Read Sony WX-GT90BT / WX-GT90BTE / WX-GT99BT / WX-GT99BTM Service Manual online
WX-GT90BT/GT90BTE/GT99BT/GT99BTM
42
– KEY Board –
IC901 PT16512-LQ
IC1300 OZ539IGN-A1-0-TR
BST 1
LX 2
FLT_USB
9
VIN 3
EN_SYS 4
USBOUT 5
ISET_USB
10
RT
15
VREF
16
FB_USB 6
USBIN
2V
UVLS
7
SYNC 8
GNDA
14
VIC_USB
11
SS_SYS
13
EN_USB
12
HDR
+
OSCILLATOR
REFERENCE
GENERATOR
OVER CURRENT
PROTECTION
VS
SEL
Q
S
R
R
ADJUSTMENT
GENERATOR
CHARGE
PUMP
OVER-CURRENT
LIMIT
USB FAULT
PROTECITON
VOUT_SYS (USBIN)
FAULT PROTECTION
+
–
+
–
+
–
+
–
–
GP1/SEG1/PW1 1
GP2/SEG2/PW2 2
GP3/SEG3/PW3 3
GP2/SEG2/PW2 2
GP3/SEG3/PW3 3
GP4/SEG4 4
GP5/SEG5 5
GP6/SEG6 6
GP7/SEG7 7
GP8/SEG8 8
GP5/SEG5 5
GP6/SEG6 6
GP7/SEG7 7
GP8/SEG8 8
SEG9 9
SEG10 10
SEG11 11
SEG12 12
SEG13 13
SEG14 14
SEG15 15
SEG16 16
SEG13 13
SEG14 14
SEG15 15
SEG16 16
SEG42
42
SEG41
41
SEG40
40
SEG39
39
SEG38
38
SEG37
37
SEG48
48
SEG47
47
SEG46
46
SEG45
45
SEG44
44
SEG43
43
SEG36
36
SEG35
35
SEG34
34
SEG33
33
SEG17
17
SEG18
18
SEG19
19
SEG20
20
SEG21
21
SEG22
22
SEG23
23
SEG24
24
SEG25
25
SEG26
26
SEG27
27
SEG28
28
SEG29
29
SEG30
30
SEG31
31
SEG32
32
INHB
61
VLCD1
57
VDD
56
SEG52/OSC
60
VSS
59
VLCD2
58
SEG51
55
SEG49
49
SEG50
50
COM1
54
COM2
53
COM3
52
COM4
51
CLOCK
GENERATOR
SEGMENT DRIVER
&
LATCH
COMMON
DRIVER
CS
62
SI
64
CLK
63
SHIFT
REGISTER
ADDRESS
DETECTOR
PWM
DRIVER
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