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Model
KV-AW21M50
Pages
84
Size
12.64 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-aw21m50.pdf
Date
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– 29 –
KV-AW21M50/M80/M80/H/M81/P50
RM-GA002
AVST Mono
(AV Stereo Monochip Model) 0 = Mono Model
1 = Stereo Model (Valid only mono option bit OPB3 bit 0 = 1)
3D OSD
(BX1L Full version GA Multi
0 = Normal with 3D Intelligent Picture OSD
Destination ONLY)
1 = Disable 3D Intelligent Picture OSD
3D Comb
3D comb feature
0 = Comb Not available
1 = Comb available
PiP
PiP feature
0 = PiP Not Available
1 = PiP available
OSD Language Selection     GA NTSC
1x1x = Complicated Chinese
                   GA
x1xx = Arabic/Russian
xx1x = Thai
xxx1 = Persian/Vietnamese
1xxx = Simplified Chinese
                   US
x1xx = Portugese
xx1x = French
xxx1 = Spanish
Signal Booster
Signal Booster feature
0 = disabled, 1 = enabled
MSYS ASD
(ASD Improvement for
  0 = disabled, 1 = enabled
M System channels)
*Only applicable when ASD = 1
COSMIC ASD
Automatic Standard Detection
  0 = disabled, 1 = enabled
Using COSMIC (Non-Stereo)
ASD
(Automatic Standard Detection)
0 = disabled, 1 = enabled
Tilt
(Tilt Correction/PIC Rotation)
0 = disabled, 1 = enabled
Band Edge
(VHF-H band Limit Position)
  0 = 427.25MHz,   1 = 429.25MHz
IP Plus
(Intelligent Picture &
0 = disabled, 1 = enabled
Intelligent Picture Plus)
Wide
(Wide Mode/V-Compressed)
0 = disabled, 1 = enabled
No. OPB5
Item
Signal
MSYS
COSMIC
ASD
Tilt
Band
IP
Wide
DEC
Booster
ASD
ASD
Edge
KV-AW21M50
1
0
1
0
0
0
1
0
162
KV-AW21M80
1
0
1
0
0
0
1
0
162
KV-AW21M80/H
1
0
1
0
0
0
1
0
162
KV-AW21M81
1
0
1
0
1
0
1
0
170
KV-AW21P50
1
0
0
0
0
0
1
0
130
No. OPB6
Item
AVST
Mono
3D OSD
3D Comb
PiP
OSD Language Selection
DEC
KV-AW21M50
1
0
0
0
1
0
0
0
136
KV-AW21M80
1
0
0
0
0
1
0
0
132
KV-AW21M80/H
1
0
0
0
0
1
0
0
132
KV-AW21M81
1
0
0
0
0
1
0
0
132
KV-AW21P50
1
0
0
0
1
0
0
0
136
– 30 –
KV-AW21M50/M80/M80/H/M81/P50
RM-GA002
3-3.
PICTURE QUALITY ADJUSTMENT
3-3-1. P MAX/CONTRAST ADJUSTMENT
1. Set TV to Video mode.
2. Set Picture mode to "Custom".
3. Input PAL 100% CB to TV set (OTHERS), NTSC 75%
CB (NTSC model).
4. Set PICT 003 "PWL" to 00h WHBL 017 "BLBG" to 01h.
5. Set the following condition:
PICTURE 100%, COLOR 0%, BRIGHTNESS 50%
6. Connect an oscilloscope to pin 4 (R Output) of CN004.
7. Select SADJ 000 "PMAX" with 1 and 4 button of the
commander then adjust VR with spec with 3 and 6
until reach the spec below:
1.90 ± 0.03 Vp-p = For 21" without VM models
8. Select Wide Mode to "ON" in TV and Video mode and
write "PMAX" data - 8 steps (for models with V-
Compression features only).
9. Then press [MUTING] 
t - to write the data.
10. Select "PWL" and "BLBG" back to initial data.
("PWL": 01h and "BLBG": 00h)
11. Then press [MUTING] 
t - again to write the data.
3-3-2. SUB COLOR ADJUSTMENT
1. Set TV to Video mode.
2. Set Picture mode to "Custom".
3. Input PAL 100% Color Bar(CB) to TV set (OTHER
MODEL).
4. INPUT NTSC 75% CB to TV set (NTSC MODEL).
5. Set PICT 006 "WTS" to 00h and Intelligent Picture to
"OFF".
6. Set the following condition:
PICTURE 50%, COLOR 50%, BRIGHTNESS 50%, HUE
50%, SHARPNESS 50%.
