Schematic Diagram - Main Board (1/3) (Except Rg490: Mx/Rg590: Mx Models) - Sony HCD-RG490 Service Manual

7-14. SCHEMATIC DIAGRAM – MAIN Board (1/3) (Except RG490: MX/RG590: MX models) –
CN991
19P
VF
VF
-VFL
D-GND
TCM-SNYC TCM-SYNC
VDD(EVER)
VDD(SWITCHED)
STBY-LED STBY
KEY0 KEY0
SIRCS RMS
VFD-RESET R996 100 VRE
VFD-DI R999 100 VDO
(Page 56)
VFD-DO VDI
VFD-CLK VCL
VFD-CE R997 100 VCE
M+9V
LED-GND
M-GND
M-GND
CN091
9P
RESET
VDD
AVREF
FLMD FLMD
VSS
(NC)
VSS
SCK
SI
SO
A1
A2
A3
A4
A5
(Page 39)
A6
JW339
B1
B2
(Page 38)
HCD-RG490/RG590
(1/3)
R352 R350
1k(RG490:AEP/RG590:AEP,UK) 1k(RG490:RU/RG590:RU)
470k(RG490:EA/RG590:EA) 10k(RG490:E2,E51,EA,AR/RG590:E2,E51,EA,AR)
R355 R351
2.2k(RG590:E2,E3,E51,EA,AR) 2.2k(RG490:RU/RG590:RU)
4.7k(RG590:AEP,UK,RU) 10k(RG490:E2,E51,AR/RG590:E2,E51,AR)
22k(RG490) 100k(RG490:EA/RG590:EA)
I-MIC-DET
R354
1k(RG590)
22k(RG490)
(RG490/RG590:AEP,UK,RU)
R343 R348
22k 22k
C-E3
R356
1M
R342
1k
I-HP-AUX
R344 R341
22k 10k
C-E2
VACS
R346
PROTECT
1k
KEY0
R347 R345
22k 10k
C-E1
STREAM
STBY
C-12
C-11
TCM-SYNC
VRE
VCE
VDO
VDI
VCL
KEY0
RMS
Q901
2SC3052
RESET SWITCH
R907 C908
47k 0.1
R908 C909
47k 0.1
D910
1SS355TE-17
RESET SIGNAL
GENERATOR
IC902
PST3429UL
See page 57 for Waveforms. See page 66 for IC Pin Function Description.
RG490:RU,E2,E51,EA,AR/
RG490:AEP,EA/
RG590:RU,E2,E51,EA,AR
RG590:AEP,UK,EA
R355 R351
R352
R354 R350
I-HP/
AUDIO IN
R349
I-SUFFIX
10k
C918 0.001
I-VACS
R922 220k
I-PROTECTOR
R913 1k
I-KEY0
I-CD-ENCODER
R353 10k
I-MODEL
I-STREAM
SYSTEM CONTROLLER
O-STBY-LED
R981 100
PD7BF0547GGC (S)
O-MP3-CLK
R974 100
I-MP3-DATA
O-MP3-DATA
R972 100
I-TAPE-SYNC
O-VFD-RESET
O-VFD-CE
C923 220p
O-VFD-DATA
R973 100
I-VFD-DATA
R982 470
O-VFD-CLK
R911 1k
I-WAKEUP
C926 220p
I-XSIRCS
-IN
R905 R909
10k 22k
D905
1SS355TE-17
Q902
2SC3052
AC DETECT
R935 C911
10k 0.001
C904 R932
0.1 2.2k
R910 10k
37 37
C925
100p
RG490:AEP/
C924
100p RG590:AEP,UK
R925
1k
R961
1k
R980 R920
100 470k
R952
47k
R956 100
I-SCOR
R957 100
I-
XTUNED
R959 100
I-OPEN-SW
R970 100
I-CD-NUMBER-SENS
R975 100
O-TM-F
R976 100
O-TM-R
R969 100
O-LM-F
R967 100
O-LM-R
O-XRST
IC901
O-D-MUTE
-UBT-A O-XLT
O-MP3-CS/
O-MP3-LP
R965 100
I-MP3-REQ
O-XLAT/
O-MP3-STB
R963 100
I-MP3-ACK
O-MP3-XLAT/
O-MP3-CS
O-MP3-RESET
O-XTCN
O-FRONT-SP-RELAY
O-SWR
O-SYS-XMUTE
R953
10k
Q903
KTA1271Y-AT
REGULATOR
R903
C906 10k
10
50V
Q904
2SC3052 R912
C903 1k
0.47
50V
C902
10 R904
50V 2.2k
R902
C901
100
X902 D901
16V
16MHz UDZW-TE17-4.7B
C913
R901
1p C916
100k
47000
C920 D902
5.5V
1p MC2836
R914
10k
C917 R936
0.1 22k
Note: IC901 on the MAIN board cannot exchange with single. When
HCD-RG490/RG590
Ver. 1.1
C391
0.1
M+9V 13
M-GND
M-GND
C-LR LM-R
C-LF LM-F
C-TR TM-R
C-TF TM-F
C-E1 E-1
C-E2 E-2
(Page
C-E3 E-3
33)
C-SE TBL ADDRESS SENS
D+3.3V
C-OS OPEN SW
1
C-7
C-OS
C-SE
C-TF
C-TR
C-LF
C-LR
C-8
C-4
C-10
C-14
C-15
C-13
C-9
MP3-RST
C-1
FSP
O-SWR
SYS-M
Q903,904
D947
1SS355TE-17
R949 R950
10k 4.7k
D943
MC2838
0
D923
R948
MC2840
2.2k R944 R946
D921
220k 0
MC2840
B3
R951
B4
220 R947
220k R945 C921 R941
220 2.2 R942 2.2k
50V 10k
(Page 38)
C922
4.7 R943
50V 4.7k
A7
A8
(Page 39)
IC901 is damaged, exchange the entire mounted board.