![Philips 107E51/87 Скачать руководство пользователя страница 51](http://html.mh-extra.com/html/philips/107e51-87/107e51-87_service-manual_312629051.webp)
Repair Flow Chart (Continued)
V20 107E5
F. TDA9112a
Check List
Basic check
Vcc > 9V
during startup
24.EWDRV
26. HDRV
1,2
Vsync,Hsync
23 Vout
inhibit pin28 output
if pin14 is pulled to
ground by 7613,7614
Pin3= Hunlock = floating
Pin5 = Hpll2 = 0V
pin6 = HDRV = floating
pin8 = BDRV = flaoating
Pin23 = Vout2 = floating
pin16 = CLBL= Hi
a pin14 amplify pin5 and it compare to pin4
b. Pin15 generate the saw_tooth wave
c. Pin16 input voltage for the square output waveform
d. Pin28 pwm output to 7601 & 7602 base
if active
Pin12
CLBL=hi
if no exist
14.15.16,28
B+ control
25. Xray
(from LOT)
12. HFLB
(from H.defl)
to H_deflection.
7601 base
Vcc=pin29=12V
gnd =pin27=0v
Vertical blank will be activated = hi
1.pin5 = softstart pll2 = 0V
2.pin3 = pll1 is unlock in searching mode
3.pin12 = HFLB no exist
4.pin25 = Xray once actived
5.pin29 = Vcc < 9V
3. V-BLK
to H_deflection
east/west control
7602 base
differential input
to 7401 pin 1, 7
the input sync from
cpu pin 40,41
51
http://jdwxzlw.5d6d.com/?fromuser=华盛维修
家电维修资料网,免费下载各种维修资料
Содержание 107E51/87
Страница 17: ...9 Go to cover page 17 V20 107E5 Wiring Diagram http jdwxzlw 5d6d com fromuser 华盛维修 家电维修资料网 免费下载各种维修资料 ...
Страница 31: ...Block Diagram 31 9 Go to cover page V20 107E5 http jdwxzlw 5d6d com fromuser 华盛维修 家电维修资料网 免费下载各种维修资料 ...
Страница 35: ...Main Panel C B A B 35 9 Go to cover page V20 107E5 http jdwxzlw 5d6d com fromuser 华盛维修 家电维修资料网 免费下载各种维修资料 ...