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Model
KV-AR252M61
Pages
127
Size
11.54 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-ar252m61.pdf
Date
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– 33 –
KV-AR252M61
RM-W102
V.LINEARITY (VLIN), S CORRECTION (SCOR), EW
PARABOLA/WIDTH (EWPW), AND EW TRAPEZIUM
(EWTZ) ADJUSTMENTS
1. Input Monoscope signal.
2. Activate the Service Mode.
3. Select VLIN, SCOR, EWPW, and EWTZ with 
1
 and
4
.
4. Adjust with 
3
 and 
6
 for the best Picture.
5. Press [MUTING] then 
-
 to save into the memory.
EW TRAPEZIUM (EWTZ)
EW PARABOLA/WIDTH (EWPW)
S CORRECTION (SCOR)
V LINEARITY (VLIN)
HORIZONTOL PARALLELOGRAM (HPAR), H BOW
(HBOW), UPPER PIN (UCOP) AND LOW PIN (LCOP)
ADJUSTMENTS
1. Input Monoscope signal.
2. Activate the Service Mode.
3. Select the HPAR, HBOW, UCOP, and LCOP with 
1
and 
4
.
4. Adjust with 
3
 and 
6
 for the best picture.
5. Press [MUTING] then 
-
 to save into the memory.
UPPER PIN (UCOP)
LOW PIN (LCOP)
HORIZONTOLPARALLELOGRAM (HPAR)
HORIZONTOL BOW (HBOW)
3-5. PICTURE DISTORTION ADJUSTMENT
H. CENTER ADJUSTMENT (HPOS)
1. Input Monoscope signal.
2. Activate the Service Adjustment Mode.
3. Select the HPOS item with 
1
 and 
4
.
4. Adjust the value of HPOS with 
3
 and 
6
 for the best
horizontal center.
5. Press [MUTING] then 
-
 to save into the memory.
H. SIZE ADJUSTMENT (HSIZ)
1. Input Monocope signal.
2. Activate the Service Adjustment Mode.
3. Select HSIZ with 
1
 and 
4
.
4. Adjust with 
3
 and 
6
 for the best horizontal size.
5. Press [MUTING] then 
-
 to save into the memory.
V. SIZE ADJUSTMENT (VSIZ)
1. Input Monocope signal.
2. Activate the Service Adjustment Mode.
3. Select theVSIZ item with 
1
 and 
4
.
4. Adjust value of VSIZ with 
3
 and 
6
 for the best
vertical center.
5. Press [MUTING] then 
-
 to save into the memory.
 V. CENTER ADJUSTMENT (VPOS)
1. Input Monocope signal.
2. Activate the Service Adjustment Mode.
3. Select VPOS item with 
1
 and 
4
.
4. Adjust value of  VPOS with 
3
 and 
6
 for the best
vertical center.
5. Press [MUTING] then 
-
 to save into the memory.
(
)
(
)
–
 34 
–
KV
-AR252M61
RM-W102
SECTION 4
DIA
GRAMS
4-1.
BLOCK DIA
GRAM
VIF
SAW
SIF
 SAW
MAIN
Power
Supply
Stdby
Power
FSS TUNER
G/Y
B/PB
R/PR
L
R
24.576MHz
DVD in
Rear AV in
 Front AV in
Mon out
Mon
out
AV
1,2
in
AV
1
in
RGB/
DVD
in
AC in ~
110-220V
CISPR/
PFC
Relay
LOW B
Stdy 3.3
AUDIO VCC
Hout
FBT
L
2ch
3ch
For India only
Audio Amp
ATT
NVM
Pin out
H-drive
H-out
V-out
DF/DQP
VM
RGB Amp
Rot Amp
LCC Amp
feedback
5W 
R
5W
6+6
+12
3D Woofer
L,R
H
P
EW, Hd
L,R
V+, V-
PWM
RGB
SIRCS
Key 
buttons
PLL
I/O Port
I/O Port
VIF & SIF
POWER
Color
Decoder
YUV
Processor
Jungle
RGB
A
D
C
D
A
C
Stereo,
DSP
Micro
Text
CC & V-chip
L
E
D
+B
– 35 –
KV-AR252M61
RM-W102
4-2. CIRCUIT BOARDS LOCATION
A Board
C Board
F Board
H1 Board
VM Board
BC Board
B Board
J1 Board
H2 Board
4-3. SCHEMATIC DIAGRAM
Note:
•
All capacitors are in 
µF unless otherwise noted.
