DOWNLOAD Sony KE-42M1 Service Manual ↓ Size: 9.5 MB | Pages: 90 in PDF or view online for FREE

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER LED will automatically begin to fl ash. The number 
of times the LED fl ashes translates to a probable source of the problem. A defi nition of the STANDBY/TIMER LED fl ash indicators is listed in the 
instruction manual for the user’s knowledge and reference. 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.

Diagnostic Test Indicators
When an error occurs, the STANDBY/TIMER LED will fl ash a set number of times to indicate the possible cause of the problem. If there is more than 
one error, the LED will identify the fi rst of the problem areas.

 

Front Panel Control Button
(1)fi INPUT

(2)fi Volumefi-

(3)fi Volumefi+

(4)fi Channelfi-

(5)fi Channelfi+

LED Indicator
(1)fi TimerfiLED

(2)fi PicturefiOfffiLED

(3)fi PowerfiLED

Control Button
(1)fi Powerfi(|)

LED Display
This model displays Power Supply Lamp in Green and Standby/Off-Timer Lamp in Red. Use the following tables to determine the status of the monitor.

Green On 

Off 

Off 

Microprocessor is in normal working 

mode. 

Red On 

Off 

Off 

Microprocessor is in sleeping mode. 

Green Blink 

Off 

Off 

 

Green On 

Red On 

Off 

 

Red Blink 

Off 

Off 

Causes of the failures are classified by 

red blink method. (See Failure LED 

Display table) 

Off Off 

Off 

 

Off Off  Blue 

On 

 

Scalar failure 

RED (2.0 sec.) 

→

 Off (2.0 sec.) 

Main Unit 

temperature failure 

RED (1.0 sec.) 

→

 Off (1.0 sec.) 

Power Supply failure 

RED (1.5 sec.) 

→

 Off (0.5 sec.) 

KE-42M1 (WB)     5

1-1.

STAND AND REAR COVER REMOVAL ...... 1-1

1-2.

MAIN SHIELD REMOVAL ............................. 1-1

1-3.

P AND UPU BOARDS REMOVAL ................. 1-2

1-4.

AU AND BP BOARDS REMOVAL ................ 1-2

1-5.

F AND G2 BOARDS REMOVAL .................... 1-3

1-6.

G1 BOARD REMOVAL ................................... 1-3

1-7.

PDP PANEL AND FAN BLOCK (R) ASSY

REMOVAL ........................................................ 1-4

1-8.

H1 AND H3 BOARDS REMOVAL ................. 1-5

1-9.

H2 BOARD REMOVAL ................................... 1-5

2-1.

WHITE BALANCE ADJUSTMENTS ............. 2-1

2-2.

RESETTING DATA .......................................... 2-1

2-3.

AGING MODE .................................................. 2-1

2-4.

PANEL VOLTAGE ADJUSTMENT ................ 2-2

2-5.

REMOTE ADJUSTMENT BUTTONS AND

INDICATORS .................................................... 2-2

3-1.

BLOCK DIAGRAMS ........................................ 3-1

(1)

AU Board ....................................................... 3-1

(2)

BH, H1 and H2 Boards .................................. 3-2

(3)

UPU and H3 Boards ...................................... 3-3

(4)

F and G1 Boards ............................................ 3-4

(5)

G2 Board ........................................................ 3-5

3-2.

FRAME DIAGRAMS ........................................ 3-6

3-3.

CIRCUIT BOARDS LOCATION ..................... 3-7

3-4.

PRINTED WIRING BOARDS AND SCHEMATIC

DIAGRAMS INFORMATION ......................... 3-8

(1)

Schematic Diagrams of AU Board ................ 3-9

(2)

Schematic Diagrams of BP Board ................. 3-14

(3)

Schematic Diagrams of F Board .................... 3-21

(4)

Schematic Diagrams of G1 Board ................. 3-22

(5)

Schematic Diagrams of G2 Board ................. 3-24

(6)

Schematic Diagram of H1 and H2 Boards .... 3-26

(7) Schematic Diagram of H3 Board .................. 3-27

3-5.

SEMICONDUCTORS ....................................... 3-28

4-1.

REAR COVER AND STAND ........................... 4-2

4-2.

CHASSIS-1 ........................................................ 4-3

4-3.

CHASSIS-2 ........................................................ 4-4

4-4.

BEZEL ASSY .................................................... 4-5

4-5.

PACKING MATERIALS .................................. 4-6

KE-42M1 (WB)     1-1

3

 Four screws

    (+BVTP 4x16)

4

 Four screws

    (+BVTP 4x16)

4

 Four screws

    (+BVTP 4x16)

3

 Four screws

    (+BVTP 4x16)

6

 Six screws

    (+BVTP 4x16)

5

 Six screws

    (+PSW 5x16)

8

 Rear cover

1

 Four screws

    (+PSW (M5))

2

 Stand

2

 Main Shield 

1

 Eighteen screws

    (+BVTP 4x16)

KE-42M1 (WB)     1-2

6

 Screw

    (+PSW 4x8)

7

 Two screws

    (+PSW 3x8)

1

 Two screws

    (+PSW 3x12)

0

 Three screws

    (+BVTP 3x12)

4

 Two screws

    (+PSW 3x8)

qa

 Four screws

    (+PSW 3x8)

3

 Screw

    ((+B) FIXED)

9

 U bracket assy    

qs

 UPU board

8

 Nut,washer hexagon

2

 Sheild(lower),P  

5

 P board   

1

 Four screws

    (+PSW 3x8 )

3

 Four screws

    (+PSW 3x8 )

5

 Four screws

    (+BVTP 3x12 )

2

 AU board

4

 BP board

6

 PWB bracket assy