Panasonic TH-42PF20E / TH-42PF20ER Service Manual ▷ View online
TH-42PF20E / TH-42PF20ER
53
13.9. DS-Board (2 of 2) Schematic Diagram
+
+
TERM
SIDE
P
A_ED-
A_OE+
A_ED+
A_EA-
A_EE+
A_EA+
A_OA-
A_OA+
A_EB-
A_EB+
A_OB-
A_OB+
A_EC-
A_OC-
A_EC+
A_OC+
A_CLK-
A_OD-
A_CLK+
A_OD+
A_OE-
SRQ
REMOCON_OUT1
AJ_TXD11
AJ_RXD11
AH_SOS
A_ED+
A_ED-
A_OA-
A_OA+
A_OB-
A_OB+
A_OC-
A_OC+
A_OD-
A_OD+
A_OE-
A_OE+
A_CLK-
A_CLK+
A_EA-
A_EA+
A_EE-
A_EE+
A_EB-
A_EB+
A_EC-
A_EC+
A_EE-
RESET
LAN14V_ON/OFF
15V_ON/OFF
AJ_TXD11
AJ_RXD11
AH_SLOT1_DET
REMOCON_OUT
DS_SOS
3V_SDA3
3V_SCL3
RESET
SRQ
RTC_INT
AUD_R_DS1
AUD_L_DS1
AUD_L_DS1
5V_SDA3
3V_SCL3
3V_SDA3
5V_SCL3
RTC_INT
5V_SDA3
5V_SCL3
5V_SCL3
5V_SDA3
15V_ON/OFF2
S2DETECT
AUD_R_DS1
AH_SLOT1_DET
C3148
10u
6.3V
C3141
10u
16V
C3147
16V
0.1u
0.1u
C3121
50V
15p
C3120
50V
15p
C3140
10u
6.3V
C3151
10u
16V
C3143
10u
6.3V
C3122
16V
0.1u
C3123
5.5V
1.5
C3146
6.3V
47u
47u
D3140
B0ACCJ000048
D3120
B0ACCJ000048
D3142
DZ2J062M0L
D3141
DZ2J062M0L
IC3120
C1DB00001208
1
2
3
4
5
6
7
8
DS1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
57
58
59
60
61
62
63
64
65
66
67
68
56
DS2
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
5V
STB3.3V
LAN14V
STB5V_S
SLOT3.3V
STB5V_S
STB5V_S
LAN3.3V
SLOT9V
9V_M
STB3.3V
SLOT15V
STB5V_S
SLOT5V
VJ3140
PA3140
K5H1022A0031
PA3141
K5H1022A0031
Q3120
B1CBHD000002
G
D
S
Q3121
B1CBHD000002
G
D
S
R3124
2.7k
R3128
100
R3164
0
0
R3127
100
R3151
0
R3176
0
R3155
22
R3122
0
R3177
0
R3130
0
R3148
0
R3152
100
R3156
22
R3147
100
R3150
0
R3126
82
R3154
0
R3144
0
R3129
0
R3149
100
R3125
2.7k
R3171
0
R3153
100
R3123
0
X3120
H0J327200114
SCL
OSCOUT
VSS
OSCIN
VDD
/INTRA
SDA
/INTRB
GND
GND
GND
GND
GND
GND
GND
NC
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
A_IIC_CONT
NC
3V_SCL3
3V_SDA3
SL1_DET
DS_SOS
5VTXD_TU
5VRXD_TU
RTC_INT
REMOCON_OUT
5VNRST
LAN14V_ON/OFF
15V_ON/OFF
AUD_L_OUT
GND
AUD_R_OUT
GND
LAN3.3V
9V_M
STB_5V
5V
5V
NC
STB3.3V
A_OA-
A_OA+
A_OB-
A_OB+
A_OC-
A_OC+
A_OD-
A_OD+
A_OE-
A_OE+
A_CLK-
A_CLK+
A_EA-
A_EA+
A_EE-
A_EE+
A_EB-
A_EB+
A_ED-
A_EC+
A_ED-
A_ED+
TX2-
TX0+
TXCG
TX0-
TX6+
TX5-
TX1+
TX2+
TX4-
TX8+
TX4+
TXC-
TX7+
