Casio QV-30 Service Manual & Parts List page 13

IC400
51
VCO
VCO
ADJ
48
5.9MHz
47
Clock CKB
OSC
SW
18
PHO
SYF
Control
50
PD
PD
PL1, PL2, PL3
56
Amplitude
MCLK
control
54
TSI1
55
TSI2
8
TSI3
Test
9
TSI4
10
TSI5
11
TSI6
Horizontal
control
1/2
TAB/COG
SW
Vertical
Test
control
circuit
24 36
VDB FRP
Key control
AFT
control
Mode control
Mode Tuning program
set control
VTUCK
POCL
Tuning Up/Down
CK2 Initial
counter
PDM D/A
SELFRB
SYNC
judgment
VSync
Mute
2 28
HCNT AMUTEB
— 11 —
U/V
Analog
control
Channel
bar control
SD
VD
SYNC SYNC
SEP. DET.
HSync
38
CSYNC
39 AFTO
46 VREF
45 U1
44 VH1
43 VL1
41 OUT
35
VMUTEB
34 SW
32
VBAR
33
UBAR
30
TUPCM
29
VLB