DOWNLOAD Sony KV-HZ29N90 Service Manual ↓ Size: 7.9 MB | Pages: 127 in PDF or view online for FREE

Model
KV-HZ29N90
Pages
127
Size
7.9 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-hz29n90.pdf
Date

Sony KV-HZ29N90 Service Manual ▷ View online

– 53 –
KV-HZ29N90/HZ34M65/HZ34M85/HZ34M90/HZ34N90
RM-1013
RM-1008
RM-1008
RM-1008
RM1013
4-8-2. Convergence Adjustment
The adjusting ranges according to its position selected.
It is adjustable from the selected point to the center.
Left: Left to center
Upper: Upper to center
Upper left: Upper left to center
In case of 1 step inner from each edges: Marker position to center, it cannot be adjusting
  on the outside of the marker.
4-9. SFC FINE ADJUSTMENT
Landing: Left 11 points, right 11 points
Select R, G or B signal by pressing “6” on the remote commander.
In case of selecting VIDEO without input, a single color is
displayed.
Convergence: Move the marker from the center to outer spirally.
Only the center data is within +-15.
Fine mode
Landing
Convergence
4-9-1. Landing
Fine mode
Adjustable at each point.
Move DY.
Purity
All red or blue
– 54 –
KV-HZ29N90/HZ34M65/HZ34M85/HZ34M90/HZ34N90
RM-1013
RM-1008
RM-1008
RM-1008
RM1013
4-10.P & P SUB CONTRAST ADJUSTMENT
(VIDEO) (NTSC/PAL)
1. Receive the signal.
TV terminal (sub) : Color-bar (white-75%, No
   setup)
VIDEO terminal (main)  : Color-bar (white-75%, No
   setup)
2. VIDEO MODE
: AV Pro
PICTURE
: maximum
COLOR
: minimum
RGB Signal
: off
3. Set to P & P mode, and set to service mode.
4. Set the service data.
Category
Reg. No & Name
Standards
MCP
2 RON
1
3 GON
0
4 BON
0
7 YLMT
1
PIC
0 PIC
100
1 COL
0
5 PIOF
0
 5. Connect an oscilloscope between the check point and ground.
Check points
: CN9001 pin 
1 (R-DRV)
(C Board)
6. Adjust the item as shown below.
Category
Reg. No & Name
LEFT
CCPM
1
YLEV
RIGHT
YCTS
0
YLEV
7. Write the data into memory.
    
  MUTE     n    
  
0
<KV-HZ34M65/M85/M90 models>
        
  n  
    
0
<KV-HZ29N90/34N90 models>
4-11. P & P SUB-HUE AND SUB-COLOR
ADJUSTMENT (VIDEO) (NTSC/PAL)
1. Receive the signal.
TV terminal (sub) : Color-bar (white-75%, No
   setup)
VIDEO terminal (main) : Color-bar (white-75%, No
   setup)
2. VIDEO MODE
: AV Pro
PICTURE
: maximum
COLOR
: center
RGB Signal
: on
3. Set to P & P mode, set to service mode.
4. Set the service data.
Category
Reg. No & Name
Standards
MCP
2 RON
1
3 GON
1
4 BON
1
7 YLMT
1
PIC
0 PIC
60
1 COL
50
5. Connect an oscilloscope between pin  
5 (B-DRV)  of CN9001
(C board) connecter and ground.
6. Adjust the item as shown below to have VB1      VB4 and
VB2    VB3 in the waveform levels.
Category
Reg. No & Name
LEFT
CCPM
2
CLEV
3
SHUE
RIGHT
YCTS
1
CLEV
4
SHUE
7. Write the data into memory.
   
