Sony LLC-8000A User manual
LL CONTROL CONSOLE
LLC-8000A
SERVICE MANUAL
1st Edition
STUDENT EXPANSION BOARD
LU-816A
LL CONFERENCE BOARD
LU-800B
LL CONFERENCE BOARD
LU-801B
This service manual does not show some of the items that
are common to the model LLC-8000. Therefore, use this
Service Manual together with the LLC-8000 Service Manual
(9-977-680-01).
Printed in Japan
Sony Corporation 1999. 6 16
Broadcasting & Professional Systems Company ©1999
LLC-8000A
LU-800B
LU-801B
LU-816A (SY) E
9-955-172-01
The material contained in this manual consists of
information that is the property of Sony Corporation.
Sony Corporation expressly prohibits the duplication of
any portion of this manual or the use thereof for any
purpose other than the operation or maintenance of the
equipment described in this manual without the express
written permission of Sony Corporation.
Le matériel contenu dans ce manuel consiste en
informations qui sont la propriété de Sony Corporation.
Sony Corporation interdit formellement la copie de
quelque partie que ce soit de ce manuel ou son emploi
pour tout autre but que des opérations ou entretiens de
l’équipement à moins d’une permission écrite de Sony
Corporation.
Das in dieser Anleitung enthaltene Material besteht aus
Informationen, die Eigentum der Sony Corporation sind.
Die Sony Corporation untersagt ausdrücklich die
Vervielfältigung jeglicher Teile dieser Anleitung oder den
Gebrauch derselben für irgendeinen anderen Zweck als
die Bedienung oder Wartung der in dieser Anleitung
beschriebenen Ausrüstung ohne ausdrückliche
schriftliche Erlaubnis der Sony Corporation.
1
LLC-8000A
Table of Contents
1. Service Overview
1-1. Relative Manuals.........................................................................................1-1
1-2. Main Changes Made from LLC-8000 System to LLC-8000A System ......1-1
2. Self-Diagnosis
2-1. CPU-240 Board ...........................................................................................2-1
2-1-1. POWER ON Indicator................................................................2-1
2-1-2. Self-diagnosis of the CPU-240 Board ........................................2-2
2-2. Operation Unit.............................................................................................2-5
2-3. ASW-58 Board (LU-800B/LU-801B) ........................................................2-6
2-3-1. LED Indicators When the Main Power Is Turned On................2-6
2-3-2. Self-diagnosis of the ASW-58 Board.........................................2-7
2-3-3. Troubleshooting the ASW-58 Board (LU-800B/LU-801B) ....2-12
3. Semiconductor Pin Assignments
4. Spare Parts
4-1. Notes on Repair Parts..................................................................................4-1
4-2. Exploded Views ..........................................................................................4-2
4-3. Electrical Parts List .....................................................................................4-8
4-4. Packing Materials......................................................................................4-36
5. Circuit Description and Block Diagrams
5-1. Signal Flow in LLC-8000A System............................................................5-1
5-2. Circuit Description ......................................................................................5-1
5-3. Block Diagrams...........................................................................................5-2
5-3-1. Audio..........................................................................................5-2
5-3-2. Audio (ASW-58 Board) .............................................................5-4
5-3-3. DC Power ...................................................................................5-7
5-3-4. ASW-58 Digital Signal ..............................................................5-8
5-3-5. Random Pair and Group Conference Control ..........................5-10
2LLC-8000A
6. Analog Signal Flow
6-1. Standard Type .............................................................................................6-2
6-2. Add-in Type 1 .............................................................................................6-4
6-3. Add-in Type 2 .............................................................................................6-6
6-4. Add-in Type 3 .............................................................................................6-8
7. Schematic Diagrams and Board Layouts
Frame ......................................................................................................................7-3
ASW-58 ............................................................................................................7-4, 16
CPU-240 .........................................................................................................7-10, 18
IF-645A ..........................................................................................................7-12, 20
CN-1810 .........................................................................................................7-13, 19
LED-288 ...............................................................................................................7-14
1-1
LLC-8000A
Section 1
Service Overview
This section describes only the differences between the LLC-8000A and LLC-8000. Therefore, read
Section “3. Service Overview” of the LLC-8000 Service Manual (9-977-680-01) together with this
manual.
1-1. Relative Manuals
Beside this “LLC-8000A Service Manual”, the following manuals are available for LLC-8000A System.