TX3+
TX1G
TX2G
TX9+
TX0G
TX8-
TXC+
ETX_G3
TX9-
TX3-
ETX_G2
TX3G
TX6-
TX1-
TX7-
TX5+
GND
SLOT9V
LAN14V
GND
GND
GND
STB5V
SRQ
NC(OPEN)
SOS
SYNC GND
PWR_STATUS
GND
HD
PR/R GND
RESET2
PR/R
GND
RESET1
PB/B GND
Y/G GND
LAN14V
CABLE DET
SYNC GND
REMOTE
VD
SLOT5V
SLOT3.3V
SLOT5V
GND
NC
IIC DAT
RSVD
IIC SCL
AUDIO GND
RXD
AUDIO IN L
TXD
AUDIO GND
PLUG DET
AUDIO IN R
SLOT3.3V
GND
GND
SLOT15V
SLOT15V
PB/B
S2DETECT
Y/G
AUD_L/R_DS
CLOCK IC
32.768K
15V_ON/OFF2
S2DETECT
14
13
10
11
16
12
17
18
15
TO
A-BOARD
(A1)
A-BOARD
(A1)
SLOT1
DS-BOARD TZTNP031CEE(2/2)
!
1
TH-42PF20E / TH-42PF20ER
54
13.10. A-Board (1 of 17) Schematic Diagram
+
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
TERM
SIDE
S
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
Thermal Pad
Thermal Pad
A_EA+
A_EA-
A_CLK+
A_CLK-
A_OE+
A_OE-
A_OD+
A_OD-
A_OC+
A_OC-
A_OB+
A_OB-
A_OA+
A_OA-
REMOCON_OUT
15V_ON/OFF
LAN14V_ON/OFF
SL1_DET
5VNRST
5VRXD_TU
5VTXD_TU
DS_SOS
3V_SCL3
3V_SDA3
AUD_L_DS
AUD_R_DS
F15V_MON
A_IIC_CONT
STB_ON
RTC_INT
ALL_OFF1
15V_ON/OFF
A_P_ON/OFF
S2DETECT
A_P_ON/OFF
15V_ON/OFF2
A_ED+
A_ED-
A_EC+
A_EC-
A_EB+
A_EB-
A_EE-
A_EE+
C4951
1u
6.3V
C4952
25V
0.01u
C4910
16V
1u
C4923
16V
1u
C4917
10u
25V
25V
C4904
10u
25V
C4906
10u
10V
C4919
10u
10V
10V
C4921
16V
1u
C4908
16V
1u
C4918
0.1u
0.1u
25V
C4905
0.1u
25V
C4966
10u
25V
25V
C4934
10u
25V
25V
C4937
0.1u
25V
C4932
10u
25V
25V
C4935
10u
25V
25V
C4940
50V
47p
C4936
16V
0.1u
C4933
0.1u
0.1u
25V
C4941
16V
0.1u
C4965
1u
16V
C4968
10u
16V
16V
C4964
16V
0.1u
C4963
6.3V
47u
D4902
B0JCME000092
D4916
B0JCPE000004
D4903
B0JCPE000004
D4901
B0JCPE000004
D4931
B0JCPG000030
D4932
B0BC4R000002
D4908
B0BC5R900001
D4905
B0BC5R900001
D4918
B0BC5R900001
D4921
B0BC5R900001
FL4964
F1J1E104A148
1
2
3
FL4968
F1J1E104A148
1
2
3
*FL4967
F1J1E104A148
1
2
3
FL4966
F1J1E104A148
1
2
3
FL4965
F1J1E104A148
1
2
3
F1J1E104A148
FL4962
1
2
3
F1J1E104A148
FL4961
1
2
3
FL4963
F1J1E104A148
1
2
3
IC4903
C0DBAYY00727
1
GND
2
SW
3
BS
4
EN/SYNC
5
FB
6
PG
7
VCC
8
IN
A1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
57
58
59
60
61
62
63
64
65
66
67
68
56
69
70
A35
1
2
3
4
A9
1
2
3
4
5
