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KE-42MR1(K)

4

DIAGNOSIS
(Reliability Self Diagnostic Display Specifications for MEDIA RECEIVER)

1) *Operation count is based on WDT.

*For flashes, the Power/Standby LED flashes in red.
*The flash period is based on the reliability standard.

The abnormal conditions are indicated by the following LED flashes.

Flash Count Error Display Name Error Description

Oprating Detection

Port

4

Fan Error

Error detected for

Detects Low when fan 

IC6200 pin #2 

fan box

function normally. 
Detects High when Fan stops 
abnormally

8

Digtal OVP 

OVP for DD Con-  Detects High when normal.

IC5210 pin #49

verter on DP board Detects Low  when abnormal.

9

Panel Error

Panel malfunction Detects during communication 
detected with 

panel. 

Repair part

•

 FAN

•

 FAN CONNECTOR

•

 SET 11V LINE

•

 SET 5V   LINE

DP board

•

 Q1612, Q1613, Q1614

Panel Display Unit

*A failure part can be expected by the number of times of blink of LED. 
*When two failures occur, the failure item generated previously is detected. 
*When failure occurs simultaneously, an item with little number of times of blink is detected.
*In other than “Fan Error”, the unit is in standby state and blink LED at intervals of regulation. 

In “Fan Error”, the unit is in a standby state after display for 1 minute about the message of “Fan problem –   
Powering down”

every about 0.3s

about 3s

• Timing of LED blink (example of 4 times blink)

ON

OFF

In the following case, POWER LED of Media Receiver Box blinks at a fixed interval in ORANGE

•

When the cable which connects between Media Receiver Box and Panel Display has fallen out.

•

When the AC code for Panel Display has fallen out.

In the following case, POWER LED of  Panel Display blinks at a fixed interval in ORANGE

•

When the cable which connects between Media Receiver Box and Panel Display has fallen out.

•

When the AC code for Media Receiver Box has fallen out.

2)

The example which judges whether it is failure

• 

POWER LED of Media Receiver Box: Blink 9 times in RED, and of Panel Display blink,

and No picture or Power circuit does not work 

→

 Large possibility that Panel Display is out of order. 

•

When turn on Media Receiver Box, and NO LED of Box shine  

•

When NO Blue  LED of Box shine 

→

 Large possibility that Media Receiver Box is out of order.   

Check SET5V or IIC line on H1 board.

•

When turn on Media Receiver Box, and Fan does not work

 

→

 Large possibility that Media Receiver Box is out of order

3)

 

→

 Large possibility that Media Receiver Box is out of order. 

KE-42MR1(K)      5

1-1. Display Unit (PDM-4200) .................................... 1-1

1-1-1. Rear Cover Removal ........................................... 1-1

1-1-2. K and F Boards Removal .................................... 1-1

1-1-3. P Board Removal ................................................. 1-2

1-1-4. G and F2 Boards Removal .................................. 1-2

1-1-5. R1 Board Removal .............................................. 1-3

1-1-6. R2 Board Removal .............................................. 1-3

1-2. Media Receiver Unit (MBT-MR1) ....................... 1-4

1-2-1. Panel and Covers Removal ................................. 1-4

1-2-2. H1 Board Removal ............................................. 1-4

1-2-3. H4 Board Removal .............................................. 1-5

1-2-4. H3 Board Removal ............................................. 1-5

1-2-5. MS2 Board Removal ........................................... 1-6

1-2-6. H2 Board Removal ............................................. 1-6

1-2-7. A Board Removal ................................................ 1-7

1-2-8. B Block Assy Removal ...................................... 1-7

1-2-9. M, AD, and AU Boards Removal ....................... 1-8

1-2-10. A and AU Boards Removal ................................. 1-8

1-2-11. M Board Removal .............................................. 1-9

1-2-12. IF Boards Removal .............................................. 1-9

1-2-13. U1 Boards Removal ............................................ 1-10

1-2-14. U2 Boards Removal ............................................ 1-10

2-1. VS, VD Voltage Adjustment (PDM-4200) ........... 2-1

2-2. White Balance Adjustment (PDM-4200) ............ 2-1

3-1. Display Unit (PDM-4200) .................................... 3-1

3-2. Media Receiver Unit (MBT-MR1) ....................... 3-1

4-1. Block Diagrams ................................................... 4-1

4-1-1. Display Unit (PDM-4200) ................................... 4-1

4-1-2. Media Receiver Unit (MBT-MR1) .................... 4-6

4-2. Frame Diagram ................................................... 4-15

4-3. Circuit Boards Location ...................................... 4-16

4-3-1. Display Unit(PDM-4200) .................................... 4-16

4-3-2. Media Receiver Unit (MBT-MR1) ..................... 4-16

4-4. Schematic Diagrams and

Printed Wiring Boards ......................................... 4-16

4-4-1. Display Unit(PDM-4200) .................................... 4-17

(1) Schematic Diagram of F Board ........................... 4-17

(2) Schematic Diagram of F2 Board ......................... 4-18

(3) Schematic Diagrams of G Board ......................... 4-19

(4) Schematic Diagram of K Board .......................... 4-23

(5) Schematic Diagrams of P Board ......................... 4-25

(6) Schematic Diagrams of R1 amd R2 Boards ........ 4-30

4-4-2.Media Receiver Unit (MBT-XBR900) .................. 4-31

(1) Schematic Diagrams of A Board ......................... 4-31

(2) Schematic Diagrams of AD Board ...................... 4-34

(3) Schematic Diagram of AU Board ....................... 4-39

(4) Schematic Diagrams of BM1C Board ................. 4-41

(5) Schematic Diagrams of DICA Board .................. 4-44

(6) Schematic Diagram of DP Board ........................ 4-50

(7) Schematic Diagram of H1 Board ........................ 4-52

(8) Schematic Diagram of H2 Board ........................ 4-54

(9) Schematic Diagrams of H3 and H4 Boards ........ 4-56

(10)Schematic Diagram of IFA Board ...................... 4-57

(11)Schematic Diagrams of M Board ........................ 4-59

(12)Schematic Diagram of MS2 Boards ................... 4-65

(13)Schematic Diagram of U1 Board ........................ 4-67

(14)Schematic Diagram of U2 Board ........................ 4-69

4-5. Semiconductors .................................................. 4-70

5-1. Display Unit (PDM-4200) ................................... 5-2

5-2. Media Receiver Unit-1 (MBT-MR1) ................... 5-3

5-3. Media Receiver Unit-2 (MBT-MR1) .................... 5-4

5-4. Packing Materials for Display Unit

(PDM-4200) ....................................................... 5-5

5-5. Packing Materials for Media Receiver Unit

(MBT-MR1) ........................................................ 5-6

KE-42MR1(K)      1-1

4

 Rear cover assy

1

 Eight screws

     (+PSW 5X16)

2

 Three screws

     (+PSW 3X8)

3

 Ten screws

     (+BVTP 4X16)

3

 Ten screws

     (+BVTP 4X16)

3

 Four screws

     (+PSW 3X8)

1

 Two screws

     (+PSW 3X8)

2

 F Board

4

 K Board

KE-42MR1(K)      1-2

3

 Four screws

     (+PSW 3X8)

4

 P Board

1

 Two Connector screws

2

 Two screws

     (M2.6 S HEAD)

1

 Three screws

     (+BVTP 3X12)

2

 F2 Board

3

 Seven screws

     (+BVTP 3X12)

4

 G Board