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SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL
PT-90 NEAT CHASSIS
Modification reserved
PT 90 NEAT Service Manual
CONTENTS
PAGE
Assembling/Disassembling Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1. Technical Specs. Connectors and Chassis Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. Safety Instructions and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 3. Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 4. Supply Voltage Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 5. I-C Bus Interconnection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 6. Fault Tracing Diag. for Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 7. Chassis Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 8. Service Menu And Basic Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 8.1 Option Bytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 8.2 Geometry Adj. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 8.3 G2 Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 8.4 Video . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 8.5 Tune / IF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 8.6 Hotel Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 8.7 System Voltage Adj. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 . . . . . . . . . . . . . . . . . . . .17 9. DVD Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 9.1 Safety And Handling Precautions 9.2 Mech. And Elec. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
10. Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 TV Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 DVD Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 11. Description Of Ics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 TV Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 DVD Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
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PT 90 NEAT Service Manual
ASSEMBLING / DISASSEMBLING PROCEDURE
Disassembly procedure is explained as below. Before disassembling the TV set please read the safety instructions and warning parts of the service manual. · Turn off TV and plug the mains out · Remove screws (6 pieces) to dismount the back cover · Remove 2 connection cables between chassis and back cover. Front AV and lineout sockets should be disconnected. · Cut the tie, which fixes DVD cables together. · Disconnect the following sockets to take the chassis out ; Loader, IR receiver Deflection cable Degaussing coil Speaker cable Power cable · Remove the ground cable localised between tube module, chassis and mass cable. · Remove the CRT drive module from picture tube. · Desolder the ground cable of loader from tuner. · Remove anode cable localised on the picture tube. · Slide out the chassis through the guides (no screws, straps or other fixing). CRT drive module must be grounded via mass cable. Grounding must be completed between loader and chassis via soldering cable between tuner and loader. Front AV must be connected to SS05 and line out should be connected to SS09 via 9P and 5P sockets, respectively. · Place the back cover back to its place.(6 screws) · Plug the mains in. · Turn on the TV. Grounding must be completed between loader and chassis via soldering cable between tuner and loader. Front AV must be connected to SS05 and line out should be connected to SS09 via 9P and 5P sockets, respectively. · Place the back cover back to its place.(6 screws) · Plug the mains in. · Turn on the TV.
Please follow the assembly instructions explained below;
· Be sure that all of the loader cables are free. If necessary fix the cables firmly to avoid any kind of squeezing while inserting the chassis back. · Before inserting the chassis into guides, check the control buttons in front of the chassis. In case of misplacement of control buttons place them into correct position. · Slide the chassis into guides until the connection cables could be reached to their sockets. · Plug in the sockets coming from led PCB, 5P to KL01 and 4P to KL02 · Plug in the sockets coming from loader, 4P to SS03, 6P to SS13 and 12P (blue one pointing to right) to SS18. · Plug in the power cable socket to AC01. · Plug in the degauss cable socket to KP02. · Plug in the speaker cable socket to HS03. · Place the CRT drive module on picture tube. · Slide the chassis completely on its place. Be careful about control buttons. · Plug in the deflection cable socket 4P to KD01 and 2P to SD21. · Place the anode cable to picture tube. Be careful about high voltage!
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PT 90 NEAT Service Manual
1. TECHNICAL SPECIFICATIONS, CONNECTIONS AND CHASSIS OVERVIEW
1.1. Technical Specifications
1.1.1 Reception
Tuning System Color Systems Sound Systems A/V Connections Channel Selections IF Frequency : : : : : : PLL PAL SECAM NTSC B/G D/K L/L' SCART AND FRONT AV AIR, CABLE : The entire band via frequency search B/G, D/K, L : 38.9 MHZ L': 33.4 I: 39.5MHZ : 75 OHM
Aerial Input
1.1.2 Miscellaneous
Audio Output (RMS) Mains Voltage Mains Frequency Ambient Temperature Maximum Humidity Power Consumption Standby Power Consumption : 2 x 2.5 W : 220-240 V (± 10 %) : 50/60 Hz (± 5 %) : : : 50 W :4W
1.2 Connections
A/LA/R PCM
EURO AV
Rear Connections
VIDEO L AUDIO R
Side Connection
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PT 90 NEAT Service Manual
EURO SCART
I- Audio output 1. right channel 0.5 VRMS/10k 0 7- RGB input, blue (B) 8- Switch signal video (status) 9- GND 10- Reserved for clock signals (not connected) 11- RGB input, green (G) 12- Reserved for remote control (not connected) 13- GND 14- GND switch signal RGB 15- RGB input, red (R) 16- Switch signal RGB 17- GND (video) 18- GND19- Video output 1 Vpp/75 ohm 20- Video input 1 Vpp/75 ohm 21- Shield
1
3
5
7
9
11 13 15 17 19 21
2
4
6
8 10 12 14 16 18 20
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PT 90 NEAT Service Manual
14 NEAT CTV 001
CHASSIS OVERVIEW
1- FRONT CABINET 002 2- PICTURE TUBE 3- PICTURE TUBE SCREW 4- SPEAKER 5- SPEAKER SCREW 6- DVD DRIVER 7- DVD DRIVER SCREW 8- EJECT BUTTON 001 9- EJECT BUTTON 001 SCREW 10- MULTIBUTON LEFT 11- MULTIBUTON LEFT SCREW 12- MULTIBUTON RIGHT 13- MULTIBUTON RIGHT SCREW 14- ON-OFF BUTON 15- ACYRILIC WINDOW 001 16- INFRA LED PCB 17- INFRA LED PCB SCREW 18- REFLECTOR 19- REFLECTOR SCREW 20- DVD HEAD 21- CHASSIS RAIL RIGHT 22- CHASSIS RAIL LEFT 23- MAIN CHASSIS 24- BACKCOVER 25- BACKCOVER SCREW 26- STYROPHOR
14 NEAT CTV 002
1- FRONT CABINET 002 2- PICTURE TUBE 3- PICTURE TUBE SCREW 4- SPEAKER 5- SPEAKER SCREW 6- DVD DRIVER 7- DVD DRIVER SCREW 8- EJECT BUTTON 9- EJECT BUTTON SCREW 10- MULTIBUTON LEFT 11- MULTIBUTON LEFT SCREW 12- MULTIBUTON RIGHT 13- MULTIBUTON RIGHT SCREW 14- ON-OFF BUTON 15- ACYRILIC WINDOW 002 16- INFRA LED PCB 17- INFRA LED PCB SCREW 18- REFLECTOR 19- REFLECTOR SCREW 20- DVD HEAD 21- CHASSIS RAIL RIGHT 22- CHASSIS RAIL LEFT 23- MAIN CHASSIS 24- BACKCOVER 25- BACKCOVER SCREW 26- STYROPHOR 27- AVPCB 28- AVPCB HOLDER
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PT 90 NEAT Service Manual
KEYBOARD
All the keys on the keyboard are used same as the relevant keys on the RC. But navigation in menus is quite different. In order to open Main Menu from keyboard V+ and V- keys must be pressed together. After displaying the menus P+ and P- keys will be used as Navigation Up and Navigation Down keys. There is no enter key on the keyboard so V+ or V- will be used as Menu Right key if a submenu item is highlighted on the menu. These two keys will also be used as Navigation Left and Navigation Right keys in order to change any highlighted options right side value. To return previous menu V+ and V- keys should be pressed together.
2. SAFETY INSTRUCTIONS AND WARNINGS
SAFETY INSTRUCTIONS FOR SERVICE REPAIRS
1. Use only the original spare parts with the same specifications for replacement. 2. Only the original fuse value should be used. 3. Safety components, indicated by the symbol, should be replaced by components identical to the original ones. 4. Main leads and connecting leads should be checked for external damage before connection. Insulation must be checked. 5. Parts contributing to the safety of the product must not be damaged or obviously unsuitable. This is valid especially for insulators and insulating parts. 6. Thermally loaded solder pads are to be sucked off and re-soldered. 7. Ensure that the ventilation slots are not obstructed. 8. Potentials as high as 25 KV are present when this receiver is operating. Operation of the receiver outside the cabinet or with back cover removed involve a shock hazard from the receiver. 9. Servicing should not be attempted by anyone who is not thoroughly familiar with precautions necessary when working on high voltage equipment. Perfectly discharge the high potential of the picture tube before handling it. The picture tube is highly evacuated and if broken. Glass fragments will be violently expelled. Always discharge the picture tube anode to the receiver chassis to keep of the shock hazard before removing the anode cap. 10. Keep wire away from the high voltage or high temperature components. 11. When replacing a wattage resistor, keep the resistor 10mm away from the circuit board. 12. Fast heating up (e.g. by bringing the Combi from a cold place into warm and humid room) can result in moisture condensing on the pickup lens of the DVD Module, thus influencing the playability for a certain time. Before checking the performance, the DVD Loader should be stabilized for at least 4 hours. 13. Never try to repair DVD module when it is ON. The 8 laser beam is highly dangerous and it may cause permanent damages.
HANDLING THE MOS CHIP COMPONENTS
MOS circuit requires special attention with regard to static charges. Static charges may occur with any highly insulated plastics and can be transferred to persons wearing clothes and shoes made of synthetic materials. Protective circuits on the inputs and outputs of MOS circuits give protection to a limited extend only due to time of reaction. Please observe the following instructions to protect the components against ESD. 1. Keep MOS components in conductive package until they are used. Most components must never be stored in styropor materials or plastic magazines. 2. Personnel must not touch the MOS components to avoid electrostatic discharging. 3. Hold the component by the body touching the terminals. 4. Use only grounded instruments for testing and processing purposes. 5. Remove or connect MOS Ics when operating voltage is disconnected. 6. Personnel in charge must make sure that they are connected with the same potential as the mass of the set by a wristband with resistance.
