Philips 32PW9618 Service Manual page 78

Circuit Diagrams and PWB Layouts
Small Signal Board: PIP-I/O
1P50 D2 2P53 E2 2P57 G5 2P61 E6 2P65 G9 2P69 H9 2P73 D8 2P77 D4
2P50 D4 2P54 F2 2P58 F5 2P62 F5 2P66 H9 2P70 D6 2P74 C6 2P78 E12
2P51 E1 2P55 F2 2P59 E5 2P63 F10 2P67 H9 2P71 D15 2P75 A8 2P79 E12
2P52 E2 2P56 G5 2P60 E5 2P64 F10 2P68 H9 2P72 D6 2P76 D1 2P80 E14
1 2 3
PIP-I/O
+5VPIP
A
7P50 RES
M24C32
1
VCC
E0
2
E1
NVM
3
E2
RES
3P77
6
S-SCL
B SCL
100R
7
WC_
+5VD
USA ONLY
IP50
3P80 *
*
6K8
C 7P51 * V-CHIP PROC.
Z86130
1 18
I2C-SEL NC2
2 17
HSEL NC1
2P88 * 3P82 *
3 16
XOUT SDO
470K
22p * 4 15
SEN SCK
5 14
HIN-XIN SDA
*
6 13
SMS VIN-INTRO
D * 7 12
VIDEO VDD
IP53
8 11
CSYNC VSS
IP54
2P76 *
9 10
LPF RREF
8p2 IP51
*
2P51 3P53 *
V-CHIP_IN
470R
100n
*
E
*
2P53
B15c
100n
2P54 * 3P54 *
6K8
68n
2P55 *
F
6n8
B6a
B15c
V33 V35
G
500mV / div DC 500mV / div DC
20µs / div 20µs / div
B6a
B15c
V34 V36
B15b
H
500mV / div DC 100mV / div DC
20µs / div 20µs / div
8204 000 8140.8
1 2 3
EM6E
2P81 E14 2P85 F10 2P90 D5 3P53 E2 3P57 G5 3P61 D7 3P65 G15
2P82 G10 2P86 A4 3P50 D1 3P54 F2 3P58 G5 3P62 G9 3P66 G15
2P83 G10 2P87 C2 3P51 D1 3P55 H5 3P59 F5 3P63 F9 3P67 F14
2P84 F10 2P88 C1 3P52 D4 3P56 G4 3P60 F5 3P64 F9 3P68 F14
4 5 6
MONO FM
AUDIO
8
DEMODULATOR
7P55
RES
TDA9820T/V1
3P78
5
S-SDA
SDA M
7P55-M 3
100R
B|G
7P55-BG 1
IN1
I
VSS 7P55-I 16
4
D|K
7P55-DK 2
7 STAGE
LIMITER
AMPLIFIER 1
IP60
7 STAGE
15 IN2
LIMITER
AMPLIFIER 2
+8VPIP SUPPLY
3P79 *
S-SCL
100R
3P81 *
S-SDA
13 14 12 11
100R
* 7V9
5P50
IP57
*
6u8 IP58
*
* 3P52
10K
V33
B6a
2P60 3P75
IN-Y50
100R
1u TDA8601T
7P54
DY
RES 7P52
BC847BW IP52 SELECTABLE
2P58 3P59
2 VIDIa1
CLAMP
100R
47n
SELECTABLE
6 VIDIa2
CLAMP
SELECTABLE
V34 3
VIDIb1
CLAMP
IN-U50
SELECTABLE
7
DU VIDIb2
CLAMP
RES 7P53
SELECTABLE
BC847BW 4
VIDIc1
CLAMP
IP55 2P57
3P58
SELECTABLE
47n 100R 8 VIDIc2
CLAMP
FP57
V35 5 SEL
0V
IN-V50
15 FBI1
DV
3P55 14 FBI2
RES