•
All electrolytic capacitors are rated at 50V unless otherwise
noted.
•
All resistors are in ohms.
k
Ω = 1000Ω, MΩ = 1000kΩ
•
Indication of resistance which does not have rating electrical
power is as follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
•
: nonflammable resistor.
•
¢
: internal component.
•
: panel designation or adjustment for repair.
•
All variable and adjustable resistors have characteristic curve
B unless otherwise noted.
•
Readings are taken with a color-bar signal input.
no mark
: Common
(
)
:  PAL
[
]
: NTSC 3.58
•
Readings are taken with a 10M
Ω digital multimeter.
•
Voltage are dc with respect to ground unless otherwise
noted.
•
Voltage variations may be noted due to normal production
tolerances.
•
All voltage are in Volt.
•
✽
: Cannot be measured.
•
Circled numbers are waveform references.
•
: B +bus.
•
: B –bus.
•
  
k
: signal path.
Note: The reference number which starts with Wxxx
(eg: W003) indicates a wire to wire connection.
Note: Components marked as XX are not fitted on this
model.
Reference information
RESISTOR
: RN
METAL FILM
: RC
SOLID
: FPRD
NONFLAMMABLE CARBON
: FUSE
NONFLAMMABLE FUSIBLE
: RS
NONFLAMMABLE METAL OXIDE
: RB
NONFLAMMABLE CEMENT
: RW
NONFLAMMABLE WIREWOUND
: 
✽
ADJUSTMENT RESISTOR
COIL
: LF-8L
MICRO INDUCTOR
CAPACITOR
: TA
TANTALUM
: PS
STYROL
: PP
POLYPROPYLENE
: PT
MYLAR
: MPS
METALIZED POLYESTER
: MPP
METALIZED POLYPROPYLENE
: ALB
BIPOLAR
: ALT
HIGH TEMPERATURE
: ALR
HIGH RIPPLE
Note:
The component identified by shading and
mark 
! are critical for safety. Replace only
with part number specified.
Note: “A” board schematic diagram is divided into 6 blocks.
Each block is named by its function and block “alphabet”.
eg: Processor (Block A)
Joint connection between boards can be identified using
the block alphabet followed by sequence numbering.
eg: -<HOUT-DEFL (A10) To D11
Meaning: Block A joint A10 is connected to Block D joint
D11
A
12345
6
7
B
C
D
E
F
G
H
I
J
–
 36 
–
KV
-AR252M61
RM-W102
4-3-1.
