PT-TW371R — Panasonic Projector Service Manual (repair manual). Page 5

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DIA-5
BLOCK & SCHEMATIC DIAGRAMS
<LW375 / LB305 / TW371R /TW370 / XW3370 series>
2
3
1
3
2
1
5
8
6
34
18
33
26
30
31
1/2
17
43/44
19
10
14
22
IC5202
PT2830
IC1001
PW878LHB
K1203
PC_R
K1
20
3
PC_L
VEDIO_R
K1202
VEDIO_L
16
20
HDMI_R
HDMI_L
SDA
SCL
SD_MCU
IC5005
HDMI 
AUDIO
OUTR
OUTL
P5003
AMUOUT
OUIT_DET_EXT
1. 4. Audio control circuit
 
2
3
 
1
3
2
1
 
8
5
6
4
Q5001
Q5005
Q5006
13
22
18
29
28
17
16
43
11
46
24
7
 OUT_DET_EXT
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
IC5007 
PT2334 
 
 
 
 
 
   
 
 
 
IC1001 
PW686LHB
 
    
 
   
K1203
 
PC_R 
   K1
20
PC_L 
VEDIO_R
 
 
  K1
20
VEDIO_L
 
CLK 
LRCLK
 
DATA 
SD_PW 
MUTE 
 OUTR 
 OUTL
P5003
5
2
7
5
2
7
5
2
7
FANC_SW
H6
3
3
3
FANC_ERR
FAN ERR
AA10
Lamp_cold
FN3005
1
2
D3014
W13
FANC_DA
Power_out
FN3004
1
2
IC3280
FR9888
D3008
7
0
0
3
D
3
8
2
3
Q
D3011
IC3250
FR9888
H5
Lamp_out
FAN_SW
FN3003
1
2
FN3002
1
2
T12
FANB_DA
D3006
IC
100
1
P
WC
87
8
Y12
FANA_DA
Panel_B/G
Q3361
Q3030
D3005
IC3009
FR9888
Panel_R
S16V
FAN_A
FN3001
1
2
FAN_C
FAN_B
R/C
C1
2
1
2
1
 
E4
LAMP COVER SW
1
2
3_3SDA
E1
LAMP_EN
10
IC1002
TEMP 
SENSOR A
TEMP 
SENSOR B
TEMP SENSOR 
<PANEL>
IC1003
<LAMP>
IC1902
<EXT.>
3_3SCL
P3006
3
2
8
P3002
IC3100
GL810S
5
BALLAST
LAMP cooling Fans
Exhausting FANS
LCD PANEL
 COOL ING FANS
FAN_ERR
Power ERR: ON
P3001
4
`
1. 5. Fan control circuit
For LB305 / XW3370 series
For LW375 /TW371R /TW370 series
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