Philips FW-C870 Service Manual page 29

6-3
FRONT BOARD - CIRCUIT DIAGRAM
1200 D1 1207 E4
1201 H1 1208 E5
1202 G1 1209 E5
1203 E3 1210 F5
1204 E3 1211 F5
1205 E3 1212 F4
1206 E4 1213 F3
1
A
B
C
1200
D
6
Cdc3Lit
5
Cdc2Lit
4
Cdc1Lit
3
2
1
E
GND-B
F
G
* 1202
1
2
1 3
H 2 4
3 5
4
6
## 1201
I
*
J
K
1
1214 F3 1221 D21 1902 K20 2205 B4 2216 D3 2228 I3 2235 H4 2242 I8 2249 G13 2256 A17 2263 K11 2270 D20 2277 H19
1215 F4 1222 E21 1903 K20 2206 B5 2217 D4 2229 I3 2236 I5 2243 J8 2250 G12 2257 B15 2264 K12 2271 D20 2278 H20
1216 F4 1223 H21 1904 K11 2208 B4 2220 D4 2230 I1 2237 E7 2244 J7 2251 G12 2258 D17 2265 K14 2272 D20 2279 J17
1217 B10 1224 I21 2200 B3 2209 B5 2221 D5 2231 I1 2238 H8 2245 J8 2252 G12 2259 D15 2266 K14 2273 F20 2280 J19
1218 J13 1225 C8 2201 B4 2210 B6 2225 H2 2232 J1 2239 I7 2246 D9 2253 G13 2260 J12 2267 K16 2274 F20 2281 K17
1219 J15 1226 D7 2202 B5 2212 C3 2226 I2 2233 J1 2240 I8 2247 D10 2254 F14 2261 J13 2268 K16 2275 G20 2282 K17
1220 C21 1227 D8 2204 B3 2213 C4 2227 I3 2234 H4 2241 I7 2248 D8 2255 H14 2262 K10 2269 D19 2276 G19 2283 K19
2 3 4 5 6
+D +D +D +D
7200 7201 7202 7220
BC847B BC847B BC847B BC847B
-30V -30V -30V -30V
7205 7206
BC847B BC847B
-30V -30V
GND
DOLBY_NR NEWS RDS DPL AUX TAPE TUNER
3208 3209 3210 3211 3212 3213 3214
820R 560R 390R 270R 220R 150R 1K
## *
* @
+C
GND-B GND-B GND-B GND-B GND-B GND-B
GND-B
LEDShCLK
PERSONAL DSC VEC POWER STANDBY BASS/TREBLE CD
3216 3217 3218 3219 3220 3221 3222
820R 560R 390R 270R 220R 150R 1K
LEDShDATA
+C
GND-B GND-B GND-B GND-B GND-B GND-B GND-B
Key0
VOL_CLK
5202 5203
10u 10u
MuxEnable
+D
TU_CE
* 2225 100p
3227 1K
* TU_DATA
1K
3228 TU_CLK
3229 1K
TU_STEREO
3230 1K
AT-51 +D
3231 1K
* 5200 SA3
* *
*
* 3233 *
+5V
220K
*
7214
SAA6579T
13 14 12
VDDD
SA2
* ANTI- 57 Khz OSCILLATOR QUALITY
4 MUX RECONSTRUCTION QUAL 1
ALIASING BANDPASS AND BIT
FILTER
FILTER (8th ORDER) DIVIDER GENERATOR
8 SCOUT
CLOCKED BIPHASE
COSTAS LOOP DIFFERENTIAL * 3234
7 CIN RDDA 2 TuRDSDATA
* COMPARATOR SYMBOL
VARIABLE AND DECODER
5 DECODER 1K
VDDA FIXED DIVIDER
VP1
RDCL 16 * 3235 TuRDSCLK
SA1
REFERENCE 1K
3 VREF
CLOCK TEST LOGIC AND OUTPUT
VOLTAGE T57 15
REGENERATION SELECTOR SWITCH
AND SYNC
## ##
VSSA VSSD
*
6 9 10 11
2 3 4 5 6
6-3
2284 K20 2291 C7 2299 G20 3204 D3 3213 E5 3220 F4 3227 H2 3234 J5 3241 I8 3248 J7 3255 E10 3262 F10
2285 K20 2292 B6 2300 G20 3205 D4 3214 E5 3221 F5 3228 H2 3235 J5 3242 I8 3249 J8 3256 E10 3263 C10
2286 A17 2293 D7 2301 K11 3208 E3 3215 E5 3222 F5 3229 H2 3236 J5 3243 I8 3250 D10 3257 E10 3264 C10
2287 D17 2294 B6 2302 E16 3209 E3 3216 F3 3223 F5 3230 H2 3237 J6 3244 I7 3251 E10 3258 E10 3265 C11
2288 G15 2296 B7 3200 B3 3210 E3 3217 F3 3224 H2 3231 H2 3238 H8 3245 I8 3252 E10 3259 F10 3266 C11
2289 G17 2297 J12 3201 B4 3211 E4 3218 F4 3225 H3 3232 H4 3239 H9 3246 J7 3253 E9 3260 F10 3267 C11
2290 G17 2298 G20 3202 B5 3212 E4 3219 F4 3226 H3 3233 I4 3240 I7 3247 J8 3254 E10 3261 F10 3268 C11
7 8 9 10 11
Variations table for Front Board
# : Provision
3236
1201 1203 1402 1419 3344
3237 : RDS
*
FW-C83/22
IN USE - @ : DPL Function
- IN USE - 180R
FW-C85/22/34
## : Refer to variations table.
FW-C85/37 IN USE - IN USE - 10k 1k8 Note : Some values may varies, see respective parts list for correct value.
