55
APPENDIX
For the following serial range, there are modifications to the MCU board, the CONN#1 board and the CONN#2
board:
PHASE
MCU board
CONN#1
CONN#2
Serial No.
I
1. WITHOUT SHIELD
CABLE
1. WITHOUT 2PIN
HEADER
1, U3 IN-
STALLED
K19VISO1001001-K19VISO1004000
K1XVISO1004001-K1XVISO1006000
K1YVISO1006001-K1YVISO1007000
K1ZVISO1007001-K1ZVISO1010000
II
1. WITH 2PIN SHIELD
CABLE SOLDER ON
THE 20PIN HEADER (J8)
PIN 7 AND PIN 9
2. CUT PIN 9 OF 20PIN
CABLE (J8)
1. WITH 2PIN HEADER
SOLDER ON THE 20PIN
HEADER (J8) PIN 7 AND
PIN 9
1. U3 NOT
INSTALLED
K1ZVISO1010001-K1ZVISO1011000
K21VISO1011001-K21VISO1012000
K24VISO1W012001-K24VISO1W013000
III
1. WITH 2PIN SHIELD
CABLE SOLDER ON J10
ON CONN#1
2. CUT THE CONNEC-
TION TO THE 20PIN
HEADER J8 BY REMOV-
ING RESISTOR R85
1. ADD 2PIN HEADER
J10
2. CUT THE CONNEC-
TION TO THE 20PIN
HEADER J8 BY REMOV-
ING RESISTOR R2
1. U3 NOT
INSTALLED
K25VISO1W013001-K25VISO1W015000
K27VISO1015001-K27VISO1015200(CCC)
K27VISO1015201-K27VISO1016000
From Phase I, we cut pin 4 and pin 8 of the 16pin cable of J2A. U3 is used for ESD protection of the above two
pin. As they are cut, we remove U3 from Phase II.
Combination of Boards
Required Modifications
Phase I MCU + Phase III CONN#1
- need to short R2 on CONN#1
Phase II MCU + Phase III CONN#1
- Connect the shield cable to header J10 on CONN#1
Phase I CONN#1 + Phase III MCU
- need to short R85 on MCU
- 2pin shield cable left unconnected
Phase II CONN#1 + Phase III MCU
- Connect the shield cable to the 2pin header solder on
CONN#1 J8 pin 7 and pin 9
Summary of Contents for VISO 1
Page 2: ...2 SAFETY INFORMATION 3 Contains Contains transmitter module ...
Page 7: ...7 3 Remove the 2 pcs M6 screws at the bottom of the unit 4 Pull out the I O stand assembly ...
Page 13: ...13 PCB LAYOUT MCU BOARD PSU BOARD ...
Page 15: ...15 DDFA BOARD SOLDER SIDE ...
Page 16: ...16 REMOTE BOARD COMPONENT SIDE REMOTE BOARD SOLDER SIDE ...
Page 17: ...17 KEY BOARD COMPONENT SIDE KEY BOARD SOLDER SIDE ...
Page 40: ...40 MCU U2 U3 U9 MCU Q1 Q2 MCU U4 U5 U8 MCU U6 ...
Page 42: ...42 PSU U1 PSU Q1 PSU U2 ...
Page 43: ...43 IO U1 CONN 2 U2 PSU U5 PSU U3 DDFA Q3 ...
Page 44: ...44 DDFA Q4 DDFA Q5 DDFA Q6 ...
Page 45: ...45 DDFA Q7 Q18 DDFA Q8 DDFA Q17 Q19 DDFA U1 ...
Page 47: ...47 DDFA U11 U13 DDFA U15 DDFA U10 U12 U14 DDFA U16 DDFA U19 ...
Page 48: ...48 REMOTE Q1 CONN 2 U4 REMOTE IC101 DDFA U20 ...
Page 54: ...53 PACKING DIAGRAM PARTS LIST 2 1 4 3 5 6 7 9 8 10 11 12 14 16 15 17 13 18 19 7 10 ...
Page 71: ...55 SERVICE MANUAL VISO 1 BT Wireless Digital Music System NAD ELECTRONICS LTD TORONTO ...