Integra DTR-4.9 Service Manual page 73

SERVICE PROCEDURE-2
5. To check version of Main microprocessor, DSP and Network microprocessor FW
1. Press and hold down Display button, then press On/Standby button when the unit is power on.
The main microprocessor version will be displayed on Front Display for about 3 seconds.
Ex.
M a i n 1 .0 3 /0 8 6 3 0 A
2. Press + (Tone) button while the version is displayed. Then, "D S PS R 6 0 6:0 8 6 1 1A" will be displayed.
In this way, as + (Tone) button is pressed while a version is displayed, the next information will be displayed.
If - (Tone) button is pressed, the order will be reversed.
M a i n 1 .0 3 /0 8 6 3 0 A
- (Tone)
D S P S R 6 0 6 :0 8 6 1 1 A
N E T :1 .0 0
3. Press On/Standby button to power off
6. Replacing Power Amplifier Parts
When a power amplifier of certain channel is broken and goes into Protect mode, the following parts in the channel
must be replaced at the sametime, because these parts get damage in most cases.
Front
L ch R ch
Q6000, 6010 Q6001, 6011
Q6030, 6040 Q6031, 6041
Q6050, 6060 Q6051, 6061
C6040 C6041
R6020, 6070 R6021, 6071
R6080, 6090 R6081, 6091
R6100 R6101
Refer to "SCHEMATIC DIAGRAMS-2 (POWER AMPLIFIER SECTION)"
<Ex.> Front Lch
7
Version of Main microprocessor FW (Q701)
+ (Tone)
Version of DSP FW (Q282)
Version of Network microprocessor FW (Q1001)
Center
L ch
Q6002, 6012 Q6003, 6013
Q6032, 6042 Q6033, 6043
Q6052, 6062 Q6053, 6063
C6042 C6043
R6022, 6072 R6023, 6073
R6082, 6092 R6083, 6093
R6102 R6103
+54.5V
+1.1V
Q6030
R6020
+1.0V
+0.6V
R6080
IDLING
-0.3V
CHECK
P6080
ID+
ID-
IDLING
ADJ.
R6040 R6090
-0.4V
-0.6V
-1.1V
Q6040
-54.5V
Surround
R ch
Q6004, 6014
Q6034, 6044
Q6054, 6064
C6044
R6024, 6074
R6084, 6094
R6104
+B
IPRO
L
Q6050
Q6070
R6140
Q6060
VPRO
R6170
VOLH
D6000 R6180
-B
DTR-4.9