FW-C85/21
IN USE
IN USE - - 10k 27k
FW-C870/21
-
FW-P900/37 IN USE - IN USE 10k 820R
FW-C870/37 IN USE - IN USE - 10k 12k 1217
BJ736GNK
FW-C90/22 - IN USE - IN USE - 1k2
FW-P88/37
IN USE 3k9
FW-P880/37 IN USE - - 10k
FW-P88/22 IN USE IN USE - - 470R
-
62 61 60 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
-F2
# 2291 1225
1
100n
+5V6 1N4003 5204
GND-B
+5V0
2u2
6207
+C
1226 # 2293 1227
6208
+5V6
1 1
100n
1N4003
40 VDD I/O PORT 6 I/O PORT 7
39 VAREF
GND-B VDD
38 VASS
8 BIT A/D-
VFT DRIVER CIRCUIT
CONVERTER
37 P53
I2C_DATA
3250 1K
36 P52
I2C_CLK
3251 1K
35 P51
+D 2237 100n LEDShDATA 3252 1K DATA MEMORY PROGR MEMORY
34 P50 (RAM) (ROM)
7211
LEDShCLK 3254
1K
HEF4051BT 16 33 P47
CdSwInfo
VDD 3255
1K
Y0 13 32 P46
HP_DET INTERRUPT CONTROLLER
AmNTC 3256
1K
31 P45
WooxB
+C 3257 1K
11 A0 Y1 14
30 P44
VOL_CLK
3258 1K
29 P43
16 BIT 8 BIT
WooxA
3374 3259 1K TIMER/COUNTER TIMER/COUNTER
Y2 15
Key2 28 P42
MuxIn 3260 1K
1K
27 P41
TpADC2
Options
10 A1 Y3 12 26 P40
CLOCK/TIMING CONTROLLER
TpADC1
3261
25 P32
LOGIC
1-of-8 CdSILD I/O P3 I/O PORT 1
1K
LEVEL Y4 1
DECODER
CONVERSION SA1
9 A2 Y5 5
SA2
Y6 2
SA3
32K768
6 E_ 4
Y7
AmNTC
Z 3
MuxIn
VSS VEE
8 7
+D
6204 2238 3239
1K5
1N4148 820p
+D 680K 3242
6205 2240
3243
1K5
1N4148 6n8
+D
3246 680K
+D
2243
6206 3247
+4V8
1K5
1N4148 47n
2
VSUP
3345
1
OUT
1K
7216
GND MT
GR1U28XP
4 1904
3
2301 100n
7 8 9 10 11
3269 C11 3276 C12 3283 C13 3290 G11 3297 G12 3304 D14 3311 E14 3318 F14 3326 C17 3333 H17 3340 J16 3347 C20
3270 C11 3277 C12 3284 C13 3291 G11 3298 G13 3305 D14 3312 E14 3320 H14 3327 C17 3334 H17 3341 J16 3348 C20
3271 C11 3278 C12 3285 C13 3292 G11 3299 G13 3306 D14 3313 E14 3321 H14 3328 C17 3335 J16 3342 J12 3351 C20
3272 C12 3279 C13 3286 C14 3293 G11 3300 G13 3307 D14 3314 E14 3322 H14 3329 D15 3336 J12 3343 J11 3352 D20
3273 C12 3280 C13 3287 G10 3294 G11 3301 G13 3308 D14 3315 E14 3323 I14 3330 E17 3337 J10 3344 J16 3353 E20
3274 C12 3281 C13 3288 G10 3295 G11 3302 G14 3309 E14 3316 F14 3324 B17 3331 H17 3338 J14 3345 J11 3354 E20
3275 C12 3282 C13 3289 G10 3296 G11 3303 H13 3310 E14 3317 F14 3325 B17 3332 H17 3339 J14 3346 K13 3355 E20
12 13 14 15 16 17
+5V6
7204
74HC4094D 16
SRG8
15
EN1
1
STB
3
"ON" 5V0
2 4
D 1
5
6
3324 220R
7
3325
14
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 3 2 1
3326
13
-F1
3327
12
3328
11
9
10
8
7209
TMP88CU74YF
+5V6
7210
1K 3304
P9 74HC4094D 16
P90 65
I/O PORT 8
1K 3305 3329 10K SRG8
P91 66 P10 15
EN1
1K 3306 2259
P92 67 P11 1
STB
1K 3307 220p
P93 68 P12 3
1K 3308
P94 69 P13
1K
3309 2 4
P95 70 P14
D 1
1K
PROGRAM 3310 5
P96 71 P15
COUNTER
1K 3311 3330
