Service manual

FRAME
LOAD
LOAD
SCLK
D0
D1
D2
D3
1
2
3 4 8079
7877
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S305
S306
S307
S308
S309
S310
S311
S312
S313
S314
S315
S316
S317
S318
S319
S320
1 FRAME
Figure 3. Waveform for LCD control and data signals
3.Driving signal for EL
A DC/DC converter generates EL driving voltage. See Figure 4.
L+ L-
Vout NC
V+ CLF
GND E
EL+
EL ON/OFF
D358-D
3.3V
2.2uF
0.68mH
0.01uF
EL Panel
Figure 4. EL Driving Circuit
The waveform of EL+ shows in Figure 5