Philips LX7000SA Service Manual page 33

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SUPPLY BOARD - CIRCUIT DIAGRAM
1 2
+V
1290 *
EH-B
* 1291
1
T2A5
A
2
* * *
D
TO TRAFO
SECONDARY
* * *
B
C
1251
3201
50V~
1
2
2R2
3209
NTC
3
4
1R
9250
EH-B
D
TO TRAFO
SECONDARY
E
1252 T4A For /22
1202
1
T5A 9.6V
2
9.6V
3
F
TO TRAFO
SECONDARY
+V
FE-ST-VK-N
5
G
4 +5.6V_ECO
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
8-3
3 4 5 6
7260
9260
L4941 7262
BD438
IN OUT +V
GND
+5V_P_SCAN
D
D D
D
3266
7261
DVD_ON
BC547B
12K
D D
BD438
6290
50V~ 7290 -5V 50V~
1N4003
Gnd_DAC Gnd_DAC Gnd_DAC Gnd_DAC
+25V
+A +32V
100u
2213
7210
BDX53BFP
+22V
+25V
+13.7V
+1.5V
+13.7V 2215
3n3
+0.7V
7212
7211
BC547B
BC547B
0V
A A
1250
T2A
7250
L4941
+12V
+5.6V
+5V6
+11V +11V IN OUT
GND
+0.6V
D D D
* PROVISION
Note : Some values may varies, see respective parts list for correct value.
3 4 5 6
7 8 9
7230
LM317P
BD438
7232
I O
A +3V3_DVD
D
D
3238
7231
BC547B
12K DVD_ON
D
5V
D D
7295
1N4003 BD241BFP
+5V
6295
Gnd_DAC Gnd_DAC Gnd_DAC Gnd_DAC
+12.5V +12A +5V6 +5V +12A
+3V3_DVD
+5.6V
A
+V
+11V
1N4148
6217
3221
7214
STBY
BC547B
+0.6V 22K
D
OVERVOLTAGE
DETECTION
+5V_DVD
0R22
+5.6V +5.0V
+5.6V 3253
BD438
7252
5K6
+4.9V
D
3251
3223
DVD_5V
DVD_5V
0V
12K
+0.7V 3289
7251
BC547B
12K
D
D D
7 8 9
Published in Heiloo, Holland.
8-3
10 11 12 13
NTC
OVERVOLTAGE -5V
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
3205 +8.2V
50V~
4K7
6206
NTC
DVD_5V
+5V
Gnd_DAC
-5V
+5.0V +5V6
680R
+5.0V
3222
7213
BC547B
+5V_P_SCAN
1270
FE-BT-VK-N N
1 1
2 2
+3V3_DVD 3 3
4 4
5 5
6 6
D
7 7
8 8
+12V_DVD
9 9
+12.5V
+12A
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_91973_01...for 3471 pt3 dd wk0232
10 11 12 13
12/21/15
14 1201 F2 6260 A2
1202 F2 6261 B2
1231 C13 6262 A3
1250 H6 6263 B2
1251 C1 6290 C4
1252 E1 6291 D5
1260 H1 6293 A11
1261 A13 6294 F10
1270 G13 6295 C7
1271 G13 6296 D8
A
1290 A1 7201 B11
1291 A2 7210 E5
EH-B 2205 D11 7211 F4
2210 E3 7212 F5
1261
2211 F4 7213 F10
6
2212 F4 7214 G7
2213 E5 7215 H12
5
+50V
2214 F6 7216 H10
2215 F6 7230 A7
4
2216 F7 7231 B8
TO POWER AMP
2217 G10 7232 A8
3
PCB
2218 G11 7250 H5
B
2
2219 I12 7251 I7
2230 A6 7252 H7
1
2231 A7 7260 A4
2232 A7 7261 B4
2233 A9 7262 A5
2240 B13 7290 C5
2250 I3 7295 C8
2251 I3 8520 F13
2252 I4 8521 H1
2253 I5 8522 F13
1231
2254 H7 9250 D2
FE-BT-VK-N
C
2260 A2 9260 A3
1
2261 B3
+5.6V_ECO
2262 A3
2
+5.6V
2263 A4
3 2290 D4
GND_D
2291 D4
4
2292 D5
+12A
2295 D7
5
GND_A
2296 D7
6 2297 D9
TO AVC
DVD_ON
PCB 3201 C2
7
3203 A11
STBY
D
3204 F9
8
PWD_DN
3205 D11
9 3209 D2
NTC
3211 E5
10
3212 F4
LPC
3213 F5
11
DVD_5V 3214 F6
12 3215 G6
+5V
3216 F10
13
3217 G9
Gnd_DAC
3218 F9
14
-5V 3219 G10
E
3220 F7
3221 G8
3222 F10
3223 H9
3224 I10
3225 H11
8520
3226 I11
3227 I12
HEATSINK
3228 I11
8522
3230 A7
3231 A7
TO DVD MODULE
F 3232 A7
3233 A8
3234 A8
3235 A8
3236 A8
3237 B8
3238 B9
1271
3251 H6
FE-BT-VK-N
3252 H7
1 1
+5V_P_SCAN
3253 H7
2 2
3254 I7
+5V_P_SCAN
3261 A4
3 3 G
3262 A4
+3V3_DVD
3263 A4
4 4
+3V3_DVD
3264 A5
5 5 3265 B5
+3V3_DVD
3266 B5
6 6
3289 I7
+5V_DVD
3290 D4
7 7
+5V_DVD
3291 D5
8 8
3292 B11
GND_DVD
3293 B11
9 9
TO AVC 3294 F10
GND_DVD
PCB
10 10 H 3295 D8
GND_DVD
3296 D8
11 11
3297 B10
GND_DVD
6201 F9
12 12
+12V_DVD 6205 D10
13 13 6206 D10
+12V_DVD
6207 D11
14 14
6210 E3
GND_DVD
6211 F3
15 15
GND_DVD 6212 E3
6213 F3
16 16
GND_DVD
6215 F6
I
6216 F10
6217 F9
6218 F11
6230 A7
6240 B12
6250 E2
6251 F2
6252 I5
14