X-RAY RADIATION PRECAUTION
1. Excessive high voltage can produce potentially hazardous X-RAY radiation. To avoid such hazard, the high voltage must not be above the specified limit. The nominal value of the high voltage of this receiver is 25KV at zero beam current (minimum brightness) under 220 V AC power source. The high voltage must not under any circumstance, exceed 30KV. It is recommended the reading of the high voltage to be recorded as a part of the service record. It is important to use an accurate and reliable high voltage meter. 2. The primary source of X-RAY radiation in the TV receiver is the picture tube. For continued X-RAY radiation protection, the replacement tube must be exactly the same type tube as specified in the part list.
A1 TUNER
IA01 TDA7057
A2 VIDEO PEOCESSOR A7 CONTROLLER
AUDOUT A8 1
ST92195/921 8 56 KEYB 1 1 8
A8 AUDIO AMPLIFIER
11 1 ICV1 1/A4 1/A13 52 SDA A751 SCL A7 2/A1 2/A42 VOL 42 DVD SB 3
IA03
5
STV2246/47/ 55
10
4
CLI 1
MUTE_DVD A810/A81/A101 11 1 IC01
L/L 8
5
SD1/A23 49 HEATER A61/A77 12 2 1MN405
3B
IF1
A5/A152 -
IF1
7
A5/A156 L/L
AUDOUT A2 1
4
CL
8
A82 A2 5 15 41 MUTE_DVD A810/A10 1/A7 1 1 2 L DVD A102 40 HEATER A27/A61
I060 LM358
A4 2/A22 8 48
IF2 4 HOUT A 2 TV/DVD B OSD
13 43
1
1
VOL 1
11 47
AGC VERT 1 V_OSD A1 BCL
G OSD
13 44
1
3. BLOCK DIAGRAM
12
AV STATUS A31 46
6 R_DVD A10 3 7
SC_IN 2
14
A63 A24
16
SC_I
A2 2
FBEXT
A25
CVBS
A23
A3 SCART
CVBSOUT R OSD
20 25 33 26 19 34 27 25 35 36 37 42
CVBS
A2 3 17
A3 V_AMP FB_OSD A710 R_OSD A3 G_OSD
SCL A22/A42/A12 SDA A21/A41/A11 FB_OSD A210/A75 18 CVBSOUT A26
A76
3
13
7
CV BSEXT A34
A2 -
2
4
6
8
17 11 21 15 19 5 9 20 16 14 18 12 10
SCART1 SS01
B8
9
A74 A75 A5 28 34
A9 VERTICAL
ID41 TDA177
AV_STATUS A2 1
B
A8
CLI
A1
G
A2 7 -
R
A2 6
G
7
R6 B_OSD
FB_OSD A7 5/A210 2 3
A11 KEYBOARD
A4
4
FBEXT
IC02 VERT A2-1
SDA
5
A 7 -1/A2 -1/A11 -
24C08
SCL
6
A 1 -2/A2 -2/A72 V_OSD A7-1 V_AMP A2 -2
KEYB
A71
A5 POWER SUPPLY WP0 110 16
A6 HORIZONTAL
FBT 1
2
IP01
14
A10 AV INTERFACE CONN.
SS08 12 14 15 16 18
3
TDA16846
5
BCL A23
8
11
AC IN
5 12V 8
4
HOUT A22 9 HEATER
3
24 V 12 V
PT 90 NEAT Service Manual
CVBS_DVD A85
DOUT MUTE L DVD R DVD A8- _DVD A7- A84 2 A83 1/A8 1
A5 POWER SUPPLY
A2
8V LV07 SA02 5V
LV01 12 LV03 17
DV23
1 2 53 25
DV22 VIDEO PROC. STV2246/47/48
PT 90 NEAT Service Manual
5V LV01 LV01
45
26
DV21
27
DV20
8V
28
8V
A8
RA11
16 IA03 MN4 053
+12V TO RA10
11
8V
RS58
4. SUPPLY VOLTAGE DIAGRAM
10
TV01 RV03
A1
33V
T003 2 ST92195/92185
A6 A7
9
A3
8V
SS05 7
FBT
RD15
RD12
RV06
110V LT01 5V RT03
3
1
8
R002
4
24V
8V
5V
19
TUNER
R011 R010
56
R008
5V
3 12 R007 13 55
R057
16V
2
3
12V
5V
54
D005
8V TO SS05/4
RT01 1 5V
R032 14 R012 19 R013 20 46 45
D004
5V
R080 R081 R052 R028
A9
12 DV10 RV54 14
A10
5V
12VDVD 5VDVD
RA09
8V
43 41
D002
5V
21 40
9
24V
TDA1 8 771
SS08
5V 5VD
D001
RD45
7
RD44
RD56
4
5V
RV57 TV05
A4
EEPROM 8 1
25
39 34
5VA 5VA
C011 26 33 31
RD28
RD40
5VA
T001
1
12V 5V
8V
5VA
A1
A2
A4
A7
+5V
TUNER R013 SDA SDA SDA R012 SDA
5
SDA
RT
RV34 SCL RV33 R048 51 52 6 5 SCL
R049 SCL SCL
5. I2 BUS INTERCONNECTION DIAGRAM
11
EEPROM VIDEO PROC.
4
SCL
RT
20
19
u-CONTROLLER
PT 90 NEAT Service Manual
PT 90 NEAT Service Manual
6. FAULT TRACING DIAGRAM-POWER SUPPLY
Switched mode power supply defective, +110V is missing or level is wrong
DP01 - 04 CP01 - 04 CP06, TP01
YES
Fuse F1 defective
NO RP 07, RP 05 open and short circuit
NO
Voltage at drain TP 01
YES
Voltage at IP01 PIN 11 < 1V
RP 06
YES
NO YES
RP 11, DP 07
Start-up voltage (6) PIN 14 < 8V
NO
TP 01
YES
Start-up voltage varies ca. 8V
NO
IP 01
Measure
VAP 1, RP 03
NO
+115V adjustable with VAP 01
YES
Control range of switched-mode power supply
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PT 90 NEAT Service Manual
7. CHASSIS DIAGRAM
FRONT AV
TDA 7057 PLL TUNER
2 X 2W
BU508D
H.YOKE
SCART
STV224X
AUDIO CVBS
DVD BOARD
TDA1771
+5V +110V +12V +16V
RGB
V.YOKE
ST92195
DVD LOADER 24C08
POWER
RC
IR
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PT 90 NEAT Service Manual
8.
SERVICE MENU AND BASIC ADJUSTMENTS
SERVICE MODE IS ACTIVED BY PRESSING THE DIGIT 1923 AT FEATURES MENU
8.1
OPTION BYTES
MODEL CONFIGURATION
0: 0: 0: 0: 0: 0: not available APR OFF Pin 8 16:9 switching mode not used Keyboard without menu Brightness full range available
OPTION 1:
b0: b1: b2: b3: b4: b5: b6:7
1: L Avaialable 1: APR ON 1: no Pin 8 16:9 switching mode 1: Turn on with AV button 1: Keyboard with menu 1: Brightness half range available Main Tuner 00 : Samsung 01 : Temic 10 : Philips UV1316 11 : Thomson/Orega
OPTION 2:
b0: b1: b2: b3 b4: b5: b6: b7: b0: b1: b2: b3: b4: b5: b6: b7:
FEATURE CONFIGURATION
0: 0: 0: 0: 0: 0: 0: 0: not available not available Volume Logaritmic not available DVD picture in RGB mode not available Subwoofer available 16/9 Picture tube
1: AV2 mode available 1: SVHS mode available 1: Volume linear 1: Search mono audio ident available 1: DVD picture in SVHS mode 1: Headphone available 1: No Subwoofer 1: 4/3 Picture tube
OPTION 3:
VIDEO/AUDIO FEATURE CONFIGURATION
1: One Crystal application (4.43 Mhz) 0:Two cystal application (for NTSC playback) 1: Intercarrier application 0: QSS application 1: STV2248E 0: Normal video IC 1: OSD contrast control ON 0: OSD contrast control OFF 1: Blue screen enable 0: disable 1: AVC Automatic Volume Correction (MSP Stereo) AVL(Mono 22XX) 0: not available 1: DVD available 0: not available 1: Standby after power on 0: No Standby after power on
Reserved bits must be set to 0 You will need following equipments to carry out the adjustment procedures; a- PLL Pattern generator for Secam L' b- PLL Pattern generator PAL BG c- Patern generator for white pattern d- Color Analyzer (CA100)
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PT 90 NEAT Service Manual
8.2 GEOMETRY ADJUSTMENT
a. V.S b. V.S c. V.S d. V.S e. V.P f. H.P 4/3 50H 16/9 50H 4/3 60H 16/9 60H
· Enter service menu and select the GEOMETRY settings · Standart geometrical adjustments carried out by V.S, V.P and H.P settings. V.S 16/9 50h setting have to be carried out until 3 cm distance between upper and lower parts of the screen. · Same adjustments for 60H for 16/9 and 4/3. · Press menu button to leave service menu Menu button to leave service menu.
8.3 G2 ADJUST > : <
increase normal decrease Enter the G2 menu in the service mode Turn the G2 potentiometer on FBT until you reach the : sign < indicator means to decrease > indicator means to increase
8.4 VIDEO
1 2 3 4 5 RED GREEN BLUE RED COFF GREEN COFF
· Apply Dark gray pattern (at 10 IRE) · Contrast 70%, brightness middle, color saturation middle. · By changing the R COF and G COF Adjust to obtain the necessary values for x and y. · Apply white pattern (at 100 IRE) · Set the contrast to 70%, brightness and color saturation to middle. · Place the color analyzer. · (R,G,B), it is possible to modify the peak white. · Adjust to obtain the necessary values for x and y. Remark: It may be necessary after low light alignment to check and to re-align the high light and to repeat several times the procedure to obtain good alignment for both low and high light.
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PT 90 NEAT Service Manual
8.5 TUNER/ IF
1. 2. 3. 4. 5. AGC PC PF P C.L' P F.L'
PIF adjustment for BG/DK/L systems: · 38.9 MHz PAL BG signal applied Tuner via tuner output (IF output). · Leave the channel settings menu and enter service menu. Enter TUNER IF menu in the service mode. Choose the PIF COARSE and PIF FINE item and adjust the setting until the : indicator (displayed as > : <) turns in red color by pressing < and > on remote control. · Press Menu button to leave service menu. PIF adjustment for L' system: · 33.9 MHz SECAM L' signal applied Tuner via tuner output. · Leave the channel settings menu and enter service menu. Enter TUNE IF menu in the service mode. Choose the PIF COARSE L' and PIF FINE L' item and adjust the setting until the: indicator (displayed as > : < ) turns in red color by pressing < and > on remote control. · Press Menu button to leave service menu.
