Sony KV-21FS105 (serv.man2) Service Manual ▷ View online
18
KV-21FS105
KV-21FS105
4-4. SERVICE DATA LISTS
Reg # ITEM
FUNCTION
RANGE
FIX
DATA NTSC PAL M PAL N
VIDEO
RF
AVERAGE
DATA
1
HSIZ
Horizontal Size Adjustment
0-63
35
35
35
40
2
HPOS
Horizontal Position Adjustment
0-63
33
33
33
25
3
VBOW
Vertical Line Bowing Adj.
0-15
5
5
5
7
4
VANG
Vertical line Bowing Slant Adj.
0-15
7
7
7
9
5
TRAP
Horizontal Trapezoid Adj.
0-15
7
7
7
7
6
PAMP
Horizontal PIN Distortion Adj.
0-63
7
7
7
12
7
UPIN
Upper PIN Distortion Adj.
0-63
36
36
36
34
8
LPIN
Lower PIN Distortion Adj.
0-63
36
36
36
37
9
VM
Velocity Modulation On/Off
0,1
0
10
BLKO
Vertical Blanking On/Off
0,1
0
0
11
VMLV
Velocity Modulation Level
0-3
2
12
AGN2
Aging 2
0,1
0
0
13
REFP
Reference Pulse Position
0,1
0
0
14
VBLK
Vertical Blanking On/Off
0,3
0
0
15
JPSW
0,1
0
0
16
VSIZ
Vertical Size Adjustment
0-63
40
47
47
26
17
VPOS
Vertical Position Adj.
0-63
32
32
32
35
18
VLIN
Vertical Linearity Adj.
0-15
7
5
19
SCOR
Vertical "S" Correction Adjustment
0-15
6
4
20
VZOM
16:9 CRT Z Mode On/Off
0,1
0
0
21
EHT
Vertical High-Voltage Correction
0-15
15
15
22
ASP
Aspect Ratio Control
0-63
47
47
23
SCRL
16:9 CRT Z Mode Trans. Scroll
0-63
31
31
24
HBLK
Horizontal Blanking On/Off
0,1
1
1
25
LBLK
Left Blanking Adjustment
0-15
11
11
26
RBLK
Right Blanking Adjustment
0-15
8
8
27
VUSN
V Saw Waveform Compress
0,1
0
0
28
HDW
Horizontal Drive Pulse Width
0,1
1
1
29
EWDC
"Parabola" EW/ D.C. Adjustment
0.1
0
0
30
LVLN
Lower Screen BTM Vertical Line Adj.
0-15
0
0
31
UVLN
Upper Screen BTM Vertical Line Adj.
0-15
0
0
32
HTRAP Horizontal Trapezoid Adj.
0,1
****
0
33
RDRV
R Output Drive Control
0-63
31
21
34
GDRV
G Output Drive Control
0-63
21
14
35
BDRV
B Output Drive Control
0-63
21
14
36
RCUT
R Output Cutoff Control
0-15
10
10
37
GCUT
G Output Cutoff Control
0-15
6
7
38
BCUT
B Output Cutoff Control
0-15
6
7
39
DCOL
Dynamic Color On/Off
0,1
0
1
40
SHUE
Sub HUE
0-31
12
14
41
SCOL
Sub Color
0-31
14
14
14
14
42
SBRT
Sub BRIGHTNESS
0-31
13
13
43
RON
R Output On/Off
0,1
1
1
44
GON
G Output On/Off
0,1
1
1
45
BON
B Output On/Off
0,1
1
1
46
AXPL
Axis PAL
0,1
0
0
47
AXNT
Axis NTSC
0,1
0
1
48
CBPF
Chroma BPF On/Off
0,1
1
1
49
CTRP
Y TRAP FILTER On/Off
0,1
1
1
50
COFF
Color On/Off
0,1
0
0
51
KOFF
Set Color Killer
0,1
0
0
52
SSHP
Sub SHARPNESS
0-15
6
5
53
SHPF
SHARPNESS Circuit Fo
0,1
1
54
PREL
Pre-Shoot / Over-Shoot
0,1
1
1
55
Y-DC
DC Transmission Ratio Switching
0,1
1
56
GAMM
Gamma Correction Amnt
0-3
1
57
ABLM
ABL Mode Switching
0,1
1
1
58
VTH
ABL CD VHT Switching
0,1
1
1
59
YDEL
Y Delay Time Control
0-15
7
7
60
NCOL
No Color ID
0,1
1
1
61
FSC
FSC Out On/Off
0,1
1
1
62
K-ID
Killer ID Control On/Off
0,1
0
0
63
HOSC
Horizontal VCO Oscillation Freq.
