Related Manuals for Konka KL26AS21Q
Summary of Contents for Konka KL26AS21Q
- Page 1 LCD TV SERVICE MANUAL Modle list KL26AS21Q，KL26AS23Q，KL26AS25Q KL27BS23Q，KL32AS21Q，KL32AS22Q KL32BS23Q，KL32AS25Q，KL32BS28Q KL37BS21Q，KL37AS22Q，KL37AS23Q KL40BS21Q，KL42AS23Q KONKA GROUP CO,LTD. Digital Flat Display Division...
-
Page 2: Important Service Safety Information
IMPORTANT SERVICE SAFETY INFORMATION Operating the receiver outside of its cabinet or with its back removed involves a shock hazard. Work on these models should only be performed by those who are thoroughly familiar with precautions necessary when working on high voltage equipment. -
Page 3: Specification
A. SPECIFICATION System : PAL I D/K B/G, SECAM D/K B/G L/L’ Channel : VHF~ Low BAND ： 0 CH（46.25MHz） ~ S9 CH（161.25MHz） VHF~ High BAND ： S10 CH（168.25MHz）~ S41 CH（463.25MHz） ： E21CH（471.25MHz）~ E69 CH（855.25MHz） UHF BAND Antenna Impedance : 75Ω(Unbalance) Audio Output Power : Size 26/27... -
Page 4: Adjustment Manual
B. ADJUSTMENT MANUAL TEST NOTE 1. Please follow the pointed test steps and choose the right test equipment to conduct adjustment, otherwise good effect of Unit could not be obtained. The unit should be warmed up for 30 minutes before adjustment and every parameter should be adjusted repeatedly till the optimum value obtained, the pointed voltage value should be ensured during test to get satisfied test result. - Page 5 Update PC,ALL-11 1. Please refer to appendix 5.6 if HDCP KEY Debug Tool there is abnormal phenomenon. 1. Enter factory menu : Press MENU Enter factory button on the remote control, then menu Press PRE button per 5 times。 1. Enter factory menu， Select “VGA IIC SELECT”...
- Page 6 1. .Enter factory menu, Select “Color c.VGA Color HDTV Video Enter black and Temp and Signal Generator white signal, Temp”, Select”7500”, chromaticity white-balanc VG848 Enter User menu, coordinates of white to fit the7500; Select “Color calibrate Color Signal Select”Memory” chromaticity adjust Generator Temp.
- Page 7 Y,Pb,Pr HDTV Receiver SDTV: ATSC HDTV Play DVD 1.Screen is clear and fluent, Audio 576P/480P Tuner SDTV/HDTV checks if the output is normal。 HDTV: Component Cable (Y,Pr,Pb) 720p/1080i 1.Apiece Mode. Screen is clear and PC Mode Please fluent. VGA Cable refer to appendix 2.
- Page 8 5. Appendix 5.1 Power Supply Board/ M/B Voltage confirmation 5.1.1 The input and output characteristic test of power 5.1.2 Intention of test: Check input and output to find if short circuit. 5.2 Checking Method: Use Multimeter (VICTOR VC9801) of resistor to check No/Yes short circuit. Number Item Test Point...
- Page 9 5.3.7 Back light control signal (BKLON) of XS806 has high level (above 3V) or not, if not, check whether fault soldered or short circuit happened。 5.3.8 If back light lamp is on while there is no display, check N001 and N504’s reset circuit and the output of the oscillator to confirm the CPU and SCALER are working or not.If RGB is abnormal, check N504;If RGB is working correctly and the other channel is abnormal ,please check N504.
- Page 10 Z101 Z101 M3953M M3953M R451 R451 2.7uH 2.7uH UOC_VIFIN2 TV_R_PIN85 4 R450 R450 2.7uH 2.7uH UOC_VIFIN1 TV_G_PIN86 4 +5VA1 +3.3VA +1.8VA +1.8VA R452 R452 2.7uH 2.7uH TV_B_PIN87 4 IF_OUT Z102 Z102 C434 0.1uF C434 0.1uF M9352M M9352M SC1_RIN N401 N401 C435 0.1uF C435 0.1uF Video1...
