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ATEC-PANDA 2188 Service Manual

54 cm color tv set
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ATEC-PANDA
Type 2188
Type 2168
54 cm Color TV Set
Service Manual

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Questions and answers

juan carlos
May 21, 2025

Que significa el mensaje BUS OPEN MODE

0
1 comments:
Mr. Anderson
May 24, 2025

The meaning of the "BUS OPEN MODE" message for ATEC-PANDA part number 2188 is not provided in the given context.

This answer is automatically generated

0
Lisandra
April 29, 2025

Como ajustar los contrastes color tinidez brillo

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1 comments:
Mr. Anderson
May 15, 2025

To adjust color contrast, tint, and brightness on the ATEC-PANDA 2188:

1. Tint Adjustment:
- Use the "SUB TINT" and "Sub-tint RBI" options.
- Adjust the "Sub-tint RBI" to fine-tune tint.

2. Color Adjustment:
- Use RB (Red Balance), GB (Green Balance), and BB (Blue Balance) to adjust gray color temperature.
- Use RD (Red Drive), GD (Green Drive), and BD (Blue Drive) to adjust white color temperature.
- Repeat adjustments to make both gray and white temperatures meet requirements.

3. Brightness Adjustment:
- Use SB (Sub-brightness).
- Feed black-white 8-step signal, adjust SB so the first and second dimmest steps are just distinguishable.

These adjustments are made through the test or service menu of the TV.

This answer is automatically generated

-1
Juan
January 27, 2025

Cual es el codigo de TV atec-panda

0
1 comments:
Mr. Anderson
February 10, 2025

The TV code for the ATEC-PANDA model 2188 is Type 2188.

