Hughes & Kettner GrandMeister 36 Head Service Documents page 29

1 2
R36
Powersoak-Relay
1K0*
D
R-Box-Resonance
Crunch
FX-P-OFF_MOSI2
Lead
Ultra
DFX-TX
DFX-RX
Clean
LED-Store
LED-FX-Access
LED-Boost
LED-FX-Loop
LED-N-Gate
C
BOOST
SW2C
R52
WPML2-N-R
LED-Boost
330R*
BOOST
SW2A 1
R2
2 3
+5V
WPML2-N-R
1K0*
SW2B
4
Crunch
5 6
Boost-SW
WPML2-N-R
C8
100n-K*
FX LOOP
WPML2-N-B
Crunch
R54
SW3C
LED-FX-Loop
B 150R*
FX LOOP
1
SW3A
R3
2 3
+5V
WPML2-N-B
1K0*
SW3B
4
5 6
FX-Loop-SW
WPML2-N-B
C9
Treble_Del-Level
100n-K*
NOISE GATE
WPML2-N-B
R55
SW4C
LED-N-Gate
150R*
NOISE GATE
1
SW4A
R4
2 3
+5V
WPML2-N-B
1K0*
4
SW4B
5 6
N-Gate-SW
WPML2-N-B
C14
A
100n-K*
All rights reserved. No part of this schematic may be reproduced, stored in a retrieval system, transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the author.
1 2
3
FX-P-OFF_MOSI2
TP-2X3-R2.54-B
+5V
TP202
1 2
MISO2
+5V
3 4
SCK2
R39
5 6
10K*
C2
R46
+5V
100n-K* Slave 1R0*
U13
4
VCC +5V
6
VCC
12
PB0 (CLKO/ICP1)
13
PB1 (OC1A)
14 18
PB2 (SS/OC1B) AVCC
15 20
PB3 (MOSI/OC2A) AREF
16 21
PB4 (MISO) GND
17
PB5 (SCK)
7 19
Reverb
PB6 (XTAL1/TOSC1) ADC6
8 22
Treble_Del-Level
PB7 (XTAL2/TOSC2) ADC7
30 23
Mid_Feedback
PD0 (RXD) (ADC0) PC0
31 24
Bass_Del-Time
PD1 (TXD) (ADC1) PC1
32 25
Vol_Mod-Type
PD2 (INT0) (ADC2) PC2
1 26
Gain_Intensity
PD3 (OC2B/INT1) (ADC3) PC3
2 27
C-SDA
PD4 (XCK/T0) (ADC4/SDA) PC4
9 28
C-SCL
PD5 (OC0B/T1) (ADC5/SCL) PC5
10 29
RESET2
PD6 (OC0A/AIN0) (RESET) PC6
11
PD7 (AIN1)
3
GND
5
BC817-25
GND
Q4
ATMEGA88-PA
CHANNEL SWITCH
BASS (DEL-Time)
SW1A SW1C
+5V
Bass_Del-Time
SR1102F-0404-TH SR1102F-0404-TH
5 15
4 14
Clean Clean
C12
3 13
Crunch 100n-K*
Lead Lead
2 12
Ultra Ultra
1 11
SW1B SW1D
SR1102F-0404-TH SR1102F-0404-TH
MID (Feedback)
10 20
9 19 +5V
Mid_Feedback
Clean Clean
8 18
Crunch
Lead Lead
7 17
C11
Ultra Ultra
6 16
100n-K*
CH-SW1
CH-SW2
GAIN (Intensity)
TREBLE (DEL-Level)
+5V +5V
Gain_Intensity
P5
C10 C13
100n-K* 100n-K*
RK16-B10K
REVERB VOLUME (MOD-Type)
+5V +5V
Reverb Vol_Mod-Type
P6A
C15 C16
100n-K* 100n-K*
3
4 5
CH-SW1
CH-SW2
C4
100n-K*
+5V
C3
100n-K*
C26 220n-K-
R41
Slave-RESET
10K*
+5V
P3
U14
8 1
RK16-B10K VCC NC
7 2
WP NC
3
NC
5
