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HCD-RG490/RG590
25
25
HCD-RG490/RG590
7-3. BLOCK DIAGRAM – AMP/VIDEO Section –
OUT
BUFFER
E
BASS AGC
G
SW OUT
F
POWER AMP
SBSO, WFCK,
SCOR, EXCK
B
MUTING
Q251
OVER LOAD
DETECT
Q441
OVER LOAD
DETECT
Q501
R-CH
MUTING
Q272
BUFFER
Q271
BUFFER
Q276
LINE AMP
Q277
STANDBY SWITCH
Q489 (RG490)
Q489 – 491 (RG590)
DC DETECT
Q481, 482
IC251 (EXCEPT RG490: MX/RG590: MX)
IC251 (RG490: MX/RG590: MX)
IC441 (RG490)
IC441 (RG590)
+
+
TEMPERATURE
DETECT
Q483, 484
TEMPERATURE
DETECT
Q503, 507
R-CH
R-CH
R-CH
TH441
+
+
+
POWER AMP
IC501
MUTING
CONTROL SWITCH
Q261
O-SYS-XMUTE
21
O-STK-MUTE
5
I-PROTECTOR
64
O-SWR
22
+
R-CH
PROTECTOR
Q485
RELAY DRIVE
Q486, 488
+
PROTECT
DETECT
Q487
FAN MOTOR
DRIVE
Q043 – 045
FAN MOTOR
DETECT
Q046
RY441
C
HP IN
H
PROTECT
–1
–2
R
L
+
–
–
+
RELAY B+
D
RDS-DATA, RDS-CLK
RY501
D035
M
M001
(FAN)
SPEAKER
PHONES
JK441
+
–
SUB WOOFER OUT
JK501
RELAY DRIVE
Q502
SUB WOOFER
SWITCH
Q274
R-CH
J701
SYSTEM CONTROLLER
IC901 (3/4) (EXCEPT RG490: MX/RG590: MX)
IC901 (3/4) (RG490: MX/RG590: MX)
: TUNER (FM/AM)
: VIDEO
SIGNAL PATH
R-ch is omitted due to same as L-ch.
DC DETECT
Q505, 506
49
O-CDG-MUTE-DATA
/I-RDS-DATA
48
I-CDG-DET
46
O-VMUTE
41
O-CDG-RST
/I-RDS-CLK
D-RAM
IC1002
VIDEO AMP
IC1006
DQ1 – DQ4
VIDEO MUTING
Q1010
NTSC/PAL
SELECT SWITCH
Q1001
WFCK
SBSO
SCOR
EXCK
5 SFSY
3
44
DATA
4 SBSY
CLCK
2
XWE
13
3
CD GRAPHICS DECODER
IC1001
SCHMITT
TRIGGER
IC1005
25, 27, 29, 30
1, 2, 24, 25
VD0 – VD3
A0 – A7
15 – 22
9 – 12, 14 – 17
VA0 – VA7
WE
XOE
28
22
OE
XRAS
14
4
RAS
XCAS
26
23
CAS
VOUT
37
GDET
6
MUTE
J803
VIDEO OUT
LEVEL SHIFT
Q1005, 1009
54
XRESET
52
DEN
LEVEL SHIFT
Q1002, 1006
+3.3V
60
XO1
59
XI1
X102
14.31818MHz
(RG490: MX/RG590: MX)
RDS-DATA
RDS-CLK
(RG490: AEP/RG590: AEP, UK)
Abbrivation
: Mexican model
MX
RG490: AEP, MX/
RG590: AEP, UK, MX
(Page 24)
(Page 24)
(Page 24)
(Page 23)
(Page 24)
(Page 26)
(Page 24)
Ver. 1.1
Содержание HCD-RG490; HCD-RG590
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