SERVICE MANUAL
COPYRIGHT © 2004 Victor Company of Japan, Limited
No.YA093
2004/6
COLOR TELEVISION
YA093
2004
6
AV-32S565 /Y,
AV-32S575 /Y,
AV-32S585 /Y
TABLE OF CONTENTS
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41
BASIC CHASSIS
SC2
[AV-32S565]
[AV-32S575]
[AV-32S585]
1-2 (No.YA093)
SPECIFICATION
Design & specifications are subject to change without notice.
Items
Contents
AV-32S565
AV-32S575
AV-32S585
Dimensions ( W
× H × D )
87.7cm
× 69.9cm × 56.5cm
(34-5/8"
× 27-5/8" × 22-1/4")
93.9cm
× 68.5cm × 57.0cm (37" × 27" × 22-1/2")
Mass
66.0 kg (145.2 lbs)
65.0 kg (143.1 lbs)
TV RF System
CCIR (M)
Color System
NTSC
Sound System
BTSC (Multi Channel Sound)
Teletext System
Closed caption (T1-T4 / CC1-CC4)
TV Receiving Channels
and Frequency
VHF Low
VHF High
UHF
CATV
02ch to 06ch : 54MHz to 88MHz
07ch to 13ch : 174MHz to 216MHz
14ch to 69ch : 470MHz to 806MHz
54MHz to 804MHz
Low Band : 02 to 06, A-8 by 02 to 06&01
High Band : 07 to 13 by 07 to 13
Mid Band : A to I by 14 to 22
Super Band : J to W by 23 to 36
Hyper Band : W+1 to W+28 by 37 to 64
Ultra Band : W+29 to W+84 by 65 to 94, 100 to 125
Sub Mid Band : A4 to A1 by 96 to 99
TV / CATV Total Channel
180 Channels
Intermediate Frequency
Video IF
Sound IF
45.75 MHz
41.25 MHz (4.5MHz)
Color Sub Carrier
3.58 MHz
Power Input
AC120V, 60Hz
Power Consumption
215W
Picture Tube (Visible size)
80cm (32") (Diagonally), H: 49.6cm
× W: 65.6cm (H: 19-5/8" × W: 25-7/8")
High Voltage
32kV(+1kV/-1.3kV) (at zero beam current)
Speaker
5cm
× 12cm (2" × 4-3/4"),
Oval type
× 2
6.5cm
× 13cm (2-1/2" × 5"), Oval type × 2
Audio Power Output
7.5W + 7.5W
10W + 10W
Antenna terminal (VHF/UHF)
F-type connector, 75
unbalanced, coaxial
Video / Audio input
[INPUT-1/2/3/4]
Component Video
[INPUT-1/2]
1080i / 720p
480p / 480i
S-Video
[INPUT-1/3/4]
Video
Audio
RCA pin jack
× 6
Y : 1V (p-p) (Sync signal: 0.35V(p-p), 3-value sync.), 75
Pb/Pr : ±0.35V(p-p), 75
Y : 1V (p-p), Positive (Negative sync provided), 75
Cb/Cr : ±0.7V(p-p), 75
Mini-DIN 4 pin
× 3
Y: 1V (p-p), Positive (Negative sync provided), 75
C: 0.286V (p-p) (Burst signal), 75
1V (p-p), Positive (Negative sync provided), 75
, RCA pin jack × 4
500mV (rms), High impedance, RCA pin jack
× 8
Digital input
Video/Audio
(Digital)
---
HDMI jack
× 1
(Digital-input terminal is not compatible with picture
signals of computer signal)
Audio (Anarog)
---
RCA pin jack
× 2, 500mV(rms) (-4dBs), high impedance
Audio output
Variable
Fix
RCA pin jack
× 2
More than 0 to 1000mV (rms) (+2.2dBs) [AV-32S575 / AV-32S585]
500mV(rms), (-4dBs), low impedance (400Hz when modulated 100%)
Subwoofer output
---
RCA pin jack
× 1
More than 0 to 1000mV (rms) (+2.2dBs),
low impedance (100Hz when modulated 100%)
Center channel input
---
RCA pin jack
× 1, 500mV(rms) (-4dBs), high impedance
AV compulink III
---
3.5mm mini jack
× 1
Remote Control Unit
RM-C1257G (AA/R6/UM-3 battery
× 2)
(No.YA093)1-3
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) 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 (NEU-
TRAL) side ground or EARTH side ground when repairing.