0-15
12
12
Palette mode controls this register
Palette mode controls this register
Palette mode controls this register
Palette mode controls this register
Palette mode controls this register
19
KV-21FS105
KV-21FS105
Notes:
No. 1–100 show the order that each adjustment mode may be selected while in service mode.
Data Range shows the range of possible settings for each adjustment mode.
Initial Data shows the standard settings for each adjustment mode.
No. 1–100 show the order that each adjustment mode may be selected while in service mode.
Data Range shows the range of possible settings for each adjustment mode.
Initial Data shows the standard settings for each adjustment mode.
SERVICE
ID0
25
Reg # ITEM
FUNCTION
RANGE
FIX
DATA NTSC PAL M PAL N
VIDEO
RF
AVERAGE
DATA
64
VSS
Vertical Sync Slice Level
0,1
**
0
65
HSS
Horizontal Sync Slice Level
0,1
0
0
66
HMSK
0,1
0
0
67
VTMS
Select Signal VTIM Pin
0-3
0
0
68
CDMD
Vertical Count Down Mode Switching
0-3
3
***
69
AFC
AFC Loop Gain Switching
0-3
0
0
0
0
70
FIFR
Field Frequency
0-3
*
3
71
SBAL
Sub Balance
0-15
5
7
72
SBAS
Sub Bass
0-7
0
9
73
STRE
Sub Treble
0-7
3
9
74
BBEH
BBE High
0-15
*****
75
BBEL
BBE Low
0-15
5
12
76
SRND
Surround
0,1
0
13
77
AUX
SRS, Simulated
0-3
0
78
DISP
O.S.D Display Position
0-130
15
15
79
TROT
Tilt Correction
0-63
31
31
31
80
HCLW
Horizontal Count Lower Limit
0-255
16
16
16
81
HCHG
Horizontal Count High Limit
0-255
64
64
64
82
SYSC
Color System
0-7
4
6
83
VENH
Vertical Enhancement
0-7
4
84
PDSO
0,1
0
85
CK
0,1
0
86
VNL
0-15
3
3
87
HPK
0,1
0
0
88
HPKO
0,1
89
CORE
0-3
1
1
90
TRAP
0,1
1
1
91
CHTR
0,1
0
0
92
CHPF
0,1
1
1
93
ENHO
0,1
0
0
94
ID0
0-225
25
SEE ID MAP
95
ID1
0-225
3
SEE ID MAP
96
ID2
0-225
91
SEE ID MAP
97
ID3
0-225
2
SEE ID MAP
98
ID4
0-225
233
SEE ID MAP
99
ID5
0-225
17
SEE ID MAP
100
ID6
0-225
0
SEE ID MAP
Palette mode controls this register
Palette mode controls this register
4-5. ID MAP TABLE
MODEL
Destination
ID-0 ID-1 ID-2 ID-3 ID-4 ID-5 ID-6
KV-21FS105
(BRAZIL)
63
3
91
2
233
9
128
20
KV-21FS105
KV-21FS105
Display Position Adjustment (DISP)
1. Input a color-bar signal.
2. Set to Service Adjustment Mode.
3. Select DISP with 1 and 4 .
4. Adjust values of DISP with 3 and 6 to adjust characters to the
center.
5. To save into memory, press MUTING then ENTER .
6. Check to see if the text is displayed on the screen.
SERVICE DISP 15
Display
Item
Mode
Item
Data
Data
Sub Bright Adjustment (SBRT)
1. Input a monoscope signal.
2. Activate the Service Adjustment Mode.
3. Set the PICTURE and BRIGHTNESS to minimum.
4. Select the SBRT item with 1 and 4 .
5. Adjust the values of SBRT with 3 and 6 to obtain a faintly visible
crosshatch.
6. To save into memory, press MUTING then ENTER .
Sub Hue, Sub Color Adjustment
(SHUE, SCOL)
(SHUE, SCOL)
1. Input color-bar signal and set level to 75%.
2. Activate the Service Adjustment Mode.
3. Select the DCOL item and set the value to “0”.
4. Connect an oscilloscope probe to the C Board,
CN17152 Pin 4 .
