Sony KE-50MR1 Service Manual ▷ View online
KE-50MR1(AEP)
5
DIAGNOSIS
(Reliability Self Diagnostic Display Specifications for MEDIA RECEIVER)
The abnormal conditions are indicated by the following LED flashes.
LED Status MEDIABOX PANEL
POWER/STBY •
⇔
•
flashes alternately
-
PANEL ALARM
(Not available for re-start)
Flashes (1Hz) - Defective for cable connection
Flashes (1Hz) - Defective for cable connection
•
Flashes four times - Defective for power voltage of fan,
fan protection
•
Flashes six times +3.3V malfunction Power protection on G board detected
•
Flashes nine times PANEL malfunction -
TIMER
Flashes (1Hz) Defective for cable -
connection
This unit has the following self diagnostic function. Refer to this table to
identify a defective point in case of any malfunction.
identify a defective point in case of any malfunction.
Problem
Symptom
Mediabox
Digital 3.3V malfunction Shut down when Digital 3.3V becomes equal or under 0V.
Defective for cable The both White and Black interface cables are not connected
connection with the panel.
Panel
PANEL ALARM
Defective for cable
connection The both White and Black interface cables are not connected
with the panel.
connection The both White and Black interface cables are not connected
with the panel.
Fan malfunction
Power protector operation
*Operation count is based on WDT.
*For flashes, the Power/Standby LED flashes in red.
*The flash period is based on the reliability standard.
*For flashes, the Power/Standby LED flashes in red.
*The flash period is based on the reliability standard.
KE-50MR1(AEP)
6
1. DISASSEMBLY
1-1. Display Unit (PDM-5000)
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-MR1)
1-2-1.Panel and Covers Removal..........................
1-7
1-2-2.G2, A, and MS Boards Removal ................
1-8
1-2-3.TU Board Removal .....................................
1-9
1-2-4.U Board Removal .......................................
1-10
1-2-5.H2 Board Removal ......................................
1-11
1-2-6.H5 Board Removal .....................................
1-12
1-2-7.MSX Board Removal ..................................
1-13
1-2-8.H1 Board Removal .....................................
1-14
1-2-9.H4 Board Removal ......................................
1-15
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
2. ADJUSTMENTS
2-1. Readjustment of A/D Converter and Video Coder
Calibration
2-1-1.Adjustment preparation ...............................
2-1
2-1-2.AD Adjustment of RGB System .................
2-1
2-1-3.AD Adjustment of Component(other 15k)
System .........................................................
2-1
2-1-4.AD Adjustment of CVBS Video(NTSC)
System .........................................................
2-2
2-1-5.AD Adjustment of CVBS Video(PAL)
System .........................................................
2-3
2-1-6.AD Adjustment of CVBS Video(SECAM)
System .........................................................
2-3
2-1-7.AD Adjustment of CVBS Video(PAL 60)
System .........................................................
2-4
2-1-8.AD Adjustment of CVBS Video(NTSC 4.43)
System .........................................................
2-5
2-1-9.AD Adjustment of Video(YC) System........
2-6
2-1-10.AD Adjustment of Component(15k)
System ........................................................
2-6
KE-50MR1(AEP)
7
Section
Title
Page
Section
Title
Page
2-1-11.AD Adjustment of RGB 15k System ........
2-6
3. DIAGRAMS
3-1. Block Diagrams
3-1-1.Display Unit(PDM-5000) ............................
3-1
3-1-2.Media Receiver Unit (MBT-MR1) .............
3-6
3-2. Circuit B0ards Location
3-2-1.Display Unit(PDM-5000) ............................
3-15
3-2-2.Media Receiver Unit (MBT-MR1) ..............
3-16
3-3. Schematic Diagrams and Printed WiringBoards
3-3-1.Display Unit(PDM-5000) ............................
3-17
(1)Schematic Diagrams of F Board .....................
3-18
(2)Schematic Diagram of F2 Board .....................
3-19
(3)Schematic Diagrams of G Board .....................
3-20
(4)Schematic Diagram of K Board ......................
3-24
(5)Schematic Diagrams of P Board .....................
3-26
(6)Schematic Diagrams of R1 amd R2 Boards ....
3-31
3-3-2.Media Receiver Unit (MBT-MR1) .....................
3-32
(1)Schematic Diagrams of A Board .....................
3-32
(2)Schematic Diagram of G2 Board ....................
3-45
(3)Schematic Diagrams of H1 Board ...................
3-47
(4)Schematic Diagram of H2 Board ....................
3-49
(5)Schematic Diagrams of H4 and H5 Boards .....
3-51
(6)Schematic Diagrams of MS Board ..................
3-52
(7)Schematic Diagram of MSX Board .................
3-56
(8)Schematic Diagrams of TU Board ..................
3-57
(9)Schematic Diagrams of U Board .....................
3-60
3-4. Semiconductor ......................................................
3-63
4. EXPLODED VIEWS
..............................................
4-1
4-1. Display Unit (PDM-5000) ...................................
4-2
4-2. Media Receiver Unit (MBT-MR1) ......................
4-4
4-3. Packing Materials for Display Unit (PDM-5000) ....
4-6
4-4. Packing Materials for Media Receiver Unit
(MBT-MR1) ........................................................
4-7
5. ELECTRICAL PARTS LIST
...............................
5-1
KE-50MR1(AEP)
1-1
SECTION 1
DISASSEMBLY
1-1. PANEL UNIT (PDM-5000)
1-1-1. REAR COVER REMOVAL
4
Rear cover assy
1
Eight screws
(+PSW 5X16)
2
Three screws
(+PSW 3X8)
3
Ten screws
(+BVTP 4X16)
3
Ten screws
(+BVTP 4X16)
1
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