Mitsubishi - V27 - TV chassis
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Mitsubishi V27
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Equipment:
V27
Date:
2005
Category:
Group:
Sub Group:
Information
• Power Input : AC 120V, 60Hz
• Power Usage : 275W
300W [WS-65517/ WS-73517]
• Frequency Range : VHF 54 ~ 470MHz
UHF 470 ~ 806MHz
• Antenna Input : VHF/UHF 75Ω unbalanced
1 - NTSC.ATSC/QAM
1 -NTSC for PIP
• CRT Size : [7 inches] WS-55517/WS-65517
: [9 inches] WS-73517
• High Voltage : 32.0kV (at 0A)
• Speakers (8 Ohms 10W)
: 2 - 6" full range
• Input Level : VIDEO IN JACK (RCA Type)
1.0Vp-p 75Ω unbalanced
: AUDIO IN JACK (RCA Type)
-4.7dBm 43kΩ unbalanced
: S-VIDEO IN JACK
(Y/C separate type)
Y:1.0 Vp-p C:0.286Vp-p(BURST)
75Ω unbalanced
: COMP / Y, Cr, Cb (RCA Type)
Y: 1.0 Vp-p Cr, Cb: 700mVp-p
: ATV / Y(G), Pr(R), Pb(B), H, V
Y: 1.0Vp-p with sync 75Ω (BNC)
Pr, Pb: 700mV 75Ω
H, V: 3.0Vp-p 75Ω
: VGA / R,G,B,V,H (15 pin D)
• Output Level : VIDEO OUT JACK (RCA Type)
1.0Vp-p 75Ω unbalanced
: AUDIO OUT JACK (RCA Type)
-4.7dBm 4.7kΩ unbalanced
• Digital : IEEE-1394 I/O Jacks
Interface : AC-3 Digtal Audio Output
: HDMI
: CableCARD
: System 5 IR
: USB Service Port
3 Manuals
Service manual
Manual type:
Service manual
Pages:
12
Size:
278.9 KB
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Electronic document, no scan, very well readable.
Upload date:
Feb. 11, 2009
MD5:
689266ec-2c0c-51e2-e30d-5a759ef35c34
Downloads:
8476
Information
High Speed Troubleshooting
Safety Precautions ......................................................................................................................... 2
Cabinet Disassembly ...................................................................................................................... 3
Chassis Removal ............................................................................................................................ 5
Troubleshooting .............................................................................................................................. 6
PCB Locations and Functions......................................................................................................... 8
PCB Parts Reference ...................................................................................................................... 9
Service manual with schematics
Manual type:
Service manual with schematics
Pages:
12
Size:
15.1 MB
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Electronic document, no scan, very well readable.
Upload date:
Jan. 3, 2012
MD5:
d5312e2f-cda2-7fbc-3cfd-8cdc90d6e5f5
Downloads:
10320
Information
Before servicing this chassis, it is important that the service person read the SAFETY PRECAUTIONS and
PRODUCT SAFETY NOTICE contained in Part 1 of this manual.
PART 2
SCHEMATIC DIAGRAMS
CONTENTS Page
Overall PCB Block Diagram ........................................... 1
PCB-MAIN ..................................................................... 2
PCB-TERMINAL [INPUT SWITCH] ................................ 3
PCB-TERIMINAL [PIC μP / FIF / E2P] ............................ 4
PCBs-CRT / DBF / PREAMP /CONTROL1 /
CONTROL2 / FRONT ......................................... 5
PCB-HDMI..................................................................... 6
PCB-SIGNAL-1 [MICRO]............................................... 7
PCB-SIGNAL-2 [CONVERGENCE GENERATOR] ....... 8
PCB-SIGNAL-3 [VCJ / VERTICAL DEF / AUDIO].......... 9
PCB-TUNER-1 [TUNER / AUDIO]................................ 10
PCB-TUNER-2 [ATSC DEMOD] ..................................11
Refer to PART 1 for:
• Specifications
• Safety Precautions
• Disassembly
• CRT Replacement
• Electrical Adjustments
• Parts List
• Block Diagrams
Service manual
Manual type:
Service manual
Pages:
76
Size:
16.4 MB
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Electronic document, no scan, very well readable.
