Sony HT-GT1 Service Manual page 48

HT-GT1
IC4002, 4005 BD00GA3WEFJ-E2
8 7 6 5
OCP
SOFT
TSD
2
1 3 4
IC4004 TPS54260
BOOT 1
BOOT
CHARGE
VIN 2
UNDERVOLTAGE THERMAL
LOCKOUT SHUTDOWN
SHUTDOWN
LOGIC
ENABLE
COMPARATOR
ENABLE
THRESHOLD
EN 3
SS/TR 4
RT/CLK 5
– PANEL Board –
IC401 BU9795AKS2
39 38 37
SEG24 40
SEG25 41
SEG26 42
SEG27 43
SEG28 44
COMMOM
SEG29 45
DRIVER
SEG30 46
SEG31 47
SEG32 48
LCD BIAS
SELECTOR
SEG33 49
SEG34 50
LCD VOLTAGEGENERATOR
COM0 51
COM1 52
1 2 3 4
48
BOOT
UNDERVOLTAGE
LOCKOUT
OVERLOAD
RECOVERY
MAXIMUM CLAMP
PULSE SKIP
PWM
COMPARATOR
LOGIC
&
PWM LATCH
CURRENT
SENSE
SLOPE
COMPENSATION
OSCILLATOR FREQUENCY
WITH PLL SHIFT
36 35 34 33 32 31 30 29 28 27
SEGMENT
DRIVER
COMMOM BLINK TIMING
DDRAM
COUNTER GENERATOR
COMMAND
DATA DECODER
SERIAL INTER FACE
IF FILTER
OSCILLATOR
5 6 7 8 9 10
10 PH
9 GND
8 COMP
MAXIMUM
CLAMP
VOLTAGE
REFERENCE
+
+
– 7 VSENSE
ERROR
AMPLIFIER
OVER VOLTAGE
UNDER VOLTAGE
6 PWRGD
LOGIC
26 SEG12
25 SEG11
24 SEG10
23 SEG9
22 SEG8
21 SEG7
20 SEG6
19 SEG5
18 SEG4
17 SEG3
16 SEG2
15 SEG1
COMMAND
REGISTER 14 SEG0
POWER ON
RESET
11 12 13