JVC LT-26AX5/S Service Manual page 26

MAIN PWB CIRCUIT DIAGRAM (1/4) SHEET1
ST5V
TP328
ZD254 TP327
KDZ5.6V
ZD253
KDZ5.6V
ZD252
KDZ5.6V
ZD251 AD0
KDZ5.6V AD1
ZD250 AD2
KDZ5.6V AD3
H P_IDEN ALE
KEY PWB ASS'Y
1
HP_AL
2
HP_AR
J209-1
3
4
5
(SHEET5)
6
7
K EY0
L302 B-800
C312 L303 B-800 K EY1
100P SCART1_ID
LED PWB ASS'Y
L301 4.7K
4
L304 B-800 DEC_HS
J210-1 3
C315 VDVS
2
OPEN L305 B-800 SCART2_ID
1
(SHEET6) ZD255
KDZ5.6V ST5V
ZD256
KDZ5.6V H P_IDEN
ZD257
KDZ5.6V
J209
'05-01/24 .
CON4P(A2004WV0-4P)
SDA1
SCL1
Q309
SDA2 1 KTC3875S-Y 3
SCL2
R370
10K
NOTE : Refer to the part list for the part number of U303.
MAD0
MAD1 14
Q1
MAD2 15
Q2
16
GND
MAD3
17
Q3
MAD4 18
Q4
MAD5
19
Q5
MAD6
20
Q6
MAD7
Q301
AMC1117-3.3SK(SOT223)
C301 CE301
104 100uF 10V(105 ?
3 2
IN OUT
C1608
D301
TP303
KDS181
1
R386 OPEN
3
2
CE302
100uF 10V
1
D1 FL_RST
2
D4
3
D2
R387
4
D3
OPEN 5
XROM_
6
VDD2.5 VDD3.3
7
VSS
8
VDD3.3 VDD2.5
RN309 B-121A 9
P0.0 FL_PGA
10 U302
P0.1
11
P0.2
12
SDA5550M
P0.3
R390 4.7K
13
P0.4
R304 100
14
P0.5
R307 100 15
P0.6
16
P0.7
R308 100
17
ENE
R310 10K 18
STOP_
R312 (1608) 19
OCF
C306 221
20
EXTIF_
C308 224
21
CVBS BLANK/COR
C309 104 22
VDDA2.5
05/06/09 23
VSSA
R318 2.7K
24
P2.0
25
P2.1 VDDA2.5
26
P2.2
R320 100
27
P2.3
R321 2.7K
28
NC1
R322 100 29
HS/SSC
R327 100 30
VS
R328 100
R330 4.7K
R343 1K
ST5V
R349 R350
4.7K 4.7K
R355
3 1
100
Q305
2N7002 R356
3 1
100
Q304
2N7002
L306
ST5V
B-501(3216)
C319
U303
104
1 8
. +5
2 7
. VCLK
ESCL
3 6
. SCL
R382 R373 ESDA
4 5
. SDA
100 100
ST5V
1
2
3
4
5
6
1 3
Q316
KTC3875S-Y
ST5V
R380
R375 10K
10K
5V
ST5V
4 MCA12
A12
3 MCA15
A15
MCA16
2
A16
MCA18
1
A18
32
VCC
TP301
31
WE/
MCA17
30
A17
R301 OPEN
R391 ST5V
0
U301
A29040AL
CVBS
80
79 Y
A7
78
A13
77
A12
76 C
A14
75 C305 SCART_R
104 SCART_G
74
VSS
73 R392 SCART_B
72 4.7K
71
A15
70
A17
69
A16
68
A18
R305 100 TP306
67
A19
66 SCART_FB
NC6
65 R309 OPEN TP325
RD_
R311 OPEN TP326
64
WR_
63
NC5
62 R313 100 RESET
P1.7
C307 103 TEXT_R
61
NC4
R314 4.7K R315 10 TEXT_FB TEXT_G
60
59 R316 10 TEXT_B TEXT_B
B
58 R317 10 TEXT_G
G
R319 10 TEXT_R
57
R
56 C310 104
55
VSSA
54
NC3
C311 33P SCL
53
XTAL1
52 SDA
XTAL2
51 X301
NC2
6MHZ
#RESET
C316 33P DEC_HS
TEXT_FB R413 100
R332 22
R333 22 #RESET
C461
152PF
R335
22K
1 3
C318
Q303 104
KIA7027AF
SCART_B
SCART_G
SCART_R
5V
L408
B-501(3216)
TXD
1
RXD
2
3
'05-05/27 .
