Tuner Board: Main Tuner - Philips PB52.1HU LA Service Manual

Circuit Diagrams and PWB Layouts

Tuner Board: Main Tuner

1T04 A2 2T46 D11 2T59 D3 2T64 C3 2T81 F10 2T85 E13 2T89 E10
1T06 C6 2T48 D13 2T61 D2 2T65 D11 2T82 F10 2T86 E8 2T90 E14
1T55 A6 2T51 E13 2T62 C3 2T75 C2 2T83 G10 2T87 E8 2T91 F8
2T45 F13 2T53 C1 2T63 E11 2T80 F11 2T84 E2 2T88 D10 2T92 G13
1 2 3
MAIN TUNER
T01B
A
1T04
TD1736F/FHFXP
TUNER
14 13
15 12
B
5T54
220R
IT89
C
V2
D
IT87
7T56
BC847BW
IT88 3T68
4K7
E
F
G
3139 123 6373.1
1 2 3
PB52.1HU LA
2T97 F11 2TA2 G1 0 2TA6 B8 2TB1 F8 2TB5 E13 3T54 F10 3T58 E8 3T69 E2
2T98 F10 2TA3 D1 4 2TA7 B1 1 2TB2 D3 2TB6 E13 3T55 F10 3T59 E8 3T70 D2
2T99 B13 2TA4 D1 3 2TA8 B9 2TB3 C12 3T50 F14 3T56 E13 3T64 G8 3T74 G10
2TA1 E1 4 2TA5 D1 2 2TA9 B9 2TB4 B1 2 3T53 D4 3T57 D14 3T68 D3 3T75 G10
4 5 6
IF-OUT 1
I O1
2
IGND O2
FT60
3
GND
1T55
M1867D
45M75
AT62
IF-OUT IF-FILTP3
IF-FILTN3
5T61
1
270n IF-OUT
I O1
2
+5V-TUNER IGND O2
3
GND
V2
1T06
M1867D
45M75
IF-FILTP1
IF-FILTN1
FT53
4-MHz
FT52
TUN-AGC
9T51 IT78
SDA-SSB-MUX2
3T77
IT90 9T68
TUN-TDA-SDA
RES
47R
3T53
IT91
9T67
TUN-TDA-SCL
RES
47R
IT76
9T52
SCL-SSB-MUX2
IT80
FM-TRAP-SWITCH
4 5 6
7. 159
3T76 D13 3T83 F8 3TA2 B11 5T55 A11 7T54 A12 7T59 F9 9T63 F10
3T77 D4 3T84 G9 3TA3 B9 5T60 B7 7T55 A10 9T51 D4 9T67 D4
3T81 E14 3T98 F9 5T53 C12 5T61 B4 7T56 D2 9T52 D4 9T68 D4
3T82 E14 3TA1 B11 5T54 B3 6T01 B10 7T57 D11 9T57 F8 AT56 E1 4
7 8 9 10
ATSC
+12V
4
5
7T55
L5970D
8 1
VCC OUT
5T60
4 5
COMP FB
1u5
3 2
INH SYNC
7 6
GND VREF
4
5
ANALOGUE VIDEO
2T88
TDA-IF-IN-N
10n
2T89
TDA-IF-IN-P
10n
FT73
IF-N
FT74
V1
IF-P
TUN-AGC
9T57
TUN-AGC TUN-AGC-MON
2T98
3T54
2T81
IT66
7T59
BC847BW
47p
FT72 IT63
3T83 3T55
CVBS-BO
IT67
68R 8K2
3T74 IT83
470R
3T75 IT75
FT57
2K7
7 8 9 10
AT57 E1 4 FT52 C5 FT60 A6 FT74 F7 IT62 F11 IT67 F9 IT73 F11 IT77 F11
AT58 E1 4 FT53 C5 FT70 C13 FT75 E11 IT63 F10 IT68 E13 IT74 F11 IT78 C5
AT59 F14 FT56 F13 FT72 F8 FT76 E11 IT65 E11 IT69 E13 IT75 G10 IT79 F13
AT62 B5 FT57 G8 FT73 E7 IT60 D11 IT66 F9 IT71 D13 IT76 D5 IT80 D5
11 12 13
+3V3
7T54
LD1117DT50C
5T55
3 2
IN OUT +5V-TUNER
22u
COM
1
+5V-TUNER
IT93
FT70
V1
7T57
TDA9897HL/V2C
3T76
14
VP
Φ IT71
2T46 10n 45 IC 39
OPTXTAL
RES
IF IT92 2T48
2 46
FREF
2T65 470n 5 PROCESSING
IT60
2T63 100n 8 23
SDA
3T56
18 24
NC SCL
35 32
BVS
37 25
ADRSEL
42
6 2T51
A
26 IF1 7
A B
27 OUT1
B IT68
9
A
2T85
29 IF2 10
FT75 A B
30 OUT2
FT76 B
3 2TB5 10n
A
47 IF3 4
TAGC B
31
AUD 2TB6
IT65
33 17
CVBS FILI
EXT 10n
9T63 12 21
1 FMI
16 MPP
2 FT56
36
AGCDIN
1n5 15
EXTFILO
2T80
330R IT73 IT74 13
VIF
11
220n TOP2
IT62 19
FM LF
2T97 100n IT84 38
SYN1
RES IT77 1 28
2T82 SYN2 CAF1
IT79
20 34
2n2 CDEEM CAF2
GND GNDD GNDA
2T83
4n7
11 12 13
IT83 G10 IT89 B3 IT93 C12
IT84 F11 IT90 D4
IT87 D2 IT91 D4
IT88 D2 IT92 D13
14 15
T01B
A
B
C
D
3K3
2TA3 100p
4-MHz
100p
3T57 100R
SDA-SSB1
100R
SCL-SSB1
AT57
10n IF-FILTN 1
2TA1 10n AT56 IF-FILTP1
E
2T90 10n
10n
3T82 180R
3T81 3K9
IF-OUT
RES
IT69 3T50 100K
AT58
IF-FILTP3
IF-FILTN3
AT59
TDA-IF-AGC
F
G
I_17500_057.eps
150408
14 15