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PLASMA TV SERVICE MANUAL
We can separate plasma tv into parts of
•= Analog board: 11AN42Y
•= IR board: 11IR42Y
•= Digital board: 11DG42Y
•= Interface board: 11NEC42
•= Plasma display panel
•= Glass Filter
•= Mechanical parts: Chasis cover, back cover, front panel, IR box, and speaker
boxes
IR BOARD 11IR42Y
Ir board 11IR42Y is designed to place ir eye and two leds representing the
status of the TV.
ANALOG BOARD 11AN42Y
11AN42Y board is composed of 3 parts: Power part, IR part, Analog
part.
11AN42Y-Power Part
On the power part, the main voltages generated are (the followings are typical
voltages, you can see these voltages in detail in Adjustment part) :
Vs (Sustaining voltage)
Va (Addresing voltage)
Vaudio
Other voltages
12V and 5V dc are used on the analog and digital board in order to supply fans
and ICs. 3.3V dc is used to supply digital board ICs, which run with 3.3V.
5.1V dc is used to supply logic part (dsp, memory management, data driving,
multiplexing) of the plasma display panel.
: 180V dc
: 60V dc
: 30V dc
: 12, 5.1, 5, 3.3 V dc
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Summary of Contents for VESTEL PL2000
- Page 1 PLASMA TV SERVICE MANUAL We can separate plasma tv into parts of •= Analog board: 11AN42Y •= IR board: 11IR42Y •= Digital board: 11DG42Y •= Interface board: 11NEC42 •= Plasma display panel •= Glass Filter •= Mechanical parts: Chasis cover, back cover, front panel, IR box, and speaker boxes IR BOARD 11IR42Y Ir board 11IR42Y is designed to place ir eye and two leds representing the...
- Page 2 Vaudio (30V dc) is used for audio amplifier TDA 7262 for audio output power management. Vs and Va are used for plasma display panel. Vs is to sustain the picture (colors) on the screen and Va is to address the lines of the plasma display panel. Power part of 11AN42Y can be separated into parts of •= Stand-by power management, •= PFC management,...
- Page 3 •= Supply and driving of green and red leds: Leds are located on ir board •= TV on/off : Drives relay REL1 and TV turns on or off •= Helping Vrr voltage 11AN42Y- Analog Part Anolog part can be divided into 2 parts Video processsing, which is managed by VPC3215C-CIP3250A concept and Sound processing, which is managed by MSP3410D-TDA8752.
- Page 4 IC26 TPU3050, which is a teletext processor, is used as an RGB switch and teletext processor along with IC27 GM76C8128, which is a memory IC. TPU3050 switches RGB signals from scart and output of teletext information. Sound signals can be from IF box as sound IF and audio L, R signals from scarts and audio sockets for pc and s-video inputs.
- Page 5 OSD and menu managements are also carried out by this pld along with an osd sdram IC23. Main control of the TV is carried out by IC26 ST10R165 16-bit romless microcontroller along with a flash ram of size 4Mbit, IC27 M29F040. Main controller mainly manages analog board control and starts pld at the beginning.
- Page 6 Voltage Voltage 55+10xVra Ripple/Noise Vnrs Stability +/- 1.5 Setting accuracy +/- 0,5 Current (average) Current (instant) Logic Circuit Voltage Voltage Fixed 4,75 5,25 Ripple/Noise Vnrs mVp-p Current (average) Current (instant) 1. PDP unit will not operate under the following conditions. When in this condition, panel driver circuit current “Is”...
- Page 7 Voltage (Variable) Ripple/Noise Vnrr +/-500 Stability +/- 0.2 (average) Current Sequence conttrol high voltage to Vs and Va Voltage Enable (Fixed) level Disable level Ripple/Noise Vnrr +/-500 Stability +/- 0.2 (average) Current 1. Vrs is set at a value obtained from the following formula which is relative to Vs= 165+10xVrs [Vrs: 0 to 2.0V] 2.
- Page 8 If it NEC panel, If it NEC panel, If it NEC panel, If it NEC panel, 1. SUSTAIN POWER SUPPLY (Vs) 2. DATA POWER SUPPLY (Va) 3. LOGIC POWER SUPPLY...
- Page 13 C277 C249 R 2 3 C141 47pF 20Mhz25 100uF 47uF 470R Dalle NEC 110V Seul AMITEK 21, Rue Galilée 77420 CHAMPS sur MARNE Tél 01 64 73 95 70 Fax 01 64 73 95 58 amitek@worldnet.fr Title {Title} Size Document Number R e v {Doc} {RevCode}...
- Page 14 IC31 M A X2 0 2E C S E C259 C260 V C C C 1 + 100nF 100nF C258 P R 1 gnda 100nF C 2 + C261 C262 G N D 100nF 100nF R S O U T 1 TTLIN1 RSIN1 T T L O U T 1...
- Page 23 ANALOG ir_out ir_out R146 C256 C257 LTL-907PK 100nF 100nF 100nF 470uF 470uF gnda gnda MUX/GAMMA/OSD/HOST /pld_cs /sdi_oe /pld_cs /pld_cs bolt_power /cpu_ready sdi_error /cpu_ready /cpu_ready cpu_addr[0..18] cpu_addr[0..18] cpu_addr[0..18] cpu_addr[0..18] /debug_plug cpu_data[0..7] cpu_data[0..7] 22RX4 R117 pc_hsync cpu_data[0..7] cpu_data[0..7] dis_blue7 pc_vsync pld_data dis_red7 pc_h_pol pld_data pld_data...
- Page 24 VCC1 VCC2 VCC3 VCC4 1 2 u H 1 2 u H 5v_sdi C 2 8 8 C 2 8 9 C 2 9 0 C 2 9 1 C 2 8 5 C 2 8 6 C 2 8 7 1 0 u F 4 7 u F 1 0 u F...
- Page 25 WARNING: The pinout of this connector is the same than the FUJITSU panel. i.e. the pinout is different from the digital board display connector. Pins 1-34 are exchanged with pins 35-68. dis_red[0..7] dis_green[0..7] dis_blue[0..7] dis_vs dis_hs dis_clk To NEC plasma display From digital board 1 0 n F dis_red7...
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