Sanyo VIZZON HT30746 Service Manual

of Sanyo Manufacturing Corporation.
SERVICE MANUAL
Servicing should be performed by only trained and qualified service personnel.
Contents
Safety Instructions . . . . . . . . . . . . . . . . . . 2
Service Adjustments . . . . . . . . . . . . 3 – 13
Service Hints . . . . . . . . . . . . . . . . . . . . . . 14
Mechanical Disassemblies. . . . . . . . . . . 15
Chassis Electrical Parts List . . . . . . 16 – 32
Cabinet Parts List . . . . . . . . . . . . . . . . . . 33
Component and Test Point
Locations . . . . . . . . . . . . . . . . . . . 34 – 41
Block Diagrams . . . . . . . . . . . . . . . . 42 – 47
Troubleshooting Flow Charts . . . . . 48 – 50
Control Port Function . . . . . . . . . . . 51 – 52
Schematic Inserts . . . . . . . . . . . . . . 53 – 64
Schematic Notes . . . . . . . . . . . . . 53 – 54
Pin Layouts. . . . . . . . . . . . . . . . . . 53 – 54
Capacitor And Resistor Codes . . 53 – 54
Board Connections & Locations. 54 – 56
Waveforms. . . . . . . . . . . . . . . . . . 54 – 56
Main Board. . . . . . . . . . . . . . . . . . 57 – 60
CRT Socket . . . . . . . . . . . . . . . . . 61 – 62
Power and Deflection Board. . . . 61 – 62
Front Board . . . . . . . . . . . . . . . . . 63 – 64
Video Board . . . . . . . . . . . . . . . . . 63 – 64
HT30746, H3FLM, PRODUCT CODE 113000990
with a double "Z" is a registered trademark
Remote Control Digital
Color Television
D O L B Y
D I G I T A L
AS
FILE NO.
HT30746
ORIGINAL VERSION
Chassis No. 30746-00
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.

Specifications

Power Rating . . . . . . . . . . . . . . . . . . . . . 120V, 60Hz
140W (Avg), 2.5A (Max)
Antenna Input Impedance . . . . . . . . . . . . . . . . . 75Ω
Receiving Channel . . . . . . . . . . . . . . . . 2 - 13 (VHF),
01, 14 - 94, 95 - 125 (CATV)
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
Picture Tube . . . . . . . . . . . . . . . . W76QEN693X100
Semiconductors
Integrated Circuits . . . . . . . . . . . . . . . . . . . . . . . 23
Transistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Except within Tuners, RC Pre-Amp. & Digital Module
Cabinet Dimensions
Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 878 mm
Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . 573 mm
Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550 mm
REFERENCE No.
(U.S.A.)
(CANADA)
UHF/VHF/CATV
Digital
14 - 69 (UHF),
1 - 99 (Digital)
SM
780109