7. Connect an oscilloscope to pin 2 (B Output) of CN004.
8. Select SADJ 004 "SCOL" with 1 and 4 button of the
commander then adjust with 3 and 6 so that
V
B2
=V
B3
=V
B4
 (for PAL), and V
B1
=V
B4
 (for NTSC) then
write in the data +9 step offset.
9. Then press [MUTING] 
t - to write the data.
10. Set "WTS" back to original data and Intelligent Picture to
"ON".
11 Copy no.9 data to PAL TV & DVD mode (OTHER
MODEL) and NTSC TV & DVD mode (NTSC MODEL).
VR
Black
VB2 = VB3 = VB4 (for PAL)
VB1 = VB4 (for NTSC)
(Difference is within 70mV)
VB1
VB2 VB3 VB4
VB1 VB2 VB3 VB4
3-3-3. SUB HUE ADJUSTMENT
1. Set TV to Video mode.
2. Set Picture mode to "Custom".
3. Input NTSC 3.58 CB to TV set.
4. Set the following condition:
PICTURE 50%, COLOR 50%, BRIGHTNESS 50%,
HUE 50%, SHARPNESS 50%.
5. Select service mode and - 9 step offset from SADJ 004
"SCOL" using 1 and 3 button of the remote
commander.
6. Connect oscilloscope to pin 2 (B output) of CN004.
7. Set to service mode and select SADJ 001 "SHUE" with
1 and 4 button then adjust to V
B1
=V
B2
=V
B3
=V
B4
 with
3 and 6 button.
8. Press [MUTING] 
t - to write the data.
9. Select service mode SADJ 004 "SCOL" and +9 step
offset and write the data using [MUTING] 
t -.
10. Select TV channel with 3.58 and repeat item (3) to (7)
and +1 step data offset (NTSC model). (not used for this
model)
11. Press [MUTING] 
t - to write the data.
12. For single system model with NTSC 4.43, select TV
channel with NTSC 4.43 and repeat item (3) to (8).
The highest level of V
B1
, V
B2
, V
B3
, V
B4
must be aligned at the same time.
The ideal difference between
V
B2
 and V
B3
 is within ± 80mV.
13. Once adjustment is completed in Video mode, carry out
adjustment in DVD mode. Set TV to DVD mode. Input
NTSC 3.58 CB to DVD set and perform step 4 to 9 and
11.
3-3-4. SUB BRIGHT ADJUSTMENT
1. Set TV to RF mode.
2. Input PAL monoscope to RF mode.
3. Set Brightness 50% and Picture to "MINIMUM".
4. Select WHBL 010 "SBRT" with 1 and 4 button of the
remote commander and adjust its data with 3 and 6
so that cut-off level is 10 IRE, slightly glimmer: 20 IRE.
5. Write into the memory by pressing [MUTING] 
t -.
3-4.
GEOMETRY ADJUSTMENT
Geometry adjustment must be done for both color systems
PAL and NTSC.
3-4-1. GENERAL SETTING
a) Input Monoscope or Special Color Bar(SPCB) signal
using a pattern generator.
b) Set to Service Mode.
c) Select Category/Functionally Name (as in the service
list) using 1 and 4 button on the remote commander.
Eg. GEOM
d) Raise or Lower the data value using 3 and 6 button.
e) Press [MUTING] 
t - to save the data into memory.
Note 1: Geometry Adjustment must be performed for 4 different
modes: PAL 50Hz NORMAL MODE, PAL 50Hz WIDE
MODE, NTSC 60Hz NORMAL MODE, NTSC 60Hz
WIDE MODE.
VB1
VB2
VB3 VB4
80mV
– 31 –
KV-AW21M50/M80/M80/H/M81/P50
RM-GA002
Item No.
Function
Illustration
GEOM 013
Vertical Shift
(VPOS)
GEOM 011
Vertical Amplitude
(VSIZ)
Note: Adjust VSIZ to
12.6
±(SPCB)
11.3
±(PAL Monoscope)
11.7
±(NTSC Monoscope)
GEOM 000
Horizontal Shift
(HPOS)
GEOM 009
EW Trapezoid
(EWTZ)
GEOM 005
EW Width (EW)
(HSIZ)
Note: Adjust HSIZ to
16.6
±(SPCB)
14.8
±(PAL Monoscope)
15.5
±(NTSC Monoscope)
GEOM 002
Horizontal Bow
(HBOW)
GEOM 006
EW Parabola/Width
(EWPW)
(PW)
GEOM 007
EW Upper Corner
(UCOP)
Parabola
GEOM 008
EW Lower Corner
(LCOP)
Parabola
GEOM 001
Horizontal
(HPAR)
Parallelogram
GEOM 012
S-Correction(SC)
(SCOR)
GEOM 003
Vertical Linearity
(VLIN)
GEOM 004
Vertical Scroll
(VSCR)
3-4-2.  PAL 50Hz NORMAL MODE
a) Input PAL signal 50Hz in the Service Mode.