4
ST5V
7657_CTL R393
5
J302
YFM254-05 5PIN
Q311
KTC3875S-Y Q308
KTC3875S-Y
2 2
(No.YA344)2-9 2-10(No.YA344)
V CC3_3
L501 Q502
B-501(3216) GM66102-2.5TC3(TO-252)
1
IN
C501
CE518 104
100uF 16V
V CC3_3
L401
V CC3_3A V CC2_5A
B-501(3216)
C402 C403 C404 C405 C406 C407 CE402 C506 C507 C508 C509 C510
104 104 104 104 104 104 22uF 16V 104 104 104 104 104
U402
TW9918
C460 151P
C409 104 RN413
61 125
MUX0 DRAM_DQ15
C411 104 60 126
MUX1 DRAM_DQ14
C459 151P
64 127
MUX2 DRAM_DQ13
65 2
MUX3 DRAM_DQ12
66 3 RN412
MUX4 DRAM_DQ11
C412 104 67 4
MUX5 DRAM_DQ10
C413 104
5
DRAM_DQ9
C414 104 62 6
MXOUT DRAM_DQ8
63 115 RN415
YIN DRAM_DQ7
V CC3_3 R411 470
57 116
YBFOUT DRAM_DQ6
R412 68
117
DRAM_DQ5
C415 104 56 118
CIN0 DRAM_DQ4
C416 104 RN414
55 121
CIN1 DRAM_DQ3
122
DRAM_DQ2
2 Q403 75 123
. RIN0 DRAM_DQ1
KTA1504S-Y 76 124
GIN0 DRAM_DQ0
80
BIN0
68 106 RN418
FB0 DRAM_AD10
93
DRAM_AD9
C417 104
74 94
RIN1 DRAM_AD8
C419 104
77 95
GIN1 DRAM_AD7
C420 104 81 97 RN417
BIN1 DRAM_AD6
69 98
FB1 DRAM_AD5
R462 4.7K
99
DRAM_AD4
83 100
HS DRAM_AD3
R415 85 101 RN416
RSET DRAM_AD2
680
104
DRAM_AD1
R416 22
9 105
SCLK DRAM_AD0
R417 22 10 107
SDAT DRAM_BA
V CC3_3 R418 4.7K 11
SIAD
R419 0 RA06
112
DRAM_LDM
13 91 RA10
RST DRAM_UDM
R414 33 7 111 RA07
PDN DRAM_WE
RA05
8 110
OE DRAM_CAS
RA08
12 109
TMODE DRAM_RAS
108 RA09
DRAM_CS
RA02 0 RA03
15 92
XI CLK
X401 RA01 0 16 28 RN408
XO VD15
27MHz 29
VD14
R427 1M
30
VD13
14 31
VDDE0 VD12
38 32 RN409
VDDE1 VD11
V CC3_3 L402 C425 C426
102 33
VDDE2 VD10
B-501(3216) 22P 22P
119 34
VDDE3 VD9
128 35
VDDE4 VD8
RN410
36
VD7
CE404 C427 C428 C429 C430 C431
17 37
VSSE0 VD6
10uF 16V 104 104 104 104 104 39 40
VSSE1 VD5
96 41
VSSE2 VD4
RN411
103 42
VSSE3 VD3
120 43
VSSE4 VD2
V CC3_3 L404 1 44
VSSE5 VD1
B-501(3216)
45
VD0
R429 33
26 25
VDD0 VCLK
46
VDD1
CE405 C432 C433 C434 C435 89 18 R432 33
VDD2 FIELD
10uF 16V 104 104 104 104
113 19
VDD3 HSYNC
20
VSYNC
27 21 R438 OPEN
VSS0 HACTIVE
R440 OPEN
47 22
VSS1 VACTIVE
R442 33
90 23
VSS2 DVALID
VC C3_3 L405 114 24 R443 OPEN
VSS3 MPOUT
B-501(3216)