P97 72 P16 6
1K 3312 6209 1N4148
PD0 73 LEDShEn 7
1K 3313 6210 1N4148
PD1 74 CdShSTR 14
1K 3314 13
PD2 75 # 9310
470R 3315 6211 1N4148
12
PD3 76 CdShCLK
SERIAL
INTERFACES 1K
3316 # 9311 11
PD4 77
9
VKK 78 6212
1N4148
VKK TpShStr
1K 3317
VSS P00 79 10
6213 1N4148
-30V LEDShStr
(I/O PORT 2) 80 1K 3318
P01
I/O PORT 0
8
CDTXTCLK
CDTXTin LEDShEn
+5V6
LEDShDATA
@
7218
74HC4094D 16
5205
LEDShSTR
5206 SRG8
5208
15
EN1
100u
1
STB @ @
LEDShCLK 3
+5V6 2 4
D 1
5
0.3V "ON"
6
# 7212 "ON" 0.7V
BC847B
7
+5V6
7213
@
3334470R
M24C02 8 14
1
@
E0 VCC 3331 470R
13
2
@
E1 3332220R
12
3322
3 5
@
E2 SDA 3333 470R
11
1K I2C_DATA
6
SCL
9
7
WC_ VSS
10
4 3323
I2C_CLK
1K 8
+C
6227 1N4148
+D +D +D +D
+5V6
+5V6
1N4003
3342
1218 1219
680K
EC16 1 2 EC16 1 2
VOL RE
7215 +5V6
##
BC847B MT1 MT2 MT1 MT2
4 5 3 4 5 3
12 13 14 15 16 17
6-3
3356 F20 3363 H20 3372 F18 5200 H4 5207 H13 6206 J7 6213 F15 6222 H17 7201 B4 7211 E7 721 8 G16
5201 H4 5208 G15 6207 D9 6214 B18 6223 H18 7202 B5 7212 H12 722 0 B6
3357 F19 3364 H20 3373 F9
3358 G19 3367 G19 3374 F9 5202 G6 5209 E20 6208 D8 6215 B18 6224 H17 7204 A16 7213 H13 930 0 J18
3359 G19 3368 G19 3376 B6 5203 G6 6201 J13 6209 E15 6216 C18 6225 H17 7205 C3 7214 I2 930 1 J18
3360 G20 3369 G19 3377 D15 5204 C9 6203 H8 6210 E15 6217 C18 6226 J17 7206 C4 7215 J12 931 0 E15
3361 G20 3370 H19 3378 D20 5205 G12 6204 H7 6211 E15 6218 C18 6227 I17 7209 D14 7216 K11 931 1 F15
931 2 J18
3362 G20 3371 E17 3379 I18 5206 G12 6205 I7 6212 F15 6220 H17 7200 B3 7210 D16 7217 E18
18 19 20 21
A
Cdc1Lit
B
Cdc2Lit
Cdc3Lit
6214
100R
6215
100R
6217 1220
3347 100R
TpADC2
1
100R
6216
3348 100R
TpADC1
100R 2
6218
+F
3
C
4
TPShCLK 5
TPShDATA 6
TPShSTR
7
D
1221
1
@ 3352
2
LEDShDATA
1K
3
TU_CE LEDShCLK
@ 3353
4
1222
MuxEnable VOL_CLK
22R 5209 1K
5
1
BassTreble HP_DET E
100u
6
2
WooxLit SA_IN
3371 7
3
AmNTC
1K 7217 3354 330K 8
4
BC847B PWRDWN
2273 10p 3355 220R 9
5
I2C_DATA
3356
10
6
I2C_CLK
220R
11
7
2274 10p
BlueStrip
12
8
F
13
+5V6 9
14
10
-30V
15
11
F1
3357 470R
CdSILD 16
12
F2
3367 10K 2275 100n
17
13
3358 470R
CdShDATA 18
14
3359 470R 2298 47p
CdSICL 19
15
G
3368 10K
2299 47p 20
16
2300 47p 3360 470R
21
CdShCLK 17
3369 2K2 2276 10p 3361 470R
22
18
3362 470R
CdShSTR 23
19
2K2
3370 2277 10p 2278 10p
CdSwInfo
1223
1
6225 @ CDTXTin H
6220 @ 2
CdTxtDQSV
3363
@ @
6222 6223 3
CDTXTCLK
1K
4
6224 @
1224
FE-BT-VK-N
BlueStrip 1 I
WooxA 2
+5V6
3
3379 47R
WooxB 4
+F
9312 GND-B 5
6226
9300
+D F1 -F1
Key0
6
7
Key2 8 J
WooxLit 9
BassTreble 10
9301
-F2
+5V6 F2
1902
2284
100n
1903 K
2285
GND-B
100n
3139 118 53120...86940 for...3424 pt3 dd wk0035
18 19 20 21