Sony VPL-CS5 Service Manual page 121

GB LT1765EFE (IC3201)
BOOST 2
0.005Ω
3
V IN
4
DRIVER
5
POWER
SW
SWITCH
6
8
GND
9
2.5V BIAS
REG
INTERNAL VCC
GB LTC1772CS6 (IC3202)
6
0.5µA
VIN
0.15V
0.35V
VOLTAGE VREF
VIN
REF
0.8V
UNDERVOLTAGE
LOCKOUT
VPL-CS5/CX5
CURRENT SENS
AMP
SLOPE
∑
COMP
0.35V
1.25MHz
S 14 SYNC
OSC
FF
R
13 VC
CURRENT
COMP
12 FB
ERROR INTERNAL
AMP VCC
1.2V
7µA
3µA
11 SHDN
SHUTDOWN 1.33V
COMP
5 4
VIN
SLOPE
COMP
0.3V
ICMP
RS1
SWITCHING
R
LOGIC AND
Q
BLANKING
S
CIRCUIT OSC
SHORT-CIRCUIT DET
0.3V
FREQ
FOLDBACK
SLEEP
BURST
VREF
COMP
+60mV
VIN
OVP
SHUTDOWN
COMP
VREF
0.8V
EAMP
1.2V
1 2 3
GB GB
GB MCZ3001D (IC3100)
REMOTE
VSENSE 1 VSENSE
GND 5
GB TL431BCDR2 (IC3102)
REF A
8
1
K
6-33 6-33
18 8
OVLD VREF OVP TSD REG
LEVEL
SHIFT
CONTROL
LOGIC
LATCH
COUNTER
SS OSC
F/B TIMER
OCP
7 4 3 2 6
A NC
7 6 5
2 3 4
A A NC
14 VB
16 VG (H)
15 VS
10 VC2
12 VG (L)
11 PGND
9 OCP