DOWNLOAD Sony KV-SW212M50 Service Manual ↓ Size: 7.52 MB | Pages: 90 in PDF or view online for FREE

Model
KV-SW212M50
Pages
90
Size
7.52 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-sw212m50.pdf
Date

Sony KV-SW212M50 Service Manual ▷ View online

– 4 –
KV-SW212M50/M81/M83/M83/H/N60/P50
   RM-GA002
[+B overcurrent $OCP%]
Occurs when an overcurrent on the +B(135V) line is detected by pin 32 of IC001 (A board).
If the voltage of pin 32 of IC001 (A board) is more than 4V, the unit will automatically go to
standby.
[V-PROTECT]
Occurs when an absence of the vertical deflection pulse is detected by pin 13 of IC001
(A board).
[IK $AKB%]
If the RGB levels* do not balance within 15 sec after the power is turned on, this error will be
detected by IC001 (A board). TV will stay on, but there will be 5 times LED blinking.
Occurs when IC001 internal HV protect detects an abnormal H-Pulse (frequency) due to
improper power supply to IC001. TV cuts off high voltage power of anode CRT. No picture will be
detected. eg: IC602, IC604 go faulty.
* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)
A BOARD
IC001
Y/CHROMA JUNGLE
A BOARD
IC804
V.OUT
A BOARD
IC001
SYSTEM
A BOARD
IC003
MEMORY
FROM
C BOARD
IC751 PIN 5
IK
EHTO
RED LED
DISPLAY
SDA1
V.GUARD
SDA
5
F.B-PLS
3
13
84
32
122
A BOARD
FROM
Q816
COLLECTOR
99
POWER SUPPLY NG (+5V)
for VIDEO PROCESSOR
4. SELF DIAGNOSTIC SCREEN DISPLAY
5. HANDLING SELF DIAGNOSTIC SCREEN DISPLAY
6. SELF-DIAGNOSTIC CIRCUIT
2 OCP
: 0
3 OVP
: N/A
4 VSTOP : 1
5 AKB
: 0
8 SVP
: 0
101 WDT : N/A
"0" means no fault has been detected.
"1" means a fault has been detected.
"N/A" means not available for this models.
SELF DIAGNOSTIC
5
8
No.
Description
Method
1.
Display self diagnostic screen
[Display] t [Channel    ] t [Volume    ] t [Power / TV]
Note: The above must be performed while TV is on standby mode.
2.
Stop standby flash
i) Turn off power switch on main.
ii) Unplug power cord from the outlet.
3.
Clear fault result
In self diagnostic screen,press
[Channel    ] t 
-
Note: Diagnostic results display on screen is not automatically cleared. Therefore,
clear result after completion of repair.
4.
Quit self diagnostic screen
Turn off power switch of remote commander or main unit.
– 5 –
KV-SW212M50/M81/M83/M83/H/N60/P50
   RM-GA002
SECTION 1
DISASSEMBLY
1-3.
SPEAKER REMO VAL
1-5.
SERVICE POSITION
1-4.
 CHASSIS ASSY REMO VAL
1-1.
3D BOX REMO VAL (KV-SW212M83/M83/H)
Two screws
     (Washer Head) 
     (+P4 x16)
Terminal bracket
One screw
(+
BVTP
 
3
 
× 
12
)
2  
One screw
     (
+BVTP
 
4
 
×
 
16
)
4  
Two screws
     (
+BVTP
 
3
 
× 
12
)
5  
J Board
(
only for model
KV-SW212M83/M83/H)
)
1-2.
REAR COVER REMO VAL
1  
Eight screws
     (+BVTP 4 
× 16)
Rear cover
3D Speaker box assy
Rear cover
1-6.
TERMINAL BRACKET AND J BOARD
REMOVAL
– 6 –
KV-SW212M50/M81/M83/M83/H/N60/P50
   RM-GA002
1-8.
PICTURE TUBE REMOVAL
Note:
• Please make sure the TV set is not in standing position before removing necessary CRT support located on bottom right
and left.
1) Remove the Rear Cover.
2) Unplug all interconnecting leads from the Deflection Yoke, Neck Assy, Degaussing Coils and CRT grounding strap. Remove
Chassis Assy.
3) Place the TV set with the CRT face down on a cushion (jig).
qs
Screw, Tapping 5 + Crown Washer (x4) 
4
 
Anode Cap Removal
9
 
Degaussing Coil
6
 
Loosen the Neck Assembly 
fixing screw and remove
Neck Assy & VM board
7
Loosen the Deflection Yoke
fixing screw and remove
5
 
C Board Removal
qa
 
Spring Tension
Removal (x2)
8
 
Holder, DGC
Removal (x2)
0
 
Earth Coating Assy
1-7.
A BOARD REMOVAL
A Board
– 7 –
KV-SW212M50/M81/M83/M83/H/N60/P50
   RM-GA002
• REMO VAL OF ANODE-CAP
Note:
• After removing the anode, short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or
carbon paint on the CRT.
• REMOVING PROCEDURES
Turn up one side of the rubber cap in the direction
indicated by the arrow a.
Using a thumb pull up the rubber cap firmly in the direction
indicated by the arrow b.
When one side of the rubber cap is separated from the
anode button,  the anode-cap can be removed by turning
up the rubber cap and pulling it up in the direction of the
arrow 
c.
• HOW TO HANDLE AN ANODE-CAP
Do not damage the surface of anode-caps with sharp
shaped objects.
Do not press the rubber too hard so as not to damage
the inside of anode-cap.
A metal fitting called the shatter-hook terminal is built
into the rubber.
Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage the
rubber.
A
A
B
B
C
 Anode Button
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Sony KV-SW212M50 Service Manual ▷ Download

  • DOWNLOAD Sony KV-SW212M50 Service Manual ↓ Size: 7.52 MB | Pages: 90 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony KV-SW212M50 in PDF for free, which will help you to disassemble, recover, fix and repair Sony KV-SW212M50 TV. Information contained in Sony KV-SW212M50 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.