Diagrams; Block Diagram - Sony XM-3001SXD Service Manual

XM-3001SXD/6001GXD
SECTION 3

DIAGRAMS

3-1. BLOCK DIAGRAM

PRE AMP
IC1(2/2)
JK1-1
5
7
L(MONO)
6
INPUT
JK1-3
L
OUTPUT
(THROUGH)
CNT1
SW1
L TEST TONE GEN
TEST
IC3(1/2)
TONE
HIGH LEVEL
INPUT 1
R
PRE AMP
IC1(1/2)
JK1-2
3
1
R
2
INPUT
JK1-4
13V
R
OUTPUT
(THROUGH)
TM1
FUSE 1-3
POWER
+12V
CONTROL 12 VCC
Q12,13
GND
OSC
TM2 LED4
REV POWER
Signal path
: AUDIO
FILTER AMP
IC2(1/2)
1
AMP LOW BOOST AMP
IC3(2/2)
IC2(2/2)
5 7 5
7
6
VR1-1
VR3-1 VR3-2
LEVEL
VR2
VR1-2
LOW BOOST
LEVEL
(40Hz)
DC-DC CONVERTER
PT1
T1
IC6
ON/OFF
DRIVE
C1
ON/OFF FET1-3
8
CONTROL
PWN
C2
CONTROL ON/OFF
11
ON/OFF
CONTROL
DRIVE
FET4-6
OUT
CTL
13
2
1
3
AMP PHASE AMP LINE AMP
IC4(2/2) IC4(1/2) IC5(2/2)
5 7 2
1 5 7
3
VR3-3 VR3-4
FILTER
VR4
PHASE
B+ REG
(40Hz)
Q3
XR-6001GXD ONLY
B- REG
Q4
B+ REG
Q1
B+
B- REG
Q2
B-
10 10
B+
LINE AMP
IC5(1/2)
DRIVE POWER
AMP AMP
AMP Q23-26 FET10-12
2
Q18,19
LPF
1
3 21,22,31
DRIVE POWER
AMP AMP
Q27-30 FET7-9
8 4
OVER LOAD
B-
DETECT
Q35
2 3
OVER LOAD
DETECT
IC8
7
B+ REG
Q20
GND GND
B- REG
+17V
CHANGE B- CHANGE
Q32,33
Q5,PTC2 Q36,PTC1
-17V
13
LED
DRIVE
FAULT DETECT Q39,42
IC7(4/4)
LED3
OVER
10
CURRENT
Q16
THERMAL DETECT
IC7(3/4)
THERMAL
AMP
9 14
Q7–9
LED
DRIVE
Q14,15
THR1 THR2 THR3 LED1
THERMAL
TM3
LPF
L+R
AMP
SPEAKER
Q17,34
OUT
TM4
OFFSET
DETECT
Q10
R+L
LED
DRIVE
Q11,43
LED2
OFF SET
B+ CHECK
13V
IC7(1/4),(2/4)
1 5
2 6