8.6 HOTEL MODE
Installation and Child Lock Menus are omitted in Hotel Mode. You can not search any channel when the Hotel Mode is activated. Volume level cannot be increased higher then certain level in Hotel Mode. The volume limiting level is a predefined value in service menu. Hotel mode activated from service menu.
8.7 SYSTEM VOLTAGE ADJUSTMENT
· Switch the TV in AV mode by pressing AV button on remote control unit. (Minimum beam current condition) · Adjust the VAP2 potentiometer until 110Vdc measured on cathode pin of DP08 diode.
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PT 90 NEAT Service Manual
9. DVD MODULE
9.1 SAFETY AND HANDLING PRECAUTIONS
1. DO NOT use and store the Loader in dusty, high temperature or high humidity environments. 2. To avoid damage to the Loader by electrostatic dischargers, measuring equipment and operators should be grounded during handling. The user of this unit takes all necessary precautions to avoid ESD (Electro-Static Discharge) failures during handling and assembly of this unit into the end product. 3. Contamination of the PCB might influence the performance. Avoid fingerprints and stains on the PCB and handle the Loader in a clean environment. 4. The mechanism of the Loader has been adjusted carefully during manufacturing. High shocks on this unit may damage and should be avoided. 5. Fast heating (e.g. by bringing the Loader unit from a cold place into a warm and humid room) can result in moisture condensing on the pickup lens, thus influencing the playability for a certain time. Before checking the performance the Loader unit should be stabilized for at least 4 hours. 6. DO NOT disamble the loader to avoid ESD failures and to prevent from contamination. AC Source Supply: The Voltage Fluctuation : 110/220 V ± 10% tolerance The Impulse Noise : 110/220 V ± 10% tolerance
Applicable Discs Format Disc Type DVD-5 (Single Layer) DVD-9 (Double Layer) DVD-10 (Single Layer Double Side) DVD-18 (Double Layer Double Side) Disc Format IS09660 RED BOOK (CD-DA) WHITE BOOK (Video-CD) BLUE BOOK (CD Extra) YELLOW BOOK (CD-ROM) ORANGE BOOK (CD-RW, R) 4.70 GB 8.54 GB 9.40 GB 17.0 GB 656 MB (Mode 1) 748 MB (Mode 2) 12 cm/8 cm 1.2 mm 15 mm 0.74 µm, DVD Description IS09660 UDE DVD BOOK
CD
Disc Capacity
DVD-5 DVD-9 DVD-10 DVD-18 CD DVD/CD
Disc Diameter Disc Thickness Disc center Aperture Track Gap
1.6 µm, CD
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PT 90 NEAT Service Manual
Functions Data Transfer Rate: DVD 2600kB/sec (max) CD 870kB/sec (max) Data Buffer Capacity 256KB (DVD/CD) Error Rate 10e -15 MAX (DVD), 10e -12 MAX (CD) Reading Time Starting procedure (Less than 15seconds) Stopping procedure (Less than 2 Seconds)
Laser Specifications DVD 650-665nm 0.5mW Lens Length of Ray Coil 0.6mm Moving Range 1.71mm CD 790+20nm 0.7mW Non-spherical lens 0.47mm 1.35mm Astigmatism Three spot tracking
Laser wavelength Laser power Object lens
Focus Searching
Phase difference detection
Disc Loading Mode Motor- driven front-loading tray Disc Fixing Beam magnetic fixation Reliability Mean Time Between Failure (MTBF): Not less than 2,000 hours Mean Time To Repair (MTTR): 0.5 hours Working Environment Temperature and Humidity Operating temperature 5 to 45 Storage temperature - 20 to 60 Operating temperature varying 11/hour(max) Storage temperature varying 20/hour(max) Operating humidity 10% to 70% Storage humidity 5% to 80% Vibration Reading data state 0.2g 10-30Hz sine wave Playing CD audio state 0.15g 10-30Hz random Standby 2.4g 10-30Hz random Striking Standby state 100kg 6ms half sine-wave (in X,Y and Z directions) Noise Not more than 45dB in one meter away
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PT 90 NEAT Service Manual
9.2 MECHANICAL AND ELECTRICAL 1. CONNECTORS
Integrated Connectors
1. 2. 3. 4. 5. DC power jack IDE interface Master/slave mode jumper set (not applicable as the loader configured for player) Analog audio output (not applicable as the loader configured for player) Digital Audio output (not applicable as the loader configured for player)
Pin Definitions ITEM
Power Jack PIN NO. 1 2 DESCRIPTION +12V GND GND +5V
DC Power Jack
3 4
ATAPI Interface Signal CSIEXCS3EXDA0 DA1 37 38 35 33 Pin No. I I I I Pin Type Description Driver Chip Select 0 Driver Chip Select 1 Driver Address Bus-Bit 0 Driver Address Bus-Bit 1
19
PT 90 NEAT Service Manual
DA2 DASPDD0 DD1 DD2 DD3 DD4 DD5 DD6 DD7 DD8 DD9 DD10 DD11 DD12 DD13 DD14 DD15 DIOR DIOWDMACKDMARQINTRQ IOCS16 IORDY PDIAGRESETCSEL KEYPIN
36 39 17 15 13 11 9 7 5 3 4 6 8 10 12 14 16 18 25 23 29 21 31 32 27 34 1 28 20
I I /O I /O I /O I /O I /O I /O I /O I /O I /O I /O I /O I /O I /O I /O I /O I /O I /O I I I O O O O I/ O I
Driver Address Bus-Bit 2 Driver Activity/Driver I Present Driver Data Bus-bit 0 Driver Data Bus-bit 1 Driver Data Bus-bit 2 Driver Data Bus-bit 3 Driver Data Bus-bit 4 Driver Data Bus-bit 5 Driver Data Bus-bit 6 Driver Data Bus-bit 7 Driver Data Bus-bit 8 Driver Data Bus-bit 9 Driver Data Bus-bit 10 Driver Data Bus-bit 11 Driver Data Bus-bit 12 Driver Data Bus-bit 13 Driver Data Bus-bit 14 Driver Data Bus-bit 15 Driver I/O Read Driver I/O Write DMA Acknowledge Driver Request Driver 16Bit I/O Driver Interrupt I/O Channel Ready Passed Diagnostics Driver Reset Cable Select Keying Pin on Interface Connector
20
PT 90 NEAT Service Manual
2. KEY COMPONENTS
Items Model No. Spindle Motor CCM03-042R1-2 Loading Motor FC8A30T28_4A DM2429A Sled Motor FC8A30T18_2 DM2428 Laser Pick-up PVR-520T-HR-0101 Actuator Drive BA5954FP Loading Motor Drive BA6287F RF Amp. SP3721A Servo DSP M5705 Maker MORETECH SANKO TRICORE SANKO TRICORE MISTSUMI Rohm Rohm TI ALI Location China China Taiwan China Taiwan Japan Japan Japan U.S.A Taiwan
3. MECHANICAL DIMENSIONS
21
PT 90 NEAT Service Manual
10- BLOCK DIAGRAMS
TV CHASSIS
A 1 TUNER
22
PT 90 NEAT Service Manual
A 2 VIDEO PROCESSOR
D2
D1
D5 D4 D3
PT 90 NEAT Service Manual
A 3 SCART
A 4 EEPROM
24
PT 90 NEAT Service Manual
A 5 POWER SUPPLY
25
E1
PT 90 NEAT Service Manual
A 6 HORIZONTAL
F2
F1
26
PT 90 NEAT Service Manual
A 7 MICRO CONTROLLER
G2 G1
27