5. Select SHUE and SCOL with 1 and 4 .
6. While showing the SHUE item, adjust the waveform with 3 and 6
until the second and third bars show the same level
(V2 = V3 ± 0.2 Vp-p).
(V2 = V3 ± 0.2 Vp-p).
7. While showing the SCOL item, adjust the waveform with 3 and 6
until the fi rst and fourth bars show the same level
(V1 = V4 ± 0.2 Vp-p).
(V1 = V4 ± 0.2 Vp-p).
NOTE: SCOL must be adjusted in all modes NTSC, PAL-M, and PAL-N.
V1 V2 V3 V4
9. Select the DCOL item and reset to “1”.
10. To save into memory, press MUTING then ENTER .
4-6. MB BOARD ADJUSTMENTS
H. Frequency (Free Run) Check
1. Input a TV mode (RF) with no signal.
2. Connect a frequency counter to base of Q501
(TP-500 H. DRIVE).
3. Check H. Frequency for 15735 ± 200 Hz, and 15650 ± 200 Hz for
PAL-N.
V. Frequency (Free Run) Check
1. Select video 1 with no signal input.
2. Set the conditions for a standard setting.
3. Connect the frequency counter to TP-508 (V OUT) or CN501 pin 6
(V DY+) and ground on the A Board .
4. Check that V. Frequency shows 60 ± 4 Hz for NTSC,
50 ± 4 Hz for PAL-N.
Drive (RDRV) Adjustment
1. Input a color-bar signal and set the level to 75%.
2. In Standard mode, set PICTURE to maximum and COLOR to
minimum.
3. Activate the Service Adjustment Mode.
4. Set both GON and BON items. Using 3 and 6 set each to the
4. Set both GON and BON items. Using 3 and 6 set each to the
following values: (Leave RON set to “1”.)
SERVICE RON
Display
Item
Mode
Item
Data
Data
1
R ON: ON
(1)
G ON: OFF
(0)
B ON: OFF
(0)
5. Select DCOL item and set it to “0”.
6. Connect an oscilloscope probe to C Board, J701 pin 12 (KR)
(Red Out).
7. Select RDRV with 1 and 4 .
8. Adjust the value of RDRV with 3 and 6 for 86.5 ± 2 VDC.
86.5 ± 2 VDC
9. Reset the item DCOL to “1”
10. Reset GON and BON values to “1”.
R ON: ON
(1)
G ON: ON
(1)
B ON: ON
(1)
11. Reset PICTURE and COLOR to normal values.
12. To save into memory, press MUTING then ENTER .
21
KV-21FS105
KV-21FS105
V. Size Adjustment (VSIZ)
1. Input a crosshatch signal.
2. Activate the Service Adjustment Mode.
3. Select the VSIZ item with 1 and 4 .
4. Adjust value of VPOS with 1 and 4 for the best vertical center.
5. To save into memory, press MUTING then ENTER .
V. Center Adjustment (VPOS)
Perform this adjustment after performing H. Frequency (Free Run)
Check.
1. Input a crosshatch signal.
Check.
1. Input a crosshatch signal.
2. Activate the Service Adjustment Mode.
3. Select the VPOS item with 1 and 4 .
4. Adjust value of VPOS with 3 and 6 for the best vertical center.
5. To save into memory, press MUTING then ENTER .
H. Center Adjustment (HPOS)
Perform this adjustment after performing H. Frequency (Free Run)
Check.
1. Input a crosshatch signal.
Check.
1. Input a crosshatch 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. To save into memory, press MUTING then ENTER .
H. Size Adjustment (HSIZ)
1. Input a monoscope 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. To save into memory, press MUTING then ENTER .
V. Linearity (VLIN), V. Correction (VSCO),
Pin Amp (PAMP), and Horizontal Trapezoid
(TRAP) Adjustments
Pin Amp (PAMP), and Horizontal Trapezoid
(TRAP) Adjustments
1. Input a crosshatch signal.
2. Activate the Service Adjustment Mode.
3. Select VLIN, VSCO, PAMP, and TRAP with 1 and 4 .
4. Adjust with 3 and 6 for the best horizontal size.
5. To save into memory, press MUTING then ENTER .
V LINEARITY (VLIN)
V CORRECTION (VSCO)
PIN AMP (PAMP)
HORIZONTAL TRAPEZOID (TRAP)
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