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TX-28/25/21MD4 Service Manual
Safety
Service Support
Specifications Service and repair of
Block Diagrams
this product is
Parts List supported by
Panasonic's LUCI
Service interface.
Information

Adjustments This interface provides a
link between the TV and
Schematic Diagrams a standard PC to allow a
Self Check
number of diagnostic
and control functions to
Service Hints be performed.
Mechanical
View For more details contact
your local Panasonic
Disassembly company.

Location of PCB Views
Controls

Waveforms BACK EXIT

Supplementary Information
Audio Control

Power supply Video



BACK




E - Schematics H - Schematic
E - PCB Y - PCBs
Y - Schematics


BACK
BACK
ORDER No. SM-98017




Colour Television
TX-28MD4
TX-25MD4
TX-21MD4
EURO4 Chassis
SPECIFICATIONS
(Information in brackets { } refers to model TX-25MD4) AV2 IN Video (21 pin) 1V p-p 75
(Information in brackets [ ] refers to model TX-21MD4) Audio (21 pin) 500mV rms 10k
Power Source: 220-240V AC, 50Hz S-Video IN Y: 1V p-p 75
(21-pin) C:0.3V p-p 75
Power Consumption: 85W [71W]
AV2 OUT Video (21 pin) 1Vp-p 75
Aerial Impedance: 75 unbalanced, Coaxial Type Audio (21 pin) 500mV rms 1k
Selectable output (21 pin)
Stand-by Power AV3 IN Audio (RCAx2) 500mV rms 10k
Consumption: 1,8W Video (RCAx1) 1V p-p 75
Receiving System: PAL I, PAL 525/60
High Voltage: 28,5kV