6
7
8
9
A10
1
2
3
4
5
6
7
8
9
10
11
A13
1
2
3
4
5
6
7
8
9
10
11
12
13
L4901
G1C8R2ZA0202
L4902
G1C8R2ZA0202
L4903
G1C330MA0363
9V_M
STBY3.3V
F15V
LAN3.3V
15V
1.8V
STBY5V
15V
STBY3.3V
STB1.2V
STBY3.3V
STBY5V
SOUND15V
F15V
STBY3.3V
3.3V
15V
STBY5V
STBY5V
F15V
FAN15V
5V
R4956
R4901
R4910
R4916
R4925
R4926
R4951
R4942
R4912
R4927
R4941
R4940
R4911
R4913
R4928
R4939
PA4931
K5H1022A0031
TP4963
TP4968
TP4971
TP4970
TP4962
TP4960
TP4961
TP4965
TP4964
TP4967
TP4969
TP4966
Q4903
B1DHDC000028
Q4901
DSC200100L
Q4902
DSC200100L
Q4905
DSC200100L
Q4662
DSC200100L
Q4661
DSC200100L
Q4904
DSC200100L
R4905
100k
R4923
150k
R4902
10
R4964
330
R4953
3.6k
R4955
22k
R4662
10k
R4663
10k
R4665
1k
R4919
100k
R4906
31.6k
31.6k
1%
R4921
11k
1%
R4932
22
R4664
12k
R4917
10
R4908
51k
51k
R4305
0
R4306
0
R4904
100k
R4920
100k
R4302
100
R4303
100
R4304
100
R4301
100
R4307
100
R4308
100
R4937
0
R4936
37.4k
37.4k
1%
R4935
46.4k
46.4k
1%
R4961
0
R4963
10k
R4974
0
R4952
4.7k
R4973
0
R4954
10k
R4949
0
R4945
47k
R4946
22k
R4947
10k
R4944
0
R4943
100k
R4934
0
0
R4933
100k
R4938
100k
100k
R4966
330
R4969
10k
R4967
330
R4968
3.3k
R4965
330
1%
R4907
10k
1%
R4922
19.1k
R4661
10k
IC4901
C0DBAYY00369
1
SW
2
BST
3
VCC
4
GND
5
FB
6
PG
7
EN/SYNC
8
IN
IC4902
C0DBAYY00369
1
SW
2
BST
3
VCC
4
GND
5
FB
6
PG
7
EN/SYNC
8
IN
AUD_R_OUT
A_EC-
N.C.
A_OB+
A_EB+
GND
A_OC-
A_IIC_CONT
GND
GND
A_OC+
GND
REMOCON_OUT
N.C.
A_EB-
A_OD-
5VNRST
GND
GND
9V_M
A_OD+
GND
GND
GND
STB_5V
A_OE-
GND
A_CLK-
GND
RTC_INT
A_OE+
GND
GND
GND
5VTXD_TU
3V_SDA3
S2DETECT
GND
GND
5V
5V
GND
LAN14V_ON/OFF
3V_SCL3
LAN3.3V
STB3.3V
GND
A_EE-
15V_ON/OFF
SL1_DET
A_EE+
A_EA+
A_OA-
A_ED+
GND
DS_SOS
AUD_L_OUT
A_OA+
A_EA-
A_ED-
GND
5VRXD_TU
GND
A_OB-
A_CLK+
A_EC+
GND
F15V
GND
F15V
GND
F15V
S15V
GND
S15V
P15V
GND
N.C.
15V_ON/OFF2
ALL_OFF
ECO_ON
NC(STBY5V_ON)
GND
F_STB_ON
STB5V
MAIN_SW_2
MAIN_SW_1
MAIN_SW_2 (5V)
MAIN_SW_1 (Swited_5V)
N.C.
N.C.
N.C.
1
C
F
7
4
5
9
8
A
E
3
2
D
6
B
TO
DS-BOARD
(DS1)
DS-BOARD
(DS1)
TO
P-BOARD
(P6)
P-BOARD
(P6)
TO
P-BOARD
(P7)
P-BOARD
(P7)
TO
S1-BOARD
(S35)
S1-BOARD
(S35)
TO
DS-BOARD
(DS13)
DS-BOARD
(DS13)
A-BOARD TZTNP011CEE(1/17)
!
