Amp Adjustments - Yamaha crx-e200 Service Manual

RX-E200
QQ
3 7 63 1515 0
FACTORY PRESET
BAND
U, C, R
FM (MHz)
A, B, G, R,
U, C, R
AM (kHz)
A, B, G, R
NOTE 1) PRESET PAGE ................................................. A : FM
CAUTION : When executing Test mode No. 2 RAM CLEAR, be sure to write down the preset memory contents of the
tuner, using a table like the one shown below. Execution of RAM CLEAR will set the memory contents of the
tuner back to the factory preset state which means that all the memories preset by the user will be erased.
Preset group
A
B
C
D
E

AMP ADJUSTMENTS

Confirmation of Idling Current
1) No signal applied.
2) Non-loaded condition.
3) Aging is not neccessary.
TE
L 13942296513
Test Poin
Item
R214
MAIN L
(Between terminal)
R220
MAIN R
(Between terminal)
* Confirm that the idling current is 0.25mV — 15mV after 60 minutes.
R220
R214
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MARKETS
1
(100k/10k) 98.1
(50k/9k) 98.10
(100k/10k) 630
(50k/9k) 630
P1 P2
Rating (DC)
If the measured voltage exceeds 5mV, cut the lead wire of R197(L ch)
or R204(R ch) and then check again if each measured value satisfies the
0.1mV—5mV
rating.
Q115
R204
R197
Q112
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y
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8
PRESET No.
2 3 4
95.1 87.5 101.5
95.10 87.50 101.50
1080 1400 530
1080 1404 531
B : AM C : FM D : AM E : FM
P3 P4 P5
Q Q
3 6 7 1 3
0.1mV ~ 5mV (DC)
R214 (L ch)
R220 (R ch)
Note)
•
If R197(L ch) or R204(R ch) have already been cut off and
idling current does not flow, reconnect R197(1kΩ) or
u163
R204(1kΩ).
•
Q112 and Q115 are transistors for temperature correction.
.
Apply silicone grease to the contact surface with the heat
sink.
2 9 9 4 2 8
5 6 7
107.9 88.1 106.1
108.00 88.10 106.10
1710 900 1350
1611 900 1350
P6 P7
1 5 0 5 8 2 9 9 4
Note
R197 (L ch)
R204 (R ch)
Cut OFF
m
co
9 9
8
107.9
107.90
1440
1440
P8
2 8 9 9