Service Guide
Service Guide Service Guide
3. NO SOUND Check audil output signal of I501 #8 NG : Go to the figure E OK : Go to the figure F E SF102 SAW FILTER 33V 5V U101 TUNER SCL SDA #2 #3 #8 #9 #12 Check SIF input signal Check IF AGC voltage #13 I701 MICOM #50 #51 #14 Check clock/data signal I501 #6 Check Audio output signal X701 4MHz Check the crystal F Check Vcc of the Sound AMP Check Audio output signal SOUND B+ 16V #1 #2 C606 SPEAKER 3W 8ohm Audio IN C602 #4 I601 TDA7267A #3 R612 C601 Q601 RC610 MICOM #42 Audio MUTE H:Mute L:Normal Check Audio signal in Check H:Mute L:Normal
4. NO COLOR composit video in #26 Check CVBS waveform Check R/G/B signal I501 #43 R OUT #44 B OUT Check the crystal #53 #45 G OUT X502 5. NO VERTICAL DEFLECTION Check the voltage (25V) Check Sawtooth voltage I501 #62 Vertical output MICOM #44 C305 VCC #6 #9 #2 #3 I301 #7 #10 D303 C306 25V Check vertical signal RC310 Inver Input #8 #3(Output) Vertical D.Y Check the waveform
- Page 1 and 2: Service Guide Colour Television CHA
- Page 3 and 4: PRODUCT SAFETY SERVICING GUIDELINES
- Page 5 and 6: SUBJECT : IMPLOSION 1. All direct v
- Page 7 and 8: ! "# " $ " "% $# $# $ && $ '
- Page 9 and 10: 6. GEOMETRY 6.1 VERTICAL CENTER 1)
- Page 11 and 12: ST92195B 32-64K ROM HCMOS MCU WITH
- Page 13 and 14: ST92195B - GENERAL INFORMATION GENE
- Page 15 and 16: ST92195B - GENERAL INFORMATION 1.2
- Page 17 and 18: 12/202 ST92195B - GENERAL INFORMATI
- Page 19 and 20: ST92195B - GENERAL INFORMATION 1.2.
- Page 21 and 22: ® STV223XD/223X/224X BUS CONTROLLE
- Page 23 and 24: STV223XD/3X/4X Pin N° STV224X/8X S
- Page 25 and 26: STV223XD/3X/4X BLOCK DIAGRAM (STV22
- Page 27: 2. NO PICTURE Check the wave of I50
- Page 31 and 32: ! "" # $ % "" # %&! '
- Page 33 and 34: % " " '" " " '" % " " '" " " '" %
- Page 35 and 36: % *#+ %%# $ $#'%# % *#+ ! %%
- Page 37 and 38: Mechanical Exploded View 11 1
- Page 39 and 40: Alignment Instructions SVC v0 R BIA
- Page 41 and 42: Electrical Parts List LOC PART CODE
- Page 43: Video Audio
4. NO COLOR<br />
composit video in<br />
#26<br />
Check<br />
CVBS waveform<br />
Check<br />
R/G/B signal<br />
I501<br />
#43<br />
R OUT<br />
#44<br />
B OUT<br />
Check<br />
the crystal<br />
#53<br />
#45<br />
G OUT<br />
X502<br />
5. NO VERTICAL DEFLECTION<br />
Check<br />
the voltage (25V)<br />
Check<br />
Sawtooth voltage<br />
I501<br />
#62<br />
Vertical output<br />
MICOM<br />
#44<br />
C305<br />
VCC<br />
#6<br />
#9 #2<br />
#3<br />
I301<br />
#7<br />
#10<br />
D303<br />
C306<br />
25V<br />
Check<br />
vertical signal<br />
RC310<br />
Inver Input<br />
#8<br />
#3(Output)<br />
Vertical<br />
D.Y<br />
Check<br />
the waveform
Change language