Symptom

I had an issue with this pedal, suspecting something wrong with the voltage regulator (actually, the issue was caused by external PSU itself).

Since I was not able to find the schematics, I opened it and decided to do a quick review of the chips.

Description of chips

Once removed all the screws and nuts, be aware the PCB is super-stiff to remove from the casing. It took me 15 minutes at least to do so.

Here are the chips I was able to identify:

Id	Man	Chip ref	Description	Used for
U1	CL	CZ4272-CZZ	114 dB, 24-Bit, 192 kHz Stereo Codec	DAC
U2	TI	TLC2272C	Dual operational amplifier
U3	No chip found with this reference
U4	AD	ADSP-BF532 SBSTZ400	400 MHz High Performance Blackfin Digital Signal Processor	Signal processing
U5		SJ6E
U6	No chip found with this reference
U7	TI	MC33078	Dual high-speed low noise operational amplifier
U8	TI	MC33078	Dual high-speed low noise operational amplifier
U9	TI	MC33078	Dual high-speed low noise operational amplifier
U10	ET	EM639165TS-7G	8Mega x 16 Synchronous DRAM (SDRAM)	Working memory
U11	TI	TPS60403DBV	Unregulated 60 mA charge pump voltage inverter	Signal symmetrization
U12	ON	CS51413	1.5 A, 520 kHz Low Voltage Buck Regulators with External Bias or Synchronization Capability	Possibly Phantom power
U13	ST	78M05	Voltage regulator	Power supply
U14	NS	ADC108S022	8-Channel, 50 ksps to 200 ksps, 10-Bit A/D Converter	Scanning of potentiometers
U15	No chip found with this reference
U16	ST	25P10VP	1 Mbit Low Voltage Paged Flash Memory With 20 MHz Serial SPI Bus Interface	Flash for main DSP
U17	NS	LM3578A	Switching regulator
U18	TI	MC33078	Dual high-speed low noise operational amplifier
U19	TI	MC33078	Dual high-speed low noise operational amplifier
U20	ON	H11L1-ND	Opto-isolator 5.3KV Open collector 6-DIP	MIDI input
U21	TT	AB45S	SSR RELAY SPST-NO 200MA 0-60V	Possibly Phantom power

Identification of manufacturers