Kenwood KAV 5500 Service Manual

Page 1

m STERK-i7§500/7500 KENWOOD?

SERVICE MANUAL

©1990-10 PRINTED IN JAPAN
BS1-4207-OO(S)1541

< KA-V7500 >
Knob (SURROUND SELECTOR)
(K29-4008-03)
Knob (CENTER MODE) Metallic cabinet Panel

(K29-4009-04) (A01-1805-01) (A20-6103-02)

Knob (POWER) Knob (SOURCE DIRECT) Knob (VOLUME)
(K29-3835-O4) (K29-4035-O4) (K29-4012-O4)

Knob (INPUT SELECTOR) Cvlindrical
(K29-4037-03) receptacle

Foot Knob (INPUT SELECTOR) Knob (VIDEO REC) (5060410'05 Phono jack (3P)
(J02»1002-05) ><4 (K29-4007-O3) (K29>4011-O4) (E1 3-0312-05)
Knob (BASS, TREBLE,
BALANCE)
(K29-4010-04)
Binding post Phono jack (4P) Screw terminal board (4P)
(N08'0128»35) (E13-140205) X2 (E20-1402-05)
Cylindrical receptacle AC power cord
(EOE-0409-05) X2 (E30-)
Miniature
Phono jack (8P) Screw terminal board (2P) phone jack Power cord bushing
(13»0827-05) ><2 (E20-0238-05) (51 1018305, (J42.0083-05)

©©
@@

D" 3',

AC outler
(EO3-l

PhonojackMPl PIN Phonojack Phonojack Screwterminal board (4P) Phono jack

(EB-043305) (J12-0091-05) (E13-0827-05)><2 (E13-0192-05l (£20.14o1.05) x2 (93.025405)
Phono jack Screw terminal board (4P)
(334403-05) lE20-1402-05)

' Refer to parts list on page 43.

Page 7

KA-V5500/75OO % '
CIRCUIT DESCRIPTION

Pin Functions
,uPD75216Acw-B40

Pin No, Pin Name 1/0 Name Description
1 SO 0 Segment (1 FL segment signal
2 82 0 Segment c FL segment signal
3 - S1 0 Segment b FL segment signal
4 So 0 Segment a FL segment signal WWW a (7 WWW W" F
5 POO/INT4 I KRO Key Return 0
6 FONS? O lMPCLK Serial clock for superimpose
7 POZ/SO O IMPSI Serial data for superimpose
8 P03/Sl 1 fi Power failure detection (0 Power fallure)
9 P10/INTO l REMllVl Remote control input (interrupt)
10 P11/INT1 l KR1 Key Return 1
11 P12/INT2 l KR2 <<<<< "kg; Return 2 7
12 P13/TlO l __ KR3 Key Return 3
13 P20 l ROTRYO NC
14 P21 1 ROTRYi NC WWI.
15 P22 1 EEP ~ DI EEPROM serial data lnput
1e P23/BUZ l BTL NC
17 P30 5 EEP - DO EEPROM serial data output
18 P31 6 EEPCLK EEPROM serial Clock
19 P32 v5 SBUSY External serial communication busy Slgnal MN-
20 P33 1/5 SDATA External serial communication data Signal
21 P60 6 0 Extension l/O (M50791sP) control signal
22 P61 5 ,_ Vii/Wm, LA Extension l/O (M50791SP) control signal
23 P62 6 E Extension l/O (M50791SP) control signal
24 P83 6 R-ES Extension I/O (M50791SP) control signal
25 P40 5 VOLDI Serlal data for digital delay, rear volume and center volume
26 P41 5 VOLCLK Serlal Clock for digital delay, rear volume and center volume
27 P42 5 Serial or audio lLC7821/22) and surround (TC9162/63)
28 P43 6 Seriaic DC for audio (LC7821/22) and surround (TC9162/63)
29 PPO 6 Power ON/OFF relay control 11* ON)
30 X1 # Microprocessor system clock oscilylatlon pin M
31 X2 - - Microprocessor system clockvoscillatlon pin .7 W
32 vSS - - GND
33 > 34 XTZ ~ - Mlcroprocessor subolock oscillatlon pin (unused) i
35 P50 5 PRO Extension l/O (M50791SP) data signal
36 P51 5 PR1 Extension I/O (M50791SP) data Slgnal
37 P52 6 PR2 Extension I/O (M50791SP) data signal M
38 P53 6 PR3 Extension |/O (M50791SP) data signal H M
39 W - - Reset input
40 T0 5 36,116 FL digit signal
41 T1 5 16 FL digit signal
42 T2 5 16 FL diglt signal
43 13 6 10(3 FL digit signal
44 14 6 so FL digit signal
45 T5 6 so FL digit signal 7