15V->3.3V
15V->1.2V
15V->1.8V
1
3
2
4
TH-42PF20E / TH-42PF20ER
55
13.11. A-Board (2 of 17) Schematic Diagram
+
+
+
(FIN)
4
3
2
1
P
P
P
P
P
P
P
P
DPMS_HD
HD_PCIN
A_TXD_PC
HD_PC
VD_PCIN
VD_PC
DPMS_VD
RXD_PCI
VD_PCIN
HD_PCIN
FAN_ON/OFF
FAN_CONT1
FAN_CONT2
CVBS
AUD_L_PC
AUD_R_PC
HD_PCIN
VD_PCIN
PB/B
Y/G
PR/R
PB/B_GND
Y/G_GND
PR/R_GND
PB/B
B_PC
G_PC
R_PC
PR/R
Y/G
PB/B_GND
Y/G_GND
PR/R_GND
PR/R_HA
PB/B_HA
Y/G_HA
FAN_SOS
C3276
10V
10u
10u
C4315
16V
0.1u
C4312
16V
0.1u
C3274
10V
10u
C4313
6.3V
1u
C4316
16V
0.1u
C3279
16V
0.1u
C4314
16V
0.1u
C4317
16V
0.1u
C3273
150p
50V
C3278
16V
0.1u
C3275
1000p
50V
C3277
6.3V
1u
C3272
0.1u
16V
C4462
1000p
50V
C4458
50V
47p
47p
C4456
16V
0.1u
0.1u
C4452
16V
0.1u
0.1u
C4460
16V
0.1u
0.1u
C4457
50V
10p
C4453
16V
0.1u
C4461
10V
1u
1u
C4454
1u
16V
C4455
10V
10u
C4451
10u
16V
C3271
10u
16V
C4982
1u
25V
*C4987
10u
25V
*C4988
0.1u
16V
C3293
10u
10V
C3291
10u
16V
C3292
16V
0.1u
0.1u
C4981
220u
25V
C4984
470u
16V
C4311
6.3V
47u
D3272
B0ACCJ000048
D3273
B0ACCJ000048
D3274
B0ACCJ000048
D4981
B0JCME000092
D3271
B0ACCJ000048
D3291
EZJP0V080GA
FL4001
J0MAB0000175
FL3204
J0MAB0000175
FL3203
J0HABB000004
1
2
3
4
FL3201
J0HABB000004
1
2
3
4
FL3202
J0HABB000004
1
2
3
4
IC4451
C1AB00001529
1
SW
2
OUT
3
Vcc
4
IN2
5
GND
6
IN1
C1ZBZ0003985
IC4301
EN
1
2
C1+
3
V+
4
C1-
5
C2+
6
C2-
7
V-
8
DOUT2
9
RIN2
10
ROUT2
11
INVALID
12
DIN2
13
DIN1
14
FORCEON
15
ROUT1
16
RIN1
17
DOUT1
18
GND
19
VCC
20
FORCEOFF
C0DBAZG00034
IC4981
1
VCC
2
OUT
4
INV
5
STBY
3
GND
JK3201
H1
H2
H3
H4
SC
*A5
1
2
3
4
5
A14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
L4982
J0JHC0000096
L3291
J0JHC0000117
L3292
J0JHC0000117
L4451
J0JHC0000117
L4981
G1C101MA0363
L3271
G1C101MA0072
L4452
G1C100JA0031
STBY3.3V
9V_M
9V_M
STBY3.3V
9V_M
9V_M
5V
FAN_VOLTAGE
FAN15V
FAN_VOLTAGE
5V
R3281
R4451
R4453
R4988
R4995
R4996
VJ3202
VJ3201
TP4982
TP4981
TP4311
TP4312
GAP0.3
S3203
GAP0.3
S3202
GAP0.3
S3201
GAP0.3
S3204
Q4451
DSC200100L
Q4983
DSC200100L
Q3291
DSC200100L
Q3271
DSC200100L
Q3273
DSC200100L
Q4981
DSC200100L
Q3274
DSA200100L
Q3272