This answer is automatically generated

0

Summary of Contents for ATEC-PANDA 2188

  • Page 1 ATEC-PANDA Type 2188 Type 2168 54 cm Color TV Set Service Manual...
  • Page 2 Contents O v e r v i e w … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … 2 C h a s s i s I n s t a l l a t i o n a n d P a r t s L i s t …...
  • Page 3 1. Overview This TV set Consist of main chip LA76814 controlled by Sanyo I C bus and CPU LC863232A. LA76814 is IC dedicated for NTSC, integrated following circuits inside: amplifying and detecting in medium frequency, AFC, demodulating of sound medium frequency, brightness delay-line, filtering and demodulating of color signal, processing of horizontal small signals.
  • Page 4 2. Installation and Parts List of Inner Works Position Type Parts no. Position Type Parts no. number Carbon-film number Carbon-film resistor resistor R105 1/6W 22K RDB223J-NAARD R157 1/6W 12K RDB123J-NAARD R106 1/6W 22K RDB223J-NAARD R160 1/6W 470 RDB471J-NAARD R108 1/6W 390K RDB394J-NAARD R163 1/6W 33K...
  • Page 5 Position Type Parts no. Position Type Parts no. number Carbon-film number Carbon-film resistor resistor R509 1/6W 10K RDB103J-NAARD R764 1/6W 4.7K RDB472J-NAARD R514 1/4W 1K RDC102J-NABRD R807 1/6W 100 RDB101J-NAARD R526 1/6W 220K RDB224J-NAARD R812 1/6W 100K RDB104J-NAARD R601 1/2W 220K RDD224J5NBCND R818B 1/6W 6.8K...
  • Page 6 Position Type Parts no. Position Type Parts no. number Metal oxide number Ceramic resistor capacitor R104 2W 8.2K RSF822J7ACDND C109 50V 0.01u CKF103Z1FA-FC R229 2W 56 RSF560J7ACDND C110 50V 0.01u CKF103Z1FA-FC R404 1W 1.5 RSE1R5J5DCCND C114 50V 560P CKF561K1BA-FC R503 1W 270 RSE271J4ACCND C115...
  • Page 7 Position Type Parts no. Position Type Parts no. number Ceramic number Electrolytic capacitor capacitor C618 50V 4700P CKF472K1BA-FC C309 50V 10u CEF100M1ACAFP C621 1KV 470P CKW471K2RL-ND C317 25V 1000u CED102M1AMHNP C623 1KV 470P CKW471K2RL-ND C320 50V 1u CEF1R0M1ACAFP C625 1KV 470P CKW471K2RL-ND C367 50V 10u...
  • Page 8 Position Type Parts no. Position Type Parts no. number Electrolytic number capacitor Inductor C752 50V 2.2u CEF2R2M1ACAFP L101 39uH-K LBB390K----RG C754 50V 0.47u CEFR47M1ACAFP L203 10uH-K LBB100K----RG C757 50V 10u CEF100M1ACAFP L334 47uH-K LAB470K1---NJ C773 16V 470u CEC471M1ACCFP Non-standard C774 16V 1000u CEC102M1AMFNP inductor...
  • Page 9 Position Type Parts no. Position Type Parts no. number number Diode VD112 FG313003 DLB52004---NA VD622 RGP10D DRRGP10D-01ND VD623 RGP10D DRRGP10D-01ND Diode VD624 BYW95C DRBYW95C---BP VD102 MTZJ5R6B DZMTZJ5R6B-RR VD625 RGP10D DRRGP10D---ND VD103 MTZJ3.6A DZMTZJ3R6A-RR VD633 MTZJ15C DZMTZJ15C--RR HZ4A2 DZHZ4A2---RH VD641 RGP10J DRRGP10J-01ND VD104 1N4148-T77...
  • Page 10 Position Type Parts no. Position Type Parts no. number number Transistor Push switch V102 2PA1015G Q2PA1015-GNF- SW101 7.5mm KTA11VA004--G(Y) V103 2PC1815G Q2PC1815-GNF- SW102 7.5mm KTA11VA004--G(Y) V107 2PC1815G Q2PC1815-GNF- SW103 7.5mm KTA11VA004--G(Y) V108 2PA1015G Q2PA1015-GNF- SW104 7.5mm KTA11VA004--G(Y) V114 2PC1815G Q2PC1815-GNF- SW105 7.5mm KTA11VA004--G(Y)
  • Page 11 3. Cabinet Part list and Installation of Housing The part list and structural installation of cabinet of Type 2188 and 2168 are respectively described as follows: 3.1 The part list and structural installation of cabinet of Type 2188 Partial list of Type 2188 Cuban cabinet 1•...
  • Page 12 Structural installation Rear cover Remove 1. Pull out power cord from power socket. 2. Remove nine screws as the figure 1 shown. 3. Gently pull out the rear cover from the front cabinet. Chassis Remove 1. Remove the rear cover. 2.
  • Page 13 3.2 The part list and structural installation of cabinet of Type 2168 Partial list of Type 2168 Cuban cabinet 1• Front cabinet 9• Press spring 2• Loudspeakers (2) 10• Rubber gasket (4) Tap screws ST4X12 (8) 11• Metal gasket (4) 3•...
  • Page 14 Structural installation Rear cover Remove 1. Pull out power cord from power socket 2. Remove 10 screws as the fig. 1 shown. 3. Gently pull out the rear cover from the front case. Chassis disassembly 1. Remove the rear cover. 2.

