A20 O Address bit for PP-RAM/SD-RAM 80 P3.6 O Not used
17 P4.3/A19 O Address bit for PP-RAM/SD-RAM 81 P3.7 O Not used
18 P4.2/A18 O Address bit for PP-RAM/SD-RAM 82 P3.8 I/O Not used
19 P4.1/A17 O Address bit for PP-RAM/SD-RAM 83 P3.9 I/O Not used
20 VSS25 -- GND 84 VSS33 -- GND
21 VDD25 I 2.5V 85 VDD33 I 3.3V
22 P4.0/A16 O Address bit for PP-RAM/SD-RAM 86 VSS25 -- GND
23 A8 O Address bit for PP-RAM/SD-RAM 87 VDD25 I 2.5V
24 A7 O Address bit for PP-RAM/SD-RAM 88 TXD0 I/O Not used
25 A9 O Address bit for PP-RAM/SD-RAM 89 RXD0 I/O Not used
26 A6 O Address bit for PP-RAM/SD-RAM 90 P3.12 O Not used
27 A5 O Address bit for PP-RAM/SD-RAM 91 P3.13 O Not used
28 A10 O Address bit for PP-RAM/SD-RAM 92 P3.15 O Not used
29 A11 O Address bit for PP-RAM/SD-RAM 93 P5.14 I Not used
30 A12 O Address bit for PP-RAM/SD-RAM 94 P5.15 I Headphone connection detection (Connect: H)
31 VSS33 -- GND 95 TRIG_IN -- Not used
32 VDD33 i 3.3V 96 TRIG_OUT -- Not used
33 A4 O Address bit for PP-RAM/SD-RAM 97 P6.2 O Notifies bus free state (Stop mode: H)
34 A3 O Address bit for PP-RAM/SD-RAM 98 P6.3 O Clock for inter IC control bus
35 A2 O Address bit for PP-RAM/SD-RAM 99 P6.4 I/O Data for inter IC control bus
36 A1 O Address bit for PP-RAM/SD-RAM 100 P6.5 O MSP reset (Reset: H)
37 A0 O Address bit for PP-RAM/SD-RAM 101 P6.6 -- Not used
38 A13 O Address bit for PP-RAM/SD-RAM 102 VSYNC I Vertical sync
39 A14/RAS O Row address strobe for SD-RAM access 103 HSYNC I Horizontal sync
40 A15/CAS O Column address strobe for SD-RAM access 104 COR/RSTOUT O Output for contrast reduction
41 VSS33 -- GND 105 BLANK/CORBLA O Ys for OSD / Teletext (blanking)
42 VDD33 I 3.3V 106 VDD33 I 3.3V
43 MEMCLK O Clock for SD-RAM 107 VSS33 -- GND
44 CSSDRAM O Chip select signal for SD-RAM device 108 XTAL1 I System clock (4MHz)
45 CLKEN O Enable for memory clock 109 XTAL2 O System clock (4MHz)
46 CSROM O Chip select signal for PP-ROM device 110 VSSA -- GND
47 RD O External memory read strobe for PP-ROM 111 VDDA I 2.5V
48 UDQM O Write disable for high byte 112 R O Red for OSD / Teletext
49 LDQM O Write disable for low byte 113 G O Green for OSD / Teletext
50 WR O Memory write strobe 114 B O Blue for OSD / Teletext
51 D15 I/O Data bit for PP-RAM/SD-RAM 115 VSSA -- GND
52 VSS33 -- GND 116 VDDA -- 2.5V
53 VDD33 I 3.3V 117 CVBS2 I Composite video for WSS
54 D7 I/O Data bit for PP-RAM/SD-RAM 118 VSSA -- GND
55 D0 I/O Data bit for PP-RAM/SD-RAM 119 VDDA I 2.5V
56 D14 I/O Data bit for PP-RAM/SD-RAM 120 CVBS1B I Ground for CVBS1A
57 D8 I/O Data bit for PP-RAM/SD-RAM 121 CVBS1A I Composite video for Teletext decorder
58 D6 I/O Data bit for PP-RAM/SD-RAM 122 VSSA -- GND
59 D1 I/O Data bit for PP-RAM/SD-RAM 123 VDDA I 2.5V
60 VSS33 -- GND 124 P5.0 I AFC voltage for tuner
61 VDD33 I 3.3V 125 P5.1 -- Not used
62 D13 I/O Data bit for PP-RAM/SD-RAM 126 P5.2 I AGC voltage for tuner
63 D9 I/O Data bit for PP-RAM/SD-RAM 127 P5.3 -- Not used
64 D5 I/O Data bit for PP-RAM/SD-RAM 128 TMODE I Test mode

X-ray HB LB EW correction Protection detection (Normal: H)

Pin
No.

Pin name I/O Function

75 P3.1 I/O Data for inter IC control bus

(No.YA262)1-5

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

3.1.1 REMOVING THE REAR COVER

(1) Remove the 13 screws [A], then withdraw the REAR

COVER toward you.

3.1.2 REMOVING THE SIDE CONTROL JACK ASS'Y

• Remove the REAR COVER.
(1) Remove the 1 screw [B] and 2 craw, then remove the SIDE

CONTROL JACK ASS’Y.

3.1.3 REMOVING THE SIDE CONTROL PWB

• Remove the REAR COVER.

• Remove the SIDE CONTROL JACK ASSY.
(1) Remove the 2 screws [C], then remove the SIDE

CONTROL PWB.

3.1.4 REMOVING THE CHASSIS BASE

• Remove the REAR COVER.
(1) Slightly raise the both sides of the chassis by hand and

remove the 2 claws under the both sides of the CHASSIS
BASE from the front cabinet.

