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QQ
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OPERATION CHECK-1
SPEAKER PROTECT-1 (SPEAKER OUT DC VOLTAGE DETECTION)
[When]
1. Exchange power transistors (Q6050 - 6056, Q6060 - 6066).
2. Exchange amplifier PC board ass'y (NAAMP-9477, NACLA-9493).
[Procedure]
<Note>
No load. No input.
1. Press and hold down CD button, then press ON/STANDBY button while the unit is powered ON.
" Test - _ " is displayed only for 5 seconds.
2. Press GAME/TV button, while the characters of " Test - _ " are displayed.
The unit will be in the state of " Test-4-00 ".
3. Repeatedly press TONE + button until the characters of " Test-4-22 " are displayed.
Check whether the operation starts and continues automatically as follows.
TE
L 13942296513
If all channels are OK, the characters of " Test - 4 - 36 " are displayed.
4. Press ON/STANDBY button to finish.
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.
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Te s t - _
Blinks
Te s t - 4 - 0 0
Te s t - 4 - 2 2
Te s t - 4 - 2 2
Front L ch
Check
P r o te c t OK
Te s t - 4 - 2 3
Front R ch
Check
P r o te c t OK
Te s t - 4 - 2 4
Center ch
Check
P r o te c t OK
Te s t - 4 - 2 5
Surround L ch
Check
P r o te c t OK
Te s t - 4 - 3 6
C l e a r
x
ao
u163
y
i
http://www.xiaoyu163.com
2 9
8
Q Q
Tes t - 4-26
3
6 7
1 3
1 5
Prot e c t O K
Tes t - 4-27
Prot e c t O K
Tes t - 4-28
Prot e c t O K
Turn off
co
.
9 4
2 8
0 5
8
2 9
9 4
2 8
Surround R ch
Check
Surround Back L ch
Check
Surround Back R ch
Check
m
DTR-6.9
9 9
9 9
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