PT 90 NEAT Service Manual
A 8 AUDIO AMPLIFIER
28
PT 90 NEAT Service Manual
H1
H2
A 9 VERTICAL
A10 AV INTERFACE CONNECTOR
29
PT 90 NEAT Service Manual
A 11 KEYBOARD
A 12 FRONT AV
30
PT 90 NEAT Service Manual
A13 LINE OUT
A14 TUBE MODULE
31
PT 90 NEAT Service Manual
A 15 IR MODULE
32
R201 PLLGND 100K R203 51K 3.3V 4K7 RA[0..9] 6,7 0.1U 0.1U 0.1U 0.1U 0.1U RN21 RA9 RA8 RA6 RA5 RA4 RA0 RA1 RA2 RA3 RA7 RA[0..9] BC21 BC22 BC23 BC24 BC25 3.3V 3.3V 3.3V 3.3V C202 R204 0.01U C203 18P R205 R230 R206 SRN33 RD[0..15] RD[0..15] 7 10K R 5K1 1 3 5 7 ROEJ 7 RCASJ 7 RRASJ 7 RWEJ 7 2 4 6 8
TC21 220U/16V
PLLVCC
C201 0.1U
PLLGND
R234R207C208 AWRC 47K R 10K Default R 47K 0.1U
TC22 47U/16V
3.3V
C204 0.1U
3.3V PLCK SLRF
RFVCC VC2 RD11 RD4 RD10 RD5 RD9 RD6 RD8 RD7
RFVCC
RFVCC
PLLGND
C207 0.1U
BC28 PLLVCC PLLGND 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 XSAWRCVCO XSVREFO XSPDOFTR1 XSVR_PLL XSFTROPI XSFDO AVSS_PL XSPLLFTR2 AVDD5_PL XSFDIREF XSPDIREF GND XTSLRF XTPLCK VDD_3.3 XRA3 XRA2 XRA1 XRA0 XRA4 XRA5 XRA6 GND XRA7 XRA10 XRA11 VDD_3.3 XRA8 XRA9 XROEJ VDD_3.3 XRCASJ XRRASJ XRSDCLK XRWEJ XRD7 XRD8 XRD6 GND XRD9 XRD5 XRD10 XRD4 XRD11
BC27
BC26
C205 0.1U C206 47P C208 0.1U R207 47K
0.1U
0.1U
0.1U
PLLGND
R234
R
RFGND U21
RFGND
RFGND
2,4 MVREF2
R231
R
2
RFO
RFO
C209 1000P
RFGND
4 TRAY_CNTL
R235
R
R208 RD3 RD12
C210
20K
C211
C
RFGND
6800P R209
RFVCC
51K
D21
3.3V
1N4148
TRAY_CNTL
RD2 RD13 RD1 RD14 RD0 RD15
XHD[0..15]
XHD[0..15] 6
2
1
2 EFGC 4 SFOCUS 4 STRACK 4 SSLEG 4 SMOTOR
R210 R211 R212 R213 R214
3K3 3K3 3K3 3K3 10K
FOCUS TRACK SLEG MOTOR
R228
0
XHD7 XHD8 XHD6 XHD9 XHD5 XHD10 XHD4 XHD11 3.3V 3.3V XHD3 XHD12 XHD2 XHD13
C212
C213
C214 C215
2 RFRP 2 MIRR C216
VC2
45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88
4 SFGIN 4 SSPDON INSW LED1 R237 3.3V 0 10 R R226 R227
XSFGIN XSPDON RFGND
R
XMP1_3 XMFSCSJ XMP1_2 XGPIO2 XMP1_1 XHRSTJ XGPIO1 XGPIO0 XCRSTJ XMPSENJ VDD_3.3 XMALE XMP1_0 VDD_3.3 XOSC1 XOCS2 GND XMD0 XMD1 XMD2 XMD3 XMD4 XMD5 XMD6 XMD7 XMCSJ XMRDJ XMWRJ XMINT1J XMA11 XMA10 VDD_3.3 XMA9 XMA8 XMA7 XMA6 XMA5 XMA4 XMA3 XMA2 XMA1 XMA0 XMA12 GND
33
MA10 MA11 MA12 MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MD7 MD6 MD5 MD4 MD3 MD2 MD1 MD0 MWRJ 5 VCC L21 L C223 12P R229 C224 C Y21 33.8688MHz C225 12P 100K TXD TP RXD TP MD[0..7] 1 2 3 4 J21 VCC TX RX GND RS232 MD[0..7] 5
2,4 MVREF2
RFGND ALi M5705
0.47U
0.047U
470P 470P 1000P C217 0.1U R215 47K
R216
0
R217
R
SAEI
2
TEXI
2 2
TEI FEI
R218 R219
3K3 4K7
C218 0.1U
SSBAD
XHD1 XHD14 XHD0 XHD15
C219 C220 1000P 1000P
DFCT XSCSJ XSCLK XSDATA
2
SAE
R220
5K1
SAEI
C221
0.1U
XSFGIN XSPDON FLAG3 FLAG2 FLAG1 FLAG0
DVD MODULE
RFGND
6
2 SBAD 2 SDFCT
SSBAD DFCT
BIT1 MP1_
HDRQ 6 IOWJ 6 IORJ 6 IORDY 6 HDACKJ 6 HINTJ 6 HCS16J 6 HA1 6 HPDIAGJ 6 HA0 6 HA2 6 HCS1J 6 HCS3J 6 HDASPJ 6
2 SCSJ 2 SCLK 2 SDATA
R221 R222 R223
33 33 33
XSCSJ XSCLK XSDATA
4 OUTSW
OUTSW
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 AVSS_DS XSRFIN XSIPIN AVDD5-DS XSDSSLV XSRSLINT VDD-3.3 XSAWRC XSRFGC XSEFGC XSFOCUS XSTRACK XSSLEG AVDD5-DA XSMOTOR AVSS-DA XSRFRPLP XSTELP XSVREF2 XSRFRP XSTEXI AVSS-AD XSTEI XSFEI XSAEI AVDD5_AD XSSBAD GND XSDFCT XSCSJ XSCLK XSDATA XSLDC XSFGIN XSSPDON XSFLAG3 XSFLAG2 XSFLAG1 XSFLAG0 XMP1_7 XMP1_6 GND XMP1_5 XMP1_4 XRD3 XRD12 GND XRD2 XRD13 XRD1 XRD14 XRD0 XRD15 XHD7 XHD8 XHD6 XHD9 XHD5 XHD10 XHD4 XHD11 VDD_3.3 XHD3 XHD12 XHD2 XHD13 GND XHD1 XHD14 XHD0 XHD15 XHDRQJ XHIOWJ XHIORJ XHIORDYJ XHDACKJ XHINTJ XHCS16J XHA1 XHPDIAGJ XHA0 XHA2 XHCS1J XHCS3J XHDASPJ XMA15 XMA14 XMA13
132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89
R236
4 INSW
5 MFSCSJ
PLCK SLRF
PLCK TP
5 LED1
MA15 MA14 MA13
5 EJECT1
EJECT1
COUNTER
6 IDERST
2 PI_SIGO 4,5 CRSTJ 5 MPSENJ
MA[00..15]
MA[0..15] 5
RFO FOCUS TRACK SLEG MOTOR SSBAD DFCT XSFGIN FLAG0 FLAG1 FLAG2 FLAG3
PT 90 NEAT Service Manual
FOCUS TP SLEG TP SSBAD TP XSFGIN TP FLAG1 TP FLAG3 TP
SLRF 2 LDON TP RFO COUNTER TP TP TRACK TP MOTOR TP DFCT TP FLAG0 TP FLAG2 TP
5 A16J
DECODER.SCH Title ALI M5705 (176 PIN) DVD/CD DECODER
TC11 220U/16V 0.1U RFGND RFGND BC11
R101 10
TC12
100U/16V
Q11 RFGND C101 MEIR103 R104 8K2 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 PUHRF U11 RFGND C112 C109 680P 4K7 3 RFO C107 0.1U RFVCC 3.3P
E
R102
C102 0.1U C104 0.1U
C103 0.1U C105 0.1U
B
CDLDO
PRE-AMP.
SOT89EBC 2SB1132
C
C106
5K1
ALI HOP-1000
1000P
L11
CDLD
10UH
PT 90 NEAT Service Manual
D11 1N4148
CDRFDC CDRF ATOP ATON AIN AIP VPA SIGO BYP RX DIN DIP FNP FNN VNA HOLD1
RFGND
RFGND 0.1U MVREF25 C116 0.047U FEI MEIC121 0.1U MEVO C120 1000P
1
2
C110 33P C111 33P C113 33P
RFGND SCSJ 3 SDATA 3 SCLK 3
TC13 SP3721
R105 10
SAE FEI TEI RFVCC PI C122 C RFGND C123 150P RFVCC TEXI 3 SDFCT 3 SBAD 3
3 3 3
100U/16V
C114 680P C115 680P C117 680P C118 680P C119 100P
E
Q12 F E MVREF25 R107 R108 R109 CDTE VC12 NC VNB DVDPD DVDLD CDPD CDLD LDON VC VCI VPB MIRR MP MB FDCHG 1K2 1K2 10K
R106
D C B A
B
DVDLDO
SOT89EBC 2SB1132
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DVDFRP DVDRFN PD1 PD2 A2 B2 C2 D2 CP CN D C B A F E SDEN SDATA SCLK LCP LCN CE FE TE MEI MEV TPH DFT PI MIN MEVO MLPF
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
C
C124
1K
1000P R110 10K 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
L12
DVDLD
1
RFGND RFVCC C125 4700P C126 1000P
34
MVREF25 RFGND R134 R135 0 R
10UH
2
D12 1N4148
RFVCC BC12 0.1U
R134 R135 MVREF2!=MVREF25 0 R MVREF2=MVREF25 R 0
DVDMDI DVDLDO CDMDI CDLDO 3 LDON
RFGND
CN11
EFGC 3 MIRR 3 MVREF2 TC14 100U/16V TC15 C127 0.1U C128 0.1U 100U/16V R112 MVREF2 3,4 R RFRP 3
TRACKTRACK+ FOCUSFOCUS+ DVDMDI
TRACKTRACK+ FOCUSFOCUS+
4 4 4 4
DVDLD CDLD TC16 100U/16V
C129
0.1U
R113 RFGND MVREF2 RFVCC U12 33P R132 1K5 R133 BC13 8K2 0.1U 1 2 3 4 AO AA+ VV+ BO BB+ TL3472 C134 0.47U 8 7 6 5 R118 56K C131 R115 470K RFGND R136 10K R114
0
MEVO
CDMDI
R
PI
PUHRF C B A D F E
RFGND
TRTR+ FOFO+ PD(MONITOR) VCC VR GND LD(DVD) LD(CD) VR GND(NC) PD GND RFOUT C B A D F E VCC VS(VCC) GND
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
MVREF25
HOP-1000 JP24-05M
R123
C130
R122 100
100
0.1U
RFGND
RFGND PREAMP.SCH Title ALI HOP 1000 PRE-AMP CIRCUIT
RFGND
RFGND
Vref 2.1V 2.5V
R132 R133 1.5K 8.2KRFGND 0 R
12V 5V VCC