.Operation Manual LLC-8000A 3-866-264-11 (E)
3-866-264-21 (F)
3-866-264-31 (S)
3-866-264-41 (I)
ER-8020 3-858-847-11 (E)
3-855-847-21 (F)
3-855-847-31 (S)
PTU-8 3-859-429-11
.Getting Started Guide MLS-8000A 3-866-424-11
.Installation Manual LLC-8000A 3-202-126-11
MLS-8000A 3-202-337-01
LU-800B/801B 3-202-118-11
.Service Manual LLC-8000 9-977-680-01
ER-8020 9-977-681-01
EA-80 9-955-136-01
PTU-8 9-977-682-01
1-2. Main Changes Made from LLC-8000 System to LLC-8000A System
.The IF-645 board is replaced by the IF-645A board.
.The CN-1810 board is newly added.
.The optional board (ASW-58) is newly added. (LU-800B, LU-801B)
2-1
LLC-8000A
Section 2
Self-Diagnosis
The self-diagnosis helps troubleshooting and field-servicing.
The self-diagnosis software of the LLC-8000A consists of the following programs.
.Self-diagnosis of the CPU-240 board
.Self-diagnosis of the Operation Unit
.Self-diagnosis of the ASW-58 board (LU-800B/LU-801B)
2-1. CPU-240 Board
2-1-1. POWER ON Indicator
The LED’s on the CPU-240 board are illuminated, as follows:
D1 : CPU Run indicator
Flashes in red when CPU main routine works as intended.
D2 : +5 V power supply indicator
Lights in green when the voltage of +5 V is provided.
D18 : Power key input LED
Lights in red when the power key of the operation unit is pressed.
D19 : Signal transmission system indicator
Lights in red when signal transmission system works as intended for the number of students that
are registered on installation setting stage.
CPU-240 Board
CPU
IC60
NORM DIAG
S1
D19 D18 D1 D2
+5 V Power supply indicator (green)
CPU run indicator (red)
Power key input LED (red)
Signal transimission system indicator (red)
2-2 LLC-8000A
2-1-2. Self-diagnosis of the CPU-240 Board
Remove the CPU-240 board with the main power off. Exchange IC43 with the self-diagnosis ROM.
Connect the checker tool. Set the switch S1 to the DIAG position. Then turn on the main power.
The self-diagnosis software of the CPU-240 board starts up.
n
Self-diagnosis ROM (Servicing use only)
IC M27C512-C8000AV110 : 8-759-588-82
Checker
Fabricate the checker tool as shown below for troubleshooting and field-servicing the CPU-240 board.
2-1. Self-Diagnosis of the CPU-240 Board
1
2
3
4
5
6
7
8
10
9
11
12
13
14
1
TXB5
T5
CN5
RXB5
23456
10121314 9 811
+5V
V
DD
GND
74HC00
7
O1
O2
O3
O4
O5
O6
O7
O8
O9
O10
O11
O12
O13
O14
O15
O16
O17
O18
O19
O20
O21
O22
O23
O24
O25
O26
O27
O28
O29
O30
O31
O32
O33
O34
O35
O36
O37
O38
O39
O40
CN1
O1
O2
O3
O4
O5
O6
O7
O8
O9
O10
O11
O12
O13
O14
O15
O16
O17
O18
O19
O20
O21
O22
O23
O24
O25
O26
O27
O28
O29
O30
O31
O32
O33
O34
O35
O36
O37
O38
O39
O40
CN2
O1
O2
O3
O4
O5
O6
O7
O8
O9
O10
O11
O12
O13
O14
O15
O16
O17
O18
O19
O20
O21
O22
O23
O24
O25
O26
O27
O28
O29
O30
O31
O32
O33
O34
O35
O36
O37
O38
O39
O40
CN3
O1
O2
O3
O4
O5
O6
O7
O8
O9
O10
O11
O12
O13
O14
O15
O16
O17
O18
O19
O20
O21
O22
O23
O24
O25
O26
O27
O28
O29
O30
O31
O32
O33
O34
O35
O36
O37
O38
O39
O40
CN4
TXB3
RXB3
TXB4
RXB4
TXB2
RXB2
TXB1
RXB1
O13
O25
O12
O24
O11
O23
O10
O22
O9
O21
O8
O20
O7
O19
O6
O18
O5
O17
O4
O16
O3
O15
O2
O14
O1
CN6
KD2
KD1
KD0
KD3
AS3
AS5
AS2
AS0
AS1
DS0
PCSEL1
AS6
AS7
AS4
T2
T1
T4
T0
T3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN7
10K
10K
10K
10K
+5V
KD3
KD2
KD1
KD0
T4
T3
T2
T1
T0
b8
b7
b6
b5
b4
b3
b2
b1
b0
+6V
b8
b7
b6
b5
b4
b3
b2
b1
b0
b9
DS0
AS7
AS6
AS5
AS4
AS3
AS2
AS1
AS0
PCSEL1
+5V
+5V
GND
A+5V
GND
+12V
AGND
_12V
+6V
_6V
+15V
2-3
LLC-8000A
Connection
2-1. Self-Diagnosis of the CPU-240 Board
Exchange IC43 with the self-diagnosis ROM.
