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Repair Flow Chart (Continued)
107T5
F. TDA9112A
Check List
24.EWDRV
26. HDRV
1,2
Vsync,Hsync
23,13 Vref/Vout
pin3 = Vblk = floating
Pin5 = Hpll2 = 0V
pin6 = HDRV = floating
pin8 = BDRV = flaoating
pin12 = Vout1 = floating
pin13 = Vout2 = floating
pin16 = CLBL= Hi
if active
Check 6806
Check pin 12
pulse
25. Xray
(from LOT)
12. HFLB
(from H.defl)
to H_deflection.
7601 base
Vcc=pin29
gnd =pin7=pin27=0v
to H_deflection
east/west control
7602 base
differential input
to 7401 pin 1, 7
the input sync from
cpu pin 33,34
79