POWER
L71 L72 1 FB-1 C702 C703 0.1U 100U/16V PLLVCC RFVCC MVCC 3.3V 0.1U 220U/16V TC72 TC73 2
+12V
FB-1
ALI HOP-1000
C701
TC71
0.1U
220U/16V
PAGND PLLVCC TP RFVCC TP 3.3V TP MVCC TP 2 M5V FB-1
PAGND
L74 5V 1
L78 PLLVCC R701 3.3 0805 C704 0.1U PLLGND TP PLLGND RFGND TP MGND TP GND TP C706 0.1U 220U/16V TC75 PLLGND RFGND MGND GND
5V
FB-1
Q73 (BA05 TO252AA)
MVCC
1
3
PAGND RFVCC L77 1 FB-1 C707 0.1U 2
2
GND
C709 1 0.1U
35
PAGND RFGND 5V Q72 SOT223 AS1117 3 IN OUT 2 C708 0.1U TC76 100U/16V 3.3V
12V
D71
D72
1
2
1
2
MVCC
1N4002
1N4002
C710
0.1U
PT 90 NEAT Service Manual
PAGND
PT 90 NEAT Service Manual
VEE HA2 /AUX4[4] VEE AUX[0] AUX[1] AUX[2]/IOW# VSS VEE AUX[3]/IOR# AUX[4] AUX[5] AUX[6] AUX[7] LOE# VSS VCC LCS0# LCS1# LCS2# LCS3# VSS LD0 LD1 LD2 LD3 LD4 VEE VSS LD5 LD6 LD7 LD8 LD9 LD10 LD11 VSS VEE LD12 LD13 LD14 LD15 LWRLL# LWRHL# VSS VEE CAMIN0 CAMIN1 LA0 LA1 LA2 LA3 VSS
157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208
ES6008/18/28/38
208-Pin PQFP Package
MPEG Board MPEG Decoder
36
VEE LA4 LA5 LA6 LA7 LA8 LA9 VSS VCC LA10 LA11 LA12 LA13 LA14 LA15 LA16 VSS VEE LA17 LA18 LA19 LA20 LA21 RESET# TDMDX/RSEL VSS VEE TDMDR TDMCLK TDMFS TDMTSC# TWS/SEL_PLL2 TSD0/SEL_PLL0 VSS VCC TSD1/SEL_PLL1 TSD2 TSD3 MCLK TBCK SPDIF/PLL3 NC VSS VCC RSD RWS RBCK NC XIN XOUT AVEE VSS 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 VSS HA1/AUX4[3] HA0/AUX4[2] HCS3FX#/AUX3[6] HCS1FX#/AUX3[7] HIOCS16#/CAMCLK/AUX3[4] HRD#/DCI_ACK#/AUX4[6] HWR#/DCI_CLK/AUX4[5] VEE VSS HIORDY/AUX3[3] HRST#/AUX3[5] HIRQ/DCI_ERR#/AUX4[7] HRRQ#/AUX4[0] HWRQ#/DCI_REQ#/AUX4[1] HD15/AUX2[7]/IR HD14/AUX2[6]/SQSI VCC VSS HD13/AUX2[5]/SP HD12/AUX2[4]/C2PO HD11/AUX2[3]//IRQ HD10/AUX2[2]/SQSK HD9/AUX2[1]/SQSO HD8/DCI_FDS#/AUX2[0]/VFD_CLk HD7/DCI7/AUX1[7]/VFD_DIN VEE VSS HD6/DCI6/AUX1[6]/VFD_DOUT HD5/DCI5/AUX1[5] HD4/DCI4/AUX1[4] HD3/DCI3/AUX1[3] HD2/DCI2/AUX1[2] HD1/DCI1/AUX1[1] HD0/DCI0/AUX1[0] VCC VSS HSYNC#/CAMIN7/AUX3[0] VSYNC#/CAMIN6/AUX3[1] PCLKQSCN/CAMIN5/AUX3[2] PCLK2XSCN/CAMIN4 YUV7/CAMIN3 YUV6/VDAC YUV5/YDAC VSS ADVEE YUV4/RSET YUV3/COMP YUV2/CDAC YUV1/VREF YUV0/CAMIN2/UDAC DCLK
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53
VEE VSS DSCK DQM DCS0# VEE VSS DCS1# DB15 DB14 DB13 DB12 VEE VSS DB11 DB10 DB9 DB8 DB7 DB6 VSS VCC DB5 DB4 DB3 DB2 DB1 DB0 VSS VEE DMBS1 DMBS0 DRAS# DWE# DOE#/DSCK_EN DCAS# VEE VSS DMA11 DMA10 DMA9 DMA8 DMA7 DMA6 VSS VEE DMA5 DMA4 DMA3 DMA2 DMA1 DMA0
PT 90 NEAT Service Manual
11- DESCRIPTION OF INTEGRATED CIRCUITS -TV PART-
37
PT 90 NEAT Service Manual
STV224X
Multi Standard TV Processor
pos: ICV1
STV224X is a fully bus controlled IC for TV including PIF, SIF , Luminance , Chrominance and deflection processing. It is a bus controlled PAL / SECAM / NTSC single chip TV Processor. For details of STV224X features please refer to the STV224X datasheet. 110° , 4:3 or 16:9 CRT applications. It integrates both vertical deflection and E-W correction circuit necessary for design of 110° chassis it allows designing a PAL/NTSC(BGDKIMN) set with very few external components and no manual adjustment.
SIFIN1 SIFIN2 AGCSIFCAP V REFIF AGCPIFCAP PIFIN1 PIFIN2 TUNERAGCOUT IFPLL GND IF AM /FMOUT/SC V CCIF INTCVBSOUT EXTAUDIOIN PIFLC1 PIFLC2 V CC2 CVBSIN1 GND2 CVBSIN2 BS Y/CVBSIN3 CHR APR BEXT/Cb GEXT/Y REXT/Cr FBEXT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29
FMCAP AUDIOOUT GNDD V CCD SDA SCL SLPF LFB/SSC HOUT VERT BCL/SAF V CC1 CVBSOUT2 GND1 X1/VAMP/CHROUT CLPF XTAL1 XTAL2 XTAL3/BTUN FBOSD/HC ROSD GOSD BOSD I CATH ROUT GOUT BOUT NTBC/CVBSOUT1
38
PT 90 NEAT Service Manual
STV224X
1.2 PIN DESCRIPTION Table 1. Pin Configuration
Pin N° STV224XC/8XC STV223XD SDIP56 TQFP64 1 8 2 9 3 10 4 11 5 12 6 13 7 14 8 16 9 17 10 18 11 19 12 20 13 21 14 22 15 23 16 24 17 25 18 26 19 27 20 28 21 29 22 34 23 35 37 38 39 40 41 42 30 43 31 44 32 45 33 46 34 47 35 48 36 49 37 50 38 52 39 53 40 54 41 55 42 56 Symbol SI N 1 FI SI N 2 FI AG C SI AP FC VREFIF AGCPIFCAP PIFIN1 PIFIN2 TUNERAGCOUT IFPLL GND IF AM/FMOUT/SC VCCIF INTCVBSOUT EXTAUDIOIN PIFLC1 PIFLC2 VCC2 CVBSIN1 GND2 CVBSIN2 BS Y/CVBSIN3 CHR UI N VI N YI N YOUT VO U T UO UT BOUT GOUT ROUT I CATH BOSD GOSD ROSD FBO SD /HC XTAL3/ BTUN XTAL2 XTAL1 CLPF Description
SI I F nput SI I F nput AG C SI C apacit F or Voltage Reference Filtering AGC PIF Capacitor PIF Input PIF Input AGC Tuner Output IF PLL Filter IF Ground AM/FM Mono Sound or Stereo Carriers Output 5 V IF Supply Internal CVBS Output External Audio Input LC Input LC Input Video/Luma Supply Voltage (8 V) Internal Video Input Video/Luma Ground External Video Input Black Stretch Capacitor Y(SVHS) or CVBS3 External Input Chroma (SVHS) Input B- Inut Y p R - Inut Y p Y In put Y O ut put R - O utp Y ut B- O utp Y ut Blue Output Green Output Red Output Cathode Current Measurement Input OSD Blue Input OSD Green Input OSD Red Input O SD Fast Bl anking nput /alf ont st on I I H C ra SD P56 p age ack 3. M Hz C r t 5X ys alorC l oche Filt erTuningC apaci tor 3.5X MHz Crystal 4.43/3.5X MHz Crystal Chroma PLL Filter XTAL1 Control Pin, Vertical Amplitude DAC Output X1/VAMP/CHROUT Chroma Reference Signal Output
39
PT 90 NEAT Service Manual
Pi N ° n STV224XC/8XC STV223XD SDIP56 TQFP64 43 57 58 45 59 46 47 48 49 50 51 52 53 54 55 56 61 62 63 64 1 2 3 4 5 6 7
Symbol GND1 CVBSOUT1 VCC1 BCL/SAF VERT HOUT LFB/SSC SLPF SCL SDA VCCD GNDD AUDIOOUT FM C AP
Description Chroma/Scanning Ground Main Video Switch Output Chroma/Scanning Power Supply (8 V) Beam Current Limiter Control Voltage and Safety (XRAY) Vertical Output Pulse Horizontal Output Pulse Line Flyback Input and Super-Sandcastle Output Scanning PLL Filter I C Bus Clock Input I C Bus Data Input Digital Supply Voltage (5 V) Digital Ground Main Audio Output FM D em odul on C apacit ati or
40
CVBSOUT2
NTBC/CVBSOUT1
FMCAP
INTCVBSOUT CVBSIN2 CVBSIN1 GEXT/Y FBEXT BEXT/Cb Y/CVBSIN3 REXT/Cr CHR BS
IFPLL
STV2248
PLL BLACK STRETCH YUV SWITCH RGB TO YUV AFC
15
PIFLC1
16 9 21 28 25 26 27 13 23 18 29 44 22 20 56
PIFLC2
PIFIN1 6
W/B SPOT INVERTER SAT./CONT MATRIX 3
PIFIN2 7
LUMA DL PEAKING & CORING
HALF CONTRAST
24 APR
AGCPIFCAP
SOUND BP FM DEMOD
5
AGC
APR DEEMP.
