Sony HCD-GX470, Service Manual

Page: 24 / 106

HCD-GX470/GX570
24 24
HCD-GX470/GX570
7-2. BLOCK DIAGRAM – MAIN Section –
AUDIO IN R-CH
J702
HP IN
C
CD-L
A
L451
BIAS OSC
MUTING
Q305
HRPE1
(REC/PB/ERASE)
(DECK-B)
HP1
(PB)
(DECK-A)
L-CH
R-CH R-CH
L-CH
R-CH R-CH
R-CH
MUTING
Q307
MUTING CONTROL
SWITCH
Q305, 306
MUTING
Q401
R-CH
MUTING
CONTROL SWITCH
Q400, 407
REC CONTROL
SWITCH
Q409, 410
R-CH
REC AMP
IC401
PB AMP
IC301
ERASE
BIAS OSC
Q453
REC SWITCH
Q403
PB SWITCH
(DECK-B)
Q303
REC BIAS
SWITCH
Q451, 452
+9V
R-CH
R-CH
PB SWITCH
(DECK-A)
Q301
R-CH
+
DECK-A/B
SELECT SWITCH,
REC/PB
SELECT SWITCH
Q405, 406, 408
TUNER (FM/AM)
AM
FM ANT
AM ANT
TUNER-L
TUNER-R
PLL DO
R-CH
PLL DI
PLL CLK
PLL CE
FM75
Ω
COAXIAL
ANTENNA
45 I-LC23003-DI
39 TAPEL
1 TUNERL
16
DATA
15
CLK
2 10 AUXL 11 VINL TONEOUTL 14 OUTL
40 CDL
O-BIAS
43 O-LC23003-DO
44 O-LC23003-CLK
42 O-LC23003-CE
4
O-REC/PB
2
O-REC-MUTE
3
O-R2S15207FP-
DATA
58
4
SAOUT
I-VACS
63
O-AUDIO-CLK
57
I-HP/AUDIO IN
61
12 BB12
13 BB22
F
SW OUT
E
OUT
G
BASS AGC
3 RECOUTL
I-HALF-A
D921
BAND-PASS
FILTER
Q111, 112
+
R-CH
R-CH
BASS AGC
Q113
D031
INPUT SELECTOR, TONE CONTROL,
ELECTRICAL VOLUME
IC101
CAMP+
M
TAPE MECHANISM
DECK BLOCK
A-HALF
B-SOL
B-HALF
A-PHOTO
B-PHOTO
B-REC-F
CAPSTAN/REEL
MOTOR DRIVE
Q701, 704
TRIGGER PLUNGER
DRIVE (DECK-B)
Q702, 705
30
O-SOL-B 35
A-SOL
TRIGGER PLUNGER
DRIVE (DECK-A)
Q703, 706
O-SOL-A 34
O-MOTOR 33
I-HALF-B 27
I-RELL-A 31
I-RELL-B 28
I-REC-SW
O-TCM-SYNC
29
I-TCM-SYNC 73 36
TAPE MECHANISM
DECK CONTROLLER
IC701 (1/2)
SYSTEM CONTROLLER
IC901 (2/4)
: TUER (FM/AM)
: CD PLAY
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: TAPE PLAY (DECK-A)
: TAPE PLAY (DECK-B)
: REC
: XM
: AUDIO IN
5
SC_RX_IN
3
SC_TX_OUT
O-XM-TXD
51
I-XM-RXD
50
7
CDM_SEL
9
ERR_IRQ#
O-XM-DTIC-CMD
49
I-XM-IRQ
41
11
RST#
O-XM-DTIC-RESET
46
O-XM-POWER
47
O-XM-POWER3.3
8
19
18
COMM_RX_N
COMM_RX_P
LINE AMP
IC051
XM RECEIVER
IC001
D/A CONVERTER
IC041
J001
(XM)
3
2
1
D+
D–
VCC
22
23
COMM_TX_N
COMM_TX_P
5
PDN
2
3
BICK
SDTI
1
4
MCLK
LRCK
39
37
I2S_CLK
I2S_DA
11
AOUTL
10
AOUTR R-CH
43
41
I2S_OCLK
I2S_LRCLK
B+ SWITCH
Q304, 305
O-XM-MUTE
TXD RXD CMD IRQ RESET
POWER
POWER3.3
MUTE
TXD RXD
CMD
IRQ
RESET
POWER
POWER3.3
MUTE
48
XM
+3.3V
+3.3V
B+ SWITCH
Q001, 003
XM
+5.2V
(GX570)
MUTING
CONTROL
Q303
MUTING
Q301
(GX570)
(Page 25)
(Page 25)
(Page 25)
(Page 23)
(Page 25)