Some model's power circuit is partly different in the GND. The differ-
ence of the GND is shown by the LIVE : (
) side GND, the ISOLAT-
ED (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.
(6) 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).
(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, 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 1100V AC
(r.m.s.) for a period of one second.
(. . . . Withstand a voltage of 1100V AC (r.m.s.) to an appliance rat-
ed 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
per volt or more sensitivity in the
following manner. Connect a 1500
10W resistor paralleled by
a 0.15
µF 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.
1-4 (No.YA093)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1
FEATURES
D.I.S.T. (Digital Image Scaling Technology)
This system uses line interpolation to double the number of
scanning lines and achieve high resolution, flicker-free picture.
SMART CAPTION [AV-32S585]
Smart caption will appear when you press the MUTING button,
only on channels where the broadcast contains CLOSED
CAPTION information.
SMART SOUND [AV-32S575 / AV-32S585]
Decreases high sound levels, giving a regulated sound level.
FLAT SQUARE CRT
It became legible from any position by CRT with few reflection
and reflect lumps on the flat screen.
DIGITAL COMB FILTER
By the 3D 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 THEATER GAME]
DIGAITAL INPUT [AV-32S575 / AV-32S585]
Digital-in will display when any picture signal (480i/ 480p,
720p/ 1080i) in Digital-in is displayed.
V-CHIP
Since the V-CHIP is built in, it can choose, view and listen to a
healthy program.
MTS STEREO
The voice multiplex function of the MTS system is built in.
(MTS = Multi channel Television Sound system)
NATURAL CINEMA
Watching the movie or animation, press the Natural Cinema to
adjust the out line of the images to make thin more sharp.
BBE [AV-32S575 / AV-32S585]
High definition audio adds natural, clear and extraordinary
sound quality to any program.
VIDEO INPUT LABEL [AV-32S565 / AV-32S575]
This function is used to label video input connections for the
onscreen displays.
A.H.S. [AV-32S575 / AV-32S585]
Adds a more spacious surround sound. Music gives basic
effect and Movie for more effect.
HYPER SURROUND [AV-32S565]
Creates a deep, three-dimensional sound effect by channeling
the audio through the TV's front-firing speakers.
2.2
MAIN DIFFERENCE LIST
Item
AV-32S565
AV-32S575
AV-32S585
FRONT CABINET COLOR
SILVER
SILVER / GRAY
POWER LED
GREEN
BLUE
BBE
NO
YES
SURROUND
HYPER SURROUND
A.H.S
SMART SOUND
NO
YES
SMART CAPTION
NO
YES
CHANNEL LABEL
YES
NO
VIDEO INPUT LABEL
YES
NO
XDS ID DISPLAY
NO
YES
INTERACTIVE PLUG IN MENU
NO
YES
CENTER CHANNEL INPUT
NO
YES
SUBWOOFER OUTPUT
NO
YES
AUDIO OUTPUT
FIX
VARIABLE / FIX
DIGITAL INPUT
NO
YES (HDMI)
AV COMPULINK III
NO
YES
(No.YA093)1-5
2.3
TECHNICAL INFORMATION
2.3.1 MAIN MICRO COMPUTER (CPU) FUNCTION
Pin No.
Pin name
I/O
Function
Pin No.
