Yamaha DG-Stomp Service Manual - Page 28
Browse online or download pdf Service Manual for Amplifier Yamaha DG-Stomp. Yamaha DG-Stomp 43 pages. Guitar pre-amplifier with effects
Also for Yamaha DG-Stomp: Supplementary Manual (1 pages), Owner's Manual (32 pages)
- 1. Specifications
- 2. Panel Layout
- 3. Block Diagram
- 4. Circuit Board Layout
- 5. Wiring
- 6. Disassembly Procedure
- 7. Lsi Pin Description
- 8. IC Block Diagram
- 9. Circuit Boards
- 10. Test Program
- 11. Error Messages
- 12. MIDI Implementation Chart
- 13. Parts List
- 14. Guitar Pre-Amplifier with Effects
- 15. Overall Assembly
- 16. Electrical Parts
DG-Stomp
TEST PROGRAM
A. Connect each terminal as follows
• INPUT
• OUT L/MONO
• OUT R
• HEAD PHONES
• EXP. PEDAL
Pin 1 of JK: MIN of VR, Pin 2 of JK: MAX of VR, Pin3
of JK: CENTER of VR
• DIGITAL OUT
• MIDI IN, MIDI OUT
• HIGH/LOW SW
OFF: 0dB, ON: +10dB
• AC IN Connect the AC adapter.
• STAND-BY SW
B. TEST PROGRAM
0: LED Check
1: SW Check
2: VR Check
3: Battery Check
4: MIDI Check
5: SRAM Check
6: DSP Check
C. STARTING THE TEST PROGRAM
While pressing the MANUAL, STORE and HALL switches,
turn on the POWER switch. The TEST program will then
be started.
D. SELECTING THE TEST NUMBER
Using the UP and DOWN switches, select the test number
and press the STORE switch to confirm selection.
E. TEST PROCEDURE
0: LED Check
• Using the UP and DOWN switches, select "0" and
then press the STORE switch.
• LED segments light up one after another starting with
"UP". When "SP.SIM" is reached, "BANK", "3", "2" and
"1" light up followed by 7 segments in the following
order from the left end. After that, all LED segments
light up and go out.
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Monaural input
Monaural output (RL47Kohm)
Monaural output (RL47Kohm)
Stereo output (323ohm each)
Connect VR of B50K.
Connect the DA converter.
Connect IN and OUT by using
DIN 5P cable.
Used to select the input level.
Power switch
1
7
6
5
4
2
3
1
2
3
8