Test Instructions Sacd Mono Board; Miscellaneous Nuclei; General Start-Up Measurements; Supply Check - Marantz SA12 Service Manual

Error code Error description
131300 Test succeeded.
131301 I2C bus busy before start.
131302 I2C access failed.
131400 Test succeeded.
131401 I2C bus busy before start.
131402 I2C access failed.
131500 Test succeeded.
131501 I2C bus busy before start.
131502 I2C access failed.
5.4.7

Miscellaneous Nuclei

Error code Error description
140000 Test succeeded.
140001 I2C access failed.
140100 Test succeeded.
140101 I2C access failed.
140200 Test succeeded.
140300 Test succeeded.
140301 I2C bus busy.
140302 I2C device write access time-out.
140303 I2C device no write acknowledge.
140304 I2C device write failed.
140400 Test succeeded.
140401 I2C bus busy before start.
140402 I2C access failed.
140403 Setup of SCART switch failed.
140500 Test succeeded.
140501 I2C bus busy before start.
140502 I2C access failed.
140503 Setup of SCART switch failed.
140600 Test succeeded.
140601 I2C bus busy before start.
140602 I2C access failed.
140603 Setup of SCART switch failed.
140700 Test succeeded.
140701 I2C bus busy.
140702 I2C device read access time-out.
140703 I2C device no read acknowledge.
140704 I2C device read failed.
140800 Test succeeded.
140801 Setup of ColourSetup chip failed.
140802 I2C device write failed.
140900 Test succeeded.
140901 Setup of ColourSetup chip failed.
140902 I2C device write failed.
140903 I2C device read failed.
141000 Test succeeded.
141100 Test succeeded.
5.5

Test instructions SACD mono board

5.5.1 General
Impedance of measuring-equipment should be > 1MΩ
Most tests have to be done by software commands.
Together with the software command you will find a Ref.#
nbr. This is the number of the diagnostic nucleus used for
this test. More detailed information can be found in the
description of the command mode interface.
Levels: Most measurements are digital measurements.
The high and low levels in this document got to have next
specification: low
(LVTTL) LOW : < 0.4V (TTL) HIGH: > 4.5V (TTL)
All voltages marked with "stby" have to stay on during
standby.
Because all clocks are derived from the SACD clock
(384FS_in) from the DAC board, this board should
always be connected to the mono board.
The linear power supply is switched on/off by the
STB_OUT signal from the mono board to the DAC board.
5.5.2

General start-up measurements

Supply check:

1. Measure the voltages on the pins of the connector 1600
with a multimeter.
2. Also check the following power supplies:
pin TP
1600-1 F604
1600-2 F604
1600-3 F631
1600-4 F614
1600-5 F615
1600-6 F623
1600-7 F623
1600-8 F623
1600-9 F618
1600-10 F634
1600-11 F636
1600-12 F623
1600-13 F675
Testpoint F608: +3V3 (5%. (Check IC7605 in case of failure)
Testpoint F632: +3V3 (5%. (Check IC7622 in case of failure)
Testpoint F101: +9V (5%. (Check IC7109 in case of failure)
1. Current at the input of the power supply
Check the supply currents to be sure that there are no major
failures on the board.
Measure the currents flowing toward the mono board using a
Tektronix AM503B current probe on the wires between the
switch mode power supply and the connector 1600.
pin TP
1600-1 F605
1600-2 F605
1600-3 F631
1600-4 F614
1600-5 F615
1600-6 F623
1600-7 F623
1600-8 F623
1600-9 F618
1600-10 F634
1600-11 F636
1600-12 F623
1600-13 F675
24
: < 0.3V (LVTTL) high : > 3.0V
Signal_name Voltage
+3V3 +3V3
+3V3 +3V3
+5V +5V (0V during standby)
+5Vstby +5V
+6Vstby +6V
GND 0V
GND 0V
GND 0V
-8Vstby -8V
STB_CONT 0V (+5V during standby)
+12Vstby +12V
GND 0V
PWR_FAIL +2.1V (1.4V during
standby)
Signal_name measured
+3V3 560 mA
+3V3
+5V 510 mA
+5Vstby 2 mA
+6Vstby < 1 mA
GND
GND
GND
-8Vstby 54 mA
STB_CONT
+12Vstby 90 mA
GND
PWR_FAIL