Keyboard Control Board (26" & 32 - Philips LC4.31E Service Manual

Circuit Diagrams and PWB Layouts
Keyboard Control Board (26" & 32")
1
KEYBOARD CONTROL
E
A
HERCULES OTHERS
*
BASED
3318 150R
B
3319 390R
3324 560R
3320 1K8
3321 820R
1684
1
F309 KEYBOARD
2
3
C
S3B-PH-K
3317 3318
*
RES
F308
I304
D
1309
Diversity Resistor
SKQNAB
3999
F310 F311
CH+
RES
E
3139 123 5974.1
1
LC4.31E AA 7.
2 3
E
620R
1K1
2K0
200R
390R
3319 3324 3320 3321
* * * *
I305 I303 I306 I307
3322 3323
0R 0R
I308 I309
1310 1314 1311 1312 1313
SKQNAB SKQNAB SKQNAB SKQNAB
SKQNAB
CH- VOL+
MENU ON / OFF
VOL-
G_16210_034.eps
180106
2 3
EN 121
Layout Keyboard Control Board (26" & 32") (Top Side)
1309 A1 1310 A3 1311 A5
1008 D1
1309 D2
1310 D2
1311 D3
1312 D3
1313 D3
A
1314 D2
1684 C1
3317 C1
3139 123 5974.1
3318 C2
3319 C2
3320 C3
3321 C3
Layout Keyboard Control Board (26" & 32") (Bottom Side)
3322 D3
3323 D3
3317 A7 3318 A7 3319 A7
3324 C2
3999 D1
6306 C1
B
F308 C1
F309 C1
F310 D1
F311 D1
I303 C2
I304 C2
I305 C2
I306 C3
3139 123 5974.1
I307 C3
I308 D3
I309 D3
C
D
E
1312 A7 1313 A8 1314 A4 1684 A1
3320 A4 3321 A3 3322 A4 3323 A3 3324 A6
G_16210_035.eps
180106
3999 A2 6306 A8
G_16210_036.eps
180106