  • Page 15: Signal Flow Diagram

    4. Signal flow Diagram This TV set Consist of main chip LA76814 controlled by Sanyo I C bus and CPU LC863232A . LA76814 is IC dedicated for NTSC, integrated following circuits inside: amplifying and detecting in intermedium frequency, AFC, demodulating of sound intermedium frequency, brightness delay-line, filtering and demodulating of color signal, processing of horizontal-vertical small signals.
  • Page 16 5. Adjustment Test 5.1 I C Bus Adjustment Test 5.1.1 Method of access bus adjustment test menu Using remote controller, press “MUTE”, at same time presses “MENU” on Front cabinet “TEST” characters can display on the TV set screen, i.e. the bus adjustment status has been entered, then press “0”~”9”...
  • Page 17 [M3] MENU MENU3 • MENU3 for vertical and horizontal circuits adjustment test, about H-PHASE V.POSI the method of adjustment test, see “5 Complete set adjustment test”. V.SIZE V.LIN ·H-PHASE: adjustment test item of picture horizontal center. V.SC ·V-POSI: adjustment test item of picture vertical center. OSD.H.DISPLAY ·V-SIZE: adjustment test item of picture vertical amplitude.
  • Page 18 H blank R→Horizontal blanking (right) V.COMP→(Vertical size compensation) Compensating vertical size influenced by contrast. H.Freq→Horizontal frequency (It is unnecessary to adjust in batch production.) FBP.BL.SW→Select working manner of horizontal blanking. 0=Selected IC inside horizontal blanking 1=Selected IC both inside and outside FBP horizontal blanking. [M8]MENU MENU8 •MENU8 for parameters setting...
  • Page 19 Item Range Preset Note Item Range Preset Note English On/Off 0•127 Espannol On/Off 0•127 Portugues On/Off H BLANK L 0•7 On/Off H BLANK R 0•7 S-Video On/Off V.COMP 0•31 START.ON On/Off H.FREQ 0•63 OSD.. CONT 0•3 FBP.BLK.SW 0•1 0•127 Wide 0•127 0•63 Zoom...
  • Page 20 test card (numeric card). a) Adjusting H-SHIFT value, let the picture horizontal center align at horizontal center of tube screen. b) Adjusting V-POSI value, let the picture vertical center align at vertical center of tube screen. c) Adjusting V-SIZE value, let the picture vertical amplitude conform to requirement. d) Adjusting V-LIN value, let the picture vertical linearity conform to requirement.

