Service Program; Factory Mode; Version Of Microprocessor (Cpu) And Fld Segment Check Mode; Input And Output Test Mode - Marantz SR-14EX Service Manual

8. SERVICE PROGRAM

REMARK
If these service programs are set, All user preset memories will be cleared.
1. FACTORY mode (Tracking point memory)
This FACTORY mode can be use for measurement of the tuner circuit.
When the product is POWER ON, press both [ MEMO ] and [ DISPLAY OFF ] buttons simultaneously over 3 seconds.
FLD shows "FACTORY" for 3 seconds. Press [ PRESET ] button, FLD shows "PRESET SEL".
The tuning frequencies are memorized as follows.
Band
FM AUTO
[MHz]
Band SCAN STEP
10 kHz(U)
9kHz(F, K, S)
AM [kHz]
MW/LW(N)

2. Version of microprocessor (CPU) and FLD segment check mode

This mode is available to confirm the version of each CPU and to check all luminous segments by the following steps.
1. When the product is FACTORY mode (Refer to the above mentioned "1. FACTORY mode"), press [ DISPLAY OFF ]
button. FLD shows "MARANTZ SR-14EX".
2. Press [ DISPLAY OFF ] button. FLD shows the version of program code for QU01(main CPU).
3. Press [ DISPLAY OFF ] button. FLD shows the version of program code for Q961(SURROUND CPU).
4. Press [ DISPLAY OFF ] button. All segments turn off and LED's (TV, LD, DVD, VCR1, DSS/VCR2, AUX, STANDBY) light
up.
5. Press [ DISPLAY OFF ] button. G1 and G2 segments light up step by step.
6. Press [ DISPLAY OFF ] button. Segments of checker pattern light up step by step.
7. Press [ DISPLAY OFF ] button. All segment of FLD and LED's turn off.
8. Press [ DISPLAY OFF ] button. It will return to 1. (FLD shows "MARANTZ SR-14EX".)

3. Input and output test mode

This mode is available for the functions as shown in Fig 1 by the following steps.
1. When the product is FACTORY mode ( Refer to above mentioned "1. FACTORY mode"), press both [ MEMO ] and [ TREBLE ]
buttons simultaneously.
2. FLD shows "AUTO CD". By pressing both [ MEMO ] and [ TREBLE
in the following order.
ORDER INDICATION for
1 AUTO CD
2 ALL CH CD
VERSION P1
U, K, N, S 90.0 98.0
F 78.0 83.0
P5
600 1000
603 999
603 999
Fig 1 Input and output test mode
FLD
Input selection mode (without using system setup menu)
5 or 6 channels output mode (This mode is available for 2 channels input)
P2 P3 P4
106.0 87.5
88.0 76.0
P6 P7 P8
1400
1404
1404 171
] buttons simultaneously each time, the mode is changed
MODE FUNCTION
67
P9 P10 P11
520
531
207 270 152
P12
531