akira CT-21PX9R Service Manual
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akira CT-21PX9R, 5 1. Tuner AGC terminal connects to GND. Connect Sweep signal generator (set Sweep signal generator output level to 100dBuv. If it can not obtain 100dBuv, set Level to MAX) to tuner IF output terminal. Sweet oscilloscope V-IN terminal connects to C109 and connect Q102 B pole to the power terminal of R104 through a 10K resistor (shown in figure 2) 2. Apply +20VDC across IC302, viz C320 Positive terminal as shown in figure 2. 3. Adjust L108 to obtain waveform as below.
akira CT-21PX9R, 27 3Y11-21T07(HI)MAIN BOARD NO PART NO PART NAME QTY 1 2100001058 3Y11(HI)AV STEREO ASS FOR RCA JACK 1 2 2100001063 3Y11(HI) AV?SWITCH ASS FOR F/REAR AV 1 3 2100001068 3Y11(HI)CRT BOARD ASS FOR 21" 29.1mm 1 4 2100001130 3Y11(HI)SECAM ASSEMBLY 1 5 2100001197 3Y11(HI)REAR AV JACK ASS FOR RCA STEREO 1 6 2100001694 3Y11-HEAT SINK FOR IC203 1 7 2100001695 3Y11-HEAT SINK FOR IC301 1 8 2100001697 3Y11-HEAT SINK FOR IC402-3w 1 9 2100001699 3Y11-HEAT SINK FOR IC602 1 10 2100012457 3Y11-21T07(AI)MAIN BOARD 1 11 1005-21T042-01 BACK AV BRACKET-(94V-0)W/O POWER LINE 1 12 1018-500218-00 INSULATOR
akira CT-21PX9R, 34 3Y11-21T07(AI)MAIN BOARD NO PART NO PART NAME QTY 1 2100001056 3Y11(AI)AV STEREO ASS FOR RCA JACK 1 2 2100001062 3Y11(AI) AV?SWITCH ASS FOR F/REAR AV 1 3 2100001129 3Y11(AI)SECAM ASSEMBLY 1 4 2100001196 3Y11(AI)REAR AV JACK ASS FOR RCA STEREO 1 5 2901-016032-00 EYELET 1.6 X 3.2 MM 51 6 2901-020030-00 EYELET 2 X 3 MM 6 7 4100-AB1010-T0 CARBON FILM RESIS 100 OHM 1/16-1/6W 5% 12 8 4100-AB1020-T0 CARBON FILM RESIS 1K OHM 1/16-1/6W 5% 7 9 4100-AB1030-T0 CARBON FILM RESIS 10K OHM 1/16-1/6W 5% 26 10 4100-AB1040-T0 CARBON FILM RESIS 100K OHM 1/16-1/6W 5% 3 11 4100-AB1
11 INPUT AND OUTPUT TERMINALS VIDEO AND AUDIO INPUT/OUTPUT TERMINALS 1. Video / Audio input for playback for VCR. 2. Video / Audio monitor output. *Please keep AC cord unplugged when connecting TV system. Model No: CT-21PX9R Version 1.0
25 BOM LIST 3Y11-21T07 NO PART NO PART NAME QTY 1 2100012456 3Y11-21T07(HI)MAIN BOARD 1 2 2100012458 3Y11-21T07(HI) CONTROL BOARD ASS'Y 1 3 2100012460 3Y11-21T07 F.AV BOARD ASS'Y STEREO 1 4 2100012462 3Y11-21T07 SPEAKER ASS'Y FOR STEREO 1 5 0301-21T070-01 POLYFOAM END CAP.R&L (TOP&BOTTOM) 1 6 0404-000054-00 POLY
akira CT-21PX9R, 15 SELECTING PROGRAM Use 0-9 digit buttons to call directly on the program number that you want. If you want to select a double digits program number , firstly press "- / - -" button, then input the two digits. Program number can also be changed by "PROGRAM DOWN" and "PROGRAM UP" buttons. Press "PROGRAM UP" button, program number will increase. Press "PROGRAM DOWN" button, program number will decrease. CHILD LOCKED The TV set can provide the panel key control locked or prevent your children for watching the TV set. SET CHILD LOCKED: Press the "LOCK" button on remote cont
akira CT-21PX9R, 33 3Y11(HI)SECAM ASSEMBLY NO PART NO PART NAME QTY 1 4703-L76420-16 I.C. LA7642N SANYO (SECAM FORMAT COLOR) 1 3Y11(HI)REAR AV JACK ASS FOR RCA STEREO NO PART NO PART NAME QTY 1 26KA-030080-N0 KA 3 X 8 2 2 6100-163154-92 RCA JACK X 3 H-TYPE W/YELLOW,WHITE,RED 2 3Y11-HEAT SINK FOR IC203 NO PART NO PART NAME QTY 1 1505-299800-06 HEAT SINK (90) 1 2 26BA-030080-N0 BA 3 X 8 1 3 4707-L7805E-03 I.C. L7805CV SGS (STABILIZING) 1 3Y11-HEAT SINK FOR IC301 NO PART NO PART NAME QTY 1 1505-21T010-03 H
akira CT-21PX9R, 16 MECHANICA DISASSEMBLIES CABINET BACK REMOVAL 1. Refer to Figure 1,remove7screws. 2. Pull off cabinet back and remove. CHASSIS REMOVAL 1. Remove cabinet back. 2. Discharge the picture tube anode (2 nd anode lead) to the dag coating (picture tube grounding lead). 3. Disconnect Degaussing coil socket (KE). Picture tube socket, Deflection yoke connector (KDY). Speaker connectors (KL and KR),and 2 nd anode lead. 4. Remove chassis completely by sliding it straight back.
