DOWNLOAD Sony KV-HA21M80 (serv.man3) Service Manual ↓ Size: 2.75 MB | Pages: 47 in PDF or view online for FREE

Model
KV-HA21M80 (serv.man3)
Pages
47
Size
2.75 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-ha21m80-sm3.pdf
Date

Sony KV-HA21M80 (serv.man3) Service Manual ▷ View online

– 4 –
KV-HA21M80
RM-969
The units in this manual contain a self-diagnosis function. If an error occurs, the STANDBY (1) indicator will automati-
cally begin to flash. A description of the self-diagnosis function is explained in the instruction manual.
The number of times the STANDBY (1) indicator flashes translates to a probable source of the problem. If an error
symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in
memory to reveal past problems and how often these problems occur.
1. DIAGNOSIS TEST INDICATORS
When an errors occurs, the STANDBY (1) indicator will flash a set number of times to indicate the possible cause of the
problem. If there is more than one error, the indicator will identify the first of the problem areas.
Result for all of the following diagnosis items are displayed on screen. No error has occured if the screen displays a “0”.
Diagnosis
Item
Description
• Power does not
turn on
• +B overcurrent
(OCP)
• Horizontal
deflection
overdrive
• White balance
failure (no
PICTURE)
• Vertical deflection
stopped
• Micro reset
Detected
Symptoms
• Power does not come on.
• No power is supplied to
the TV.
• AC power supply is faulty.
• Power does not come on.
• Load on power line is
shorted.
• Has entered standby state
after horizontal raster.
• Power line is shorted or
power supply is stopped.
• Vertical deflection pulse
 is stopped
• Power is shut down
shortly, after this return
back to normal.
• Detect Micro latch up.
Note 1: If a + B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously.
The symptom that is diagnosed first by the microcontroller is displayed on the screen.
Note 2: Refer to screen (G2) Adjustment in section 3-4 of this manual.
SELF DIAGNOSIS FUNCTION
No. of times
STANDBY (1)
indicator flashes
Does not light
2 times
4 times
Self-diagnostic
display/Diagnosis
result
002:000 or
002:001~255
004:000 or
004:001~225
101:00 or
101:001~225
Probable
Cause
Location
• Power cord is not
plugged in.
• Fuse is burned out
F600 (F)
• H.OUT Q801 is shorted.
(A board)
• -13V is not supplied.
(A board)
• IC 551 faulty (A board)
• Discharge CRT
(C Board)
• Static discharge
• External noise
– 5 –
KV-HA21M80
RM-969
2. DISPLAY OF STANDBY (1) INDICATOR FLASH COUNT
3. STOPPING THE STANDBY (1) INDICATOR FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY (1)
indicator from flashing.
4. SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be con-
firmed, it is possible to bring up past occurances of failure for confirmation on the screen:
[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
[Screen display] / channel [5] / Sound volume [-] / Power ON
˘
                  Note that this differs from entering the service mode (volume [+]).
Self-Diagnostic screen display
STANDBY (1) indicator
Lamp ON 0.3 sec.
Lamp OFF 3 sec.
Lamp OFF 0.3 sec.
2 times
4 times
Diagnosis Item
Flash Count*
+B overcurrent/overvoltage
2 times
Vertical deflection stopped
4 times
* One flash count is not used for self-diagnosis.
002 : 000
004 : 000
Numeral "0" means that no fault has been detected.
101 : 000
SELF DIAGNOSTIC
– 6 –
KV-HA21M80
RM-969
5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY
Since the diagnosis results displayed on the screen are not automatically cleared, always check the self-diagnostic
screen during repairs. When you have completed the repairs, clear the result display to “0”.
Unless the result display is cleared to “0”, the self-diagnosis function will not be able to detect subsequent faults after
completion of the repairs.
[Clearing the result display]
To clear the result display to “0”, press buttons on the remote commander sequentially as shown below when the self-
diagnostic screen is being displayed.
Channel [8]
/ 0
[Quitting Self-diagnostic screen]
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
6. SELF-DIAGNOSIS CIRCUIT
[+B overcurrent  OCP ]
Occurs when an overcurrent on the +B(135) line is detected by Q500. If Q500 go to
ON and the voltage to pin 50 of IC301 more than 3.5V when V.SYNC is more than
seven verticals in a period, the unit will automatically turn off.
[Vertical deflection stopped]
Occurs when an absence of the vertical deflection pulse is detected by Pin 17 and
IC001 shut down the power supply.
[White balance failure]
If the RGB levels* do not balance or become low level within 5 seconds, this error
will be detected by IC301. TV will stay on, but there will be no picture.
* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)
IC301
Y/CHROMA JUNGLE
IC001