b) Set Wide Mode to "OFF".
c) Perform the below adjustments using the "GENERAL
SETTING" sequence. (refer 3-4-1)
d) Once adjustment is done for PAL 50Hz NORMAL
MODE, set Wide mode to "ON", and copy all PAL 50Hz
NORMAL MODE adjusted data to PAL 50Hz WIDE
MODE except VSCR.
e) Now, perform adjustment for NTSC 60Hz NORMAL
MODE.
f)
Set Wide mode to "OFF".
g) Perform adjustment items listed in the above table using
the "GENERAL SETTING" sequence. (refer 3-4-1).
h) Once adjustment is completed, set Wide mode to "ON"
and copy all NTSC 60Hz NORMAL MODE adjusted data
to NTSC 60Hz WIDE MODE except VSCR.
i)
Upon completing adjustment for all modes, reconfirm
VSIZ and VPOS.
–
 32 
–
KV
-A
W21M50/M80/M80/H/M81/P50
RM-GA002
SECTION 4
DIA
GRAMS
4-1.
BLOCK DIA
GRAM
VIF SAW
SIF SAW
MAIN
Power
Supply
RF AMP Tuner
TEQE3-901A
AGCin
12C
TV
L(Mono)
Video
L(Mono)
CV/YC
L(Mono)
R
CV/YC
L(Mono)
R
R
R
Fbl(RGBin)
# Only use for  KV-AW21M83 (India), KV-AW21M83/H (India).
   Only use for  KV-AW21M50 (Africa), KV-AW21M80 (Middle East), KV-AW21M80 (Saudi Arabia), KV-AW21M80/H (Saudi Arabia).
24.576MHz
YUV
AV2
AV1
MON OUT
Audio Amp
Buffer
TV 
out
Radio
BPF
Mon
out
AV1
in
AV2
in
YUV
in
5V
30V
IF
24-5.VIFIN1~2
29~30.SIF1~2
115.DGC RELAY 
114.STBY SW
STBY
3.3V
AC in ~
110-220V
CISPR/
PFC
3.3V
RESET
3.3V
5V
8V
3.3/5V
Relay
8V
AUDIO VCC
HV
DGC
+/-15V
Hout
FBT
L
3ch
Audio Amp
VAR
NVM
Pin out
H-drive
H-out
Rot. cct
V-out
VM
RGB Amp
feedback
3W
R
3W
3D
10W
 #
I
mute
EHT, ABL
Hp
1k
EW, Hd
L, R
V+, V-
RGB
+B
On/Off
stdby
Device 12C
12C
SIRCS
Key buttons
PLL
I/O Port
I/O Port
VIF & SIF
POWER
Color
Decoder
YUV
Processor
Jungle
RGB
DAC
Stereo,
DAP
A
D
C
ONE CHIP
Micro
Text
CC & V-chip
11.Xtalout
10.Xtalin
74~76.YUVout
70-72.VUYin
119.KEY
116.DI-JP/MODE1-EU
103.DI-JP/MODE2-EU/
MON SW
-MONO
126.AGC-MUTE
98, 99. SCL1,SDA1
108, 109.  SCL0,SDA0 
102.BINT
122~3.RED~GREEN LED
77.SCART FBL
78~80.RGB3
34,35 InLs,R5 
51.CY/Y4
52.C2
49-50 InL,R4
120.P3.3(S2)
31.AGCout
33.AVL/2SIF 120.S2
44.Intco-IF
43.IFVO
62,63.HPL, R
48.MON-OUT
36,37.OutL, R
111.S1/VC(GA)
85~87
RGBout
84.lk
65.VM
23. VD+
22. VD-
112.ROT CTRL
113.ROT SW
21.EWD
67.Hout
66.AFC 
32.EHTO
83.ABL
60,61
LSL,R
106.AUDIO MUTE
105.AUDIO STANDBY
58.CVB51/Y1
59,C1 
56, 57InL1,InR1
55.CV/Y2
53,54.InL,R2
70 CX
B-INT
LED
+B line
30V
R
LNA cct
*
*
*
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