  • Page 21: Trouble Shooting

    6. Trouble shooting Rectifying and Audio Power Detection Amplifying Rectifying and N602 / 5V N201 Detection T611 Rectifying and N603 / 12V Detection Power Supply Rectifying and H.Dri V.OUT Detection Power Supply Power supply Rectifying and H.OUT Detection 117V Power Supply Complete set power supply outline 6.1 No raster, no picture, no sound General, these failures are produced by power sources, because of which refer to a wider area, so...
  • Page 22 (2) Existing +B 117 V These failures may be caused by abnormal operation of horizontal scan circuit, to confirm which can observe the filament of tube whether bright on. If determined horizontal scan in abnormal operation, look for the failure start from the horizontal drive stage. Search upward to LA76814 with method of checking dc voltage and waveform according to sequence: N201 PIN27/H.OUT port→...
  • Page 23 6.2 Existing raster and no picture Because of the picture video signals and OSD characters display are input to PIN44, PIN15, PIN16, PIN17 of LA76814(N201), so to observe characters on screen of faulted TV can determine the approximate area of fault. Display OSD characters on screen Check 180 V power supply on When searching automatically channels, check...
  • Page 24 6.5 CPU non-operating Check voltage at N101/PIN(42) (STANDBY) =5V Check voltage at Check V604 N101/PIN(16) (X-RAY) =0 V When restart TV, Check voltage at check voltage on N101/PIN(12) negative pole VD2002=9.4 V >10V Check 15V~CPU Check voltage at N101/PIN(17 )(RESET) 5V Supply Check Check...
  • Page 25 7. Overview of IC function 7.1 N801 LC8632XXX Function: microprocessor Symbol Function description Symbol Function description No connected STANDBY STAND BY control output No connected TV/AV TV/AV control output No connected AV1/AV2 AV1/AV2/S-VHS control output STOP Bus control port MUTE MUTE output No connected SPOT KILLER...
  • Page 26 ·Pin No.6: PWM output of volume control ·Pin No.7: NC ·Pin No.8: NC ·Pin No.9: GND ·Pin No.10 and 11: 32 kHz oscillator ·Pin No.12: VDD (5V) ·Pin No.13: Key input MENU TV/AV POWER Function Voltage 0.625 1.25 1.875 3.125 3.75 ·Pin No.14: TEST function input ·Pin No.15: AFT voltage input...
  • Page 27 7.1.2 Keys of the TV set: MENU, TV/AV, VOL-, VOL+, CH-, CH+ 1) Continuously press [MENU] key, the menu will change as follows: a). TV mode → → PIC-ENH → → PICTURE SETUP PRESET b) AV mode PICTURE → SETUP→ PIC-ENH → Normal operation 7.2 N201 LA76814 Function: I C bus control and NTSC small signal processing...
  • Page 28 Symbol Function description Symbol Function description SYNC Synchronous signal VCO COIL Video detection output V OUT Vertical signal output VCO FIL Video detection filtering RAMP FIL Forming and filtering for EXT AUDIO IN External sound frequency sawtooth wave input VCC•H/D• Power supply (horizontal SIF OUT Sound IF output...
  • Page 29 2. Applicable range of input power is 90~220 V ac. 7.5.2 Overview of operation principle of the “green” power supply (refer to fig. 2) ·The operation principle of this power supply is same as general switching power supply. The output voltage is controlled through controlling of the conduction period and duty cycle of switching transistor.
  • Page 30 8. Voltage of IC and transistor N101 LC8632xxx(color bars) Voltage V Voltage V Voltage V N101 LC8632xxx(no signals, blue background) Voltage V Voltage V Voltage V N201 LA76814(no signals, blue background) Voltage V Voltage V Voltage V Voltage V N201 LA76814(no signals, blue background) Voltage V Voltage V...
  • Page 31 N304 TDA7056(no signals, blue background) Voltage V N401 LA7840(color bars) Voltage V N401 LA7840(no signals, blue background) Voltage V N601 MC44608P75(color bars) Normal operation Voltage V 12.3 Standby operation Voltage V 0•5 Change Voltage of transistor (color bars) V103 V107 V108 Voltage V Voltage V...
  • Page 32 Voltage of transistor (no signals, blue background) V103 V107 V108 Voltage V Voltage V Voltage V V114 V203 V302 Voltage V Voltage V Voltage V V501 V502 V604 Voltage V 0.16 Voltage V -0.1 Voltage V V613 V640 V642 Voltage V Voltage V Voltage V V911...
  • Page 33 9. Resistance to Earth of Some Circuits (With multimeter 500 type×1K/red test pen connected to earth) N101 •LC8632XXX• Resistance Resistance Resistance Resistance Value Value Value Value 3.6K 1.6K 1.6K 1.6K 1.5K 3.6K 2.6K 2.6K 1.6K N102 •AT24C04• Resistance Resistance Resistance Resistance Value Value...
  • Page 34 N304 •TDA7056B• Resistance Resistance Resistance Resistance Value Value Value Value 100K N401•LA7840• Resistance Resistance Resistance Resistance Value Value Value Value 0.67K 0.95K 0.8K 0.6K 0.9K 0.5K N601•MC44608P75• Resistance Resistance Resistance Resistance Value Value Value Value 4.4K 3.4K 36K* 95K* *1. To measure with multimeter 500 type, the multiplying factor is [×10K], and the red test pen connected to earth.
