DOWNLOAD Sony KV-28CS70B Service Manual ↓ Size: 45.39 MB | Pages: 76 in PDF or view online for FREE

Model
KV-28CS70B
Pages
76
Size
45.39 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-28cs70b.pdf
Date

Sony KV-28CS70B Service Manual ▷ View online

- 3 -
CAUTION
Lead Free Soldered Boards
The circuit boards listed below [Table 1] used in these models
may have been processed using Lead Free Solder. The boards are
identified by the LF logo located close to the board designation
e.g. F1, H1 etc [ see examples ]. The servicing of these boards
requires special precautions to be taken as outlined below.
Table 1
example 1
example 2
It is strongly recommended to use Lead Free Solder material in order to guarantee optimal quality of new solder joints. Lead Free Solder is
available under the following part numbers :
Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees centigrade. This
requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.
For more information on the use of Lead Free Solder, please refer to  http://www.sony-training.com
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- 5 -
Connected
Not Connected (open)    * at 20Hz - 20kHz
Pin No
1
2
4
Signal
Signal level
1
Audio output B
(right)
Standard level : 0.5V rms
Output impedence : Less than 1kohm*
2
Audio input B
(right)
Standard level : 0.5V rms
Output impedence : More than 10kohm*
3
Audio output A
(left)
Standard level : 0.5V rms
Output impedence : Less than 1kohm*
4
Ground (audio)
5
Ground (blue)
6
Audio input A
(left)
Standard level : 0.5V rms
Output impedence : More than 10kohm*
7
Blue input
0.7 +/- 3dB, 75 ohms positive
8
Function select
(AV control)
High state (9.5-12V) : Part mode 
Low state (0-2V) : TV mode
Input impedence : More than 10K ohms
Input capacitance : Less than 2nF
9
Ground (green)
10
Open
11
Green
Green signal : 0.7 +/- 3dB, 75 ohms, 
positive
12
Open
13
Ground (red)
14
Ground (blanking)
15
_
_
Red input
0.7 +/- 3dB, 75 ohms, positive
_
(S signal Chroma 
input)
0.3 +/- 3dB, 75 ohms, positive
16
Blanking input
(Ys signal)
High state (1-3V) Low state (0-0.4V)
Input impedence : 75 ohms
17
Ground (video 
output)
18
Ground (video 
input)
19
Video output
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
20
_
_
Video input
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
_
Video input
Y (S signal)
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
21
Common ground
(plug, shield)
21 pin connector
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21
Rear Connection Panel
Side Connection Panel
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6
1
AE-6B SELF DIAGNOSTIC SOFTWARE
The identification of errors within the AE-6B chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the
event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a continuous
flashing LED) and then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant
device number will be displayed through the LED (Series of flashes which must be counted) See table 1, non fatal errors are reported using this
method.
Each time the software detects an error it is stored within the NVM. See Table 2.
Table 1
How to enter into Table 2
Table 2
Note: To clear the error count data press ‘80’ on the Remote
            commander.
Flash Timing Example : e.g. error number 3
StBy LED
ON
ON
ON
OFF
OFF
‘TT—’ will appear in the upper right corner of the screen.
Other status information will also be displayed.
3.
Press ‘MENU’ on the remote commander to obtain the
Service menu on the screen.
4.
Using the Remote Commander, Scroll to the  ‘Error Menu’
item using the down arrow key, then press the right arrow
key.
5.
The following table will be displayed indicating the error
count.
i+
5
+
(ON SCREEN                            (DIGIT 5)                                (VOLUME +)                                  (TV)
   DISPLAY)
1.
Turn on the main power switch and enter into the stand-by
mode.
2.
Press the following sequence of buttons on the Remote
Commander.
Page of 76
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Sony KV-28CS70B Service Manual ▷ Download

  • DOWNLOAD Sony KV-28CS70B Service Manual ↓ Size: 45.39 MB | Pages: 76 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony KV-28CS70B in PDF for free, which will help you to disassemble, recover, fix and repair Sony KV-28CS70B TV. Information contained in Sony KV-28CS70B 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.