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HCD-RG88
7-4.
BLOCK DIAGRAM – DISPLAY/KEY CONTROL/POWER SUPPLY Section –
FL601
FLUORESCENT
INDICATOR TUBE
BAND-PASS
FILTER
IC602
SPEANA
E
X
4 LINE IN
(Page 25)
6 REC IN
L+R
ROTARY
VOLUME
ENCODER
S748
LED-TAPE,
LED-TUNER,
LED-MD-VIDEO,
LED-CD,
LED DRIVE
LED-GAME,
Q601 – 605,
LED-DISC1,
Q791 – 793, 795
LED-DISC2,
LED-DISC3,
LED-REC
S751, 752, 754 – 762,
S765 – 780, 782 – 792
FLUORESCENT
INDICATOR TUBE DRIVER,
KEY CONTROL
IC601
11
73 ALL-BAND
80 VOLUME-A
79 VOLUME-B
83 X1
I2C-DATA
60
30 IIC-DATA
X601
I2C-CLOCK
61
29 IIC-CLK
4MHz
RESET
77
41 GC-RESET
82 X0
D794
LED DRIVE
75 STBY-LED
Q794
S749
74 POWER-KEY
73 DISPLAY-KEY
S750
DISPLAY
REMOTE CONTROL
4 SIRCS
RECEIVER
IC603
15 X-IN
X502
16MHz
13 X-OUT
10 XC-IN
X501
32.768kHz
11 XC-OUT
D604 – 608,
D791 – 793, 795
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (4/4)
+3.3V
CD +3.3V
REGULATOR
Q102
CD D+5V
CD A+5V
CD-POWER
38
D +3.3V
STBY-RELAY
84
RESET
RESET SIGNAL
RESET
12
SWITCH
GENERATOR
Q601
IC601
AC-CUT
20
26
26
MAIN POWER
TRANSFORMER
+VL
RECT
D541
–VL
+VH
RECT
D543
–VH
– 33V
REGULATOR
– VG
Q941
RECT
D977
VF1
TO FLUORESCENT
INDICATOR TUBE
FL601
VF2
D920 – 922
M +7V
+9V
RECT
M +9V
REGULATOR
D914 – 917
IC961
+10V
A +10V
RECT
REGULATOR
TC +10V
D906 – 909
IC101
+5V
B+ SWITCH
REGULATOR
Q911, 912
IC911
+4V
RECT
D +4V
REGULATOR
D918, 919, 923, 924
IC951
D501
D503
D502
D504
POWER ON/OFF
RELAY DRIVE
Q971
SUB POWER
TRANSFORMER
+4V
RECT
EVER +4V
REGULATOR
D972 – 975
IC971
D505
T910
(Mexican, Argentina)
VOLTAGE
SELECTOR
S901
(E, Singapore)
RY971
T972
AC IN
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