C Boar
d Schematic Dia
gram
R774
150
3W
RS
250V
10
C751
 
 
33k
R1824
10
C1803
*
R756
C783
0.001
B
1
1P
CN702
GND
2SA1175-HFE
   BUFFER
Q1800
XX
R776
1
1P
CN705
GND
33k
R1822
R786
XX
1
3
4
WHT
3P
CN703
200V
GND
H1
10k
R1805
1/2W
100k
R760
XX
R1807
5.0MM
JW1713
25V
1000
C1809
10
C1804
110M
RV750
33k
R1809
250V
4.7
C781
0.47
R794
D781
XX
JW1804
5.0MM
R1813
2.2k
10k
R1816
R784
XX
2SA1175TP-HFE
Q701
XX
XX
R1804
33k
R1810
1k
R1800
4
3
2
  IC1800
 
  LA6510
NS DRIVE
XX
R777
1/2W
560k
R773
*
R758
R1814
2.2k
2SC2785-HFE
  AMPLIFIER
Q1801
10
C1800
JW1751
XX
63V
22
C756
4.7k
R1811
XX
C782
33k
R1812
2SC2785-HFE
 AMFLIFIER
Q1804
1/2W
100
R763
3.3k
R1825
1SS119-25 
PROTECT
D1803
GP08D PROTECTOR
D750
R1815
10k
XX
R783
1
2
3
WHT
3P
CN1802
N/S COIL-
NC
N/S COIL+
3
4
5
6
7
8
9
10
11
13
1
GND
GND
1
       J751
SOCKET,CRT
L751
XX
1
CN704
1P
1000V
10uH
L750
XX
R775
GP08D  PROTECTOR
D1808
5.6k
R1801
250V
4.7
C754
4.7k
R1806
    1SS119-25
    PROTECT 
D1804
1/2W
100
R765
      D754
  HSS82-TJ
PROTECTOR
8
7
6
5
4
3
1
2
TDA6108AJF/N1
RGB AMPLIFIER
IC751
B IN
G IN
R IN
GND
IK
VDD
R OUT
G OUT
B OUT
RD5.6ESB2
   CLAMP
D782
0.1W
47k
RV1800
C759
XX
B
2SC2785-HFE
Q1802
22uH
L780
1/2W
100
R764
Q1803
XX
R767
XX
R766
XX
5.6k
R1823
*
R757
4.7k
R1808
D780
XX
XX
R778
2kV
0.0047
E
C752
R713
XX
R768
XX
R785
XX
1
2
3
4
5
6
YEL
6P
CN1801
VD+
GND
5V
15V
ROT_CTRL
ROT_SW
JW3880
XX
XX
R3801
4
3
2
XX
 IC3800
XX
 R3811
XX
C3802
XX
C3800
XX
 R3809
  D3801
 XX
 Q3801
XX
  Q3800
XX
XX
R3804
XX
R3807
XX
 R3808
XX
  R3813
XX
   R3800
 R3814 
    XX
XX
 R3812
XX
 R3803
D3800
XX
 D3802
XX
XX
  R3802
XX
XX
 C3801
XX
 R3810
JW3881
XX
Q3802
XX
XX
JW752
*
L752
*
L753
XX
JW753
*
L754
XX
JW754
R781
*
1/4W
RN
1k
R1826
RN
XX
R3815
 R3805 
FPRD
  R1803
1.2
1.2
 R1802
FPRD
1
2
3
4
5
WHT
XX
 CN3800
LC(B)
LC(E)
GND
7V
11V
*
R754
*
R752
*
R753
1/2W
470k
R780
1SS133T-77
D783
B
C784
0.001
1/2W
R795
100
1SS133T-77
D784
250V
0.1
C753
PT
 NL700
LAMP,NEON
 R1821
33k
RN
*
R796
*
C785
*
R797
D785
*
D786
* D787
*
2kV
E
C786
0.0047
1
 CN706
XX
GND
1
   CN707
XX
GND
1
2
3
4
5
6
7
7P
CN701
WHT
GND
B OUT
G OUT
R OUT
GND
1K
9V
2kV
E
C787
0.0047
5.0MM
JW1881
5.0MM
JW1880
XX
 R3806
RN
6
7
8
9
10
11
13
1
4
3 5
J752
XX
C788
*
*
C789
C790
FV
RCV
C
TO A BOARD
CN507
TO ROTATION COIL
ROTATION 
CIRCUIT
LANDING CORRECTION
CIRCUIT
RGB AMPLIFIER
TO A BOARD
CN512
TO L.C. COIL
TO FBT
TO A BOARD
CN505
TO A BOARD
CN004
FV
GND
1
56
7
8
9 10
1
5
6
7
8
9 10
D755
HSS82-TJ
PROTECTOR
D756
HSS82-TJ
PROTECTOR
5V
15V
1000V
200V
R
G
B
R
G
B
9
(RGB AMPLIFIER)
B-BX1l12023-...-C..-AR252M61
1
2
3
4
5
6
*
PVM AMP
:RN
H
KG
G2
CV KR G1
G4 HV
KB
A60LPN70X
PICTURE TUBE
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