Supply Board - Circuit Diagram - Philips LX7100SA/22 Service Manual

SUPPLY BOARD - CIRCUIT DIAGRAM

1 2 3
+V
1290 *
9260
EH-B
*
1291
1
A
T2A5
2
* * *
D
TO TRAFO
SECONDARY
* * *
D
B
C
1251
3201
50V~ 50V~
1
2 1N4003
4R7
3209
NTC
3
4
1R
9250
EH-B
D
TO TRAFO
SECONDARY
E
1252
1202
1
9.6V
T4A/T5A
2
9.6V
3
F
TO TRAFO
SECONDARY
+V
FE-ST-VK-N
G 5
+5.6V_ECO
4
3
+C
2
1
PW_DN
1260
TO MAINS
PCB
8521
H
1 RT-01T
A
D
GND_Pscan
Gnd_DAC
I
.... Vdc measured during AMPLIFIER ON
V Vdc measured during AMPLIFIER OFF (mute)
Voltages measured at nominal mains voltage and low output signal
1 2 3
8-3
4 5 6
7260
L4941 7262
BD438 LM317P
IN OUT +V
GND I
+5V_P_SCAN
D
D D
3266
7261
DVD_ON
BC547B
12K
D D
BD438
6290
7290 -5V 50V~
Gnd_DAC Gnd_DAC Gnd_DAC Gnd_DAC
+25V
+A +32V
100u
2213
7210
+12.5V
BDX53BFP
+22 V
+25V
+13.7V
+1.5V
2215
+13.7V
3n3
+0.7V
7212
7211
BC547B
BC547B
0V
A A
+5.6V
1250
T2A
7250
L4941 5K6
+12V
+5.6V
+5V6 3251
IN OUT
+11V GND
+11V
+0.6V
BC547B
D D D
Provision
*
Note : Some values may varies, see respective parts list for correct value.
4 5 6
7 8 9
7230
BD438
+3.6V
7232 +3.5V
O
A +3V3_DVD
+3.0 V
D
D
+0.2V
3238
7231 +0.7V
BC547B
12K DVD_ON
D
5V
D D
7295
1N4003 BD241BFP
+5V
6295
Gnd_DAC Gnd_DAC Gnd_DAC Gnd_DAC
+12A +5V6 +5V
+3V3_DVD
+5.6V
A
+V
+11V
1N4148
6217
3221
7214
STBY
BC547B +0.6V 22K
D
OVERVOLTAGE
DETECTION
0R22 +5V_DVD
+5.3V
+5.0V
3253
BD438
7252
+5.0V
D
3223
DVD_5V
DVD_5V
0.2V
12K
+0.7V 3289
7251
12K
D
D D
7 8 9
8-3
10 11 12
NTC
-5V
OVERVOLTAGE
DETECTION
+12A
1N4003
50V~
3297 6240
7201
BC547B
10K
0V
+C
+A
+5.6V_ECO
+5V6
D
+12A
6205
PW_DN
1N4148 A
DVD_ON
STBY
1N4148 +8.2V
3205
50V~
4K7
6206
NTC
DVD_5V
+5V
Gnd_DAC
-5V
+12A NTC +5V6
+5.0V
680R
+5.0V
3222
7213
BC547B
+5V_P_SCAN
FE-ST-VK-N FE-BT-VK-N
1 1
2 2
+3V3_DVD 3 3
4 4
5 5
6 6
D
7 7
8 8
+12V_DVD
9 9
+12A +12.3V
10 10
7216
BC547B
+12.5V
11 11
7215
BD438
12 12
+11.8V
13 13
14 14
D
D
D
3139 118 55560...8239_210_91974_01...for 3471 pt4 dd wk0333
10 11 12
13 1201 F1 6251 F2
1202 F1 6252 I4
1231 C13 6260 A2
1250 H6 6261 B2
1251 C1 6262 A2
1252 F1 6263 B2
1260 H1 6290 C3
1261 A13 6291 D4
1270 G12 6293 A11
A
1271 G13 6294 F9
1290 A1 6295 C6
1291 A1 6296 D8
EH-B
2205 D11 7201 B11
1261
2210 E2 7210 E4
2211 F3 7211 G4
6
2212 F4 7212 F5
2213 E5 7213 F10
5 +50V
2214 F5 7214 G7
4
2215 F5 7215 H11
TO POWER AMP 2216 F6 7216 H9
3
PCB
2217 G9 7230 A6
B
2218 G10 7231 B8
2
2219 I12 7232 A8
1 2230 A6 7250 H4
2231 A7 7251 I6
2232 A7 7252 H7
2233 A8 7260 A3
2240 B12 7261 B4
2250 I3 7262 A4
2251 I3 7290 C4
2252 I4 7295 C8
1231
2253 I5 8520 F13
C
FE-BT-VK-N 2254 H7 8521 H1
2260 A2 8522 F13
1
+5.6V_ECO
2261 B2 9250 D2
2
2262 A3 9260 A3
+5.6V
2263 A3
3
GND_D 2290 D4
4 2291 D4
+12A
2292 D5
5
2295 D7
GND_A
2296 D7
6
DVD_ON
2297 D9
TO AVC 3201 C1
7
D
PCB
STBY 3203 A11
8
3204 F9
PWD_DN
3205 D10
9
3209 D2
NTC
10 3211 E5
LPC
3212 F4
11
3213 F4
DVD_5V
3214 F6
12
+5V 3215 G6
13 3216 F9
Gnd_DAC 3217 G8
14
3218 F8
E
-5V
3219 G9
3220 F7
3221 G7
3222 F10
3223 I9
3224 I9
8520
3225 I11
3226 I11
HEATSINK
3227 I11
3228 I11
8522
3230 A6
F
3231 A7
TO DVD MODULE
3232 A7
3233 A8
3234 B8
3235 B8
3236 B8
3237 B8
1271
3238 B8
FE-BT-VK-N
3251 H6
1 1
3252 H6
+5V_P_SCAN
3253 H7
1270
2 2
+5V_P_SCAN 3254 I7
G
3 3 3261 A4
+3V3_DVD
3262 A4
4 4
3263 A4
+3V3_DVD
3264 A4
5 5
+3V3_DVD
3265 B4
3266 B5
6 6
+5V_DVD
3289 I7
7 7
+5V_DVD 3290 D4
3291 D4
8 8
GND_DVD TO AVC
3292 B11
9 9 PCB
3293 B11
GND_DVD
3294 F9
H
10 10
3295 D7
GND_DVD
3296 D8
11 11
GND_DVD 3297 B10
12 12 6201 F9
+12V_DVD
6205 D10
13 13
6206 D10
+12V_DVD
6207 D11
14 14
GND_DVD
6210 E3
15 15
6211 F3
GND_DVD
6212 E3
16 16
6213 F3
GND_DVD
I
6215 F6
6216 F10
6217 F9
6218 F10
6230 A7
6240 B12
6250 E2
13