Sony MDX-C8900R Service Manual page 57

– MAIN Board –
IC4 BU2624FV-E2
REFERENCE
XIN 1
DIVIDER
2
CE
I/O
CK 4 SHIFT REGISTER LATCH
CTL
DA
5
CD
6
P0 7
9
P1
P3 10
IC400 CXA1946BR
36 35 34 33
LOUD
8dB STEP
GAIN12 37
GAIN11 38
IN14 39
IN13 40
IN12 41
IN11 42
LATCH
ZCDET
SHIFT
REGISTER
IN21 43
IN22 44
IN23 45
IN24 46
GAIN21 47
GAIN22 48
LOUD
8dB STEP
1 2 3 4
PHASE
DET
MAIN
PRESCALER
COUNT
IF COUNT
CTL
20BIT COUNT
32 31 30 29 28 27 26
VOLUME VOLUME
TONE
1dB STEP
VCTBUFF
VCTBUFF
VCTBUFF
LATCH
CONTROL
VCTBUFF
VCTBUFF
VCTBUFF
VOLUME VOLUME
TONE
1dB STEP
5 6 7 8 9 10 11
IC101 NJM2360AM (TE2)
20 XOUT
19
VSS
CS 1
Q1
18 PD
ES 2
17 VDD
CT 3
16 FMIN
VREF
GND 4
1.25V
AMIN
15
P2
14
13 IFIN
12
SD
P4
11
25
24 FNTO1
FADER
23 REO1
22 CE
21 CLK
20 DGND
19 GND
45k
45k
18 VCC
17 VCT
16 DATA
15 TIMER
14 REO2
FADER
13 FNTO2
12
– 77 –
Q2 8 CD
Q S
R
7 SI
Ipk
6 V+
CT OSC
+
5 INVIN
–
COMP