Sony KE-42XBR900 (serv.man3) Service Manual ▷ View online
KE-42XBR900(UC)
5
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 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
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
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.
*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”
Powering down”
every about 0.3s
about 3s
• Timing of LED blink (example of 4 times blink)
ON
OFF
KE-42XBR900(UC)
6
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-42XBR900(UC)
7
SAFETY CHECK-OUT
...................................................
3
DIAGNOSIS
......................................................................
5
1. DISASSEMBLY
1-1. Display Unit (PDM-4200)
1-1-1.Rear Cover Removal .......................................
1-1
1-1-2.K and F Boards Removal ................................
1-2
1-1-3.P Board Removal ............................................
1-3
1-1-4.G and F2 Boards Removal ..............................
1-4
1-1-5.R1 Board Removal ..........................................
1-5
1-1-6.R2 Board Removal ..........................................
1-6
1-2. Media Receiver Unit (MBT-XBR900)
1-2-1.Panel and Covers Removal..............................
1-7
1-2-2.H1 Board Removal .........................................
1-8
1-2-3.H4 Board Removal ..........................................
1-9
1-2-4.H3 Board Removal ......................................... 1-10
1-2-5.MS2 Board Removal ....................................... 1-11
1-2-6.H2 Board Removal ......................................... 1-12
1-2-7.A Board Removal ............................................ 1-13
1-2-8.B Block Assy Removal .................................. 1-14
1-2-9.M, AD, and AU Boards Removal ................... 1-15
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
1-2-10.A and AU Boards Removal ........................... 1-16
1-2-11.M Board Removal ........................................ 1-17
1-2-12.IF Boards Removal........................................ 1-18
1-2-13.U1 Boards Removal ...................................... 1-19
1-2-14.U2 Boards Removal ...................................... 1-20
2. ADJUSTMENTS
2-1. VS, VD Voltage Adjustment (PDM-4200) ...............
2-1
2-2. White Balance Adjustment (PDM-4200) ..................
2-2
3. TROUBLESHOOTING
3-1. Display Unit (PDM-4200) ........................................
3-1
3-2. Media Receiver Unit (MBT-XBR900) .....................
3-2
4. DIAGRAMS
4-1. Block Diagrams
4-1-1.Display Unit(PDM-4200) ................................
4-1
4-1-2.Media Receiver Unit (MBT-XBR900) ...........
4-6
4-2. Frame Diagram ......................................................... 4-15
4-3. Circuit Boards Location
4-3-1.Display Unit(PDM-4200) ................................ 4-16
KE-42XBR900(UC)
8
Section
Title
Page
Section
Title
Page
4-3-2.Media Receiver Unit (MBT-XBR900) ............ 4-17
4-4. Schematic Diagrams and Printed WiringBoards....... 4-18
4-4-1.Display Unit(PDM-4200) ................................ 4-19
(1)Schematic Diagrams of F Board ......................... 4-19
(2)Schematic Diagram of F2 Board ......................... 4-20
(3)Schematic Diagrams of G Board ......................... 4-21
(4)Schematic Diagram of K Board .......................... 4-25
(5)Schematic Diagrams of P Board ......................... 4-27
(6)Schematic Diagrams of R1 amd R2 Boards ........ 4-32
4-4-2.Media Receiver Unit (MBT-XBR900) ................... 4-33
(1)Schematic Diagrams of A Board ......................... 4-33
(2)Schematic Diagram of AD Board ....................... 4-36
(3)Schematic Diagrams of AU Board ...................... 4-41
(4)Schematic Diagram of DP Board ........................ 4-43
(5)Schematic Diagrams of H1 and H5 Boards ......... 4-45
(6)Schematic Diagrams of H2 Board ....................... 4-47
(7)Schematic Diagram of H3 and H4 Board ............ 4-48
(8)Schematic Diagrams of IFA Board ..................... 4-49
(9)Schematic Diagrams of M Board ........................ 4-51
(10)Schematic Diagrams of MS2 Boards ................ 4-57
(11)Schematic Diagrams of U1 Board ..................... 4-59
(12)Schematic Diagram of U2 Board ...................... 4-61
(13)Schematic Diagram of BM1C Board ................ 4-62
(14)Schematic Diagram of DICA Board ................. 4-65
4-5. Semiconductors ......................................................... 4-71
5. EXPLODED VIEWS
..................................................
5-1
5-1. Display Unit (PDM-4200) .......................................
5-2
5-2. Media Receiver Unit-1 (MBT-XBR900) .................
5-4
5-3. Media Receiver Unit-2 (MBT-XBR900) ..................
5-6
5-4. Packing Materials for Display Unit (PDM-4200) ........
5-7
5-5. Packing Materials for Media Receiver Unit
(MBT-XBR900) ......................................................
5-8
6. ELECTRICAL PARTS LIST
...................................
6-1
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