Philips Colour Television Service Manual page 48

Circuit Diagrams and PWB Layouts
Large Signal Panel
1 2 3 4
LARGE SIGNAL PANEL
E1
2390
A
2n2
I164
1
I166
2
I111
1300
3
5A0
4
B 5HT
I113
5
VH
1500
I118
C
3313
GND_C
10K
I132
7302
MC44603A 16
D
Rref
Vref Iref
DEMAGNETICATION
Vref
2309 Vdem in
8 REFERENCE
MANAGEMENT
enable
GND_C BLOCK
I135
82p Vdem out
Vosc prot
Iref
GND_C 9 Sync
E C
Vosc
10 T OSCILLATOR
2310 F106
GND_C
R standby
680p 15
F
220p
Iref
GND_C
2353
R standby
12
P STANDBY
GND_C
(REDUCED FREQUENCY)
F
2.5V
I143 ERROR
3315
14 VOLTAGE
AMP
CURRENT
FEEDBACK
15K SENSE
13 E/A OUT
I148
G
GND_C Dmax & SOFT-START
FOLDBACK
Iref
FOLDBACK INPUT CURRENT SENSE INPUT
VCC
5 7
I150
3318
H
150K
GND_C
GND_C
I
+130VS
J
I156
VCC
K
I157
5 1
7303
CQY80NG 4 2
I158
I188
I159
L
I160
3325
1
47K
3K3
7304 3-K2,2-F2
I161
3
TL431
HOUT 3294
M
2
I162
N
O NOTES
1. CAPACITANCE VALUES ARE IN FARADS:
m=MILI u=MICRO n=NANO p=PICO f=FEMTO
2. RESISTANCE VALUES ARE IN OHMS:
R=OHM K=KILO M=MEGA G=GIGA T=TERA
P
3. SAFETY TRIANGE REPRESENTS PCEC REPLACEMENT PART ONLY.
*
4. FOR VALUE SEE TABLE.
3135 033 3341.1
1 2 3 4
DPTV585 AA
5 6 7 8 9
F111
I165
5330
I110
W8051
F108
5315 I114 3300 I163
22K
GND_C
470p
3307
2354
VCC 1305
2302 4R7
G5PA-1-5VDC
47u
2303
6301
3 2
GND_C
100u
BYV95C
F107
4 1
I130 I128
2346 3311
7309
+5VSTDBY
GND_C
BC547B
4R7
100n
6313
1
I125
Vcc
1N4148
18V
SUPPLY & UVLO1
I134
INITIALIZATION BLOCK
3303
Vc
I136 BC547B
100K
2 7301
7300
STW13NB60
I139 I140 I141
OUTPUT 5302 5301 3306
3 1
Set Q
BUFFER
Latch
15R
GND
4
Reset
Vovp out
GND_C
THERMAL
Vref Vcc
SHUTDOWN
GND_C GND_C
OVERVOLTAGE
MANAGEMENT
0034
HEATSINK
OVERVOLTAGE
I146 VCC
PROTECTION 3321
6
8K2
UVLO1
1 2 3 4
CONTROL
Vref
Soft Start & Dmax
GND_C
11
I149
GND_C
I152
I891
+15V
I890
7214
NE555D 8
VCC
6 THR
I892
CTRL 5
COMP
I889
100p
9210
TR 2
2271 COMP
7 DISC
RES 4
FF
OUT 3
GND
1
RESERVED
5 6 7 8 9
7. 48
10 11 12 13
5308
1u
I116 5321
1u
2391
2n2
I120
F117
STANDBY
1-L17
5323
5300
US54107
I115
11 12
10 13
AGND
14
GND_C
I117
8 15
I119
I121 I122
16
5319
6 17
0032
MECHPART I124
18
I127
19
2 20
2 21
1 2 3 4 5
3
I174
5320
1 22
I142
6302
I129
1N5062
I137
5324
GND_C
3308
0R22
GND_C
I144
3309
0R22
GND_C
GND_C
0213
HEATSINK
1 2 3
MTP6P20E
I895 7213 I897
I896
I893 I898
I894 2279
3291
100R
100n
HDR2K3 LSB
3135 033 33411 01
10 11 12 13
14 15 16 17
0033
470p
HEATSINK
2323
6308 1 2 I168 I169
5318 5317
10u
BY229X-600
0041
I170
470p
HEATSINK
2329
AGND
BY229X-600 1 2 I171 I172
5313 5316
10u
6309
HEATSINK
0045
I173
2364
AGND AGND AGND
470p
BY229X-600 1 2 I112
5322
10u
6316
HEATSINK
0035
1 2
BY229X-600
I123
5307
6306 10u
470p
0037
2315 HEATSINK
1 2
6307
I133
5309
10u
BY229X-600
HEATSINK
2319 0047
470p
1 2
6317
I138
5314
10u
BY229X-600
2361
470p
5306
HEATSINK
0043
I153 I154 470p
5310
1 2
2350
6315 I151
MUR8100E
6314
BY229X-600
I192
3359
68K
I189
VSCAN
2-C2
STANDBY
1-C10
1
7305
I190 I191 TL431
+130VS
3360 3
100R
2
14 15 16 17
18 19 20
RESERVED
A
F113
9001
3345
10R
AGND AGND B
AGND
F114
1506
1
2
PCB-TAB4.8x0.5
C
F115
F142 F141
AGND
EH-B
1516
12
- AUDIO
D
11
+ AUDIO
F116
10
9
+35V
8
7
+22V
E
6
5
F118
4
- 22V
3
F119
2
F140
- 35V
F
1
F139
1001
3339 F133
EH-B
G
3
68R
FAN
2
HEATSINK
1
0039
RESERVED
2312
1 2
H
470p
F120
I147 6305 I145 5304
+130VS
MUR8100E
6304
BY229X-600
I
F121
5311
+130VHV
J
1518
EH-B
1
K
HBLANK
2-D20 F125
2
DEFGND
2-C20
3
VBLANK
2-N19
4
F134
3347
5
10K F127
6
L
F128
7
+5VSTDBY
F129
5336
8
10u
9
F135
F132
PWR FAIL 10
11
M
F131
12
+15V
F136
F137
N
PROTECT
2-L2
O
P
F_15120_016.eps
020805
18 19 20