Philips V40 107P5 Service Manual page 37

h t t p : / / j d w x z l w . 5 d 6 d . c o m / ? f r o m u s e r = S N v Û ~ ô O î
F. TDA9112A
Check List
PIN12. HFLB
(from H.defl)
PIN2. Xray
(from LOT)
Pin8. HDRV
Pin11.EWDRV
pin12,13 Vout1/Vout2
Pin14,15
Vsync,Hsync
[ ¶ u 5~ ô O î • D e ™ • Q ÿ Q M • 9 N • } T y Í ~ ô O î • D e ™
Repair Flow Chart (Continued)
Vcc=pin9=12V
gnd =pin7=pin25=0V
Check pin 12
pulse
if active
to H_deflection.
7605 base
to H_deflection
east/west control
7612 base
differential input
to 7401 pin 1, 7
the input sync from
cpu pin 33,34
Check 6806
pin3 = Vblk = floating
Pin5 = Hpll2 = 0V
pin6 = HDRV = floating
pin8 = BDRV = flaoating
pin12 = Vout1 = floating
pin13 = Vout2 = floating
pin16 = CLBL= Hi
V40 107P5
9
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37