No.51948
May 2002
AV-36D503
AV-36D303
AV-36D203
1
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.
AV-36D503
/Y /R /M
AV-36D303
/Y /R /M
AV-36D203
/Y /R /M
CONTENTS
! SPECIFICATIONS
2
! SAFETY PRECAUTIONS
3
!
FEATURES
4
! FUNCTIONS
4
! MAIN DIFFERENCE LIST
6
!
HOW TO INDENTIFY MODELS
7
! SPECIFIC SERVICE INSTRUCTIONS
8
! SERVICE ADJUSTMENTS
13
!
PARTS LIST
35
STANDARD CIRCUIT DIAGRAM
2-1
SERVICE MANUAL
COLOR TELEVISION
BASIC CHASSIS
GE
[RM-C251]
AV-36D503
[RM-C252]
AV-36D303, 203
No.51948
AV-36D503
AV-36D303
AV-36D203
2
SPECIFICATIONS
ITEMS
CONTENTS
Dimensions (W×
×
×
×
H×
×
×
×
D)
37-7/8"×30-1/2"×24-1/2" (962mm×773mm×621mm)
Mass
149.6Ibs / 68.0kg
TV System and Color system
TV RF System CCIR(M)
Color System NTSC-M
Sound System BTSC (Multi Channel Sound)
TV Receiving Channels and Frequency
VL Band
(0206) 54MHz88MHz
VH Band
(0713) 174MHz216MHz
UHF Band
(1469) 470MHz806MHz
CATV Receiving Channels and Frequency
Low Band
(0206, A-8) by (0206&01)
High Band
(0713) by (0713)
Mid Band
(A1) by (1422)
Super Band
(JW) by (2336)
Hyper Band
(W+1W+28) by (3764)
Ultra Band
(W+29W+84) by (65125)
Sub Mid Band
(A8, A4A1) by (01, 9699)
TV/CATV Total Channel 180 Channels
Intermediate Frequency
Video IF Carrier
45.75 MHz
Sound IF Carrier
41.25 MHz (4.5MHz)
Color Sub Carrier
3.58 MHz
Power Input
120V AC, 60Hz
133W [AV-36D503]
Power Consumption
130W [AV-36D303, AV-36D203]
Picture Tube
36" (90cm) measured diagonally, Full Square
High Voltage
31kV±1.3kV (at zero beam current)
Speaker
2"×4-3/4" (5×12cm) Oval type×2
Audio Power Output
5W+5W
Input terminals
INPUT1
Video
1Vp-p, 75, RCA pin
S-Video
Mini din 4 pin
Y : 1Vp-p, negative sync provided when terminated with 75
C : 0.286Vp-p, burst signal when terminated with 75
Audio L/R
500mVrms(-4dBs), high impedance, RCA pin
INPUT2
Video
1Vp-p, 75, RCA pin
Component (Y, Pb, Pr)
RCA pin
Y :
1Vp-p, negative sync provided when terminated with 75
Pb/Pr : 0.7Vp-p, 75
Audio L/R
500mVrms(-4dBs), high impedance, RCA pin
INPUT3
Video
1Vp-p, 75, RCA pin
Audio L/R
500mVrms(-4dBs), high impedance, RCA pin
Audio Output
500mVrms(-4dBs), low Impedanc e, 1kHz when modulated 100%, RCA pin
AV Compu link
interface
3.5mm mini jack
Antenna terminal
75 (VHF/UHF) Terminal, F-Type Connector
RM-C251 (AA/R6/UM-3 battery×2) [AV-36D503]
Remote Control Unit
RM-C252 (AA/R6/UM-3 battery×2) [AV-36D303, AV-36D203]
Design & specifications are subject to change without notice.
(54MHz804MHz)
No. 51948
AV-36D503
AV-36D303
AV-36D203
3
SAFETY PRECAUTIONS
1. The design of this product c ontains spec ial hardware, many
circuits and components s pecially for safety purposes. For
continued protection, no changes should be made to the
original des ign unless authorized in writing by the manufacturer.
Replacement parts must be identic al to thos e used in the
original circuits. Servic e should be performed by qualified
pers onnel only.
2. Alterations of the design or circuitry of the products s hould not
be made. Any design alterations or additions will void the
manufacturer's
warranty
and
will
further
relieve
the
manufacturer of respons ibility for pers onal injury or property
damage resulting therefrom.
3. Many electrical and mechanic al parts in the products have
special safety-related c haracteris tics. These charac teristics are
often not evident from visual inspection nor can the protection
afforded by
them necess arily
be obtained by
using
replac ement components rated for higher voltage, wattage, etc.
Replacement parts
whic h have thes e special
s afety
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 replac ement which
does not have the same safety characteristics as the
recommended replac ement part shown in the parts list of
Service manual may c aus e shock, fire, or other haz ards.
4. Use isolation transformer when hot chassis.
The chassis and any sub-chassis contained in s ome products
are c onnected 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. Do n't short between the LIVE side ground and ISOLATED
(NEUTRAL) side ground or EARTH side ground when
repairing.
Some model's power c ircuit is partly different in the GND. The
differenc e of the GND is shown by the LIVE : (") s ide 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 meas uring apparatus (oscilloscope etc.)
the LIVE side GND and ISOLATED(NEUTRAL) side GND or
EARTH side GND at the s ame time.