Upload date:
Sept. 30, 2013
MD5:
e30bfbc1-4e46-3647-d422-566e99b4e5d1
Downloads:
3091
Information
INTRODUCTION ............................................................................................................................... 5
PRODUCT SAFETY NOTICE ............................................................................................................. 5
SAFETY PRECAUTIONS ................................................................................................................... 6
DISASSEMBLY PROCEDURES ......................................................................................................... 7
Cabinet Disassembly (Front) .................................................................................................. 7
Cabinet Disassembly (Rear) .................................................................................................. 8
SERVICING THE LENTICULAR LENS AND FRESNEL SCREEN ....................................................... 9
Removal of the Lenticular Screen and Fresnel Lens ........................................................................ 9
Installation of the Lenticular Screen and Fresnel Lens ................................................................... 10
DIAMONDSHIELDTM Removal and Installation ............................................................................. 11
CABINET SEPARATION PROCEDURES
WS-65517 / WS-73517 Cabinet Separation .................................................................................. 12
SERVICING PCBs ............................................................................................................................ 12
Chassis Removal .......................................................................................................................... 12
PCB Locations............................................................................................................................. 13
Major Parts Locations ................................................................................................................... 13
CRT REPLACEMENT ....................................................................................................................... 14
CRT Removal ............................................................................................................................... 14
CRT Installation ............................................................................................................................ 15
ELECTRICAL ADJUSTMENTS ........................................................................................................ 17
Equipment and Initial Setup .......................................................................................................... 17
Initial Setup .................................................................................................................................. 18
LED Indicator Diagnostics ............................................................................................................. 19
Remote Control Operational Mode ................................................................................................ 19
Circuit Adjustment Mode ............................................................................................................... 20
Service Mode Reset ...................................................................................................................... 21
Convergence Adjustment Mode ..................................................................................................... 21
Adjustment Items List ................................................................................................................... 23
Adjustment Procedures ................................................................................................................ 26
Test Point Locations ............................................................................................................ 26
Main / Sub Y Level & HV Regulation .................................................................................... 27
Main / Sub Color Level & CRT Cutoff .................................................................................... 28
White Balance (NTSC) & White Balance (HD) ..................................................................... 29
Black Level & Sub Contrast ................................................................................................. 30
Dynamic Focus Presets & Lens Focus................................................................................ 31
Alignment Magnet / Electrostatic Focus & Character Position ............................................. 32
Geometry Presets ............................................................................................................... 33
Deflection Geometry Adjustments ........................................................................................ 34
Convergence Geometry Adjustments ................................................................................... 35
Centering & Static Convergence ........................................................................................... 36
Coarse Convergence Adjustments ........................................................................................ 37
Fine Convergence Adjustments ............................................................................................ 38
CHIP PARTS REPLACEMENT ......................................................................................................... 39
REPLACEMENT PARTS .................................................................................................................. 40
Parts Ordering .............................................................................................................................. 40
Critical and Warranty Parts Designation........................................................................................ 40
Parts Tolerance Codes .................................................................................................................. 40
Quick Reference List .................................................................................................................... 41
SERVICE PARTS LIST .................................................................................................................... 42
SCREEN ASSEMBLY PARTS LIST.................................................................................................. 55
CIRCUITRY BLOCK DIAGRAMS ..................................................................................................... 56
Part 2
V25/V27 Schematic Diagrams
CONTENTS Page
SCHEMATIC DIAGRAMS
PWB Interconnect Diagram............................................................................................................. 1
PWB-MAIN (Power Supply / Horizontal Deflection / HV) ................................................................ 2
PWB-TERMINAL -1 (Input Switch) .................................................................................................. 3
PWB-TERMINAL 2 (PIC μPC / FIF /E2P) ....................................................................................... 4
PWBs-CRT / CONTROL / FRONT / PREAMP / SVM / DBF ........................................................... 5
HDMI ............................................................................................................................................. 6
PWB-SIGNAL-1 (MICRO) ............................................................................................................... 7
PWB-SIGNAL-2 (Convergence Generator)....................................................................................... 8
PWB-SIGNAL-3 (VCJ / Vertical Deflection / Audio)) ........................................................................ 9
PWB-TUNER-1 (Tuners / Audio) .................................................................................................... 10
PWB-TUNER-2 (Demodulator) ...................................................................................................... 12