1K
9P54
MUPPET_BLK
4 5 6
7. 78
3P69 E14 3P75 E5 3P79 C4 3P85 F14 5P50 D4 7P52 F4 7P56 F13 9P54 H5
3P70 E14 3P76 F4 3P80 C2 3P86 B9 5P51 E15 7P53 G4 7P57 A12 9P55 C12
3P72 E14 3P77 B3 3P81 D4 3P87 B9 7P50 A3 7P54 E6 9P52 F4 9P56 C12
3P74 D15 3P78 B4 3P82 C2 3P88 D5 7P51 C3 7P55 B6 9P53 G4 9P57 D12
7 8 9 10
IP59
2V5
9
+8VPIP
C1
VAF1 8
FP56
VCO1
0V1
S1 5
CONTROL
0V1
UNIT
*
S2 6 9P65
VCO2
9P59 * PIP-CVBS-MON
VAF2 7
NC1 C2
4 10
2V5 IP61
SWITCH
V36
16
IOCNTR
DECODING
3P64 2P64 FP53
V37
100R
1u
12
VIDOa
3-STATE
V38 3P63 2P85 FP52
11 100R
VIDOb 47n
3-STATE
V39
10 2P83 FP51
3P62
VIDOc
100R 47n
3-STATE
+8VPIP
2P65
100u
13 V37
FBO
2P66
100n
3-STATE
1
Vp
9 RES 2P67
GND
500mV / div DC
47p
RES 20µs / div
2P68
47p
RES
2P69
47p
7 8 9 10
9P58 D11 9P64 B9 9P71 H13 FP53 F10 FP57 G6 IP51 D3 IP55 G5 IP59 B8
9P59 C9 9P65 C10 FP50 D15 FP54 D12 FP59 F15 IP52 F5 IP56 D14 IP60 C6
9P60 C8 9P69 H13 FP51 G10 FP55 E15 FP60 G10 IP53 D2 IP57 D7 IP61 D8
9P63 B9 9P70 H13 FP52 F10 FP56 B8 IP50 C2 IP54 D2 IP58 D6 IP62 C14
11 12 13
+5VD
SWITCH
7P57
16
74HC4053
6
VCC
G3
14
MUXDX
12
1y0
11
13
1y1
15
2
2y0
10
1
2y1
4
5
9
3y0
3
B6a
3y1
MONO-PIP
VEE GND
B15a
7 8
B15a
9P56 *
SUB-Y
B15a
SIF-OUT 9P55
SEL_PIP_CVBS_SOUND
9P58 *
V-CHIP_IN
FP54
B1
9P57
MONO-PIP
SEL_PIP_SOUND1
SEL_PIP_SOUND2
SEL_PIP_CVBS_SOUND
B15c
HA50-PIP
B6a
Y-PIP+MAIN-OUT
4 5 6 7 9 10 11 12
B6a
U-PIP+MAIN-OUT 7P56
M62320
I/O PORT
8 8 8
DATA LATCHES
RES GND 8
IN I/O OUT
PWR
VDD
8 8 8 13
SO
REG TRANSCEIVER
SDA
B6a 3
V-PIP+MAIN-OUT 1 SHIFT C BUS I
2
SCL
2
CHIP SELECT
FP60
14 15 16
I/O EXPANDER
V38 V39
500mV / div DC 500mV / div DC
20µs / div 20µs / div
11 12 13
14 15
A
B
C
B14c
IP62
SWITCH_HEF
B15c
PIP_RESET
+5VPIP
FP50
3P74
+5VD
D
+5V
2R2
IP56
5V2
5P51 FP55
3P72
30R
4K7
E
3P70
B15c
4K7
FBLK
3P69
4K7
3P68 3P85
4K7 4K7
3P67
B14c F
4K7 FP59
SWITCH_HEF-SUB
+5VD
3P66 100R
S-SDA
3P65 100R
S-SCL
G
H
CL 36532008_048.eps
070503
14 15