Onkyo HTR-550 Service Manual page 62

IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS-15
Q5501 : R2S15211FP (8 ch Electronic Volume and 11 Input Selector and Tone Control)-3/3
TERMINAL DESCRIPTION
PIN No. Name
19,17, FROUT, FLOUT,
14,12, 6-OUT, 5-OUT,
9,7, 4-OUT, 3-OUT,
4,2
2-OUT, 1-OUT
20,16, FRC, FLC,
15,11,
6-C, 5-C,
10,6,
4-C, 3-C,
5,1
2-C, 1-C
3,8,
AGND
13,18
TREL, TRER
23,27
BASSL1, BASSL2
21,22,
25,26 BASSR1, BASSR2
24
AVCC
35,34, FRIN2, FLIN2,
33,32,
SRN2, SLIN2,
31,30,
SWIN2, CIN2,
29,28
SBRIN2, SBLIN2
73,74, FLIN1, FRIN1,
75,76, CIN1, SWIN1,
77,78, SLIN1, SRIN1,
79,80
SBLIN1, SBRIN1
41 DGND
42 DATA
43 CLOCK
44
AVEE
INL1, INL2, INL3,
46,48,50,
INL4, INL5, INL6,
52,54,56,
58,60,64 INL7, INL8, INL9
45,47,49,
INR1, INR2, INR3,
51,53,55,
INR4, INR5, INR6,
57,59,63
INR7, INR8, INR9
40 MONO
38,39
SUBL, SUBR
36,37 ADCL, ADCR
72
RECL3
71 RECR3
61,62, INRA/RECR1, INLA/RECL1,
65,66, INRB/RECR2, INLB/RECL2,
67,68,
INR10/RECR4, INL10/RECL4,
69,70
INR11/RECR5, INL11/RECL5
Function
Output pin of FL/FR/C/SW/SL/SR/SBL/SBR channel
Connects capacitor for reducing click noise of
L/R/C/SW/SL/SR/SBL/SBR channel volume
Analog ground of internal circuit
Frequency characteristic setting pin of L/R channel tone control(Treble)
Frequency characteristic setting pin of L/R channel tone control(Bass)
Positive power supply to internal circuit
Input pin of L/R/C/SW/SL/SR/SBL/SBR channel (Multi IN 1/2)
Digital ground of internal circuit
Input pin of control data
Input pin of control clock
Negative power supply to internal circuit
Input pin of L/R channel (Input Selector)
Input pin of monaural (Input Selector)
Output pin for L/R channel SUB Output
Output pin for L/R channel ADC
Output pin for L/R channel REC Output
Input pin of L/R channel (Input Selector)/
Output pin for L/R channel REC Output
TX-SR505/505E