SYSTEM
IC003
MEMORY
MP/
PROTECT
11 DAT1
DAT
11 DAT0
5
50
54
SDA
8
FROM
[+B] Q500
17
[V] 
D553
53
– 7 –
KV-HA21M80
RM-969
A
Getting Started
Plug in the power cord, then press ! on the TV to
turn it on.
Press SELECT and PROGR + on the TV at the same time
for one to two seconds to preset the channels
automatically.  (See J)
Tip
• To stop the automatic channel presetting, press SELECT.
b
PROGR
SELECT
b
SELECT
Press SELECT on the remote until “LANGUAGE/
:
ENGLISH” appears on the screen, then press + or – to
change the on-screen display language.
Connect the antenna cable (not supplied) to 8
(antenna input) at the rear of the TV.
Tip
• You can also connect your TV to other optional components.
(See E)
Step 1
Insert the batteries (supplied) into the remote.
Note
• Do not use old batteries nor use different types of batteries
together.
Step 2
Step 3
Step 4
Step 5
B
WARNING
• Dangerously high voltages are present inside the TV.
• TV operating voltage: 110 – 240 V AC.
• Do not plug in the power cord until you have completed making all other connections;
otherwise a minimum leakage current might flow through the antenna and other terminals to
ground.
• To avoid battery leakage and damage to the remote, remove the batteries from the remote if
you are not going to use it for several days.  If any liquid that leaks from the batteries touches
you, immediately wash it away with water.
To prevent fire or shock hazard, do not expose
the TV to rain or moisture.
Do not operate the TV if any liquid or solid object
falls into it.  Have it checked immediately by
qualified personnel only.
Do not open the cabinet and the rear cover of the
TV as high voltages and other hazards are
present inside the TV.  Refer servicing and
disposal of the TV to qualified personnel.
Your TV is recommended for home use only.
Do not use the TV in any vehicle or where it may
be subject to excessive dust, heat, moisture or
vibrations.
For children’s safety, do not leave children alone
with the TV.  Do not allow children to climb onto
it.
Clean the TV with a dry and soft cloth.  Do not use
benzine, thinner, or any other chemicals to clean
the TV.  Do not scratch the picture tube.
For your own safety, do not touch any part of the
TV, the power cord and the antenna cable during
lightning storms.
Do not block the ventilation openings of the TV.
Do not install the TV in a confined space, such
as a bookcase or built-in cabinet.
Install the TV on a stable TV stand and floor which
can support the TV set weight. Ensure that the TV
stand surface is flat and its area is larger than the
bottom area of the TV.
Do not place any objects on the TV.
C
Securing the TV
KV-HA21 only
To prevent the TV from falling, use the supplied screws, clamps and band to secure the TV.
Screw the band to the TV stand and to the
provided hole at the rear of your TV.
(1) Put a cord or chain through the
clamps.
(2) Screw one clamp to a wall or pillar
and the other clamp to the provided
hole at the rear of your TV.
Note
• Use only the supplied screws.  Use of other screws may damage the TV.
20 mm
3.8 mm
screws
clamps                          band
or
Do not plug in too many appliances to the same
power socket.  Do not damage the power cord.
Pull the power cord out by the plug.  Do not pull
the power cord itself.  Even if your TV is turned
off, it is still connected to the AC power source
(mains) as long as the power cord is plugged in.
Unplug the TV before moving it or if you are not
going to use it for several days.
WARNING (continued)
SECTION 1
GENERAL
The operating instruction mentioned here are partial abstracts
from the Operating Instruction Manual. The page numbers of
the Operating Instruction Manual remain as in the manual.
D
TV front and rear panels
!
!
PROGR
SELECT
(MONO)
L
R
L(MONO)
R
6
1
3
7
2
5
8
4
9
qa
qs
0
TV front panel
TV rear panel
Button
Function
1
!
Turn off or turn on the TV.
2
Remote control sensor.
3
1
Standby indicator.
3
Wake Up indicator.
4
PROGR +/–
Select program number.
5
2
 +/– *
Adjust volume.
6
t
Select TV or video input.
7
SELECT
Select the desired item.
8
i
Headphone terminal.
9
qa
t
Video input terminal.
0
8
Antenna input terminal.
qs
T
Monitor output terminal.
* You can also use the 2 +/– buttons on the TV to work as the +/– buttons on the remote.
Page of 47
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Sony KV-HA21M80 (serv.man3) Service Manual ▷ Download

  • DOWNLOAD Sony KV-HA21M80 (serv.man3) Service Manual ↓ Size: 2.75 MB | Pages: 47 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony KV-HA21M80 (serv.man3) in PDF for free, which will help you to disassemble, recover, fix and repair Sony KV-HA21M80 (serv.man3) TV. Information contained in Sony KV-HA21M80 (serv.man3) 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.