Sanyo DP46840 User Manual

Specifications
POWER RATING . . . . . . . . . . . . . . . . . . . . . . . . . 120VAC
213 W (AVG.)
ANTENNA INPUT IMPEDANCE. . . . . . . . . . . . . . . . . 75Ω
UHF/VHF/CATV
DIGITAL
RECEIVING CHANNEL . . . . . . . . . . . . . . . . . 2 - 13 (VHF),
14 - 69 (UHF),
01, 14-94, 95-135 (CATV)
1-135 (DIGITAL)
REMOTE READY. . . . . . . . . 48 KEY REMOTE CONTROL
SOUND OUTPUT. . . . . . . . . . . . . . . . . . . . . . . 10.0 W/CH
INTERMEDIATE FREQUENCY
PICTURE IF CARRIER . . . . . . . . . . . . . . . . . . 45.75MHz
SOUND IF CARRIER . . . . . . . . . . . . . . . . . . . 41.25MHz
COLOR SUB CARRIER . . . . . . . . . . . . . . . . . 42.17MHz
CABINET DIMENSIONS
WIDTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1111mm
HEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 779mm
DEPTH INCLUDING BASE . . . . . . . . . . . . . . . . 324mm
REFERENCE No. SM780172
DP46840, N7EK, PRODUCT CODE 113020129
FILE NO.
SERVICE MANUAL
Remote Control Digital
Color Television
DP46840 (U.S.A.)
(CANADA)
ORIGINAL VERSION
Chassis No. P46840-00
NOTE: Match the Chassis No. on
the unit’s back cover with
the Chassis No. in the
Service Manual.
If the Original Version
Service Manual Chassis
No. does not match the
unit’s, additional Service
Literature is required. You
must refer to “Notices” to the
Original Service Manual
prior to servicing the unit.
Servicing should be performed by only trained and qualified service personnel.
Contents
SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . 2
SERVICE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . 3
ON-SCREEN SERVICE MENU . . . . . . . . . . . . . . . . . . . . . 4
POWER FAILURE CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . 5
MECHANICAL DISASSEMBLY . . . . . . . . . . . . . . . . . . . . 6
CHASSIS ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . 8
COMPONENT AND TESTPOINT LOCATIONS . . . . . . 21
BLOCK DIAGRAM POWER LINES. . . . . . . . . . . . . . . . . 27
BLOCK DIAGRAM SIGNAL LINES . . . . . . . . . . . . . . . . 28
IC BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . 29
TROUBLESHOOTING FLOW CHARTS . . . . . . . . . . . . . 35
CONTROL PORT FUNCTIONS. . . . . . . . . . . . . . . . . . . . 38
MAIN SHEET BLOCK DIAGRAM & PERIPHERICALS. . 40
SCHEMATIC NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
IC, DIODE, AND TRANSISTOR PIN LAYOUTS. . . . . . . 42
PC BOARD CONNECTIONS AND LOCATIONS . . . . . . 43
CAPACITOR AND RESISTOR CODE CHART . . . . . . . . 44
SCHEMATIC DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . 45
© Sanyo Manufacturing Corporation 2010

Sanyo DP46840 Specifications

General

Brand	Sanyo
Model	DP46840
Category	TV
Language	English

Summary

Safety Instructions

Safety Precautions

Crucial safety warnings for handling the receiver.

Leakage Current Check

Test for electrical shock hazard due to leakage current.

Servicing Electrostatically Sensitive Devices

Techniques to prevent damage from static discharge.

Service Adjustments

On-Screen Service Menu System

Steps to access and operate the service menu.

Power Failure Circuit

Chassis Electrical Parts List

Component and Testpoint Locations

Main Board Parts Side

Component layout on the main board's parts side.

Main Board Solder Side

Component layout on the main board's solder side.

Block Diagram Power Lines

Block Diagram Signal Lines

Troubleshooting Flow Charts

No Power

Troubleshooting guide for no power issues.

Troubleshooting Flow Charts (Cont.)

No Video

Troubleshooting guide for no video issues.

No Audio

Troubleshooting guide for no audio issues.

Control Port Functions

System Control (CPU : IC800)

Main Sheet Block Diagram & Peripherals

Schematic Notes

Notes on Schematic Diagrams

Electrostatically Sensitive Devices

Handling precautions for static-sensitive components.

Service Notes

Product Safety Notice

Component replacement advice for safety.