Sony KV-PG14N70 (serv.man2) Service Manual ▷ View online
– 21 –
KV-PG14N70
RM-915
4-3. PICTURE QUALITY ADJUSTMENT
SUB COLOR ADJUSTMENT
1. Select Video.
2. Input a PAL color-bar.
3. Set to the following condition:
2. Input a PAL color-bar.
3. Set to the following condition:
PICTURE 100%, BRIGHTNESS 50%, COLOR 50%
4. Connect an oscilloscope to pin 1 (B OUT) of CN300, A board.
5. Set to Service Mode and select 13 ‘SC1’ with 1 and 4 of
5. Set to Service Mode and select 13 ‘SC1’ with 1 and 4 of
the commander then adjust to VB2=VB3=VB4 with 3 and
6.
6.
6. Press
[MUTING]
→ - of the commander to write the data.
7. Adjust 13 ‘SC1’ as step 2 to 5 when receiving NTSC
color-bar.
SUB HUE ADJUSTMENT
1. Select Video.
2. Input a NTSC 3.58, color-bar into Video/TV mode.
3. Set the following condition:
2. Input a NTSC 3.58, color-bar into Video/TV mode.
3. Set the following condition:
PICTURE 100%, BRIGHTNESS 50%, COLOR 50%
4. Connect an oscilloscope to pin 1 (B OUT) of CN300, A
board.
5. Select 11"SHU" with 1 and 4 of the commander by setting
to Service Mode and adjust to VB1=VB2=VB3=VB4 with 3
and 6 .
and 6 .
The highest level of VB1,VB2,VB3,VB4 must be aligned at
the same line. Ideal difference level between VB2 and VB3
should be within ± 110mV.
the same line. Ideal difference level between VB2 and VB3
should be within ± 110mV.
6. Press
[MUTING]
→ - of the commander to write the data.
7. Select TV channel with NTSC 3.58 and repeat 3 to 5.
8. Press
8. Press
[MUTING]
→ - of the commander to write the data.
9. Single system model with NTSC 4.43, select TV channel with
NTSC 4.43 and repeat 3 to 5.
VB1
VB2
VB3
VB4
VB2 = VB3 = VB4
VB2 = VB3 = VB4 (Difference is within 70mV)
VB1
VB2
VB3
VB4
VB1 = VB2 = VB3 = VB4
4-4. DEFLECTION ADJUSTMENT
NORMAL MODE (50Hz)
1.
Set to Service mode.
2.
Input PAL color bar.
3.
Using the 1 and 4 button, select category GEO
(Service Mode).
(Service Mode).
4.
Raise/lower the data using the 3 and 6 buttons.
Select and adjust the following items to obtain optimum
image.
Select and adjust the following items to obtain optimum
image.
Service Item
GEO : 00
HPS
H SHIFT
01
HSZ
H SIZE
02
PAP
PIN AMPLITUDE
03
CPN
CORNER PIN
04
TLT
TILT
05
VSL
V SLOPE
06
VAP
VERTICAL AMPLITUDE
07
SCO
S CORRECTION
08
VPS
V SHIFT
NORMAL MODE (60Hz)
5. Input 525/60Hz signal.
6. Using the 1 and 4 buttons select category GEO (Service
5. Input 525/60Hz signal.
6. Using the 1 and 4 buttons select category GEO (Service
Mode).
7. Select and adjust the following items to obtain obtimum
image.
Raise/lower the data with the 3 and 6 buttons.
Raise/lower the data with the 3 and 6 buttons.
Service Item
GEO : 00
HPS
H SHIFT
01
HSZ
H SIZE
02
PAP
PIN AMPLITUDE
03
CPN
CORNER PIN
04
TLT
TILT
05
VSL
V SLOPE
06
VAP
VERTICAL AMPLITUDE
07
SCO
S CORRECTION
08
VPS
V SHIFT
4-5. A BOARD ADJUSTMENT AFTER IC003
(MEMORY) REPLACEMENT
1.
Enter to Service Mode.
2.
Press commander buttons 5 and -P (Data Initialize),
and 2 and - (Data Copy) to initialize the data.
and 2 and - (Data Copy) to initialize the data.
3.
Call each item number and check if the respective screen
shows the normal picture.
In cases where items are not well adjusted, rectify the fine
adjustment.
Write the data per each item number (
shows the normal picture.
In cases where items are not well adjusted, rectify the fine
adjustment.
Write the data per each item number (
[MUTING]
+-).
4.
Select item numbers 32 ‘OP1’, 33 ‘OP2’, 34 ‘OP3’ and
respectively set the bit per model with command buttons
3 and 6 .
respectively set the bit per model with command buttons
3 and 6 .
5.
Press commander buttons 8 and - (Test Normal) to return
to the data that was set on the shipment from the factory.
(This will also cancel Service Mode.)
to the data that was set on the shipment from the factory.
(This will also cancel Service Mode.)
