Sony STR-K900 Service Manual - Page 15
DIGITAL Board, Circuit Boards Location - speaker system
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• Circuit Boards Location SPEAKER B board POWER board STANDBY board AC SELECT board (E51 only) SPEAKER board VIDEO board HDMI board ADCC board HEADPHONE board VIDEO 3 board DISPLAY board DIGITAL board MAIN board • Waveforms - DIGITAL Board - 1 IC1501 9 (MCLK1) 72 ns 1 V/DIV, 40 ns/DIV 2 IC1101 id (X1) 3.4 Vp-p 41.6 ns 1 V/DIV, 20 ns/DIV 3 IC1301 ws (XIN) 4.2 Vp-p 81 ns 1 V/DIV, 40 ns/DIV 4.4 Vp-p STR-K880/K900 STR-K880/K900 15 15
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STR-K880/K900
STR-K880/K900
• Waveforms
– DIGITAL Board –
1
IC1501
9
(MCLK1)
1 V/DIV, 40 ns/DIV
72 ns
3.4 Vp-p
2
IC1101
id
(X1)
1 V/DIV, 20 ns/DIV
41.6
n
s
4.2 Vp-p
3
IC1301
ws
(XIN)
1 V/DIV, 40 ns/DIV
81 ns
4.4 Vp-p
•
Circuit Boards Location
DIGITAL board
MAIN board
POWER board
ADCC board
HEADPHONE board
STANDBY board
AC SELECT board (E51 only)
SPEAKER board
SPEAKER B board
HDMI board
VIDEO board
DISPLAY board
VIDEO 3 board