(2) Withdraw the CHASSIS backward.

(If necessary, take off the wire clamp, connectors etc.)

3.1.5 REMOVING THE AV TERMINAL BOARD

• Remove the REAR COVER.
(1) Remove the 3 screws [D].
(2) Remove the 2 claws under the CHASSIS, then remove the

AV TERMINAL BOARD.

3.1.6 REMOVING THE SPEAKER

• Remove the REAR COVER.

• Remove the SIDE CONTROL JACK ASSY.

• Remove the CHASSIS BASE.
(1) Remove the 8 screws [E], then remove the SPEAKER

GRILL.
(2) Remove the 2 screws [F], then remove the SPEAKER.
(3) Follow the same steps when removing the other hand

MAIN SPEAKER.

3.1.7 CHECKING THE PW BOARD

• To check the back side of the PW Board.
(1) Pull out the CHASSIS BASE. (Refer to REMOVING THE

CHASSIS BASE).

(2) Erect the CHASSIS BASE vertically with the HVT side

facing up so that you can easily check the back side of the
PW board.

CAUTION:

• When erecting the CHASSIS BASE, 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 PWB.

3.1.8 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.

1-6 (No.YA262)

SPEAKER GRILL

FRONT CABINET

CRT SOCKET PWB

FRONT CONTROL PWB

CONTROL BASE

SPEAKER

F

< FRONT SIDE VIEW >

F

F

POWER & DEF PWB

MI-COM/100Hz PWB

Claw

SPEAKER

F

CHASSIS BASE

Claw

E

B

C

SIDE CONTROL PWB

SIDE CONTROL BASE

REAR COVER

Claw

MAIN PWB

AV JACK PWB

AV TERMINAL
BOARD

D

Claw

POWER CORD

Fig.1

A

(No.YA262)1-7

3.1.9 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. 2).

(2) While keeping the surface of CRT down, mount the TV set

on the CRT change table balanced will as shown in Fig. 2.

(3) Remove 4 screws marked by arrows with a box type

screwdriver as shown in Fig. 3.

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. 4.

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.2

CRT

Fig.3

APPROX.
35cm

BOX
TYPE
SCREW
DRIVER

CRT

CABINET

CRT
CHANGE TABLE

Fig.4

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.5.Wipe around the anode button with clean and dry cloth. (Fig.5)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.6)

Silicon grease product No. KS - 650N

CRT

Anode button

Silicon grease

coating

Approx.
20mm (Do not
coat grease on
this section

Anode button
(No sticking of
silicon grease)

Silicon grease
should be coated
by 5mm or more
from the outside
diameter of anode
cap.

Coating position
of silicon grease

1-8 (No.YA262)

Anode cap

Fig.5 Fig.6

3.2 MEMORY IC REPLACEMENT

• This model uses the memory IC.

• This memory IC stores data for proper operation of the video and drive circuits.

• When replacing, be sure to use an IC containing this (initial value) data.

3.2.1 MEMORY IC REPLACEMENT PROCEDURE

1. Power off

Switch off the power and disconnect the power plug from the
AC outlet.

2. Replace the memory IC

Be sure to use the memory IC written with the initial setting
values.

3. Power on

Connect the power plug to the AC outlet and switch on the
power.

4. System constant check and setting

* It must not adjust without signal.

(1) Press the [INFORMATION] key and the [MUTING] key

of the REMOTE CONTROL UNIT simultaneously.
(2) The SERVICE MENU screen will be displayed (Fig. 1).
(3) While the SERVICE MENU is displayed, press the

[INFORMATION] key and [MUTING] key simultaneously,

and the SYSTEM CONSTANT SET screen will be

displayed (Fig. 2).
(4) Check the setting values of the SYSTEM CONSTANT

SET. If the value is different, select the setting item with

the [FUNCTION  / ] key, and set the correct value

with the [FUNCTION /] key.

MUTING

(5) Press the [MENU] key to memorize the setting value.
(6) Press the [INFORMATION] key twice, and return to the

normal screen.

5. Receiving channel setting

Refer to the OPERATING INSTRUCTIONS and set the
receive channels (Channels Preset) as described.

6. User settings

INFORMATION

FUNCTION

Check the user setting items according to the given in page
later. Where these do not agree, refer to the OPERATING
INSTRUCTIONS and set the items as described.

7. SERVICE MODE setting

Verify what to set in the SERVICE MODE, and set whatever is
necessary (Fig.1). Refer to the SERVICE ADJUSTMENT for
setting.

SERVICE MENU

1. IF 2. V/C

3. AUDIO 4. DEF

5. VSM PRESET 6. STATUS

7. 8. SURROUND

9. SHIPPING (OFF) 0. BUS FREE

1-9 : SELECT

SYSTEM CONSTANT SET

1. DESTINATION EU

OK

- /+ : STORE i : EXIT

1 2 3

4 5 6

7 8 9

TV OK

/

Fig.1

Fig.2

0

P

P

F

.T/L

i i : EXIT

AV

MENU

MENU

FUNCTION

/

TV

3.2.2 SYSTEM CONSTANT SETTING

Setting item Setting content

AV-28X5BU AV-28X5SU AV-32X5BU AV-32X5SU

Setting value

1.DESTINATION EU / EK / EI EU EU EU EU

2.CRT TYPE 16:9 / 4:3 16:9 16:9 16:9 16:9

3.PICTURE TILT YES / NO YES YES YES YES

4.POWER BASS YES / NO YES YES YES YES

5.SPATIAL SURR YES / NO YES YES YES YES

6.PIC&TEXT YES / NO YES YES YES YES

7.PROGRESSIVE YES / NO YES YES YES YES

(No.YA262)1-9