CHROMA TRAP RGB SWITCH RGB CONTRAST 37 FBOSD/HC 36 ROSD 35 GOSD 34 BOSD BCL/SAF BRIGHT. DRIVE CUTOGG BLANKING I CATH SENSE 46 BCL/SAF 33 I CATH 32 ROUT 31 GOUT 30 BOUT CLOCHE FILTER
TUNERAGCOUT
8
TUNER AGC
PLL Reference Carrier
SIFIN1 1
LIMITER
FM Mono
FILTER TUNING
SIFIN2 2 AM Mono ACC & ACC OVERLOAD Sound
41
Subcarrier BANDPASS FILTER Mute
CLOCHE TUNING
AGCSIFCAP
3
AGC
V CCD 53
GNDD
54
V CCIF 54 Mute
CHROMA DL
SYNC. SEP
VERTICAL SCANNING
47 VERT
GND
IF 10
V CC1 45 AVL VOLUME
HORIZONTAL 1st LOOP
AUTO IDENT. KILLER PAL/SECAM/NTSC DEMODULATOR
HORIZONTAL 2nd LOOP
48 HOUT
GND1 43
V CC2 17
IC BUS DECODER
AUDIO REF 4
GND2 55 EXTAUDIOIN AUDIOOUT 14 11 AM/FMOUT/SC
19
VAMP DC CONTROL
52
51
38 XTAL2 XTAL1 XTAL3/BTUN
41 CLPF
42 X1/VAMP/CHROUT
50 SLPF
49 LFB/SSC
PT 90 NEAT Service Manual
V REF
SDA
SCL
PT 90 NEAT Service Manual
MAIN FEATURES
l l l l l l l l l l l l l l l l l
l l l l l l l l l l
l l l l l l l l l l l l l l l l l l l l
I-C bus control (read and write modes), PIF PLL demodulator, Bus controlled VCO alignment, IF positive and negative modulation, Digital AFC, Tuner delayed AGC output, White and Black spot cancellation, SIF with QSS or intercarrier structure, Built in sound bandpass, Multistandard PLL FM demodulator (4.5, 5.5, 6.0,6.5MHz), AM demodulator for France, FM sound carriers output for Stereo chassis, Audio switch for external audio input, Mono chassis, Digital volume control, Audio Mute, Video switch, 3 CVBS inputs, 1 CVBS output which can be used to drive teletext decoder, SVHS switch, Y input is combined with CVBS3 input, OSD RGB analog inputs, fast blanking detection on OSD fast blanking pin, contrast control capability,oversize blanking capability on OSD fast blanking input, External analog RGB inputs with contrast and saturation control (external RGB matrixed in YUV). Integrated chroma filters (trap, bandpass, cloche) with automatic alignment, Integrated luminance delay line, Adjustable peaking on the luminance signal with coring function, Black strech circuit, PAL / SECAM / NTSC color decoder with automatic identification of standards, Integrated chroma delay line, Full integrated SECAM decoder, Hue control, two selectable matrixes in NTSC mode, Automatic flesh control circuit with two selectable characteristics (normal and wide), ACC overload circuit, Chroma subcarrier output, which could be used to drive comb filter circuit, Automatic RGB peak regulation (APR). Automatic digital cut-off current loop with warm-up detection circuit, White point and cut-off point adjustments, Beam current limiter control stage, High performance synchronization pulses separator, Horizontal synchronization with two phase locked loops, Integrated VCO, auto-calibration using the chroma crystal reference frequency, Automatic time constant selection for the first PLL, 3 selectable time constants,
l
Video identification circuit (independent from PLL1), Noise detector circuit, Vertical countdown circuit, Automatic 50/60Hz selection circuit, Blanking and inserted cut-off pulses position adapted to standard (50 or 60Hz), Long blanking mode capability in 60Hz (same blanking as 50Hz standard), Possibility to insert cut-off pulses after a vertical oversize blanking signal, De-interlace capability, Horizontal starting circuit with soft-start capability, Horizontal and vertical position adjustments, vertical amplitude control voltage (combined with chroma subcarrier output), 4/3, 16/9 selection voltage.
42
PT 90 NEAT Service Manual
ELEC TRICAL CHAR A CT ERISTI CS
A B SO LU TE MA XIMUM RA TIN S G
Symbol V CC _8V V CC _5V V ESD Toper Tstg 8 V Supply Voltage 5 V Supply Voltage Capacitor 100 pF discharged viaserial resistance (Human Body Model) 1.5 k ±2 Operating Temperature Storage Temperature Parameter Value 10 7 kV 0, +70 °C -55, +150 °C Unit V V
TH ER M A L DA TA
Symbol Parameter SDIP56 TQFP64 Typical Value 40 50 Unit °C/W °C/W
R th (j-a) Junction-ambient Thermal Resistance (measured at P D = 1 W)
SU PPLY (Supplies at Typical Values, 25C, I bus register at power-on reset value, autom ° C amb = T mode, unless otherwise specified).
Symbol V CCIF V CCD V CC1 V CC2 I CCIF I CC5F I CCI I CC2 PD Parameter Test Conditions Min. Typ Max. Unit IF Circuit Supply Voltage 4.75 5 5.25 Bus & Digital Supply Voltage 4.75 5 5.25 Chroma, Scanning Supply Voltage 7.6 8 8.4 V Video Supply Voltage 7.6 8 8.4 V V CCIF Current Consumption V = 5 V. No-load at RGB outputs. 58 m CCIF V CC5F Current Consumption V = 5 V. No-load at RGB outputs. 48 m CCD V CCI Current Consumption V 40 m CCI = 8 V. No-load at RGB outputs. V CC2 Current Consumption V = 8 V. No-load at RGB outputs. 56 m CC2 V CCI = V = 8 V, CC2 Total Power Dissipation V CCIF =V CC5V = 5 V No-load at RGB outputs. 1300 mW
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PT 90 NEAT Service Manual
ST92195C/D
pos: IC01
48-96 KB ROM HCMOS MCU WITH ON-SCREEN DISPLAY AND TELETEXT DATA SLICER
General Features:
· Register File based 8/16 bit Core Architecture with RUN, WFI, SLOW and HALT modes · 0°C to +70°C Operating Temperature Range available · Up to 24 MHz Operation @ 5V±10% · Minimum instruction cycle time: 165nS at 24MHz. · 48, 56, 64, 84 or 64K Bytes ROM · 256 Bytes RAM of Register file (accumulators or index registers) · 256 to 512 Bytes of on-chip static RAM · 2 or 8 Kbytes of TDSRAM (Teletext and Display Storage RAM) · 28 fully programmable I/O pins · Serial Peripheral Interface · Flexible Clock controller for OSD, Data Slicer and Core clocks running from a single low frequency external crystal. · Enhanced Display Controller with 26 rows of 40/80 characters 2 sets of 512 characters Serial and Parallel attributes 10x10 dot Matrix, definable by user 4/3 and 16/9 supported in 50/60HZ and 100/120 Hz mode Rounding, fringe, double width, double height, scrolling, cursor, full Background color, half-intensity color, translucency and half-tone modes · Teletext unit, including Data slicer, Acquisition Unit and up to 8K Bytes RAM for Data Storage · VPS and Wide Screen Signalling slicer · Integrated Sync Extractor and Sync Controller · 14-bit Voltage Synthesis for tuning reference voltage · Up to 6 External Interrupts plus one non-maskable interrupt · 8 x 8-bit programmable PWM outputs with 5V open-drain or push-pull capability · 16-bit Watchdog timer with 8-bit prescaler · 1 or 2 16-bit standard timer(s) with 8-bit prescaler · IC Master/Slave (on some devices) · 4-channel A/D converter; 5-bit guaranteed · Rich instruction set and 14-Addressing modes · Versatile development tools, including Assembler, Linker, 44 C-Compiler, Archiver, Source Level Debugger and hardware emulators with Real-Time Operating System available from third parties · Pin Compatible EPROM and OTP devices available. Microcontroller+OSD+(Teletext decoder)+VPS/PDC/WS decoder are embedded in one chip, where there are two types with the major difference; ST92185 No-teletext ST92195 With teletext The ST92195 microcontroller is developed and manufactured by STMicroelectronics using a pro-prietary n-well HCMOS process. Its performance derives from the use of a flexible 256-register pro-gramming model for ultra-fast context switching and real-time event response. The intelligent on-chip peripherals offload the ST9 core from I/O and data management processing tasks allowing critical application tasks to get the maximum use of core resources. The ST92195 MCU supports low power consumption and low voltage operation for power-efficient and low-cost embedded systems. The advanced ST9+ Core consists of the Central Processing Unit (CPU), the Register File and the Interrupt controller. The general-purpose registers can be used as accumulators, index registers, or address pointers. Adjacent register pairs make up 16-bit registers for addressing or 16-bit processing. Although the ST9 has an 8-bit ALU, the chip handles 16-bit operations, including arithmetic, loads/stores, and memory/register and memory/memory exchanges. Two basic addressable spaces are available: the Memory space and the Register File, which includes the control and status registers of the on-chip peripherals. Power consumption of the device can be reduced by more than 95% (Low power WFI). Up to 28 I/O lines are dedicated to digital Input/Output. These lines are grouped into up to five I/O Ports and can be configured on a bit basis under software control to provide timing, status signals, timer and output, analogue inputs, external interrupts and serial or parallel I/O. A set of on-chip peripherals form a complete system for TV set and VCR applications: Voltage Synthesis VPS/WSS Slicer Teletext Slicer Teletext Display RAM OSD
