Philips PCL304 - Tools and Test Equipment

6.5
Power
on
Selftest
Error
Codes
V86P POST ERROR CODE:
So 1/0 Port 80H
PROCESSOR TEST 1:
PROCESSOR STATUS VERIFI}
CATION CONTINUE TEST IF
OK.
PROCESSOR TEST 2:
READ/WRITE/VERIFY ALL
: REGISTERS. |
INITIALIZE 820100
INITIALIZE 820425
INITIALIZE 82C601 |
INITIALIZE CHIPS (DMA, 8259)
uU Oo
n +
N
mo
ar oO
Ql S Allow
Ni = Clam =l> oO AiI2o aa ord
m|-< 9 DIO ee
25
ols BIn= _ O
OZ
_<|§9
| POSTS
| POsT6
VIDEO, PARI
} POST9
TEST FONT SRAM |
NITIALIZE REAL TIME CLOCK |
i
TEST COMS CHECKSUM
TEST FIRST 64K MEMORY |
BANK
j POST 15
POST 21
|
POST
22
SETUP
INTERRUPT
TABLE
IN
|
|
FIRST
64K
[
Post24
_————s«|
‘TEST
VIDEOMEMORY
_|
|
POST
25
TEST
8259
MASK
BITS
-CHAN-
|
|
NEL
1
|
[
Post28
_——_—i||_
TEST
COMS
CHECKSUM
FLAG
|
|
|
CLEARMEMORY
SIZE
[
Post30____—_—'|’_
SIZING
SYSTEMMEMORY
_|
|
POST
31
TEST
BASE
MEMORY
64K
TO
|
|
TOP
OF
MEMORY
|
POST
32
TEST
STUCK
8259'S
INTER-
|
|
RUPT
|
BITS
|
POST
34
TEST
8259
INTERRUPT
FUNC-
|
oe
al
TIONALITY
|
SIZING
EXPANSION
MEMORY
J]
SYSTEM |
| POST 35
i
POST
36
SETTING
EXPANSION
MEMOR
ec
cere
a
SETTING COM/PRN PORT |
POST
42
KEYBOARD
ENABLE
AND
TEST|
|
SETUP
HARDWARE
INTERRUP
|
|
TABLE
|
ies
[Pots
|
Semoun
|
|
POST
44
TEST
PARALLEL
PORT
TEST
SERIAL
PORT
TEST GAME PORT
[ Bosra? | CHECK e067 NSTALLATION
|
POST
49
SCAN
EXTERNAL
BIOS
AND
| EXECUTE IT
6-5
6.6 Tools and test equipment
The following special items are required.
For Diagnostics Test:
(1) Loopback Adapter (For Serial Port Test)
Interconnect the 9-Pin, female, D-shell connet@r
Pin No. Pin No.
Carrier Detect 1-5 Signal Gourd
Received Data 2-3 Transmittd data
Data Set Ready 6-4 Data Terrinal Ready
Request to Send 7-8 Clear to Sed
(2) Loopback Adapter (For Parallel Port Test)
Interconnect 25-Pin, male, D-shel! connector a Sshown below.
Pin No. Pin No.
1- 13
2- 15
10 - 16
11 - 17
12 - 14
For Assembly/Disassembly
(1) 5.5mm Nut Driver
(2) “+" Screw Driver
CS 55 817