MITSUBISHI HD5000 Service Manual

MITSUBISHI HD5000 Service Manual
0 Rating(s)
Read reviews

Service Manual for MITSUBISHI HD5000, downloadable as a PDF file.

Manual details

Immediate download after payment.
Delivered as a PDF file.
The manual has 52 pages
File size: 21.95 MB
Available language versions: English
Different language versions may vary sligthly in file size and page count.

We guarantee that...

our manuals are complete,
the manual includes circuit diagrams,
our manuals are checked with antivirus,
We'll issue refund if the manual is damaged, incomplete or unreadable (our refund policy)

Sample pages

CAUTION:

Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and

"PRODUCT SAFETY NOTICE" contained in this manual.

MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.

9351 Jeronimo Road, Irvine, CA 92618-1904

MITSUBISHIELECTRIC Ser

Ser

Service

vice

Manual

2003

SET TOP BOX

V21S CHASSIS

SPECIFICATIONS

· Power Input

: AC 120V, 60Hz

· Power Usage

: 79W

· Frequency Range

: VHF

54 ~ 470MHz

UHF 470 ~ 806MHz

· Antenna Input

: VHF/UHF 75

unbalanced

2 - NTSC

1 -ATV/QAM

· Cabinet Weight and Demensions

· Input Level

: VIDEO IN JACK (RCA Type)

1.0Vp-p 75

unbalanced

: AUDIO IN JACK (RCA Type)

-4.7dBm 43k

unbalanced

: S-VIDEO IN JACK

(Y/C separate type)

Y:1.0 Vp-p C:0.286Vp-p(BURST)

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 75

(BNC)

Pr, Pb: 700mV 75

H, V: 3.0Vp-p 75

: VGA / R,G,B,V,H (15 pin D)

· Output Level

: VIDEO OUT JACK (RCA Type)

1.0Vp-p 75

unbalanced

: AUDIO OUT JACK (RCA Type)

-4.7dBm 4.7k

unbalanced

· Digital Interface

: IEEE-1394 I/O Jacks

: AC-3 Digital Audio Output

: MonitorLinkTM/DVI

: MonitorLinkTM Control/RS-232C

: NetCommand

V21S

MODELS

HD-5000

HD-5000A

Mode l

W e ight

He ight W idth De pth

HD-5000

19 lbs.

17"

16"

HD-5000A

19 lbs.

17"

16"

MODELS: HD-5000 / HD-5000A

Page 3

INTRODUCTION ................................................................................................................................5

PRODUCT SAFETY NOTICE ............................................................................................................. 5

SAFETY PRECAUTIONS ................................................................................................................... 6

DISASSEMBLY

Top Cover Assembly / Disassembly ................................................................................................7

PCB Disassembly FlowChart .......................................................................................................... 7

PCB Assembly / Disassembly ........................................................................................................ 8

Cabinet Assembly / Disassembly ................................................................................................. 10

ELECTRICAL ADJUSTMENTS

Test Equipment ............................................................................................................................. 11

Initial Setup ................................................................................................................................... 12

LED Indicator Diagnostics ............................................................................................................. 13

Error Codes .................................................................................................................................. 13

Remote Control Operational Mode ................................................................................................ 13

Circuit Adjustment Mode ............................................................................................................... 14

On Screen Display Position Adjustment Mode .............................................................................. 15

Data Transfer Mode ....................................................................................................................... 15

E2PROM Replacement ................................................................................................................. 15

Adjustment Items List ................................................................................................................... 15

Adjustment Test Points ................................................................................................................. 17

Adjustment Procedures ................................................................................................................ 18

Audio Circuit ........................................................................................................................ 18

Character Position ............................................................................................................... 19

Main/Sub Y Level ................................................................................................................. 19

Color Alignment ................................................................................................................... 20

CHIP PARTS REPLACEMENT ......................................................................................................... 21

REPLACEMENT PARTS

Parts Ordering .............................................................................................................................. 22

Critical and Warranty Parts Designation ........................................................................................ 22

Parts Tolerance Codes .................................................................................................................. 22

Service Parts List .......................................................................................................................... 23