C-SDA
SDA
4 6
C-SCL
VSS SCL
CAT24C16WI
P4A
TPTHTH25
TP205
TPTHTH25
P1 TP206
RK16-B10K
I2C-Gate
C-SCL
C-SDA
R42 R45
10K* 10K*
Q6
Q5
BC817-25
P2
BC817-25
RK16-B10K
R43
+5V
10K*
R44
10K*
4 5
6 7
+5V
R48
R49
CH-SW2_MOSI1
1K0*
1K0*
TP-2X3-R2.54-B
TP201
R37
1 2
CH-SW1_MISO1
+5V
3 4
SCK1
4K7*
5 6
R38
4K7*
C6
C5
100n-K* +5V
100n-K*
Master
U12
VCC
VCC
12
Boost-SW
PB0 (CLKO/ICP1)
13
FX-Loop-SW
PB1 (OC1A)
14
N-Gate-SW
PB2 (SS/OC1B) AVCC
15
PB3 (MOSI/OC2A) AREF
16
PB4 (MISO) GND
17
PB5 (SCK)
7
PB6 (XTAL1/TOSC1) ADC6
8
PB7 (XTAL2/TOSC2) ADC7
30
MIDI-IN
PD0 (RXD) (ADC0) PC0
31
MIDI-OUT
PD1 (TXD) (ADC1) PC1
32
PD2 (INT0) (ADC2) PC2
1
I2C-Gate
PD3 (OC2B/INT1) (ADC3) PC3
2
MUTE
PD4 (XCK/T0) (ADC4/SDA) PC4
9
C-Gain1
PD5 (OC0B/T1) (ADC5/SCL) PC5
10
Slave-RESET
PD6 (OC0A/AIN0) (RESET) PC6
11
SPK-Connect
PD7 (AIN1)
GND
GND
ATMEGA168-PA
1MEG0*
R53
22p-K*
C29
C28
22p-K*
X1
CTS-406-8MHZ-18PF
Resonance
Resonance
Presence
Presence
Store-Access-SW
Store-Access-SW
+22V
Soak-SW
Soak-SW
+5V
SPK-Connect
SPK-Connect
LED-Store
LED-Store
LED-FX-Access
LED-FX-Access
MUTE
MUTE
Powersoak-Relay
Powersoak-Relay RK16-B10K-BR
P6B
R-Box-Resonance
R-Box-Resonance BR1
BR2
Clean
Clean
Crunch
Crunch
Lead
Lead
Ultra
Ultra
C-Gain1
C-Gain1
DFX-RX
DFX-RX
DFX-TX
DFX-TX
FX-P-OFF_MOSI2
NA = not assembled part ----- EX = exclusive part, no alternative allowed
FX-P-OFF_MOSI2
HT = high temperature part, assemble with distance from PCB
LED-Boost
LED-Boost
LED-FX-Loop
LED-FX-Loop
LED-N-Gate
LED-N-Gate
66606 St. Wendel / Germany
SDA
SDA
HU0212-SP-R01
Number:
SCL
SCL
Drawn by: B. Schneider
B. Schneider
Checked by:
PCB No.:
Filename: HU0212-SP-R03_Contr.Sch
6 7
8
R14
+22V
10K*
C27
+5V
R51
2K2*
R40
10K*
D
R47
+5V
1R0*
C7
4
+5V
6
100n-K*
18 C30 220n-K-
20
21
19
Resonance
22
Presence
23
POWERFAIL
24
Store-Access-SW
25
Soak-SW
26
27
C-SDA
28
C-SCL
29
RESET1
3
R117 R118
5
4K7* 4K7*
C
+5V +5V
+22V
+5V
SGND
B
RK16-B10K-BR
10n-K* 10n-K*
P4B
C31 C32
BR4 BR1 BR4
BR3 BR2 BR3
SMD-Passer:
TP12
TP-SMD10
TP13
TP-SMD10
Title:
GrandMeister 36
µC and Digi-Pot Board
A
Microcontroller System
1 C
Version: Revision:
Date: 08.02.2013 Page: 5
08.02.2013 7
Date: Pages
8