  • Page 35 10. Waveform Diagrams at Each Point — 34 —...
  • Page 36 Appendix 1 Explanation of Parts No. of elements The designation of first digit: Complete set Fastener Component Transformer Capacitor Diode Variable resistor Loudspeaker, earphone, microphone Fuse Filter, etc. Mount of wiring Relay R—X Non-standard resistor Conductor C—X Non-standard capacitor Switch Inductor Accessories Transistor...
  • Page 37 Fixed resistor R • • • • • • • • • • • • digits digits: Manufacturer resistance value digit: Shape of resistor digit: Material digit: Error digits: Characteristics Carbon film resistor — Normal Fusible resistor Inflaming +0.05% retarding Glass grazed resistor +0.1% +50ppm/•...
  • Page 38 — 37 —...
  • Page 39 Capacitor C • • • • • • • • • • • • digits: digits: Manufacturer Capacitance value digit: Category digit: Voltage digit: Shape digit: Dimension of capacitor (mm) Temperature 6.3V digit C D M N Others compensated ceramic J.A.G.H dielectric Code...
  • Page 40 — 39 —...
  • Page 41 Non-standard resistor R • • X • • • • • • • • • digit: Material Carbon film resistor Fusible resistor Metal oxide film resistor digits: digits: Serial no. digit: Error digit: Distance of Solid resistor Resistance value 01~79(bare copper Wire resistor +0.05% wire::80~99)
  • Page 42 — 41 —...
  • Page 43 Fuse F • • • • • • • • • • — • digit: Type of fuse Normal delay Fast digits: digit: digit: Multiplying factor Manufacturer Current (µA) digit: Security number Australia digit: Shape Argentina digit: Voltage China code Voltage Egypt AC DC AC/DC...
  • Page 44 — 43 —...
  • Page 45 Variable resistor V • • • • • • • • • • • • digits: Resistance value digits: Type category 1 digit: Material digit 4 digit Type digit 4 digit Type digits: Serial no. Carbon film D6 horizontal D14 horizontal Glass graze handle length,...
  • Page 46 — 45 —...
  • Page 47 Inductor L • • • • • • • — — — • • digit: Manufacturer digit: Designation digits: Inductance value(µH) digit: Error A Vertical digit digits + 5% A.B.D Inductance value Horizontal + 10% C.F.E.G.M Serial no. 001~999 T.N.P.Y + 20% D Flake type When 2...
  • Page 48 Transformer T • — • • • • — — — — • • digits: Serial no. 0001~9999 Second digit: Dielectric material Iron core (for power supply) Magnetic core (for power supply) Horizontal drive digit: Changed serial no. 0~9 digit: Manufacturer Integrated circuit (IC) N •...
  • Page 49 Transistor and MOS transistor Q • • • • • • • — • • • • digit: Integral form digit: Amplified factor indicated directly, Front Second ~8 digit: Type indicated for example: Toshiba O, Y, GR. Code: O, directly, and blank indicated with Front Y, G.
  • Page 50 — 49 —...
  • Page 51 SAW Filter, Filter, Trapper, discriminator, Delay-line, Resonator X • • • • • — — — — — • • digits: Serial no. 001~999 Sound digit: Category digit: Sub-category Filter digit B.C.R.X Trapper digit: Manufacturer Code Discriminator SAW Filter Brightness delay-line digit: Type Ceramic Ceramic...
  • Page 52 — 51 —...
  • Page 53 Socket G • • • • • • • — — — — • digits: Category 1 digit: Manufacturer digit 3 digit Designation TJC1 big size digit: Category 2 digit: Number of contacts TJC2 medium size Vertical TJC3 (small size) XH Number of Number of Code...
  • Page 54 — 53 —...
  • Page 55 Bolt, Screw S • • • • • • • • • • — • digit: Manufacturer digit: Category 1 digit: Category 2 Bolt GB Notch head tap screw GB Cross pan head Bolt SJ Notch head tap screw SJ digit: Category 3 (suitable for Cross pan head with washer components, others indicated with...
  • Page 56 — 55 —...
  • Page 57 Component B • • • • • • • — — — • • 3rd digit: Category Main board unit Graph-words unit 9” 21” digit: C Video unit 12” 22” digit: Category 2nd digit: (housing Interface unit 14” 24” X(chassis) product) Inner-works Keyboard unit...
  • Page 58 Thick film component • • • • • • • • • • • digit: Net type (3 digit:ABC) digit: Category digit: Number of elements in net Pure resistance net digit: A,B Code Quantity resistor, 1...9.A.. 1...9.10... capacitor Pure capacitance net 2n-1 2n digit: C Code...
  • Page 59 Accessories • • • • • • • — — — • • digit: Category2 digit Circuit Tension Complete Rubber SANWAN Ring PVC label Set cushion Terminal plate Support Plastic bag Hollow Sheet mica diagram spring block Press Sponge NANKONG Silicon gel Radiator Instruction...
  • Page 61 Appendix 2 Difference of CRT PHILIPS SEG-HITACHI Tube type A51EFK155X01 A51JFC82X13•C• Main power 117V 110V voltage R951 RFE3R9J5ACDNF RFF1R2J5ACDNF C522 CKX681K2RL-ND CKX471K2RL-ND C514 CMK364J5-K-NP/S CMK394J5-K-NP/S L501 LF-037-2---NJ LF-015-2---NJ R431 RSE821J4ACCND RDD102J4NBCND R639 RDD513J4NBCND RDD473J4NBCND T601 TM-0047----1L TM-0047----0L — 61 —...

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