Sanyo DP46848 User Manual

Specifications
POWER RATING . . . . . . . . . . . . . . . . . . . . . . . . . 120VAC
280W (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. . . . . . . . . 32 KEY REMOTE CONTROL
SOUND OUTPUT. . . . . . . . . . . . . . . . . . . . . . . . 5.0 W/CH
INTERMEDIATE FREQUENCY
PICTURE IF CARRIER . . . . . . . . . . . . . . . . . . 45.75MHz
SOUND IF CARRIER . . . . . . . . . . . . . . . . . . . 41.25MHz
COLOR SUB CARRIER . . . . . . . . . . . . . . . . . 42.17MHz
CABINET DIMENSIONS
WIDTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1112.5mm
HEIGHT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800.1mm
DEPTH INCLUDING BASE . . . . . . . . . . . . . . . 271.8mm
REFERENCE No. SM780153
DP46848, N6EE, PRODUCT CODE 113014204
Contents
SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . 2
SERVICE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . 3
ON-SCREEN SERVICE MENU . . . . . . . . . . . . . . . . . . . . . 4
POWER FAILURE CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . 5
MECHANICAL DISASSEMBLY. . . . . . . . . . . . . . . . . . . 6-9
CHASSIS ELECTRICAL PARTS LIST . . . . . . . . . . . . 10-25
CABINET PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . 26
COMPONENT AND TESTPOINT LOCATIONS . . . . 27-29
BLOCK DIAGRAM POWER LINES. . . . . . . . . . . . . . . . . 30
BLOCK DIAGRAM SIGNAL LINES . . . . . . . . . . . . . . . . 31
IC BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . 32-39
TROUBLESHOOTING FLOW CHARTS . . . . . . . . . . 40-42
CONTROL PORT FUNCTIONS . . . . . . . . . . . . . . . . . 43-44
SIGNAL FLOW CHARTS . . . . . . . . . . . . . . . . . . . . . . 45-52
SCHEMATIC NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
IC, DIODE, AND TRANSISTOR PIN LAYOUTS. . . . . . . 54
PC BOARD CONNECTIONS AND LOCATIONS . . . . . . 55
CAPACITOR AND RESISTOR CODE CHART . . . . . . . . 56
SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . 57-58
FILE NO.
SERVICE MANUAL Remote Control Digital
Color Television
DP46848 (U.S.A.)
(CANADA)
ORIGINAL VERSION
Chassis No. P46848-00
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.
© Sanyo Manufacturing Corporation 2008

Sanyo DP46848 Specifications

General

Brand	Sanyo
Model	DP46848
Category	TV
Language	English

Summary

Safety Instructions

Safety Precautions

Essential safety guidelines for servicing the TV, including transformer use and checks.

Antenna Cold Check Procedure

Procedure to check antenna terminal resistance for safety compliance.

Leakage Current Check Procedure

Test to ensure the TV does not exceed safe leakage current levels.

Product Safety Component Notice

Importance of using specified parts designated with 'A' for product safety.

Service Adjustments

On-Screen Service Menu System

How to access and use the TV's on-screen service menu for adjustments.

Power Failure Circuit

Component and Testpoint Locations

Main Board Locations

Main Board Solder Side Layout

Control Board Locations

Control Board Part & Solder Sides

Block Diagram - Power Lines

Block Diagram - Signal Lines

Troubleshooting - No Power

Troubleshooting - No Audio

Troubleshooting - No Video

Signal Flow Charts

Input Signal Flow

Schematic Notes

Handling Static Sensitive Devices

Techniques to prevent damage from electrostatic discharge to sensitive components.

Service Notes and Safety

Product Safety and Disposal