Sony HCD-PZ1D - Page 73

HCD-PZ1D
73
IC006 MM3203BFBE
IC007 SI-8008TM-TLS
– AMP Board –
IC401 STK416-130F-E
– LCD CTRL Board –
IC001, 003 TK1
11
18CSCL-G
IC004 TK11133CSCL-G
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
TEMPERATURE
DETECTION
150qC
FB15
FB2
7
VIN
2
VREF
6
SW2
1
DRIVE
VREF
LOGIC
CURRENT
DETECTION
GND
4
SW1
3
DRIVE LOGIC
CURRENT
DETECTION
ERROR
AMP
ERROR
AMP
OSC
500kHz
SOFT
START
SOFT
START
CNTRL8
STARTUP
CONTROL LOGIC
IN
1
SW
2
SS
5
ADJ
4
LATCH
&
DRIVER
ERROR AMP
COMPARATOR
OSCILLATOR RESET
OVERCURRENT
PROTECTION
THERMAL
PROTECTION
REFERENCE
VOLTAGE
GND
3
ON/OFF
SOFT
START
PREG
+
+
+
–
–
5 6 8 9 10 11 12 13 14 15 16 17
-PRE
-VH
OUT_CH1+
OUT_CH1-
OUT_CH2+
OUT_CH2-
+PRE
SUB
GND
IN-Lch
NF-Lch
STBY
4
-OFF_SET
18 19
NF-Rch
IN-Rch
2 3
-VL
+OFF_SET
1
+VL
7
+VH