DSA200100L
Q4452
DSA200100L
Q4982
DSA200100L
1%
R3291
75
75
ERJ6ENF75R0V
R3285
100
R3274
3.3
R4452
220
R3284
100
R3275
3.3
R4458
100
R4454
100
R4459
1k
1%
R4456
127
1%
R4457
430
R3272
4.7k
R3282
0
R4312
100
R3283
0
R3277
4.7k
R4313
100
R3280
3.3
4.7k
R3278
R4316
0
R3271
100
R3279
3.3
R4315
100
*R4997
0
R4994
10k
R4984
10k
R4987
910
910
1%
R4314
100
R4986
10.5k
1%
R4985
2.7k
2.7k
1%
R4993
10k
R4983
47k
*R4998
0
R4982
470
R4989
22k
R3204
0
R3205
0
R3294
33k
R3295
100
R3296
1k
R3293
22k
R3276
100
1%
R4455
330
4.7k
R3273
C0JBAB000715
IC3271
1
NC
2
IN_A
3
GND
5
VCC
4
OUT_Y
C0JBAB000715
IC3272
1
NC
2
IN_A
3
GND
5
VCC
4
OUT_Y
VIDEO
RXD
COMPONENT
Y
Pb
Pr
TXD
DPMS 5V->3.3V
HX SYNC IN
L
H
Y/G
HD
GND
PB/B
GND
L
PR/R
GND
RXD
TXD
5V->
9V->
R
VD
GND
Video
GND
FAN_VOLTAGE
FAN BLOCK
5V
FAN CONT
FAN SOS
TPFAS
14
13
10
11
16
12
17
18
15
A-BOARD TZTNP011CEE(2/17)
!
TO
HX-BOARD
(HX1)
HX-BOARD
(HX1)
TO
PB-BOARD
(PB30)
PB-BOARD
(PB30)
FAN VOLTAGE
CONTROL
CONTROL
RS232C DRIVER
VIDEO SW
2
4
3
1
17
16
14
15
13
11
12
TH-42PF20E / TH-42PF20ER
56
13.12. A-Board (3 of 17) Schematic Diagram
+
+
+
+
+
+
P
P
P
P
P
P
G_PC
P5V_SDA3
VSYNC_ON/OFF
HD-OUT
HD+OUT
HD-OUT
3V_SCL3
PR/R_M
HD_PC
3V_SDA3
VD+OUT
VD+OUT
Y/G_M
P5V_SCL3
HD+OUT
PB/B_M
VD_M
HD_M
5V_VD_M
5V_HD_M
5V_HD_M
5V_VD_M
VD_ADV
HD_ADV
Y/G_HA
PB/B_HA
PR/R_HA
B_PC
R_PC
VD_PC
S2DETECT
P5V_SCL3
P5V_SDA3
C4281
16V
0.1u
C4282
16V
0.1u
C3202
50V
0.01u
0.01u
C3209
50V
0.01u
C3234
0.1u
16V
C3251
50V
1000p
C3237
0.1u
16V
C3229
2.2u
10V
C3221
0.1u
16V
C3222
0.1u
16V
C3235
0.1u
16V
C3212
16V
0.1u
C3218
16V
0.1u
C3233
2.2u
10V
C3228
2.2u
10V
C3246
16V
4.7u
C3238
0.1u
16V
C3253
25V
0.1u
C3264
16V
0.01u
C3259
16V
0.1u
C3249
50V
0.01u
C3215
10V
2.2u
C3247
16V
4.7u
C3207
50V
0.01u
C3236
0.1u
16V
C3241
0.1u
16V
C3231
2.2u
10V
C3262
16V
0.1u
C3208
50V
0.01u
C3244
16V
1u
C3240
0.47u
16V
C3232
2.2u
10V
C3205
16V
0.1u
C3223
0.1u
16V
C3258
16V
0.1u
C3239
0.47u
16V
C3219
16V
0.1u
C3252
50V
1000p
C3206
50V
0.01u
C3243
16V
1u
C3211
50V
0.01u
C3210
50V
0.01u
C3216
16V
0.1u
C3230
2.2u
10V
C3250
16V
0.01u
C3213
