GTK-N1BT - Sony Audio Service Manual (repair manual). Page 46

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GTK-N1BT
46
IC803, 804, 806  TPS54332DDAR
– LCD Board –
IC501  PT16511-LQ
EN 3
VIN 2
BOOT 1
7 GND
8 PH
5 VSENSE
SHUTDOWN
LOGIC
BOOT
CHARGE
THERMAL
SHUTDOWN
SS 4
ENABLE THRESHOLD
ENABLE
COMPARATOR
+
+
6 COMP
MAXIMUM
CLAMP
FREQUENCY
SHIFT
GATE
DRIVE
LOGIC
BOOT
UNDERVOLTAGE
LOCKOUT
OSCILLATOR
SLOPE
COMPENSATION
ECO-MODE
MAXIMUM CLAMP
DISCHARGE
LOGIC
VOLTAGE
REFERENCE
PWM
COMPARATOR
PWM
LATCH
6
Q R
S
12 A/V
CURRENT
SENSE
ERROR
AMPLIFIER
SEG1/GP1/PW1 1
SEG2/GP2/PW2 2
SEG3/GP3/PW3 3
SEG4/GP4 4
SEG5 5
SEG6 6
SEG7 7
SEG8 8
SEG9 9
SEG10 10
SEG11 11
SEG12 12
COM2
36
COM1
35
SEG34
34
SEG33
33
SEG32
32
SEG31
31
SEG30
30
SEG29
29
SEG28
28
SEG27
27
SEG26
26
SEG25
25
SEG13
13
SEG14
14
SEG15
15
SEG16
16
SEG17
17
SEG18
18
SEG19
19
SEG20
20
SEG21
21
SEG22
22
SEG23
23
SEG24
24
INHB
45
VLCD1
41
VDD
40
OSC
44
VSS
43
VLCD2
42
SEG35
39
COM4
38
COM3
37
CLOCK
GENERATOR
SEGMENT DRIVER
&
LATCH
COMMON
DRIVER
CS
46
SI
48
CLK
47
SHIFT
REGISTER
ADDRESS
DETECTOR
PWM
DRIVER
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