Specifications

Circuit Descriptions, List of Abbreviations, and IC Data Sheets
EN 81DPTV585 AA 9.
9. Circuit Descriptions, List of Abbreviations, and IC Data Sheets
Index of this chapter:
9.1 Introduction
9.2 Power Supplies
9.3 Video
9.4 Audio
9.5 Control/OSD
9.6 List of Abbreviations
9.7 IC Data Sheets
9.1 Introduction
This new chassis is being introduced for the Nafta region (USA
and Canada) in 2005/2006 model year. The table below lists
the Model and Chassis numbers.
Table 9-1 Model and chassis overview
This chassis is derived from a previous introduced chassis but
is prepared for ATSC reception. The chassis has NTSC and
ATSC tuning capability. The digital broadcast formats it tunes
are 8VSB and QAM. The set has the capability of displaying the
1080i, 480p, 480i and 720p high definition component
analogue inputs. All are converted and displayed as 1080i. The
1fH RF inputs can be NTSC. The 1fH AV inputs can be YPbPr-
component, composite, or SVHS and are diplayed as 480p.
Some of the highlights are:
• TV-off air systems (NTSC).
• NTSC (3.58 - 4.5 MHz).
• HD signal inputs are analogue.
• Component in.
• ATSC digital in (8VSB and QAM).
The sets have 1fH multi-system composite, SVHS, and
component inputs. The External 1fH or TV RF signals are fed
to the Picnic and Eagle circuits, where the user can select
between 100 Hz Digital Scan or Double lines.
External input systems:
• NTSC 3.58 MHz
• 480p, 480i, 1080i, 720p component input
All of the sets, based on the PEMG and have a 16x9 aspect
ratio. There are eight different scan modes with each requiring
separate geometry and convergence settings. Each of the
modes has separate geometry and convergence data, stored
in the NVM, located on the ACS (Automatic Convergence
System) module.
Sound System processing is performed on the SSB (Small
Signal Board). This is a multi-system sound decoding
processor. The audio amplifier is located on the SSM (Small
Signal Module). This is a digital amplifier; 10 Watt (2 x 5 Watts)
for the 51” and 20 Watt (2 x 10 Watts) for the 60”. There is also
a Headphone output, located on the Side Jack Panel. The
headphone amplifier is located on the SSM.
Sound system:
• 51”: 10 W (2x5W) Audio.
• 60”: 20 W (2x10W) Audio.
• Headphone Out.
• Speaker "on"/Off.
9.2 Power Supplies
The Rectifiers and Standby Supplies are located on the AC
Input Panel. The Main Power Supply is located on the Large
Signal Board (LSB).
In the table below, the models are listed with their respective
voltage requirements. Auto Multi Voltage sets have a voltage
range of 90 to 140 V.
Table 9-2 Voltage range overview
9.2.1 Overall Power Supply Block
Figure 9-1 Power supply block diagram
The bridge rectifiers and Standby supply are located on the AC
Input Panel. The Main Power supply is located on the Large
Signal panel. A mains switch switches the AC power to the
bridge rectifier, located on the AC Input panel. This switch must
be turned "on", to place the set in the Standby mode. The
Standby supply produces a +5 Volt standby voltage. In the
Standby mode, the set consumes less than 1 W of power.
When the set is turned "on", the microprocessor on the SSB
causes the STANDBY line to go "low", switching the Standby
supply to produce +15 V, +9 V, and +5.2 V sources. It also turns
the Main Power supply "on", which produces the Audio, +35, -
35, +22, -22, +130 V_S, and +130 V_HV supplies. The +130
V_S supply is for the Horizontal Output section. The +130
V_HV supplies power to the High Voltage section.
Model Chassis
Aspect Ratio
Destination
51MP6100D/37 DPTV585
16x9
USA/Canada
51PP9100D/37 DPTV585
16x9
USA/Canada
60PP9100D/37 DPTV585
16x9
USA/Canada
Model Voltage Range
51MP6100D/37 90 - 140V nominal 110 V
51PP9100D/37 90 - 140V nominal 110 V
60PP9100D/37 90 - 140V nominal 110 V
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