CIRCUITRY BLOCK DIAGRAMS

Standby Supplies Regulator .......................................................................................................... 32

DM Power Supply ......................................................................................................................... 33

Video / Color A/V Switch Circuit .................................................................................................... 34

Video / Color Signal Path .............................................................................................................. 35

Control Circuitry ............................................................................................................................ 36

Sound Circuitry ............................................................................................................................. 37

Sync Circuitry ............................................................................................................................... 38

CONTENTS

MODELS: HD-5000 / HD-5000A

Page 4

Section 2 .... Schematic Diagrams

SCHEMATIC DIAGRAMS

Overall Block Diagram ..................................................................................................................... 1

PCB-POWER / CONTROL / E2P .................................................................................................... 2

PCB-TERMINAL-1 [JACK] .............................................................................................................. 3

PCB-TERMINAL-2-1 [SWITCH] ....................................................................................................... 4

PCB-TERMINAL-2-2 [3DYC] ........................................................................................................... 5

PCB-SIGNAL-1 [MICRO] ................................................................................................................. 6

PCB-SIGNAL-2 [AV / IO] ................................................................................................................. 7

PCB-SIGNAL-3 [VIDEO / CHROMA] ............................................................................................... 8

PCB-SIGNAL-4 [IR / MV / DMP] ..................................................................................................... 9

PCB-2HDW-1 [IN] ......................................................................................................................... 10

PCB-2HDW-2 [MAIN] .................................................................................................................... 11

PCB-2HDW-3 [OUT] ..................................................................................................................... 12

PCB-2HDW-4 [C720] HD-5000A ONLY ......................................................................................... 13

PCB-DEMOD ................................................................................................................................14

PCB LAYOUT DIAGRAMS ............................................................................................................... 15

Page 6

MODELS: HD-5000 / HD-5000A

SAFETY PRECAUTIONS

NOTICE:

Observe all cautions and safety related notes located inside the receiver cabinet and on the

receiver chassis.

WARNING:

Operation of this receiver outside the cabinet or with the cover removed presents a shock hazard

from the receiver's power supplies. Work on the receiver should not be attempted by anyone who is

not thoroughly familiar with the precautions necessary when working on high voltage equipment.

When service is required, observe the original lead dress. Extra precaution should be taken to

assure correct lead dress in the high voltage area. Where a short-circuit has occurred, replace those

components that indicate evidence of overheating.

Leakage current check

Before returning the receiver to the customer, it is recommended that leakage current be measured according to

the following methods.

1. Cold Check

With the alternating current (AC) plug removed from the AC source, place a jumper across the two AC plug

prongs. Connect one lead of an ohm meter to the AC plug and touch the other lead to each exposed metal

part (i.e. antennas, handle bracket, metal cabinet, screw heads, metal overlay, control shafts, etc.), particu-

larly any exposed metal part that has a return path to the chassis. The resistance of the exposed metal parts

having a return path to the chassis should be a minimum of 1Mega Ohm. Any resistance below this value

indicates an abnormal condition and requires corrective action.

2. Hot Check ...Use the circuit shown below to perform the hot check test.

1. Keep switch S1 open and connect the receiver to the measuring circuit. Immediately after

connection, and with the switching devices of the receiver in their operating positions, measure

the leakage current for both positions of switch S2.

2. Close switch S1, energizing the receiver. Immediately after closing switch S1, and with the

switching devices of the receiver in their operating positions, measure the leakage current for both

positions of switch S2. Repeat the current measurements of items 1 and 2 after the receiver has

reached thermal stabilization. The leakage current must not exceed 0.5 milliampere (mA).

GWG - Green Wire Ground

(Earth Ground)

Reviews

There are no reviews of this manual yet.

Related Products

Cover page of MITSUBISHI CT25M1EMG Service Manual

MITSUBISHI HD5000 Service Manual

Manual details

We guarantee that...

Sample pages

Reviews

Related Products

MITSUBISHI CT25M1EMG Service Manual

MITSUBISHI WS73909 Service Manual

MITSUBISHI EUM1491A Service Manual

MITSUBISHI HSS5600E Service Manual

MITSUBISHI CT2027 Service Manual

Popular Brands

General

Members Area