Jckb (1/3) And Keyb Assys - Pioneer DVR-233-S Service Manual

1

3.3 JCKB (1/3) and KEYB ASSYS

A 1/3
JCKB ASSY (VWV2100)
A
B
V+5V
V+5V
CN102
VKN1240-
DBGP2
DBGP2 1
DBGP1
C
2
DBGP1
DBGP0
DBGP0 3
R109
RESET 4
100
GND 5
RXDGL
RXD1 6
TXDGL
TXD1 7
GND 8
V+5V
9
GND
D
E
HST_TO_M
DAT_TO_M
DAM_TO_T
ASCK
HSM_TO_T
XRST1
F
A 1/3
16
1
2
A 2/3
MRST
2-B3
R144
HST_TO_M
100
80 79 78 77
A 3/3
3-C3
81
TEXTV
82
C119 C134
R145
C120 *** 83
2.2/50 1K
0.1 84
85
blank
86 blank
87
blank
C121 88
GND
0.1 89
VDD3
R158
DBGP2
100 90
DBGP2
R159
DBGP1
100 91
DBGP1
R160
DBGP0
100 92
DBGP0
93 blank
94
blank
95
blank
96
blank
97
blank
DAT_TO_M R146
100 98
DAM_TO_T R147
100 99
ASCK R148
100 100
1 2 3
HSM_TO_T
V+5R8E
D103
1SS355-TRB
R129
22K
GND
V+5M
C112
0.1 YF
R169
0
GND
GND
XRST1
1-C3
DVR-231-S
2
3
GND
A 2/3
GND
76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58
81. CVBSIN 50. blank
82. GND 49. blank
83. FILTSLC 48. XRGB
47. PSMUTE
84. VDDVCO
IC101
(PMC002A8)
TUNER CONTROL
98. DAT_TO_M 33. AMUTE2
99. DAM_TO_T 32. COMPMUTE
100.ASCK 31. MUTEV
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
0.1
C115
R164
1 2
1M
R120
***
X101
X102
GND
GND GND
GND
V+5V
V+5V
R155
10 k
GND GND GND
3
4
GND
V+5M
57 56 55 54 53 52 51
50
49
48
47
46
XTHROU
45
S1
44
EPGEXT
43
RGBSEL
42 SQU
SQUEEZE
41 LET
LETTER
40
VDD4
C116 0.1
39
GND
38
SWSTBY
37
YVSEL
36
SELV3
35
SELV2
34
SELV1
33
32 COMPMUTE
MUTEV
31
26 27 28 29 30
V+5M
GND
R131
R134 4.7K
4.7K
SCL
3-C6
A 3/3
SDA
3-C6
XRST1
1-C2
A 2/3
SDET1
2-C4
KEY2
1-C4
V+5R8E
R170 D107 R171
0 0
GND 1SS355-TRB
GND
R223
0
L204
***
LAU220J-TA
GND
R172 D106
0
1SR154-400-TRB
GND GND
GND
4
A 2/3
AMUTE2
2-C4
V+5F
V+5V
V+5FP
V+5M