-
Page 11: Wiring
MARK1 MARK1 MARK2 MARK2 MARK3 MARK3 MARK4 MARK4 MARK5 MARK5 MARK6 MARK6 MARK7 MARK7 12VU mark mark mark mark mark mark mark mark mark mark mark mark mark mark xs805 pin1 and pin5 swaped F800 F800 XS805 XS805 HOLE HOLE HOLE HOLE HOLE... - Page 12 XS201 XS201 R204 R204 R211 R211 M_LOUT_PIN60 R203 47 R203 47 M_ROUT_PIN61 R206 R206 +5VA C217 C217 +5VA D201 D201 D200 D200 R215 10K R215 10K 1N4148_NS 1N4148_NS MUTE_H V202 V202 R205 22K R205 22K C200 C200 3.6V 3.6V MUTE BC847 BC847 47uF/16V...
- Page 13 L604 L604 +5VA +5VA L600 L600 +5VA 10uH 10uH 10uH 10uH C663 10uF/16V C663 10uF/16V C651 10uF/16V C651 10uF/16V RCA YPBPR/PC RGB INPUT N600 N600 R601 R601 TO MST6151A C659 0.1u C659 0.1u N608 N608 C635 0.1u C635 0.1u HDMI-AUDIO-R S1AIN HD_Y +5VA...
- Page 14 XS605 XS605 VGAIN_R L618 L618 R620 R620 C649 473 C649 473 RIN0 7 FB/0805 FB/0805 VGAIN_G L619 L619 R629 R629 C656 473 C656 473 GIN0 7 FB/0805 FB/0805 L620 L620 R630 R630 C621 473 C621 473 BIN0 7 FB/0805 FB/0805 R681 R681 C655...
- Page 15 CUP_5V C013 C013 C001 C001 L001 L001 C014 C014 CUP_5V 4.7u/16V 4.7u/16V 47U/16V 47U/16V CUP_5V reset pulse Minimum 100us, R001 R001 RP001 RP001 active low RP002 RP002 R002 R002 D001 D001 RP003 RP003 RP004 RP004 4.7K 4.7K 4148 4148 N001 N001 4.7K 4.7K...
- Page 16 +3.3V V c c 3 . 3 f o r N805 N805 +3.3AVDD AVDD_DVI +3.3V VDDP D3.3V L516 L516 +3.3V d i g i t a l VOUT +3.3AVDD AVDDPLL2 CBW321611V121B/NC CBW321611V121B/NC C863 C863 + 3 . 3 V f o r C893 C893 C548...
- Page 17 +2.5V_DMQ +2.5V_DMC N507 N507 尽量靠近DDRAM和MST6151中间 DDR_128Mb_TSOP66 DDR_128Mb_TSOP66 尽量靠近DDRAM和MST6151中间 RP503 RP503 MVDD L510 L510 MDATA0 RP10X4 RP10X4 MDATA8 +2.5V +2.5V_DMC DQ15 MDATA1 MDATA9 VDDQ VSSQ MDATA2 MDATA10 DQ14 MDATA3 MDATA11 DQ13 SBA0 RP10X4 RP10X4 C578 C578 C575 C575 C574 C574 C583 C583 SBA0 VSSQ...
- Page 18 +5VA R330 R330 SC1_BIN R331 R331 SC1_GIN R332 R332 SC1_RIN R333 R333 R334 R334 R335 R335 D650 D650 D651 D651 D652 D652 C303 C303 C302 C302 C301 C301 BAV99 BAV99 BAV99 BAV99 BAV99 BAV99 100pF 100pF 100pF 100pF 100pF 100pF XS618 XS618 RGB&Composite Full SCART...