– 22 –
KV-PG14N70
RM-915
4-6. PICTURE DISTORTION ADJUSTMENT
Item Number 00 – 08
01
HSZ (H SIZE)
04
TLT (TILT)
06
VAP (VERTICAL AMPLITUDE)
00
HPS (H SHIFT)
02
PAP (PIN AMPLITUDE)
03
CPN (CORNER PIN)
05
VSL (V SLOPE)
08
VPS (V SHIFT)
07
SCO (S CORRECTION)
– 24 –
– 23 –
KV-PG14N70
RM-915
KV-PG14N70
RM-915
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM
59
60
38
41
40
36
35
34
3
6
56
54
12
L/H
U/V
VC
KEY1
KEY2
RESET
EXTAL
XTAL
TIMER
RESP/
IICLK0
IIDAT0
BLK
NICAM
VC AMP
Q105
Q106
VC FILTER
Q100
BUFFER
AGC
N/C SCL SDA
50
42
47
25
55
53
26
3
4
17
48
27
G
BRT ABL
HSYNC
HSYNC
IICLK1
IIDAT1
SIRCS
I
M
VPULSE
VSYNC
HDSW
IC001
Q315
G BUFFER
5
6
IC003 MEMORY
1
2
IC004 IR DET
+5V
S006
5
4
IC002 +5V REG
1
+9V
+5V
X101
Q001
LED
DRIVE
DRIVE
LED
Q002
+5V
TIMER
D001
SWF100
Q102
IF BUFFER
IF
TU100 TUNER
L OUT
L IN
7
5
IC203
AUDIO OUT
Q405
BUFFER
L MUTE
Q401
VIDEO
L (MONO)
J1201
CN200
SP
J200
EARPHONE
MONITOR
OUT
A
POWER SUPPLY, DEFLECTION,
AUDIO & VIDEO PROCESSING,
AUDIO/VIDEO INPUT/OUTPUT
AND MICROCOMPUTER
AUDIO & VIDEO PROCESSING,
AUDIO/VIDEO INPUT/OUTPUT
AND MICROCOMPUTER
18
19
20
21
48
49
54
41
34
35
26
IF IN
IF IN
AGC
SSCP/FBT
3.58
4.43/3.58
BLK
SCL
7
8 SDA
30
29
38
39
31
32
22
50
B-Y
R-Y
CVBS OUT
BLK/STC
B-Y
R-Y
ABL
EHTX-RAY
IC301
Y/C JUNGLE
X443
4.43MHz
X358
3.58MHz
IF OUT
SIF IN
6
1
H PROT
Q004
Q800
H DRIVE
3
1
PIN CONTROL
IC850,851
Q802
PIN OUT
1
7
IC551 V OUT
5
Q801
H OUT
L802
DUMPER
D804, 851
S800
H SENT
FV
HV
+135V
–13V
+15V
T503
Q500
X RAY
+135V
D561
D591
H+
H+
H–
H–
V–
V+
DY1
1
5
200V
H1
CN500
CN300
CN703
6
5
4
1
Q712
Q711
Q710
Q706
Q705
Q704
R DRIVE
G DRIVE
B DRIVE
R AMP
G AMP
B AMP
Q709
Q708
Q707
IK LIMIT
IK LIMIT
IK LIMIT
R
G
B
IK
12
11
10
5
J702
1 8
1
5
200V
H1
CN701
G2
RV702
C (RGB OUTPUT)
T601 SRT
+18V
+11V
+B
D60
S600 POWER
1
2
DRIVE
LATCH
OVP
OSC
9
8
6
7
2
1
3
4
PH600 PHOTO COUPLER
1
2
IC602 ERROR AMP
IC601 REG SW
CN601
HDY
VDY
H+
H–
V+
V–
DY ASS'Y
IK
B
G
R
DSPMUTE
MOMUTE
11
40
45
46
47
HOR OUT
EAST/WEST
VERT POS
VERT NEG
R
G
B
IK
2
4
1
7
9
10
5
6
11
13
17
16
15
14
13
11
2
3
4
5
8
7
T600
1
2
T801
H2
CRT
A34LRG70X
6
5
7
Q407, 406
VIDEO
L (MONO)
IN 1
VIDEO
(FRONT)
(REAR)
VIDEO
IN 1
L (MONO)
VIDEO
11 CVBS IN EXT
3
5
7
IC400
IC402
17 LUMA IN
BUFFER
CLK
DAT
IN
OUT
RESET
55 DE
FILTER
SYNC
Q311, 313
M SW
B/G SW
Q309, 312
13
CVBS IN INT
Q318, Q201
BUFFER
AUDIO SW
SYSTEM CONTROLLER
CN4602
T4602
T4601
F4601
AC IN
F (CISPR)
1
2
CH +
CH -
S003
VOL -
S005
VOL +
S001
TV/VIDEO
S004
S002
SEL
1
3
CN602
DGC
1
2
4
3
6
5
16
56 V PULSE
8
MUTE
AUDIO OUT
15
D/K
B/G
2
1
LUMA IN 27
28
LUMA OUT
+9V
REG
+9V
IC604
(Not used for this model)
– 25 –
KV-PG14N70
RM-915
5-2. CIRCUIT BOARDS LOCATION
A BOARD
C BOARD
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