akira CT-21PX9R, 39 3Y11-HEAT SINK FOR IC402-3w NO PART NO PART NAME QTY 1 1505-298200-23 HEAT SINK (M6) 1 2 26WM-030080-N0 WM 3 X 8 1 3 4703-L42850-10 I.C. LA4285 SANYO (3W AUDIO OUTPUT) 1 3Y11(AI)CRT BOARD ASS FOR 21" 29.1mm NO PART NO PART NAME QTY 1 4100-AB1030-T0 CARBON FILM RESIS 10K OHM 1/16-1/6W 5% 2 2 4100-AB4720-T0 CARBON FILM RESIS 4.7K OHM 1/16-1/6W 5% 1 3 4100-AD1030-T0 CARBON FILM RESIS 10K OHM 1/4W 5% 1 4 4100-AD1510-T0 CARBON FILM RESIS 150 OHM 1/4W 5% 3 5 4100-AD1820-T0 CARBON FILM RESIS 1.8K OHM 1/4W 5% 3 6 4100-AD2710-T0 CARBON FILM RESIS 270 OHM 1/4W 5% 3 7 4100-AF1520-T0 CARBON FILM RESIS 1.
24 PART LIST NO DESCRIPTION PART NO QTY 1 Name plate 0902-020001-01 1 2 Front cabinet 1001-21T071-01 1 3 Power knob 1009-21T070-01 1 4 Front lens 1007-21T070-01 1 5 Control key knob 1008-21T070-01 1 6 Control PCB 1 7 Screw BT3X10 26BT-030100-N0 9 8 Side AV PCB 1 9 Side AV Inlay 1213-21T070-01 1 10 Speaker 2 11 Screw WA
akira CT-21PX9R, 4 MAIN CHASSIS ADJUSTMENT 1. Tuner AGC terminal connects to GND. Pattern Generator (set signal generator RF output level to 100Bu. If it can not obtain 100dBuv, set level to MAX) outputs 38.9MHz R.F. signal and connects to tuner IF output terminal or pin 5 of saw filter. 2. Connect Digital voltmeter across C227. DC Regulated power supply positive terminal output +20V to pin 1 of IC302 and negative terminal of D608. DC regulated power supply negative. PIF Adjustment (38.9M Figure 1)
akira CT-21PX9R, 26 3Y11-21T07 NO PART NO PART NAME QTY 46 5926-A28305-04 AC LINE CORD 2800mm VDE PLUG W/HOLDER 1 47 1001-21T071-15 F.CAB-#MSG001 W/DIGITAL SOUND 3Y11 ENG 1 48 1002-21T071-02 BACK CABINET - DARK GREY #DG001 1 49 1008-21T070-02 CONTROL KEY KNOB - #MSG001 1 50 1009-21T070-02 POWER KNOB - #MSG001 1 51 5010-51000B-03 21"IRICO C.P.T A51CPAA00X01(E)(N)P.29.1 1 52 0100-21T070-08 CARTON BOX "AKIRA" CT-21PX9R 1 53 0501-142200-06 WARRANTY CARD "
akira CT-21PX9R, 40 Model No: CT-21PX9R Version 1.0 3Y11(AI)AV STEREO ASS FOR RCA JACK NO PART NO PART NAME QTY 1 4100-AB1020-T0 CARBON FILM RESIS 1K OHM 1/16-1/6W 5% 1 2 4100-AB1030-T0 CARBON FILM RESIS 10K OHM 1/16-1/6W 5% 1 3 4300-AF103H-T0 CERAMIC CAPACITOR 0.01uF 50V +80-20% 1 4 4600-C18150-T0 TRANSISTOR 2SC1815Y/2PC1815 (TAPE TYPE) 1 5 5900-G40106-00 COPPER JUMPER 0.6MM DIA. L=40mm 2 3Y11(AI)SECAM ASSEMBLY NO PART NO PART NAME QTY 1 4100-AB1020-T0 CARBON FILM RESIS 1K OHM 1/16-1/6W 5% 1 2 4100-AB1510-T0 CARBON FILM RESIS 150 OHM 1/
akira CT-21PX9R, 12 **CAUTION: Do not connect and turn on both the devices, which are connected to side AV in and rear AV in at the same time, otherwise, a distorted and interference picture will occur. For the Mono model, during the TV reception, or AV mode connected the audio input at R, L, R&L, the speaker will output only the mono sound. And at the AV-R, L output also mono sound output only. OPERATION INSTRUCTION WARNING: The Main Power Switch (No.6 of the Control Location page ) is the Manually Operated Mechanical Switch (MOMS). It is requested to Manually to turn On and Off the Main power. The Remote control can not cut off main volta
