Sony VPL-PX11 Service Manual page 88

QB (1/3) MAX4223 (IC808, IC809, IC810)
N.C. 1 8 SHDN
IN _ 2 7 VCC
_
+
IN + 3 6 OUT
VEE 4 5 N.C.
QB (2/3) IRMF2-A0T-OTP (IC400)
RESET
4
IRIN1 2
U1 5 IROUT
IRIN2 3
7
IREN1
MODE SELECT
6 INPUT
IREN2
V 1 8 V
DD SS
6-12
QB QB
QB (3/3) CXA1846BN-T4 (IC703)
20 19 18 17 16 15
–
8dB STEP 1dB STEP
+
VOLUME VOLUME
LATCH ZC
LATCH
CONTROL DET
SHIFT
REGISTER
8dB STEP 1dB STEP
+ VOLUME VOLUME
–
1 2 3 4 5 6
QB (3/3) TDA2000D2 (IC702)
PGND 1
LOUTN 2
3
GAIN0
PVDD 4
2
LINN 5 GAIN
AGND 6
COSC 7
RINN 8
PVDD 9
SHUTDOWN 10
ROUTN 11
PGND 12
6-12
QB (3/3) LM358PSR (IC704)
OUTPUT 1
14 13 12 11
INPUT 1 (-)
INPUT 1 (+)
GND
VCT
BUFFER
7 8 9 10
GAIN
ADJUST
+
GATE
_
DRIVE
_
+
+ _
GAIN
ADJUST
_
GATE
+ DRIVE
BIASES
AND
REFERENCES
OC
START-UP
DETECT
PROTECTION
OC
LOGIC
RAMP
DETECT
GENERATOR
THERMAL VDD OK
GAIN
+
ADJUST GATE
_ DRIVE
_
+
+ _
_
GATE
GAIN
DRIVE
+
ADJUST
1 8 VCC
OUTPUT 2
2 7
3 6 INPUT 2 (-)
4 5 INPUT 2 (+)
24 PGND
23 LOUTP
22 BYPASS
21 PVDD
20 LINP
19 VDD
18 ROSC
17 RINP
16 PVDD
15 GAIN1
14 ROUTP
13 PGND
VPL-PX11