If above note will not be kept, a fuse or any parts will be brok en.
6. If any repair has been made to the chassis, it is recommended
that the B1 setting should be chec ked 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, arc ing and possible
component damage, therefore operation under excess ive high
voltage c onditions should be kept to a minimum, or should be
prevented. If severe arc ing occurs, remove the AC power
immediately and determine the cause by visual inspection
(incorrect installation, crac ked or melted high voltage harness,
poor s oldering, etc.). T o 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 c hec k high voltage by drawing an arc. Us e a high
voltage meter or a high voltage probe with a VTVM. Discharge
the picture tube before attempting meter connection, by
connec ting 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 dres s
in the high voltage c ircuit area. W here a short circuit has
occurred, those c omponents that indic ate evidence of
overheating
s hould
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 c abinet (antenna
terminals, video/audio input and output terminals, Control
knobs, metal c abinet, screwheads, earphone jac k, c ontrol
shafts, etc.) to be sure the product is safe to operate without
danger of electrical shoc k.
(1) Dielectric Strength Test
The is olation between the AC primary circuit and all metal parts
exposed to the us er, 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 sec ond.
(. . . . Withs tand a voltage of 1100V AC (r.m.s.) to an appliance
rated up to 120V, and 3000V AC (r.m.s.) to an applianc e 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 c ord directly into the AC outlet (do not use a
line is olation transformer during this check.). Using a "Leakage
Current Tester", measure the leakage current from each
exposed metal part of the cabinet, partic ularly 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 exc eed 0.2mA AC
(r.m.s.).
"
"
"
"
Alternate Check Method
Plug the AC line c ord 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. Connec t 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 res istor 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, revers e 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 tropic al area, this must not exceed 0.3V AC
(r.m.s.). This corresponds to 0.2mA AC (r.m.s.).
0.15F AC-TYPE
1500 10W
GOOD
EARTH
GR OUND
PLACE THIS PROBE
ON EACH EXPOSED
METAL PART
AC VOLTMETER
(HAVING 1000 /V,
OR MOR E SENSITIVITY)
11. High voltage hold down circuit check.
After repair of the high voltage hold down circuit, this circuit
shall be c hec ked to operate correctly.
See item "Ho w to check the high voltage hold down
circuit".
A
V
This mark shows a fast
operating fuse, the
letters indicated below
show the rating.
No. 51948
AV-36D503
AV-36D303
AV-36D203
4
FEATURES
" Title TELE-TEXT broadcast of C1, C2, T1, and T2 formula is receivable.
"
The voice multiplex function of the MTS system is built in.
" By the THEATER PROfunction, a reality to which it is viewing and listening in the movie theater c an be tas ted.
" By the EZ SURF func tion, c hannel ID and a program name are displayed in the screen automatic ally [Only for AV-36D503].
" By the COMPU LINK function, operation interlocked with the DVD deck can be performed from remote c ontrol.
" By the three-line digital comb filter, the refreshed image can be seen.
"
Two programs can be dis played on the screen by the 2 tuner PIP circuit [Only for AV-36D503].
" Expression of a favorite screen can be chosen by the VIDEO STATUS function.
"
A program c an be enjoyed with a powerful s ound by the HYPER SURROUND function.
" Sinc e the V chip is built in, it c an choose, view and listen to a healthy program.
"
The RETURN PLUS function is built in.
" A quick favorite program c an be look ed for by the HYPER-SCAN function.
" Since the component signal input terminal is equipped, it reappears direct without deteriorating the signal from DVD.
FUNCTIONS
REMOTE CONTROL UNIT (RM-C251, RM-C252)
This illustration is written about RM-C251. There are no buttons of
EZ SURF and
PIP in the RM-C252.
VCR / DVD KEY
TV / CATV KEY
INPUT KEY
DISPLAY KEY
SLEEP TIMER KEY
HYPER SURROUND KEY
VIDEO STATUS KEY
THEATER PRO KEY
BBE KEY
MUTING KEY
VOLUME -/+ and
CURSOR
/
KEY (In the MENU screen)
MENU KEY
POWER KEY
CHANNEL NUMBER KEY
LIGHT KEY
V-CHIP KEY
CHANNEL +/ and
CURSOR / KEY (In the MENU screen)
EXIT KEY
VCR CONTROL KEY
EZ SURF KEY [Only for RM-C251]
PIP CONTROL KEY [Only for RM-C251]
20
2
1
3
4
5
6
7
8
9
10
11
12
13
21
14
15
16
18
17
19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
20
21
No. 51948
AV-36D503
AV-36D303
AV-36D203
5
1
2
3
4
5
6
7
8
FRONT PANEL CONTROLS
INPUT 3 VIDEO TERMINAL
VOLUME /+ KEY
INPUT 3 AUDIO L TERMINAL
POWER KEY
INPUT 3 AUDIO R TERMINAL
ON TIMER / POWER LED
MENU KEY, CURSOR KEY
CHANNEL /+ KEYS
CURSOR
/
KEYS
REAR TERMINAL
1
2
3
4
6
5
INPUT 1 TERMINAL (S-VIDEO, V, L, R)
INPUT 2 TERMINAL (V, L, R )
AUDIO OUTPUT TERMINAL
AV COMPULINK TERMINAL
ANTENNA TERMINAL
INPUT2 COMPONENT SIGNAL TERMINAL (Y, PB, PR)