   MUTE     n      0
<KV-HZ34M65/M85/M90 models>
      n      0
<KV-HZ29N90/34N90 models>
VB1      VB2     VB3     VB4
<
=
<
=
4-9-2. Convergence
Fine mode
Adjustable at each point.
White
GND
VR1
VR1-VR2=VR=1.95   0.07Vp-p
VR2
sync tip
– 55 –
KV-HZ29N90/HZ34M65/HZ34M85/HZ34M90/HZ34N90
RM-1013
RM-1008
RM-1008
RM-1008
RM1013
4-12. WHITE BALANCE ADJUSTMENT
(1).VIDEO MODE : AV PRO
PICTURE : Maximum
COLOR
: Minimum
Color Temp.: High
DRC-MF
: Progressive
(2). Receive the all white signal and set to full mode screen and
to the service mode.
(3). Minimize the cut-offs and make drives normal in the follow-
ing items.
Category
Reg. No & Name
COLR
3 GDRV
4 BDRV
6 GCUT
7 BCUT
(4). Adjust with the cut-offs and the drives mutually the white
balance becomes best in the mode the picture is maximum or
minimum.
4-13. FOCUS ADJUSTMENT 2
Note
Focus adjustment should be completed before W/B adjustment.
(1) Receive digital monoscope pattern.
(2) Set DRC-MF to “Progressive” and PICTURE to “Standard”.
(3) Adjust FOCUS VR so that the center of the screen becomes
justfocus.
(4) Change the receiving signal to white pattern and blue back.
(5) Confirm MAGENTA RING should not be over the limit sam-
ple. In case MAGENTA RING is over the limit sample,
adjust FOCUS VR to take tracking of MAGENTA RING and
FOCUS.
FOCUS
SCREEN G2
FLYB ACK TRANSFORMER (T8001)
– 56 –
KV-HZ29N90/HZ34M65/HZ34M85/HZ34M90/HZ34N90
RM-1013
RM-1008
RM-1008
RM-1008
RM1013
SECTION 5
SAFETY RELATED ADJUSTMENTS
5-2. HV REGULATION CIRCUIT ADJUSTMENT
When replacing the f
ollowing components marked with 
 on the
schematic diagram always check HV regulation, and if neces-
sary re-adjust.
: RV8002
: IC8004, IC8005,
R8014, R8015, R8017
PH8003
T8001 (FBT)
D board
1. Connect a HV static voltmeter to the unconnected plug of the high-
voltage block.
2. Power on the set.
3. Receive the dot signal.
4. Set PIC MIN/BRT MIN.
5. Confirm that the static voltmeter reading is 31.5 
± 0.3kVDC.
6. If not, adjust with RV8002 to the specified value.
5-3. HV PROTECTOR CIRCUIT CHECK
When replacing the following components marked with 
 on
the schematic diagram always check hold-down voltage.
: RV8002
: D8014
IC8001
R8016, R8019, R8046, R8052, R8072,
R8078, R8079, R8165
T8001 (FBT)
D board
1. Connect a HV static voltmeter to the unconnected plug of the high-
voltage block.
2. Power on the set.
3. Receive the dot signal.
4. Set PIC MIN/BRT MIN.
5. The set turns off (the protector circuit activates) at the 36.6kVDC
or less reading on the static voltmeter.
6. After that, adjust the item 5-2 (Return to 31.5kVDC).
[ D BOARD]
5-1. +B MAX VOLTAGE CONFIRMATION
1. Supply 242 
±   VAC (Except Taiwan model) or 121 ±  VAC
(Taiwan model) to variable autotransformer.
2. Receive dot signal pattern and set the PICTURE and
BRIGHTNESS settings to their minimum.
3. Confirm the voltage between the both sides of C6512 on D
board  is 137.0 V dc.
5-4. IK PROTECTOR CIRCUIT CHECK (D BOARD)
When replacing the following components marked with / on the
schematic diagram, always check IK protector circuit.
:
D8004
IC8001
Q8007
R8027, R8030, R8035,R8037
R8038, R8039, R8040, R8041, R8043,
D board
1. Unsolder T8001 (FBT) Pin 1 and connect a DC current meter
between Pin 1 and the pattern.
2. Remove R0494 (MG MOUNT).
3. Feed the all white signal, increase the picture and brightness
slowly and check the hold-down works when the reading on
the DC current meter is 2670uA.
4. Turn power off.
5. Remove the DC current meter and set R0494 solder the
unsolder portions.
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