C438 104
70 58
AVD0 VREFP
73 59 C439 104
AVD1 VERFN
CE407 C440 C441 C442 86 54 C443 104
AVD2 VCOM0
10uF 16V 104 104 104 C444 104
79
VREFP1
C445 104
71 78
AVS0 VREFN1
72 82 C446 104
AVS1 VCOM1
V CC3_3 L406 84
AVS2
B-501(3216) R444 OPEN
48
T0
100 88 49 R445 OPEN
AVDP T1
50 R446 OPEN
T2
CE408 C447 R447 OPEN
87 51
AVSP T3
10uF 16V 104 R448 OPEN
52
T4
53 R449 OPEN
T5
MAIN PWB ASS'Y (1/4)
QAL0791-001 [LT-26AX5,LT-26AX5/S]
QAL0792-001 [LT-32AX5,LT-32AX5/S]
VC C2_5 V CC3_3 Q501 V CC1_8
L502 AIC1117A-18CY
B-501(3216)
3 3 2
OUT VIN VOUT
C502 C503
104 CE503 104 C5
100uF 16V 10
CE502 CE504
220uF 16V(105 ? 47uF 16V(105 ?
VC C2_5 V CC1_8
L504 L505
V CC1_8A
B-501(3216) B-501(3216)
C511 CE506 C512 C513 C514 C515 C516 C517 C518 C519 CE
104 22uF 16V 104 104 104 104 104 104 104 104 22
VC C3_3
V CC3_3A
U401
KM416S1020
TSOP-50
33 TDQ15
TDQ14
TDQ13
207
TDQ12
V CC3_3 208
33 TDQ11 2
TDQ10 3
TDQ9
5
TDQ8 6
33 TDQ7 8
TDQ6
9
TDQ5
11
TDQ4 14
33 TDQ3
15
TDQ2
TDQ1 PC_HS 18
TDQ0 PC_VS 19
BLUE+
20
TAD10 BLUE-
33 21
TAD9 SOG 22
TAD8 GR EEN+
23
TAD7 GREEN-
24
33 TAD6 RED+ 25
TAD5 RED- 26
TAD4
TAD3 PB-
27
33 TAD2 PB+ 28
TAD1 Y -
29
TAD0 Y +
30
TBA CA01 OPEN SO Y 31
PR- 32
33 TLDM PR+
33
33 TUDM 36
33 /TWE 37
33 / TCAS C548 104
38
33 / TRAS
39
33 / TCS C549 104 40
33 TCLK
C424 10P
B-300A VD _Y7 VD_C0 RN513 B-300A 41
VD _Y6 VD_C1 42
VD _Y5 VD_C2
43
VD _Y4 VD_C3 44
B-300A VD _Y3 VD_C4 RN515 B-300A 45
VD _Y2 VD_C5
46
VD _Y1 VD_C6
47
VD _Y0 VD_C7 48
B-300A VD_C7 V DHS R571 68
51
VD_C6 VDCLK R572 C550 10P
52
VD_C5 68 53
VD_C4 VD _Y0 RN516 B-300A 54
B-300A VD_C3 VD _Y1
55
VD_C2 VD _Y2
56
VD_C1 VD _Y3 57
VD_C0 VD _Y4 RN517 B-300A
58
VDCLK VD _Y5
59
VD _Y6 60
C436 10P VD _Y7 61
R434 33 V DHS VDVS R573 68
77
R436 33 VDVS
TP404 R574 100 67
TP405 TP503 R576 OPEN
68
ALE R577 B-300
69
TP407 R D R579 B-300 70
WR 71
AD0
72
AD1 73
AD2 74
RESET AD3
75
ADJ_PWM 200
TP501 R580 OPEN 201
TP408
TP409 TP502 R581 OPEN 62
TP410 C552 104 158
TP411
TP412 R584 B-300
76
TP413 R586 B-300 78
C553 33P
202
X501
14.318MHZ
203
C554 33P