Sony HCD-XG500 Service Manual - Page 21

Block Diagram – Main Signal Path, Tuner Fm/am, Cd Play, Tape Play, Record, Mic Input - protect

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Page 21 highlights

HCD-XG60/XG500 7-3. BLOCK DIAGRAM - MAIN Section - DISTORTION (Page 22) E DISTORTION ON/OFF SWITCH Q880 - 883 GUITAR AMP IC853 REC-L C (Page 20) J802 GUITAR J801 MIX MIC GUITAR AMP IC852 RV601 GUITAR LEVEL MIC AMP IC850 (1/2) RV602 MIC LEVEL MIC AMP IC850 (2/2) + 2 58 57 R-CH + SUPER WOOFER 72 SPEANA F (Page 22) R-CH L MD OUT R J701 (2/2) MIC IN REC A2 REC B2 CD-L (Page 19) A PB-L (Page 20) B ST-L (Page 20) D J701 (1/2) L MD IN R R-CH L PHONO IN R R-CH PHONO EQ AMP IC601 INPUT SELECT SWITCH, GRAPHIC EQUALIZER CONTROL, ELECTRICAL VOLUME IN D2 66 67 IN C2 IN B2 68 65 IN E2 69 IN A2 IN F2 64 IC101 INPUT SELECT SWITCH SOUND CONTROL CIRCUIT R-CH L VIDEO AUDIO IN R R-CH GAME INPUT AUDIO J804 (2/2) L R R-CH FUNCTION SELECT SWITCH IC181 X0 12 14 X1 X 13 AB 10 9 X501 32.768kHz X502 16MHz J702 (1/2) VIDEO AUDIO IN GAME INPUT VIDEO J804 (1/2) IN1 1 IN3 6 VOUT 10 11 XC-OUT 10 XC-IN 13 X-OUT 493-DATA 47 493-CLK 48 493-LAT 38 DBFB-H/L 7 SW-MODE 34 15 X-IN SYSTEM CONTROLLER (CD MECHANISM CONTROL) IC501 (3/4) 46 FUNC SEL0 45 FUNC SEL1 STK-POWER 1 HP MUTE 93 VIDEO SELECT SWITCH, VIDEO AMP IC191 CTLA CTLB CTLC LOGIC 235 LINE-MUTE 6 AC-CUT 22 RESET 12 J702 (2/2) VIDEO OUT ABC • R-ch is omitted due to same as L-ch. • SIGNAL PATH : TUNER (FM/AM) : CD PLAY : TAPE PLAY : RECORD : MIC INPUT ABC 28 V MUTE PROTECT 27 F-RELAY 3 HP-IN 36 KEY IN2 KEY IN1 60 5 GRAPHIC + EQUALIZER CONTROL F OUT2 42 CIRCUIT + R-CH + L+R 30 KEY OUT 1 6 KEY OUT 2 59 D501 D534 VOL IN2 41 VOLUME CONTROL COMMAND CPU INTERFACE BASS BOOST CONTROL CIRCUIT BUF OUT2 36 DATA CLOCK LATCH BB B2, BB A2 BUF IN2 33 32 34 38, 39 37 DBFB CONTROL SWITCH Q111 FEED BACK SWITCH Q112 R-CH D803 + R-CH BASS WOOFER CONTROL SWITCH Q115 R-CH R-CH (US, Canadian, E) FAN MOTOR DRIVE Q961, 962 M901 (FAN) M -1 -2 R-CH R-CH TM401 FRONT SPEAKER IMPEDANCE USE 4 - 16Ω + L - + R - PROTECT SWITCH Q804 D807 MUTING Q113 R-CH POWER AMP IC801 STANDBY SWITCH Q803, 804, 834 TH831 TEMPERATURE DETECT SWITCH Q831, 832 MUTING CONTROL SWITCH Q802, 803 RESET SWITCH Q801 EVER +5V RESET SIGNAL GENERATOR IC801 R-CH OVER LOAD DETECT Q801, 851 + R-CH DC DETECT SWITCH Q433, 434 D401 OVER LOAD DETECT SWITCH Q432 PROTECT SWITCH Q439 MUTING CONTROL SWITCH Q833 HEADPHONE MUTING Q805, 855 OVER LOAD DETECT SWITCH Q437 PROTECT SWITCH Q431 RY401 FRONT SPEAKER PROTECT RELAY DRIVE Q401, 402 J803 PHONES RESET G (Page 22) 21 21

