HCD-RG66T
26
26
7-4.
BLOCK DIAGRAM – DISPLAY/KEY CONTROL/POWER SUPPLY Section –
FL601
FLUORESCENT
INDICATOR TUBE
17
–
12
64
–
66
BAND-PASS
FILTER
IC602
ROTARY
ENCODER
S748
VOLUME
X601
4MHz
52
–
59, 74
LED-DISC1,
LED-DISC2,
LED-DISC3,
LED DRIVE
Q601 – 605,
Q791 – 793, 795
D604 – 608,
D791 – 793, 795
D794
S751, 752, 754 – 762,
S765 – 779, 782 – 792
S749
S750
DISPLAY
X502
16MHz
X501
32.768kHz
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (4/4)
B+ SWITCH
Q911, 912
RECT
D906 – 909
RECT
D914 – 917
CD +3.3V
+3.3V
REGULATOR
Q102
M +9V
M +7V
A +10V
TC +10V
D920 – 922
D502
D504
D501
D503
D +4V
CD D+5V
CD A+5V
D505
RECT
D918, 919, 923, 924
RECT
D972 – 975
LED DRIVE
Q794
T972
SUB POWER
TRANSFORMER
RECT
D543
+VH
–VH
– 33V
REGULATOR
Q941
POWER ON/OFF
RELAY DRIVE
Q971
– VG
RECT
D977
VF1
VF2
RY971
(E)
(Mexican, Argentina)
AC IN
T910
MAIN POWER
TRANSFORMER
RESET
SWITCH
Q601
TO FLUORESCENT
INDICATOR TUBE
FL601
D +3.3V
EVER +4V
VOLTAGE
SELECTOR
S901