Sony KV-AR25M80A Service Manual ▷ View online
– 21 –
KV-AR25M80A
RM-952
3-5. H-TRAPEZOID ADJUSTMENT
1.
Receive cross hatch/dot signal.
2.
Adjust RV1801 on C6 board to make H-Trapezoid distortion
best.
best.
3-6. A BOARD ADJUSTMENT AFTER IC003
(MEMORY) REPLACEMENT
1.
Enter to Service Mode.
2.
Press commander buttons 5 and - (Data Initialize), and
2 and - (Data Copy) to initialize the data.
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 “OPB00” (OP1), “OPB01” (OP2), "OPB
02" (OP3) and "OPB 03" (OP4) respectively set the bit per
model with command buttons 3 and 6.
02" (OP3) and "OPB 03" (OP4) 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.
to the data that was set on the shipment from the factory.
(This will also cancel Service Mode.)
NORMAL MODE (60Hz)
11. Input 525/60 Hz signal.
12. Using the 1 and 4 buttons select category GEO (Service
12. Using the 1 and 4 buttons select category GEO (Service
Mode).
13. Select and adjust the following items to obtain obtimum image.
Raise/lower the data with the 3 and 6 buttons.
Service Item
GEO : 00
HPS
H POSITION
01
HSZ
H SIZE
02
PAP
PIN AMP
03
TLT
TILT
04
VPS
V POSITION
05
VSZ
V SIZE
06
SCO
S CORRECTION
07
VLN
V LINEARITY
08
BOW AFC BOW
09
AGL
AFC ANGLE
0A
UPN
UPPER CORNER PIN
0B
LPN
LOWER CORNER PIN
WIDE MODE (60Hz)
14. Input NTSC Color Bar
15. Adjust condition change to WIDE MODE: ON.
16. Using the 1 and 4 button select category GEO (Service
15. Adjust condition change to WIDE MODE: ON.
16. Using the 1 and 4 button select category GEO (Service
Mode).
17. Copy (item from NORMAL MODE (60Hz)) adjusted data for
the following items:
Service Item
GEO : 01
HSZ
H SIZE
05
VSZ
V SIZE
06
SCO
S CORRECTION
07
VLN
V LINEARITY
18. Raise/lower the data with the 3 and 6 buttons. Select and
adjust the following items to obtain optimum image.
Service Item
GEO : 00
HPS
H POSITION
02
PAP
PIN AMP
03
TLT
TILT
04
VPS
V POSITION
08
BOW AFC BOW
09
AGL
AFC ANGLE
0A
UPN
UPPER CORNER PIN
0B
LPN
LOWER CORNER PIN
19. After confirm WIDE MODE : ON – OFF.
– 22 –
KV-AR25M80A
RM-952
3-7. PICTURE DISTORTION ADJUSTMENT (1)
Item Number 00 – 0B
PICTURE DISTORTION ADJUSTMENT (2)
GEO 1
HSZ ( H SIZE)
GEO 3
TLT (TRAPEZIUM)
GEO 0A
GEO 0B
GEO 5
GEO 0
HPS (H POSITION)
GEO 9
UPN (UPPER CORNER PIN)
LPN (LOWER CORNER PIN)
AGL (AFC. ANGLE)
GEO 8
GEO 2
PAP (PIN AMP)
GEO 4
VPS (V POSITION)
GEO 7
GEO 6
VSZ (V SIZE)
BOW (AFC. BOW)
VLN (V LINEARITY)
SCO (VERTICAL S-Correction)
H-TRAPEZOID (ROTATE RVI801)
– 24 –
– 23 –
KV-AR25M80A
RM-952
KV-AR25M80A
RM-952
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM
MAIN. TUVIF
<slave: 90H>
<slave: 90H>
TU101
BTF-LG433
BTF-LG433
<slave:C0H>
YC JUNGLE
IC301
CXA2159S
CXA2159S
<slave:88H>
MONITOR
OUT
OUT
TV V in
TV L in
TV R in
TV Y in
V I Y in
V 2 Y in
46
43
4
40
41
V1 Y in
V1 L in
V1 R in
V3 Y in
V3 L in
V2 Y in
V2 L in
V2 R in
V3 R in
L out 2
R out 2
JACK BLOCK
J7402
PIN 9P
PIN 9P
VIDEO IN 1
VIDEO IN 2
VIDEO IN 3
(FRONT)
(FRONT)
AUDIO
PROSESSOR
PROSESSOR
IC7203
TDA7429S
TDA7429S
<slave: 90H>
AUDIO OUT
IC201
TA8223K
TA8223K
RED OUT
GREEN OUT
BLUE OUT
VIDEO AUP
Q701-712
Q701-712
IC1800
LA6510
LA6510
H1
SP ASSY
R out
CRT SOCKET
G out
CRT
A60LPN70X
A60LPN70X
NECK ASSY
DY
Y25RSA
Y25RSA
B out
R out
V out
U out
Y
out
Y i
n
U in
V in
VM out
G out
B out
24
25
26
23
21
20
13
15
16
IK in
H. DRIVE
H. PULSE
E/W
VD+
VD-
VM DRIVE
Q5902/5906
Q5902/5906
H-OUT
Q511
2SD2578
Q511
2SD2578
V-OUT
IC503
TDA8172
IC503
TDA8172
HDT
T501
T501
H-DRIVE
Q506
2SC2785
Q506
2SC2785
PIN-CONT
IC502
NJM2903M
IC502
NJM2903M
PIN-OUT
Q505
IRF614
Q505
IRF614
PMT
T505
T505
HLT
T504
T504
FBT
T503
NX-4009
T503
NX-4009
+B
Audio Front Vcc
+9V
11V
7V
+5V
5V REG & RESET
IC002 MM1319AFBE
9V REC IC603
5V REC IC604
STB TRANS
T604
STB SW TR
Q605
2SK2845
2SK2845
SRT
T603
POWER
IC601
STR-F6656
STR-F6656
LINE FILTER
T601
THP
THP600
DGC
Additional
Color Matrix
Color Matrix
SYSTEM
u
com
IC001
CXP86461
CXP86461
RECEIVER
SBX3081-21
IC3901
IC3901
H2
SIRCS
B G R
BLK
I2L
MEMORY
IC003
M24C08
M24C08
41 40 39
34 33 32
17
28 29 30 31
R out
L out
AUDIO MIXER
IC7204 UPC4558G2
Q7310
CASIO
MIXER
CASIO
MIXER
PNC
& ADC
& ADC
A
VM1
C6
B9
LINE
FILTER
FILTER
T7601
T7602
T7602
AC CORD
(CISPR, AC fuse, A/V Input,
DVD Switch, Monitor Out)
DVD Switch, Monitor Out)
B9
J3903 3P
IC7501
SWITCH
SWITCH
J
V
U
L
R
(DVD
TERMINAL)
TERMINAL)
(CISPR, AC fuse, A/V Input,
DVD Switch, Monitor Out)
DVD Switch, Monitor Out)
(System Controller, Y/C Jungle, Deflection, Tuvif, Front Amp, Power Supply)
(Front AV IN, Key SW)
(Velocity
Modulation)
Modulation)
(Video Amp, Picture Rotation)
(Receiver Power
SW LED front
AV IN, KEY SW)
SW LED front
AV IN, KEY SW)
– 25 –
KV-AR25M80A
RM-952
4-2. CIRCUIT BOARDS LOCATION
VM1
A
B9
H2
H1
C6
J
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