akira CT-21PX9R, 6 B+ Adjustment (VR601) 1. Disconnect horizontal load. Connect a light bulb (100W) AC250V across C321). 2. Connect 220V AC 50/60Hz to CN601 and switch on power switch. 3. Test the voltage with digital meter between C321 two terminals. 4. Adjust VR601 to obtain +110V +/-0.5V. Factory Mode Adjustment 1. Press “MENU” key twin, till the “PICTURE MENU” appears, then press “Q. VIEW” key. “MUTE” key to turn on CPU. “TV SET” will go to factory mode. Press “TIMER” key “TO” go to the next Factory menu. Go t
akira CT-21PX9R, 13 1. CHANNEL In this item, you can store the channel number which are watching, and change the channel number by VOL.+/- Buttons (or number keys). 2. SKIP You can set "ON" by VOL.+/- Buttons if you want to cancel the channel number, which you are watching. 3. BAND You can select V-L, V-H or UHF. 4. ASM.SIF You can select 6.0M, 4.5M, 6.5M or 5.5M. *4.5M is only a option for some models. 5. FINE To tune in weak station this item must be used. 6. SEARCH
akira CT-21PX9R, 32 3Y11-21T07 SPEAKER ASS'Y FOR STEREO NO PART NO PART NAME QTY 1 5401-220502-02 HOUSING 02 (TJC3) + 500mm WIRE X 2 1=BLA 2 2 5600-108104-11 SPEAKER 8 OHM 8W MAX 10W 57*165MM 2 F.CAB-#MSG001 W/DIGITAL SOUND 3Y11 ENG NO PART NO PART NAME QTY 1 3900-HIPS00-00 HIPS 940 BACK CABINET - DARK GREY #DG001 NO PART NO PART NAME QTY 1 3900-HIPS00-00 HIPS 2,214.00 3Y11(HI)AV STEREO ASS FOR RCA JACK NO PART NO PART NAME QTY 1 2100001697 3Y11-HEAT SINK FOR IC402-3w 1 2 4707-H40530-16 I.C. HCF4053BP SGS (2 CH SWITCH) 1 3 5400-925000-02 WAFER 2.5mm H
akira CT-21PX9R, 14 1. COL.SYS You can change present color system in this item. AUTO PAL SECAM NTSC1 NTSC2 **SECAM is only an option for some models. 2. SIF.SYS You can select 6.0M, 4.5M, 6.5M or 5.5M. **4.5M is only an option for some models. 1. CLOCK You can adjust the currently time by this item. Press the VOL+ button set hour, and the VOL-button set minute. 2. TIMING If you set the item is TIMING ON, you can set
18 CABINET PARTS LIST Key No Part No Description 1 SK140114NZM00 1 SPEAKER GRILL-SILVE R BLUE #SB001 (PVC) 2 SK100114NZM00 2 FRONT CABINET-METAL SILVER GREY #MSG001W/A V STEREOEN G (3Y07) 94V-0 3 SK100714NZM00 0 FRONTLENS-TRANSPAREN T (REMOT E CONTROLWINDOW) 4 SK100714NZM00 0 FRONTLENS-TRANSPAREN T (LEDWINDOW) 5 SK100914NZM00 1 POWER K
akira CT-21PX9R, 9 PURITY AND CONVERGENCE ADJUSTMENT Color Purity Adjustment 1. Before color purity adjustment, warm up the TV set over 15 minutes and fully degauss. 2. Receive pure white signal in AV status and set the TV receiver dynamic. 3. Go to factory mod MENU2. After write down the values of R-BIAS and B-BIAS, set the values of R-BIAS and B-BIAS zero. 4. Loosen the clamp screw of the deflection yoke and pull the deflection yoke towards color purity Magnetic loop. 5. Adjust color purit
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