PT 90 NEAT Service Manual
BLOCK DIAGRAM
Up to 96 Kbytes ROM 256 or 512 bytes RAM
I/O PORT 0
8
P0[7:0]
I/O PORT 2 I/O PORT 3
6
P2[5:0]
Up to 8 Kbytes TRI TDSRAM
4
P3[7:4]
8/16-bit CPU NMI INT[7:4] INT2 INT0 MMU Interrupt Management ST9+ CORE OSCIN OSCOUT RESET RESETO RCCU 16-BIT TIMER/ WATCHDOG SDO/SDI SCK MCFM SPI TIMING AND CLOCK CTRL VOLTAGE SYNTHESIS
MEMORY BUS
256 bytes Register File
I/O PORT 4
8
P4[7:0]
I/O PORT 5 DATA SLICER & ACQUISITION UNIT SYNC. EXTRACTION REGISTER BUS VPS/WSS DATA SLICER ADC
2
P5[1:0]
TXCF CVBS1
WSCR WSCF CVBS2 AIN[4:1] EXTRG VSYNC HSYNC/CSYNC CSO FREQ. PXFM MULTIP. R/G/B/FB TSLU HT PWM[7:0]
SYNC CONTROL ON SCREEN DISPLAY PWM D/A CONVERTER
VSO[2:1]
STOUT0 SDA1/SCL1 SDA2/SCL2
STANDARD TIMER 1) IC 2)
All alternate functions characters) (Italic are mapped on Ports 0, 2, 3, 4 and 5 Note 1 One standard timer on ST92195C devices, two standard timers on ST92195D devic : Note 2 C available on ST92195D devices only : I
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PT 90 NEAT Service Manual
PIN DESCRIPTION (Cont ' d) Figure 3. 56-Pin Package Pin-Out
INT7/P2.0 1 RESET 2 P0.7 3 P0.6 4 P0.5 5 P0.4 6 P0.3 7 AIN4/P0.2 8 P0.1 9 P0.0 10 CSO/RESET0 /P3.7 11 P3.6 12 P3.5 13 P3.4 14 B 15 G 16 R 17 FB 18 SDA1/SDI/SDO/P5.1 19 20 SCL1/SCK/INT2/P5.0 V DD 21 JTDO 22 23 WSCF V PP /WSCR 24 AVDD3 25 TEST0 26 27 MCFM JTCK 28 56 P2.1/INT5/AIN1 55 P2.2/INT0/AIN2 54 P2.3/INT6/VS01 53 P2.4/NMI 52 P2.5/AIN3/INT4/VS02 51 OSCIN 50 OSCOUT 49 P4.7/PWM7/EXTRG/STOUT0 48 P4.6/PWM6 47 P4.5/PWM5/SDA2 46 P4.4/PWM4/SCL2 45 P4.3/PWM3/TSLU/HT 44 P4.2/PWM2 43 P4.1/PWM1 42 P4.0/PWM0 41 VSYNC 40 HSYNC/CSYNC 39 AVDD1 38 PXFM 37 JTRSTO 36 GND 35 AGND 34 CVBS1 33 CVBS2 32 JTMS 31 AVDD2 30 CVBSO 29 TXCF
RESET Reset (input, active low). The ST9+ is iniVSYNC Vertical Sync. Vertical video synchro tialised by the Reset signal. With the deactivationto OSD. Positive or negative tion input of RESET, program execution begins from the HSYNC/CSYNC Horizontal/Composite sync. HoriProgram memory location pointed to by the vector composite video synchronisatio zontal or contained in program memory locations 00h and OSD. Positive or negative polarity. 01h. PXFM Analog pin for the Display Pixel F R/G/B Red/Green/Blue. Video color analog DAC Multiplier outputs. AVDD3 Analog V DD of PLL. This pin must be t FB Fast Blanking. Video analog DAC output. to V externally. DD VDD Main power supply voltage (5V±10%, digital) GND Digital circuit ground. WSCF, WSCR Analog pins for the VPS/WSS slic- Analog circuit ground (must be ti AGND er . These pins must be tied to ground or not to digital GND). nally connected. CVBS1 Composite video input signal for t VPP: On EPROM/OTP devices, the WSCR pin is text slicer and sync extraction. replaced by Vwhich is the programming voltage PP CVBS2 Composite video input signal for t pin. PP should be tied to GND in user mode. V WSS slicer. Pin AC coupled. MCFM Analog pin for the display pixel frequency AVDD1, AVDD2 Analog power supplies (must multiplier. tied externally to AVDD3). OSCIN, OSCOUT Oscillator (input and output). These pins connect a parallel-resonantTXCF Analog pin for the Teletext slicer crystal (24MHz maximum), or an external source CVBSO, JTDO, JTCK Test pins: leave float to the on-chip clock oscillator and buffer. OSCIN is the TEST0 Test pins: must be tied to AVDD2. input of the oscillator inverter and internal clock JTRST0 Test pin: must be tied to GND. generator; OSCOUT is the output of the oscillator inverter.
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PT 90 NEAT Service Manual
PIN ASSIGNMENT
Pin No. 1 3 4 5 6 7 8 9 10 11 12 13 14 28 30 32 42 43 44 45 46 47 48 49 53 54 55 56 Pin Name INT7/P2.0 P0.7 P0.6 P0.5 P0.4 P0.3 AIN4 P0.1 P0.0 CSO/RESET0/P3.7 P3.6 P3.5 P3.4 JTCK CVBSO JTMS P4.0/PWMO P4.1/PWM1 P4.2/PWM2 P4.3/PWM3 P4.4/PWM4 P4.5/PWM5 P4.6/PWM6 P4.7/PWM7/EXTRG/STOUT P2.4/NMI P2.3/INT6/VS01 P2.2/INT0/AIN2 P2.1/INT5/AIN1 I/O Function IR INT. IN DVDDATAOUT STOP N.C. N.C. N.C. AV.STATUS N.C. N.C. MUTE_DVD L/L' TV/DVD STDBY N.C. N.C. N.C. DVD_STD_BY VOL N.C. DVD POWER +5V DVD POWER +12V N.C. N.C. N.C. N.C. LED CONTROL DVDDATAIN KEYBOARD INPUT
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PT 90 NEAT Service Manual
24C08
Non-Volatile Memory
pos: IC02
These I_C-compatible electrically erasable programmable memory (E_PROM) is organized as 1024 x 8 bit and operate with a power supply of 5 V. The memory behaves as a slave device in the I_C protocol, with all memory operations synchronized by the serial clock. Read and Write operations are initiated by a START condition, generated by the bus master. The START condition is followed by a Device Select Code and RW bit terminated by an acknowledge bit.
DC Characteristics
70 85 °C; V (T = 0 to°C, 20 to °C or 40 to 85 CC = 3V to 5.5V, 2.5V to 5.5V or 1.8V to 5.5V A
Symbol I LI I LO Parameter Input Leakage Current Output Leakage Current Supply Current (ST24 series) Supply Current (ST25 series) Supply Current (Standby) (ST24 series) Test Condition V V 0V IN CC 0V V OUT V CC SDA in Hi-Z V CC = 5V, f 100kHz C = (Rise/Fall time < 10ns)
CC
Min
Max ±2 ±2 2 1 100 300 5 50 20 60 10 20 0.3
CC
Unit µA µA mA mA µ µ A A µA µA µA µA µA µA 0.3 V V V V V V V V
I CC
V C f = 2.5V, = 100kHz
I CC1
V V IN = VS or CC , S V CC = 5V V IN = VS or CC , V S V CC = 5V, f 100kHz C = V IN = VS or CC , V S V CC = 2.5V V IN = VS or CC , V S V CC = 2.5V, = 100kHz C f V V IN = VS or CC , S V CC = 3.6V V IN = VS or CC , V S V CC = 3.6V, = 100kHz C f V IN = VS or CC , V S V CC = 1.8V V IN = VS or CC , V S V CC = 1.8V, = 100kHz C f
I CC2
Supply Current (Standby) (ST25 series)
I CC3
Supply Current (Standby) (ST24C08R)
I CC4
Supply Current (Standby) (ST24C08R)
V IL V IH V IL V IH
Input Low Voltage (SCL, SDA) Input High Voltage (SCL, SDA) Input Low Voltage (E, PRE, MODE,C) W Input High Voltage (E, PRE, MODE,C) W Output Low Voltage (ST24 series) = 3mA, CC = 5V I V OL
CC
0.7 VV + 1 CC 0.5 V CC + 1
0.3 V CC 0.5
0.4 0.4 0.3
V OL
Output Low Voltage (ST25 series) = 2.1mA,CCV = 2.5V I OL Output Low Voltage (ST24C08R) V I = 1mA, CC = 1.8V OL
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PT 90 NEAT Service Manual
TDA1771
VERTICAL DEFLECTION CIRCUIT
DESCRIPTION
pos: ID41
. . . . . . .
The TDA1771 is a monolithic integrated circuit in SIP10 package. It is a full performance and very efficient vertical deflection circuit intended for direct drive of a TV picture tube in Color and B & W television as well as in Monitor and Data displays.
RAMP GENERATOR INDEPENDENT AMPLITUDE ADJUSTEMENT BUFFER STAGE POWER AMPLIFIER FLYBACK GENERATOR INTERNAL REFERENCE VOLTAGE THERMAL PROTECTION
SIP10 (Plastic Package) ORDER CODE : TDA1771
PIN CONNECTIONS (top view)
10 9 8 7 6 5 4 3 2 1 FLYBACK GENERATOR VS INVERTING INPUT BUFFER OUTPUT RAMP GENERATOR GROUND HEIGHT ADJUSTMENT TRIGGER INPUT OUTPUT STAGE V S POWER OUTPUT
ESCRIPTION he TDA1771 is a monolithic integrated circuit in IP10 package. t is a full performance and very efficient vertical eflection circuit intended for direct drive of a TV icture tube in Color and B & W television as well s in Monitor and Data displays. LOCK DIAGRAM
9 2
VOLTAGE REGULATOR
FLYBACK GENERATOR
10
R3
TRIGGER IN
3
RAMP GENERATOR
CLOCK PULSE
POWER AMP.
1
BUFFER STAGE
THERMAL PROTECTION
4
6
7
8
5
49
-02.EPS
1771-01.EPS
PT 90 NEAT Service Manual
ABSOLUTE MAXIMUM RATINGS
Symbol VS V1 , V3 V8 I 0 I 0 I 10 I 10 P tot TS ,
JT 2V
Parameter Supply Voltage Flyback Peak Voltage Trigger Input Voltage Amplifier Input Voltage Output Peak to Peak Current (non repetitive t = 2ms) Output Peak to Peak Current t > 10 µs Pin 10 DC Current1 at V < 9 V Pin 10 Peak to Peak Current @ t fly< 1.5ms Total Power Dissipation @ T°C tab = 60 Storage and Junction Temperature
Value 30 65 20 GND to V S 4 100 3 9
Unit V V V V 6 A mA W
1771-01.TBL
A
40, + 150 °C
THERMAL DATA
R th R th Thermal (j-tab)
(j-a)
Resistance Junction-tab
Max. Max.