CN1
CN2
CN3
CN4
CN5 S1
NORM DIAG ROM
IC43
CN8 CN6
CN7
CPU-240 Board
1
2
3
4
5
6
7
8
9
DTR
DCD
RXD
RTS
TXD
CTS
POWER +5 V
±6 V
±12 V
±15 V
Connect cable Connect cable
Shorting
Connector
CPU-240 Board Checker
CN8
9P.D-SUB connector
Shorting connector
CN7 CN7
Connect cable
Connect cable
Connect cable
Connect cable
Connect cable
25P.D-SUB connector
CN1
CN2
CN3
CN4
CN5
CN6
CN8
CN1
CN2
CN3
CN4
CN5
CN6
2-4 LLC-8000A
Operation
Servicing on the CPU-240 digital control system is performed with the nine (9) key switches and ten (10)
LED’s, while that on the CPU-240 audio system is done with the CPU-240 board built into the control unit.
First set the key switches, as shown in Section Key Data, according to the check mode, and turn the
power switch on. Refer to Section LED Display and perform the servicing. The self-diagnosis software
begins to work in the selected check mode right after the power switch is turned on.
Perform the digital overall check first and locate systems in which troubles are supposed to be involved.
Be sure to turn off and on the power switch or reset the CPU when the check mode is switched.
Key Data
No. b8 b7 b6 b5 b4 b3 b2 b1 b0 HEX Check Mode
KD3 KD2 KD1 KD0 T4 T3 T2 T1 T0 CODE
1000100000020Digital overall check
(No.2 to 11 once)
2000100001021ROM check (once)
3000100010022RAM check (repeat)
4000100100024NV-RAM check (once)
5000101000028ICMemory check (once)
6001000001041SIO CN1 check (repeat)
7001000010042SIO CN2 check (repeat)
8001000100044SIO CN3 check (repeat)
9001001000048SIO CN4 check (repeat)
10001010000050SIO RS232C check (repeat)
1100101111105FSIO CN5 check (repeat)
No. b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 Check Mode
PCSEL1
DS0 AS7 AS6 AS5 AS4 AS3 AS2 AS1 AS0
1 ROM RAM
NU-RAM
IC MEN
SIO OFF
RS232C
OFF OFF OFF Digital overall check (once)
OK OK OK OK OK 1 OK 1 1 1
2
CHECK
OFF OFF ON OFF OFF OFF OFF OFF ON ROM check (once)
OK110111110
3
CHECK
OFF OFF ON OFF OFF OFF OFF ON OFF RAM check (repeat)
OK110111101
4
CHECK
OFF OFF ON OFF OFF OFF ON OFF OFF NV-RAM check (once)
OK110111011
5
CHECK
OFF OFF ON OFF OFF ON OFF OFF OFF IC Memory check (once)
OK110110111
6
CHECK
OFF ON OFF OFF OFF OFF OFF OFF ON SIO CN1 check (repeat)
OK101111110
7
CHECK
OFF ON OFF OFF OFF OFF OFF ON OFF SIO CN2 check (repeat)
OK101111101
8
CHECK
OFF ON OFF OFF OFF OFF ON OFF OFF SIO CN3 check (repeat)
OK101111011
9
CHECK
OFF ON OFF OFF OFF ON OFF OFF OFF SIO CN4 check (repeat)
OK101110111
10
CHECK
OFF ON OFF OFF ON OFF OFF OFF OFF SIO RS232C check (repeat)
OK101101111
11
CHECK
OFF ON OFF ON OFF OFF OFF OFF ON SIO CN5 check (repeat)
OK101011110
LED Display
LED
1. CHECK OK : LED ON
2. ON : LED ON
3. OFF : LED OFF
2-1. Self-Diagnosis of the CPU-240 Board
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3
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