16V
0.1u
C3263
10u
6.3V
C3248
16V
0.47u
C3225
0.1u
16V
C3226
0.1u
16V
C3224
0.1u
16V
C3266
10V
1u
1u
C3261
10u
16V
16V
C3227
0.1u
16V
C3217
6.3V
6.3V
47u
C3204
16V
47u
C3254
16V
470u
C3255
16V
470u
C3201
16V
16V
47u
C3256
16V
470u
D3202
B0ACCJ000048
D3204
B0ACCJ000048
D3203
B0ACCJ000048
D3201
B0ACCJ000048
IC3202
C0CBCDD00025
1
Vout
2
NC
3
Cn
4
GND
5
Cont
6
NC
7
NC
8
Vin
IC3201
C1AB00003160
1
VCC1
2
YIN4
3
GND
4
PBIN4
5
VCC1
6
NC
7
PRIN4
8
GND
9
YIN3
10
VCC1
11
PBIN3
12
PORT3
13
PORT2
14
PRIN3
15
PORT1
16
PORT0
17
YIN2
18
VCC1
19
PBIN2
20
GND
21
PRIN2
22
VCC1
23
YIN1
24
GND
25
PBIN1
26
VCC1
27
PRIN1
28
GND
29
VDD
30
ADR
31
SDA
32
SCL
33
DGND
34
VIN4
35
VIN3
36
VIN2
37
VIN1
38
GND
39
HIN4
40
HIN3
41
HIN2
42
HIN1
43
VCC2
44
HOUT
45
VOUT
46
VIN
47
VDET
48
HIN
49
HDET
50
VERTADJ
51
VERTIN
52
GND
53
VD+OUT
54
HD-OUT
55
HD+OUT
56
VCC1
57
GCLAMP2
58
GCLAMP1
59
GND
60
YOUT
61
VCC1
62
PBOUT
63
GND
64
PROUT
L3203
G1C100K00020
L3201
G1C100K00020
3.3V
9V_M
5V
9V_M
9V_M
5V
3.3V
5V
5V
R3210
R3234
R3235
R3236
R3237
R3254
Q3211
B1CBHD000002
G
D
S
Q3212
B1CBHD000002
G
D
S
Q3202
DSC200100L
Q3203
DSC200100L
Q3201
DSA200100L
1%
R3218
75
R3241
10k
R3212
330k
1%
R3216
75
1%
R3256
1.5k
R3213
330k
R3221
56
1%
R3253
22k
R3251
100
R3223
56
1%
R3265
75
R3259
0
R3258
180
R3214
330k
R3215
56
1%
R3263
75
R3248
2.2k
1%
R3244
3k
R3208
0
1%
R3257
680
1%
R3239
22
R3255
100
1%
R3261
75
R3230
56
R3250
2.2k
R3225
56
1%
R3247
4.7k
R3232
2.7k
1%
R3245
2.2k
1%
R3224
75
1%
R3222
75
R3227
0
R3243
0
R3231
56
1%
R3220
75
R3219
56
1%
R3246
4.7k
R3252
2.2k
R3240
2.2k
1%
R3226
75
R3217
56
R4282
0
0
R4281
R3249
100
R3206
0
R3233
2.7k
C0JBAA000377
IC4281
1
IN_B
2
IN_A
3
GND
5
VCC
4
OUT_Y
C0JBAB000715
IC4282
1
NC
2
IN_A
3
GND
5
VCC
4
OUT_Y
VIDEO BLOCK
VIDEO/Sync SW,LPF,Sync Sep
VP
HP
HP
5V->3.3V
LEVEL SHIFT
LEVEL SHIFT
VP
25
27
20
24
19
22
26
23
21
A-BOARD TZTNP011CEE(3/17)
!
9V->5V
5V->3.3V
LEVEL SHIFT
LEVEL SHIFT
12
15
16
13
17
14
11
22
21
25
24
27
28
23
26
Click on the first or last page to see other TH-42PF20E / TH-42PF20ER service manuals if exist.