10 70
°C/W °C/W
Thermal Resistance Junction-ambient
ELECTRICAL CHARACTERISTICS (T °C amb = 25 unless otherwise specified)
Symbol DC (V = 30V) S I 2 I 9 6 I 6 I dI/I 6 6 V1 V 1L V 1H V4 dV4/V S dV4/d I Vr Gv V fs V 10 V3 I 3 t 3
4
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Pin 2 Quiescent Current Pin 9 Quiescent Current Ramp Generator Bias Current Ramp Generator Current Ramp Gener. Linearity Quiescent Output Voltage
1 1 6 6 6 a
= 0, I 0 I = 10 = 0, I 0 I = 10 = 0 V =V 0, 4 =I 20 µA = V to 15V, = 20 0 µA 4 I = R , R = 10k V = 30V 30k b , S 17.0 7.2 18.5
16 15 20 0.2 17.8 7.5 0.5 1 1.1 1.6 6.3 6.6 1 1.5 4.26
36 30 0.5 21.5 1 18.6 7.8 1 1.4 1.6 2.2 6.9 2 2 4.40 60 2.5 3 3.0 30
mA mA µA µA % V V V V V V V mV/V mV/ µA 4.54 dB V V µA
1171-03.TBL
, b , S R a = 6.8k R = 10k V = 15V Out Saturation Voltage to GND 1 = 0.5A I I = 1.2A 1 Out Saturation Voltage to V S Reference Voltage 1 = 0.5A I 1 = 1.2A I
4
I µA = 20
Reference Voltage Drift VersusS V= 10V to 30V V S Reference Voltage Drift 4 Versus = 10 to 30 I I µA µA 4 Internal Ref. Voltage Ouput Stage Open Loop Gain V9
10Saturation Voltage 10 10
1771-02.TBL
Symbol
Parameter
Value
Unit
V
f = 100Hz = 1.2A I (see note 1)
IN
1.5 1.7 2.6 20
Pin 10 Scanning Voltage Trigger Input Threshold Trigger Input Bias Current Trigger Input Width
= I 20mA = V V 0.2V 3 (see note 2)
3.4
60 µS th
Notes : 1. The trigger input circuit can accept, with a metal option, positive and negative going input pulses. 1.2 t S 2. th = where t the vertical period and V amplitude at Pin 6 S is PP is ramp V PP
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PT 90 NEAT Service Manual
ELECTRICAL CHARACTERISTICS (T °C amb = 25 unless otherwise specified) (continued)
Symbol DC (V = 24V) S VS I 1 I S V1 V7 TJS Operating Supply Voltage Range Peak-to-peak Operating Current Range Supply Current Flyback Voltage Sawtooh Pedestall Voltage Junction Temp. for Thermal Shutdown
Y Y
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
10 0.4 315 51 1.85 145 = 2.4A I pp =I 2.4A pp
30 2.5 mA
1771-04.TBL 1771-03.EPS
V
V °C
V
APPLICATION CIRCUIT
+VS
0.1 µF 470µF 1N4001
9
2 100µF 35V
VOLTAGE REGULATOR
FLYBACK GENERATOR
10
R3
TRIGGER IN
3
RAMP GENERATOR
CLOCK PULSE
POWER AMP.
1
2.2 330
YOKE
BUFFER STAGE
THERMAL PROTECTION
0.22 F µ
Ry = 9.6 Ly = 24.6mH Iy = 1.2App
2.4k
4 180k
6 47nF
7
8
5
1.2k
1k
22µF
1500 µF
220k
1.2
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PT 90 NEAT Service Manual
TDA 16846
pos: IP01
Controller for Switch Mode Power Supplies Supporting Low Power Standby and Power Factor Correction
Features
· Line Current Consumption with PFC · Low Power Consumption · Stable and Adjustable Standby Frequency · Very Low Start-up Current · Soft-Start for Quiet Start-up · Free usable Fault Comparators · Synchronization and Fixed Frequency Facility · Over- and Undervoltage Lockout · Switch Off at Mains Undervoltage · Temporary high power circuit (only TDA 16847) · Mains Voltage Dependent Fold Back Point Correction · Continuous Frequency Reduction with Decreasing Load · Adjustable and Voltage Dependent Ringing Suppression Time
Description
The TDA 16846 is optimised to control free running or fixed frequency flyback converters with or without Power Factor Correction (Current Pump). To provide low power consumption at light loads, this device reduces the switching frequency continuously with load, towards an adjustable minimum (e. g. 20 kHz in standby mode). Additionally, the start up current is very low. To avoid switching stresses of the power devices, the power transistor is always switched on at minimum voltage. A special circuit is implemented to avoid jitter. The device has several protection functions: V CC over- and undervoltage, mains undervoltage, current limiting and 2 free usable fault comparators. Regulation can be done by using the internal error amplifier or an opto coupler feedback (additional input). The output driver is ideally suited for driving a power MOSFET, but it can also be used for a bipolar transistor. Fixed frequency and synchronized operation are also possible. The TDA 16846 is suited for TV-, VCR- sets and SAT receivers. It also can be good used in PC monitors. The TDA 16847 is identical with TDA 16846 but has an additional power measurement output (pin 8) which can be used for a Temporary High Power Circuit.
Pin Configuration (top view)
U
Pin Definitions and Functions
Pin Symbol OTC PCS RZI SRC OCI FC2 SYN N.C./PMO REF FC1 PVC GND OUT VCC Function Off Time Circuit Primary Current Simulation Regulation and Zero Crossing Input Soft-Start and Regulation Capacitor Opto Coupler Input Fault Comparator 2 Synchronization Input Not Connected (TDA16846) Reference Voltage and Current Fault Comparator 1 Primary Voltage Check Ground Output Supply Voltage 1 2
DTC PCS RZI SRC OCI FC2 SYN
1 2 3 4 5 6 7
14 13 12 11 10 9 8
VCC OUT GND PVC FC1 REF N.C./PMO
3 4 5 6 7 8 9 10 11 12 13 14
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PT 90 NEAT Service Manual
Short Description of the Pin Functions
Pin 1
Functions A parallel RC-circuit between this pin and ground determines the ringing suppression time and the standby-frequency. A capacitor between this pin and ground and a resistor between this pin and the positive terminal of the primary elcap quantifies the max. possible output power of the SMPS. This is the input of the error amplifier and the zero crossing input. The output of a voltage divider between the control winding and ground is connected to this input. If the pulses at pin 3 exceed a 5 V threshold, the control voltage at pin 4 is lowered. This is the pin for the control voltage. A capacitor has to be connected between this pin and ground. The value of this capacitor determines the duration of the softstart and the speed of the control. If an opto coupler for the control is used, it's output has to be connected between this pin and ground. The voltage divider at pin 3 has then to be changed, so that the pulses at pin 3 are below 5 V. Fault comparator 2: If a voltage > 1.2 V is applied to this pin, the SMPS stops. If fixed frequency mode is wanted, a parallel RC circuit has to be connected between this pin and ground. The RC-value determines the frequency. If synchronized mode is wanted, sync pulses have to be fed into this pin. Not connected (TDA16846). / This is the power measurement output of the Temporary High Power Circuit. A capacitor and a RC-circuit has to be connected between this pin and ground. Output for reference voltage (5 V). With a resistor between this pin and ground the fault comparator 2 (pin 6) is enabled. Fault comparator i: If a voltage > 1 V is applied to this pin, the SMPS stops. This is the input of the primary voltage check. The voltage at the anode of the primary elcap has to be fed to this pin via a voltage divider. If the voltage of this pin falls below 1 V, the SMPS is switched off. A second function of this pin is the primary voltage dependent fold back point correction (only active in free running mode). Common ground. Output signal. This pin has to be connected across a serial resistor with the gate of the power transistor. Connection for supply voltage and startup capacitor. After startup the supply voltage is produced by the control winding of the transformer and rectified by an external diode.
2
3
4
5
6 7
8
9
10 11
12 13
14
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PT 90 NEAT Service Manual
TDA16846 Block Diagrams
PVC D4 SYN KSY R7 5V 30k R8 R4 Fold Back Point Correction R6x1/3 11 Primary Voltage Check 1V
+
R6 1.5V
PVA
D5
R3
+
+
15k 75k Control Voltage Limit 5V OTC 1 CS1 Off Time Comparator G1 1 ED2 RSTC/RSTF Eror Amplifier D2
3.5V + VCC 9 8 G4 1 R2 ErrorFlipflop S R Q 6 + FC2 1.2V REF N.C. FC2
+ -
3.5V
5V
RZI
3
+ D3 Buffer for Control Voltage
4 SRC OCI 5
+ + R1 20k
On Time Comparator
& S G2 I1 R Q
G3 &
Output Driver 13 OUT
PCS
2
5V
+
ED1 1.5V D1 Startup Diode 14 12 16V <25mV Overvoltage Comparator Supply Voltage Comparator FC1 1V Zero Crossing Signal
VCC GND
+ -
15.8V
+ -
10
+
1) The input with the lower voltage becomes operative
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PT 90 NEAT Service Manual
TDA7057AQ
2 x5 W stereo BTL Audio Output Amplifier with DC Volume Control
FEATURES
· DC volume control · Few external components · Mute mode · Thermal protection · Short-circuit proof · No switch-on and switch-off clicks · Good overall stability · Low power consumption · Low HF radiation · ESD protected on all pins.
GENERAL DESCRIPTION
The TDA7057AQ is astereo BTL output amplifier with DC volume control. The device is designed for use in TV and monitors, but are also suitable for battery-fed portable recorders and radios.
Missing Current Limiter (MCL)
A MCL protection circuit is built-in. The MCL circuit is activated when the difference in current between the output terminal of each amplifier exceeds 100 mA (typical 300 mA). This level of 100 mA allows for headphone applications (single-ended).
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
VP Pout Gv GC Iq(tot) THD
TYPE NUMBER
supply voltage output power voltage gain gain control total quiescent current total harmonic current
Vp = 12 V; RL = 16 Vp = 12 V; RL = 8
4.5 3.0 39.5 68.0
PACKAGE
3.5 5.3 40.5 73.5 22 0.3
18 41.5 25 1
V W W dB dB mA %
Vp = 12 V; RL = Pout=0.5w w
NAME
DESCRIPTION
VERSION
TDA7057AQ
SYMBOL
DBS13P
PIN
Plastic DIL-bent-SIL power package; 13 leads (lead length 12 mm)
DE