promethean PRM-10, Service Manual

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Chassis Block diagrams
S_SW
S_SW
S/CV_SW
SC_SW
PC1/PC2_SW
PO
WER
LAMP B
ALLAST
LINE FIL
TER
IC4001
RGB-AMP <LMH6739>
IC4011
SYNC I/O-SW
<TC4053>
IC5031
AU
DIO-OUT
<LM4889>
IC5001
AU
DIO-CONT
OL
<NJW1141>
IC101
VIDEO DECODER
<uPD64012>
IC5201
PC1/PC2-SW <AN5870>
IC1801
I/O EXPANDER
RC RECEIVER
PO
WER SUPPL
Y
SW901 LAMP CO
VER
SWITCH
SW902 THERMAL-SWITCH
P.
F. CONTR
OL
S-VIDEO
SP901
SPEAKER
MUTE
MONIT_OUT
LAMPDC_ON
DC_ON
RC
MAIN
Q6842
FA
N_CON_A
FA
N_CON_B
IC3571
D/A
<M62334>
1 2
R/C
IC891
INVERTER
<MH74LVC>
13
4
ON:H ON:H ON:H ON:H
ERR
OR:H
P-ON:H P-ON:H
PC1:L
PC1:L
P.
Fail:L
SCAR
T:H
S-IN:H
ON:H
7,8
10
2 1
15
26
128
9,10,11
1
3
Mute On:H
Mute On:H Po
wer On:H
Po
wer On:H
Po
wer On:L
Po
wer On:H
Monitor Out:H
L/R
VOLUME
8 50 51 98
PWR_LED
PWM_120HZ
PWM_120HZ
FA
N_ERR
LAMPREP_LED
ON_3.3V
ON_15V
78 71 99 80 157
FA
N_K8N
CABLE_SW
W
ARNING_LED
ON_5
VA
225 53 100 284
PO
WER_F
AIL
P_F
AIL
FA
N_SW1
FA
N_K8N
FA
N_SW1
LAMPDC_ON
DC_ON
READ
Y_LED
328 269 73 72 48
CHO_TXD
CHO_RXD
CHO_TXD
CHO_RXD
MUTE
MONITT_OUT
KEY1
66 140 144 139 138
KEY2
58
KEY3
IRRCVR0
IRRCVR0
SCL0/SD
A0
SCL1/SD
A1
327 52 158, 285 82, 149
IC301
SYSTEM CONTROL
Q6844 Q6843
D6832
D6831
D6833
Q5036
OUT_DET
Mute On:H
Q5034
Q4001
Q4014
Q6841
W
ARNING
LAMP REPLA
CE
READ
Y
IC4891
NAND
2
13
1 10
IC9882
INVER
TER
K8R
K6R
14
K8S
3 1
K8H
4 5 1
13
K8D
K29D
3
Q101 Q1031
S5V
FA
N
CONTR
OL
CIRCUIT
KEY SWITCH
SCL0/SD
A0
IC4071
SYNC I/O-SW
1
7
Monitor Out:H
Q4014
System control