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HCD-XG60/XG500
21
21
7-3.
BLOCK
DIAGRAM
– MAIN Section –
DBFB CONTROL
SWITCH
Q111
BASS WOOFER
CONTROL SWITCH
Q115
PROTECT
SWITCH
Q804
RESET
SWITCH
Q801
PHONO
EQ AMP
IC601
POWER AMP
IC801
CD-L
J701 (1/2)
A
(Page 19)
(Page 20)
C
(Page 20)
(Page 22)
PB-L
B
SPEANA
F
R-CH
FUNCTION SELECT
SWITCH
IC181
R-CH
VOLUME
CONTROL
CPU
INTERFACE
BASS BOOST
CONTROL
CIRCUIT
INPUT
SELECT
SWITCH
SOUND
CONTROL
CIRCUIT
GRAPHIC
EQUALIZER
CONTROL
CIRCUIT
R-CH
FEED BACK
SWITCH
Q112
R-CH
COMMAND
F OUT2
BUF
OUT2
VOL
IN2
+
+
R-CH
R-CH
R-CH
R-CH
EVER +5V
D803
R-CH
+
+
RV601
MIC AMP
IC850 (2/2)
MUTING
Q113
OVER LOAD
DETECT
Q801, 851
TEMPERATURE
DETECT SWITCH
Q831, 832
DC DETECT
SWITCH
Q433, 434
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC101
IN D2
IN C2
IN E2
IN A2
IN F2
KEY IN2
KEY IN1
KEY OUT 2
KEY OUT 1
L+R
DATA
CLOCK
LATCH
493-DATA
493-CLK
493-LAT
SW-MODE
BB B2,
BB A2
MIC IN
SUPER
WOOFER
REC A2
REC-L
REC B2
R-CH
R-CH
X0
X
A
B
X1
TH831
R-CH
R-CH
+
R-CH
M901
(FAN)
(US, Canadian, E)
R-CH
–
1
–
2
FAN MOTOR
DRIVE
Q961, 962
R-CH
R-CH
OVER LOAD
DETECT SWITCH
Q432
PROTECT SWITCH
Q439
OVER LOAD
DETECT SWITCH
Q437
FRONT SPEAKER PROTECT
RELAY DRIVE
Q401, 402
STANDBY SWITCH
Q803, 804, 834
MUTING CONTROL
SWITCH
Q802, 803
MUTING CONTROL
SWITCH
Q833
HEADPHONE
MUTING
Q805, 855
TM401
J802
J801
L
L
R
R
PHONO
IN
L
R
VIDEO
AUDIO IN
GAME
INPUT
AUDIO
MD IN
J701 (2/2)
L
R
MD OUT
38, 39
D501
D534
D807
D401
RY401
J803
PHONES
+
–
–
+
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (3/4)
+
GUITAR AMP
IC853
27
F-RELAY
3
7
34
STK-POWER
1
HP MUTE
93
LINE-MUTE
RESET
6
12
AC-CUT
22
HP-IN
36
47
48
38
60
5
59
6
2
58
57
42
41
72
36
34
BUF IN2
37
32
33
66
67
65
69
64
IN B2
68
M
L
R
30
+
XC-OUT
X502
16MHz
X501
32.768kHz
XC-IN
X-OUT
X-IN
FUNC SEL0
FUNC SEL1
V MUTE
11
10
13
46
14
13
10
9
12
15
J804 (2/2)
L
R
45
28
PROTECT
DBFB-H/L
GUITAR
MIX MIC
DISTORTION
E
(Page 22)
DISTORTION
ON/OFF SWITCH
Q880
–
883
GUITAR AMP
IC852
MIC AMP
IC850 (1/2)
MIC LEVEL
RV602
GUITAR LEVEL
ST-L
D
(Page 20)
1
6
IN1
IN3
10
VOUT
5
3
2
CTLA
CTLB
CTLC
LOGIC
J804 (1/2)
J702 (1/2)
J702 (2/2)
C
B
A
C
B
A
VIDEO SELECT
SWITCH,
VIDEO AMP
IC191
GAME
INPUT
VIDEO
VIDEO
AUDIO IN
VIDEO OUT
•
SIGNAL PATH
: TUNER (FM/AM)
: CD PLAY
•
R-ch is omitted due to same as L-ch.
: TAPE PLAY
: RECORD
: MIC INPUT
G
(Page 22)
RESET
RESET SIGNAL
GENERATOR
IC801
PROTECT SWITCH
Q431
FRONT SPEAKER
IMPEDANCE
USE 4
–
16
Ω