Akai 21CTU93BC Service Manual

Browse online or download Service Manual for TVs & monitors Akai 21CTU93BC. Akai 21CTU93BC Service manual User Manual

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Summary of Contents

Page 1 - 21CTU93BC

21CTU93BCCRT COLOR TV SET

Page 3

10REPLACEMENT OF MEMORY IC 1. MEMORY IC. This TV uses memory IC. In the memory IC are memorized data for correctly operating the video and deflecti

Page 4

11production doesn't need to carry on M 3~ adjustments of M9. In "M0"~under"M9" appearance press” CALL” the key can get int

Page 5

12I2C standard UOC for export bus control adjustment item default setting 2007-12-05 MI Items Variable Preset recommendation M0 50HZ 60HZ

Page 6

13 BTC 0~63 32 COF 0~1 Cut-off control range 0:normal control range 1:extended control range 1 CHINESE ON/OFF OSD language selection O

Page 7

14 DCXO 0~3 Crystal load electric capacity compensate 2 FSL 0~1 Forced slicing level for vertical sync 0 SSL 0~1 Slicing level for hori

Page 8 - SAFETY PRECAUTIONS

15 DSGLS 0~1 Extra gain selection loudspeaker outputs 0:+0 Db 1:+6 Db 0 NRR 0~1 No red reduction during blue stretch 0 AMLOW 0~1 Audio o

Page 9 - TV Block diagram

16 M.COLOR 0~100 mild Color in pp mode 40 M.SHARP 0~100 mildSharpness in pp mode 40 W.BRT 0~100 factory adjusts Brightness 50 W.CONT

Page 10

174 , LOGO EDIT This software LOGO is a pair of pleased words and customer to edit 2 kinds, at the M_MODE, long press[P.P]the key can get into a pai

Page 11 - SERVICE ADJUSTMENT

18ICs functional description UOC TDA11105-XXXX/TDA11106-XXXX SYMBOL PIN DESCRIPTION IF VO 1 IF video output / selected CVBS output VP2 2 2ND Suppl

Page 12 - Remote Hand Unit keys

SERVICE MANUAL This manual is the latest at the time of printing, and does not include the modification which may be made after the prin

Page 13

19VDDC 40 Supply(3.3V) GND5 41 Ground 5 VPE 42 OPT programming Voltage VDDA 43 Supply voltage(3.3V) BOUT 44 Blue outputGOUT 45 Green outputR

Page 14

20BLOCK AND APPLICATION DIAGRAM TDA7266SA124Vref7YB-TSIN10.22µFVCC133D94AU175B+--+OUT1+OUT1-1514126ETUMIN20.22µF+--+OUT2+OUT2-89S-GNDPW-GND470µF 100nF

Page 15

RiK0352ecnatsiseR tupnI ΩVTMUTEMute Threshold for VCC > 6.4V; Vo = -30dB 2.3 2.9 4.1 Vfor VCC < 6.4V; Vo = -30dB VCC/2-1VCC/2-075VCC/2-0.5VVTST-

Page 16 - 0~16 On delay time 3

LA9302A/8177/LA78041/LA78040 Function : vertical output Symbol PIN Function Symbol PIN Function INV IN 1 Input V OUT 5 Vertical

Page 17

23PURITY / CONVERGENCE ADJUSTMENT PURITY ADJUSTMENT 1. Demagnetize CRT with the demagnetizer. 2. Loosen the retainer screw of the deflection yoke. 3

Page 18

24STATIC CONVERGENCE ADJUSTMENT 1. Input a crosshatch signal. 2. Using 4-pole convergence magnets, overlap the red and blue lines in the cente

Page 20 - TDA7266SA

AKAI 21CTU91BCAKAI 21CTU93BCAKAI 21CTU94BC

Page 21 - D94AU175B

- Content ... 2- Bill of Ma

Page 22 - Vpin.7 (V)

SER DESCRIPTION QTY1 AV6-14 1 XS8012 CH5B-2.5-2DY 3 XS601 XS602 XS7023 CH5B-2.5-4DY 4 XS403 XS703 XS704 XS8044 CH5B-2.5-5DY 1 XS2015 CH7-10-1DY 1 K9N6

Page 23 - Test point Waveforms

SER DESCRIPTION QTYPCB NO.77 130-208-0011 1 L40578 3.0mH 1 L40479 BCK-42-09936 1 T50180 JBC-184-EI19/YDD-EI19 1 T45181 JLC/YDD-600µH 1 L31182 JLC-128-

Page 24 - Fig. 3

SER DESCRIPTION QTYPCB NO.143贴于场IC1144贴于电源管1145RF-2W-1.5Ω-J1 R451146RY-1/2W-120KΩ-J3 R503 R504 R555147RY-1/2W-2.7KΩ-J3 R918 R928 R938148 RY-1/6W-39K-G

Page 25 - (FRONT VIEW)

SER DESCRIPTION QTYPCB NO.4 F22-22R0-031000/JLF-148-ET24 +2 L501 L5025 YDD-UF16/JLF-98-UF16 -1 L5016 10MM -2 W509 W5107 CBB23A-250VAC-0.1µF-M -1 C5018

Page 26

. 7SAFETY PRECAUTIONS 1. The design of this product contains special hardware, many circuits and components specially for safety purposes. For conti

Page 27 - AKAI 21CTU94BC

. 8TV Block diagram TUNER SAWIF IN R I

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