Pin name
I/O
Function
1
BS_RXD
- Not used
43
P74
- Not used
2
/MICON_V
I V. sync for OSD
44
ON_TIM
- Not used
3
LB_PRO
I Low B protect detection [Detect: H]
45
SBO0
- Not used
4
NC
- Not used
46
SBD0
- Not used
5
/RST
I CPU reset [Reset: L]
47
SBT1
I Use for on board writing [for factory]
6
FORMAT_EDGE
O NC
48
TS_PC_DET
- Not used
7
/TEST
O Operation test for CPU
49
SRQ
- Not used
8
OSD_YS
I Ys (blanking) for OSD
50
BS1.5CTL
- Not used
9
SDA4
I/O Data for Inter IC control (for DIST)
51
EE_ABL
- Not used
10
SYNCSEL
O Not used
52
ABL/ACL
O ABL/ACL control
11
A_MU
O Audio muting [Muting: H]
53
CHROMA
I Not used
12
/MICON_H
O H. sync for OSD
54
DC_COTL
I Black level DC reproduce control
13
M_MU
O NC
55
FMT1
- Not used
14
OSDXI
O Keep for OSD oscillation
56
FMT2
- Not used
15
OSDXO
O Keep for OSD oscillation
57
AFC_1
I Sub AFT voltage
16
SDA2
I/O Data for Inter IC control (for MTS)
58
/LOB_POW
O Low B power control [Power on: L]
17
AC_IN
I AC(60Hz) for timer clock
59
COMPLINK
I/O AV compulink lll control
18
SCL2
O Clock for Inter IC control (for MTS)
60
/POWERGOOD
I Power condition check
19
TU_POW
- Not used
61
/MECA_ON
O Power SW interrupt [Pushing:L]
20
VCOI
I LPF
62
/MAIN_POW
I Main power control [Power on: L]
21
PDO
I LPF
63
NC
- Not used
22
/IP_RESET
I Reset for DIST [Reset: L]
64
/B1_POW
O B1 power control [Power on: L]
23
OSD_YM
I YM (transparence) for OSD
65
C/N
I Main AFT voltage
24
OSD_B
O Blue for OSD
66
X_RAY_M
I X-ray protect detection [Protect: 0.7V]
25
POWER_LED
O Lighting for POWER LED [Lighting: H]
67
EE_CDS
- Not used
26
OSD_G
O Green for OSD
68
KEY2
I/O Key scan for front key (CH+ Vol-/+)
27
OSD_R
O Red for OSD
69
KEY1
O Key scan for front key (Menu CH-)
28
VREF
I Reference voltage for OSD
70
SCL1
O Clock for Inter IC control (for Memory)
29
IP_ERR
I AMDP program load error detection [Detect: L ]
71
SDA1
I/O Data for Inter IC control (for Memory)
30
IREF
O Reference current for OSD
72
REMO
I Remote control [No input: H]
31
COMP
O Phase adjust for OSD
73
POW_DET
- Not used
32
AVDD
I +3.3V
74
VSS
- GND
33
CLL
O For low clamp level
75
OSC2
O System clock oscillation (4MHz)
34
VREFLS
I Reference voltage in for sub CCD
76
OSC1
I System clock oscillation (4MHz)
35
SUB_CCD
I Composite video for sub CCD
77
VDD
I +3.3V
36
NC
- Not used
78
SCL0
O Clock for Inter IC control (for Generally)
37
VSS
- GND
79
VOUTENB
- Not used
38
MAIN_CCD
O Composite video for main CCD
80
SDA0
I/O Data for Inter IC control (for Generally)
39
VREFHS
O Reference voltage for main CCD
81
P57
- Not used
40
CLH
O For high clamp level
82
BS_TXD
- Not used
41
VDD/VPP
I +3.3V
83
BS_TXD
- Not used
42
SCL4
O Clock for Inter IC control (for DIST)
84
P_MUTE
O Picture muting [Muting: H]